Subjects -> ENVIRONMENTAL STUDIES (Total: 913 journals)
    - ENVIRONMENTAL STUDIES (810 journals)
    - POLLUTION (31 journals)
    - TOXICOLOGY AND ENVIRONMENTAL SAFETY (54 journals)
    - WASTE MANAGEMENT (18 journals)

ENVIRONMENTAL STUDIES (810 journals)            First | 1 2 3 4 5     

Showing 601 - 378 of 378 Journals sorted alphabetically
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis     Hybrid Journal   (Followers: 5)
Mutation Research/Genetic Toxicology and Environmental Mutagenesis     Hybrid Journal   (Followers: 8)
Nano Select     Open Access  
Nanotechnology for Environmental Engineering     Hybrid Journal  
Nativa     Open Access  
Natur und Recht     Hybrid Journal   (Followers: 7)
Natural Areas Journal     Full-text available via subscription   (Followers: 10)
Natural Hazards     Hybrid Journal   (Followers: 53)
Natural Resources     Open Access  
Natural Resources & Engineering     Hybrid Journal  
Natural Resources and Environmental Issues     Open Access   (Followers: 2)
Nature and Culture     Full-text available via subscription   (Followers: 11)
Nature-Based Solutions     Open Access  
Nepal Journal of Environmental Science     Open Access  
NeuroToxicology     Hybrid Journal   (Followers: 1)
Neurotoxicology and Teratology     Hybrid Journal   (Followers: 3)
NEW SOLUTIONS: A Journal of Environmental and Occupational Health Policy     Full-text available via subscription   (Followers: 2)
New Zealand Journal of Environmental Law     Full-text available via subscription   (Followers: 4)
NJAS : Wageningen Journal of Life Sciences     Hybrid Journal  
Novos Cadernos NAEA     Open Access  
npj Urban Sustainability     Open Access  
Observatorio Medioambiental     Open Access  
Occupational and Environmental Medicine     Hybrid Journal   (Followers: 18)
Ochrona Srodowiska i Zasobów Naturalnych : Environmental Protection and Natural Resources     Open Access  
Oecologia     Hybrid Journal   (Followers: 54)
Oikos     Hybrid Journal   (Followers: 55)
One Earth     Hybrid Journal   (Followers: 2)
One Ecosystem     Open Access  
Open Environmental Research Journal     Open Access   (Followers: 1)
Open Journal of Marine Science     Open Access   (Followers: 6)
Open Journal of Modern Hydrology     Open Access   (Followers: 5)
Our Nature     Open Access   (Followers: 1)
Pace Environmental Law Review     Open Access   (Followers: 4)
Packaging, Transport, Storage & Security of Radioactive Material     Hybrid Journal   (Followers: 2)
Palaeobiodiversity and Palaeoenvironments     Hybrid Journal   (Followers: 3)
Particle and Fibre Toxicology     Open Access   (Followers: 2)
Pastos y Forrajes     Open Access  
Peer Community Journal     Open Access   (Followers: 4)
Perspectives in Ecology and Conservation     Full-text available via subscription   (Followers: 1)
Pharmacology & Therapeutics     Hybrid Journal   (Followers: 3)
Pharmacology Biochemistry and Behavior     Hybrid Journal   (Followers: 2)
Physio-Géo     Open Access   (Followers: 1)
Pittsburgh Journal of Environmental and Public Health Law     Open Access  
Planet     Open Access   (Followers: 4)
Planeta Amazônia : Revista Internacional de Direito Ambiental e Políticas Públicas     Open Access  
Planning & Environmental Law: Issues and decisions that impact the built and natural environments     Hybrid Journal   (Followers: 6)
Plant Ecology & Diversity     Partially Free   (Followers: 13)
Plant Knowledge Journal     Open Access   (Followers: 1)
Plant, Cell & Environment     Hybrid Journal   (Followers: 8)
Plant-Environment Interactions     Open Access  
Plants, People, Planet     Open Access   (Followers: 1)
Polar Journal     Hybrid Journal   (Followers: 2)
Political Studies     Hybrid Journal   (Followers: 42)
Political Studies Review     Hybrid Journal   (Followers: 18)
Population and Environment     Hybrid Journal   (Followers: 6)
Population Ecology     Hybrid Journal   (Followers: 12)
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management     Full-text available via subscription  
Presence: Virtual and Augmented Reality     Hybrid Journal   (Followers: 2)
Proceedings of the Institution of Civil Engineers - Waste and Resource Management     Hybrid Journal   (Followers: 1)
Proceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment     Hybrid Journal   (Followers: 3)
Proceedings of the International Academy of Ecology and Environmental Sciences     Open Access   (Followers: 1)
Proceedings of the Vertebrate Pest Conference     Open Access  
Process Integration and Optimization for Sustainability     Hybrid Journal  
Process Safety and Environmental Protection     Hybrid Journal   (Followers: 4)
Producción + Limpia     Open Access  
Progress in Disaster Science     Open Access   (Followers: 1)
Progress in Industrial Ecology, An International Journal     Hybrid Journal   (Followers: 2)
Projets de Paysage     Open Access  
Psychological Assessment     Full-text available via subscription   (Followers: 12)
Public Money & Management     Hybrid Journal   (Followers: 7)
Quaternary     Open Access  
Recursos Rurais     Open Access  
REDER : Revista de Estudios Latinoamericanos sobre Reducción del Riesgo de Desastres     Open Access  
Regional Environmental Change     Open Access   (Followers: 2)
Regional Sustainability     Open Access   (Followers: 1)
Rekayasa     Open Access  
Remediation Journal     Hybrid Journal   (Followers: 8)
Remote Sensing Applications : Society and Environment     Full-text available via subscription   (Followers: 9)
Remote Sensing Letters     Hybrid Journal   (Followers: 46)
Rendiconti Lincei     Hybrid Journal  
Renewable Energy and Environmental Sustainability     Open Access   (Followers: 1)
Renewable Energy Focus     Full-text available via subscription   (Followers: 7)
Research & Reviews : Journal of Ecology     Full-text available via subscription   (Followers: 3)
Research and Practice for Persons with Severe Disabilities     Full-text available via subscription   (Followers: 3)
Research Journal of Environmental Sciences     Open Access   (Followers: 2)
Research Journal of Environmental Toxicology     Open Access   (Followers: 2)
Resources     Open Access  
Resources and Environment     Open Access  
Resources, Conservation & Recycling     Hybrid Journal   (Followers: 20)
Resources, Conservation & Recycling : X     Open Access   (Followers: 1)
Resources, Conservation & Recycling Advances     Open Access   (Followers: 1)
Rethinking Ecology     Open Access  
Reuse/Recycle Newsletter     Hybrid Journal  
Review of Agricultural, Food and Environmental Studies     Hybrid Journal  
Review of Environmental Economics and Policy     Hybrid Journal   (Followers: 11)
Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica     Open Access  
Revista Ambivalências     Open Access  
Revista Brasileira de Ciências Ambientais     Open Access  
Revista Brasileira de Meio Ambiente     Open Access  
Revista Chapingo. Serie Ciencias Forestales y del Ambiente     Open Access  
Revista Ciência, Tecnologia & Ambiente     Open Access  
Revista de Ciencias Ambientales     Open Access  
Revista de Direito Ambiental e Socioambientalismo     Open Access  
Revista de Direito e Sustentabilidade     Open Access  
Revista de Gestão Ambiental e Sustentabilidade - GeAS     Open Access  
Revista de Investigación en Agroproducción Sustentable     Open Access  
Revista de Salud Ambiental     Open Access  
Revista ECOVIDA     Open Access   (Followers: 3)
Revista Eletrônica de Gestão e Tecnologias Ambientais     Open Access  
Revista Geama     Open Access  
Revista Hábitat Sustenable     Open Access  
Revista Iberoamericana Ambiente & Sustentabilidad     Open Access  
Revista Kawsaypacha: Sociedad y Medio Ambiente     Open Access  
Revista Laborativa     Open Access  
Revista Meio Ambiente e Sustentabilidade     Open Access  
Revista Mundi Meio Ambiente e Agrárias     Open Access  
Revista Verde de Agroecologia e Desenvolvimento Sustentável     Open Access   (Followers: 2)
Rivista di Studi sulla Sostenibilità     Full-text available via subscription   (Followers: 1)
RUDN Journal of Ecology and Life Safety     Open Access  
Russian Journal of Ecology     Hybrid Journal   (Followers: 1)
Safety Science     Hybrid Journal   (Followers: 29)
San Francisco Estuary and Watershed Science     Open Access  
SAR and QSAR in Environmental Research     Hybrid Journal   (Followers: 1)
Saúde e Meio Ambiente : Revista Interdisciplinar     Open Access  
Scandinavian Journal of Work, Environment & Health     Partially Free   (Followers: 13)
Science of The Total Environment     Hybrid Journal   (Followers: 36)
Sciences Eaux & Territoires : la Revue du Cemagref     Open Access  
Social and Environmental Accountability Journal     Hybrid Journal   (Followers: 3)
Sociedad y Ambiente     Open Access  
Soil and Sediment Contamination: An International Journal     Hybrid Journal   (Followers: 3)
Soil and Tillage Research     Hybrid Journal   (Followers: 9)
South Australian Geographical Journal     Open Access  
South Pacific Journal of Natural and Applied Sciences     Hybrid Journal  
Southern African Journal of Environmental Education     Open Access  
Southern Forests : a Journal of Forest Science     Hybrid Journal   (Followers: 3)
Sriwijaya Journal of Environment     Open Access  
Stochastic Environmental Research and Risk Assessment     Hybrid Journal   (Followers: 4)
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
Studies in Conservation     Hybrid Journal   (Followers: 16)
Sustainability     Open Access   (Followers: 21)
Sustainability Agri Food and Environmental Research     Open Access   (Followers: 4)
Sustainability in Environment     Open Access   (Followers: 2)
Sustainable and Resilient Infrastructure     Hybrid Journal  
Sustainable Cities and Society     Hybrid Journal   (Followers: 22)
Sustainable Development     Hybrid Journal   (Followers: 14)
Sustainable Development Law & Policy     Open Access   (Followers: 12)
Sustainable Development Strategy and Practise     Open Access   (Followers: 4)
Sustainable Horizons     Full-text available via subscription   (Followers: 1)
Sustainable Technology and Entrepreneurship     Full-text available via subscription   (Followers: 2)
Sustinere : Journal of Environment and Sustainability     Open Access  
TECHNE - Journal of Technology for Architecture and Environment     Open Access   (Followers: 11)
Tecnogestión     Open Access  
Territorio della Ricerca su Insediamenti e Ambiente. Rivista internazionale di cultura urbanistica     Open Access  
The Historic Environment : Policy & Practice     Hybrid Journal   (Followers: 4)
The International Journal on Media Management     Hybrid Journal   (Followers: 7)
The Ring     Open Access  
Theoretical Ecology     Hybrid Journal   (Followers: 15)
Toxicologic Pathology     Hybrid Journal   (Followers: 19)
Toxicological & Environmental Chemistry     Hybrid Journal   (Followers: 2)
Toxicological Sciences     Hybrid Journal   (Followers: 11)
Toxicology     Hybrid Journal   (Followers: 19)
Toxicology and Applied Pharmacology     Hybrid Journal   (Followers: 25)
Toxicology and Industrial Health     Hybrid Journal   (Followers: 6)
Toxicology in Vitro     Hybrid Journal   (Followers: 12)
Toxicology Letters     Hybrid Journal   (Followers: 16)
Toxicology Mechanisms and Methods     Hybrid Journal   (Followers: 9)
Toxicon     Hybrid Journal   (Followers: 5)
Toxicon : X     Open Access  
Toxin Reviews     Hybrid Journal  
Transactions on Environment and Electrical Engineering     Open Access  
Transportation Research Part D: Transport and Environment     Hybrid Journal   (Followers: 28)
Transportation Safety and Environment     Open Access   (Followers: 1)
Transylvanian Review of Systematical and Ecological Research     Open Access  
Trends in Ecology & Evolution     Full-text available via subscription   (Followers: 230)
Trends in Environmental Analytical Chemistry     Hybrid Journal   (Followers: 3)
Trends in Pharmacological Sciences     Full-text available via subscription   (Followers: 21)
Tropicultura     Open Access  
Turkish Journal of Engineering and Environmental Sciences     Open Access   (Followers: 1)
UCLA Journal of Environmental Law and Policy     Open Access   (Followers: 1)
UD y la Geomática     Open Access  
Universidad y Ciencia     Open Access  
Universidad y Ciencia     Open Access  
UNM Environmental Journals     Open Access  
Urban Studies     Hybrid Journal   (Followers: 68)
Urban Transformations     Open Access  
Veredas do Direito : Direito Ambiental e Desenvolvimento Sustentável     Open Access  
VertigO - la revue électronique en sciences de l’environnement     Open Access   (Followers: 1)
Villanova Environmental Law Journal     Open Access  
Waste Management & Research     Hybrid Journal   (Followers: 6)
Water Conservation Science and Engineering     Hybrid Journal   (Followers: 1)
Water Environment Research     Full-text available via subscription   (Followers: 43)
Water International     Hybrid Journal   (Followers: 19)
Water Security     Hybrid Journal   (Followers: 5)
Water, Air, & Soil Pollution : Focus     Hybrid Journal   (Followers: 7)
Water, Air, & Soil Pollution     Open Access   (Followers: 21)
Weather and Forecasting     Hybrid Journal   (Followers: 43)
Weather, Climate, and Society     Hybrid Journal   (Followers: 16)
Web Ecology     Open Access   (Followers: 3)
Wetlands     Hybrid Journal   (Followers: 24)
Wilderness & Environmental Medicine     Hybrid Journal   (Followers: 2)

  First | 1 2 3 4 5     

Similar Journals
Journal Cover
Water Conservation Science and Engineering
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2366-3340 - ISSN (Online) 2364-5687
Published by Springer-Verlag Homepage  [2469 journals]
  • Evaluation of Blue and Green Water Using Combine Stream Flow and Soil
           Moisture Simulation in Wunna Watershed, India

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      Abstract: Abstract Quantitative assessment of water availability using blue and green water will enhance water resource management at the local scale. Wunna watershed is a crucial water resource of the Godavari river basin. Calibration and validation are the essential procedure for hydrological modelling assessment. This current study used the combined monthly streamflow and reanalysis derived soil moisture data to estimate blue and green water availability and spatial and temporal variability using the Soil and Water Assessment Tool (SWAT) model. The Nash–Sutcliffe efficiency (NSE) and percent of bias (PBIAS) were used to assess the model performance. It was found that monthly observed streamflow and soil moisture data were well simulated during calibration and validation with NSE greater than 0.50 and less PBIAS value. Blue water and green water storage has been increased from 2001 to 2016, whereas green water flow declined from 2001 to 2016. A higher amount of blue water and green water storage was observed in the southeast region except green water flow and less in the northwest area. This study promotes the use of soil moisture for sustainable water management.
      PubDate: 2022-04-21
       
  • Land Use and Climate Change Impacts on Streamflow Using SWAT Model, Middle
           Awash Sub Basin, Ethiopia

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      Abstract: Abstract Assessing the impact of land use and climate change on streamflow is important for watershed management. This study aims to examine the possible impacts of land use and climate change on the streamflow of the Jewaha catchment. The Soil and Water Assessment Tool (SWAT) model is used to simulate streamflow by integrating complex interactions between climate and land use/cover. The past land-use changes were determined by classifying the Landsat images from 1990, 2000, and 2018 with Earth Resource Development System (ERDAS) Imagine 2015. The potential of climate change impact was examined under Representative Concentration Pathway (RCP) 2.6 and RCP 8.5 emission scenarios for 2041–2070 time horizon with the baseline 1971–2000. Climate change scenarios over the catchment indicated an increasing trend in temperature, in both RCP 2.6 and RCP 8.5, and variability in rainfall patterns in the catchment. The average annual temperature will increase by 0.1 °C and 0.15 °C for the RCP 2.6 and RCP 8.5 scenarios, respectively. Generally, the result indicated that in the future summer streamflow highly increases due to climate and land-use change and a decrease in the dry season because of the changes in the climate variables.
      PubDate: 2022-04-19
       
  • Estimation of Basaka Lake Dilution Process and Its Neutralization Periods,
           Oromia Region, Ethiopia

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      Abstract: Abstract Lake Basaka is a shallow saline lake in the Oromia region of Ethiopia. This study was carried out to estimate the dilution process of Lake Basaka and its maximum neutralization period to use the water resource for various purposes. Eight sampling points were chosen to reflect consideration of all possible activities that may affect lake water quality. Sampling points were taken in the dry and wet seasons of the Awash River and Basaka Lake to verify the current status of water quality in the years 2021 The water quality of Awash River showed that almost all selected parameters concentration was below the permissible limits of [20]. This indicates the water quality of Awash River has good quality. The water quality of Lake Basaka result showed that there was a higher concentration of electric conductivity, carbonate, bicarbonate, chloride, and sodium which indicates poor quality. The dilution of the lake with Awash River was the best alternative to neutralize the lake water and use it for different purposes. The mixing ratio of the Awash River and Lake Basaka was fixed in the laboratory. As a result, 5:95 is the best ratio to neutralize Lake Basaka. Lake Basaka neutralization period was fixed in lake water and Awash River dilution. By considering the quality and quantity of lake and River water, the lake water would be restored in a period of 4 years. The study concluded that dilution and control of external loading restore the lake in to good condition within four years.
      PubDate: 2022-04-19
       
  • Comparative Performance Evaluation of Small-Scale Irrigations by Using
           Internal Process and External Indicators on Chiro and Sewur Irrigation
           Schemes in North Shewa Zone, Amhara, Ethiopia

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      Abstract: Abstract This study ventured to evaluate the performance of two small-scale irrigation schemes in North Shewa Zone, Efratana gidim, and Kewet woreda. The schemes were Chiro with 175 ha of irrigable, 125 ha of irrigated land, and Sewur with 191 ha designed, and currently, it expands to 301 ha of irrigable. Primary and secondary data collection methods were used. Nine sample fields were selected from each irrigation scheme under their location to evaluate the irrigation water use efficiency at the field level (from the upper, middle, and lower water users). CROPWAT 8.0 software was used to estimate the crop water. The average application efficiencies were 63.36 and 69.52%, conveyance efficiencies were 82.73 and 77.94%, storage efficiencies were 77.55 and 82.22%, and the overall scheme efficiencies that were 54.07 and 53.25% were internal performance indicators at Chiro and Sewur irrigation scheme, respectively. In addition to this, the comparative performance indicator analysis, outputs per unit irrigated area of the two schemes were 3823.05 and 5568.60 US$/ha on Chiro and Sewur, respectively. The value of the output per unit command area of Chiro 3329.63US$/ha was too lower than the value of Sewur 14,737.85US$/ha. The output per unit irrigation supply for Chiro was 1.02, while in Sewur 1.93 US$/m3. Output per water consumed was 1.01 in Chiro and 1.32 US$/m3 for Sewur. The ratios of relative water supply and relative irrigation supplies were 2.33 and 2.66 for Chiro and 1.99 and 1.80 for Sewur irrigation projects, respectively. This indicates that irrigation water is not a constraint and a higher amount of water was diverted at Chiro, but the reverse is true for the Sewur irrigation scheme. The cropping intensity, irrigation ratio, and sustainable irrigated lands were 122, 7, and 51% in Chiro and 168, 100, and 158% in Sewur, respectively. To sustain the schemes, proper water and land management are mandatory.
      PubDate: 2022-04-11
       
  • Spatial and Temporal Variations of the Physicochemical Parameters of the
           Water Quality of Lake Basaka, Oromia Region, Ethiopia

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      Abstract: Abstract The water quality of Lake Basaka is currently influenced by natural and anthropogenic activities. The objective of this study was to examine the spatial and temporal variations in physicochemical water quality parameters in Lake Basaka. The water sample was collected in the dry and wet seasons for the verification of some selected parameters. Laboratory analysis was performed at the Abbay Basin Development Authority Water and Wastewater Laboratory. Statistical analysis of physicochemical parameters was used in the dry and rainy seasons during the year 2021. An analysis of variance (ANOVA) was performed to measure the significant spatio-temporal variation of the physicochemical parameters of water quality. The ANOVA results indicated that the physicochemical indicators of water quality have a significant variation with time and space. Spatial maps were also generated using the GIS (interpolation) tool to understand the spatial distribution of each water quality indicator in Lake Basaka. The result shows a high spatial variation of PH, EC, Na, F, and bicarbonate in the Abadir and Addis Ababa roadside. The temporal variation of the quality of Lake Basaka shows a decreasing trend due to the dilution of freshwater (runoff or hot springs) towards Lake Basaka. The water quality index (WQI) was used to assess the general state of the water quality of the lake for irrigation purposes. Lake Basaka’s water quality index is 103.97, indicating poor water quality in the lake. In general, this document revealed that the water status of Lake Basaka is currently not suitable for any purpose due to poor quality, as a result, the expansion of the lake becomes a great challenge for the city of Metahara and the sugar plantation of Metahara from time to time.
      PubDate: 2022-04-02
       
  • Analysis and Characterization of Hydrological Drought Under Future Climate
           Change Using the SWAT Model in Tana Sub-basin, Ethiopia

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      Abstract: Abstract Climate variability leads to hydrological extremes (floods and droughts) in Ethiopia, regardless of their intensity, duration, and frequency of occurrence. Therefore, this study focuses on the analysis and characterization of hydrological droughts under the future impacts of climate change using the SWAT model in the Lake Tana sub-basin. Future projections of climate data were obtained from dynamically reduced daily precipitation and temperatures from the CORDEX-Africa Program. The potential impact of climate change was examined under the RCP 4.5 emission scenarios for the time horizon 2011–2031, 2032–2052, and 2053–2073 with the baseline 1986–2005. For this study, the widely used modified Mann–Kendall test was run at a 10% significance level on time series data for each of the seven stations. The result of the Mann–Kendall (S) statistical test indicates that the temperature increases by 0.85 °C per decade and the precipitation increases insignificantly in all seasons. The standard streamflow index (SSFI) was used to characterize hydrological drought under historical and future climate change in the Tana sub-basin. The severity, duration, and frequency of hydrological drought were calculated on time scales from 6 to 24 months. Hydrological drought occurred in the Tana sub-basin due to climate change. This was achieved through the development of drought indices that are capable of timely characterizing and evaluating drought at different temporal scales. Assessing the future impacts of climate change on the characteristics of hydrological droughts is one of the important measures to implement sustainable water resource management and effective disaster mitigation in the sub-basin.
      PubDate: 2022-03-19
       
  • Evaluation of Conservation Tillage Methods for Soil Moisture Conservation
           and Maize Grain Yield in Low Moisture Areas of SNNPR, Ethiopia

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      Abstract: Abstract Conservation tillage is a promising tillage practice for enhancing soil moisture conservation. The objective of the study is to evaluate conservation tillage methods on soil moisture and maize grain yield in Silte and Gurage zone of Ethiopia. No tillage, one-time tillage, two times tillage, and conventional tillage methods were evaluated. The treatments were laid out in randomized complete block design with three replications for three consecutive years (2018–2020). Besides soil moisture data, selected physical and chemical soil properties were collected. Economic analysis was also computed for each tillage method to select cost effective conservation tillage methods. The result reveals, conservation tillage methods had better soil infiltration and soil moisture content relative to conventional tillage. There was no significant difference between treatments in soil organic carbon, total nitrogen, and phosphorus in the top 10 cm in the Mareko site. However, except for phosphorus, significant differences (p < 0.05) between treatments in soil organic carbon and nitrogen were detected in the 10–20 cm depth. The maize yield and yield components are significantly affected by treatments at the Mareko site and not significant at Mito. The results support that conservation tillage tested in this study could contribute to the improvement of soil properties and maize yield in study sites.
      PubDate: 2022-03-16
       
  • Understanding the Impact of Spot Market Electricity Price on Wastewater
           Asset Management Strategy

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      Abstract: Abstract Development of an advanced pumping control scheme is one of the useful methods that can be applied in operational optimisation of wastewater pumps. Optimisation of pumping control can benefit the utility by overall cost saving using different electricity pricing schemes from the energy market. As electricity prices can be varied based on the spot market in some countries such as Australia, the consideration of operating the pumps at the most favourable electricity price, when managed correctly, can offer remarkable savings. This paper provides understanding on the electricity spot price behaviour of South Australia in the National Electricity Market (NEM). Half-hourly electricity spot price data of over 22 years from January 1999 to June 2021 were analysed to investigate the key characteristics of spot prices, including seasonality (intraday, intraweek and seasonal price patterns), spiky behaviour and occurrences of negative prices. In addition, the possible impacts of other factors on electricity spot prices such as electricity demand and weather conditions on pump control were examined. Results indicate a strong relationship between electricity demand and spot price with the Pearson correlation coefficient up to R = 0.95, and extreme high spot prices tended to occur on scorching days with the maximum temperature above 35 °C when air-conditioner usage was high. This paper also explains the importance of electricity spot prices in the wastewater pump on/off operations and analyses opportunities for cost savings by including electricity spot price forecasts as an input of the smart controller to enhance the efficiency of the real-time pumping control.
      PubDate: 2022-03-05
       
  • Investigation of groundwater potential in quaternary undifferentiated
           geological formation in Fogera district, Amhara, Ethiopia

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      Abstract: Abstract In Ethiopia's Amhara Region's Fogera district, quaternary undifferentiated geological formations have critical layers for groundwater potential. The recent technology of Arc GIS-Tool and RS-data has vulnerable to groundwater potential study. Five major input criteria were used to evaluate groundwater potential: type of lithology, soil, land use, slope gradient and drainage density. The groundwater potential was evaluated using just a multi-criteria decision analysis (MCDA) and analytical hierarchy process (AHP) in a GIS system. The outcome of this investigation can be categorized into three parts: good, moderate and poor, with occupied region of good 86.79 km2 (16.65%), moderate115.62 km2 (22.18%) and poor318.85 km2 (61.16%). The highest area was classified as poor potential zone, which accounted of 61.16% of the total area. The validation of the investigation has been conducted with well discharge and transmitivity of the materials in the study area. Average discharge and transmitivity values in lacustrine, alluvium and colluviums deposits are about 45.25 l/s and 285.11 m2 /d, respectively, while in basalt flow is about 1–2 l/s and2.9 m2/d in the study area.
      PubDate: 2022-02-14
      DOI: 10.1007/s41101-022-00130-7
       
  • Land Use/Cover Change Impacts on Hydrology Using SWAT Model on Borkena
           Watershed, Ethiopia

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      Abstract: Abstract Land use/cover change has been a key research priority throughout the planet with multi-directional impacts on both human and natural systems. The changes in land use/cover have affected the surface hydrology and altered the hydrological cycle (Skaggs et al. in Agric Water Manag 86(1–2), 140–149, 2006). This study is concentrated on assessing the effect of land use/cover change on the hydrology of the Borkena watershed. The study was examined by Arc GIS10.3. SWAT model used with GIS to assess the impact of land use and land cover change on streamflow. For this study, SWAT Calibration and Uncertainty Procedures (SWAT-CUP) was selected to do sensitivity analysis, calibration, and validation. The temporal change in land use/cover was analyzed for the years 1986, 2000, and 2011. Analysis of land cover changes showed that agricultural land increased from 18.64 to 49.75%, still as urban areas from 1.16 to 10.17% between 1986 and 2011. While shrubland decreased from 10.97 to 8.29%, forest decreases focused 7.25 to 23.24%, grassland decreased from 10.72 to 8.45%, and wetland decreased from 1.26 to 0.08% between 1986 and 2011 respectively. The result of calibration and validation for the monthly flow showed that there is a good relationship between measured and simulated streamflow with the model performance evaluation; for calibration, the coefficient of determination is 0.93 and Nash Sutcliffe efficiency is 0.89 and for validation, the coefficient of determination is 0.98 and Nash Sutcliffe efficiency is 0.95. Within the calibration and validation period, there is a good correlation between rainfall and surface runoff in the watershed with the percentage of fit greater than 90%. The annual surface runoff for the 1986, 2000, and 2011 land use/cover periods is 152.37 mm, 193.44 mm, and 198.8 mm, respectively. The model results showed that the hydrology characteristics changed because of land use/cover changes during the study periods. This study only focuses on the impact of land use/cover change on streamflow components such as surface runoff. The study plays a crucial role to create the power of planners to implement sound policies to reduce undesirable land use and land cover impacts on streamflow.
      PubDate: 2022-02-08
      DOI: 10.1007/s41101-022-00128-1
       
  • Municipal Residential Water Consumption Estimation Techniques Using
           Traditional and Soft Computing Approach: a Review

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      Abstract: Abstract Rate of urbanization in towns and cities is so rapid, which leads to increase in the demand of water. Any developmental activities depend on availability of water. It is necessary to serve residents with better urban infrastructure by balancing both supply and demand. Hence, identifying the factors influencing consumption of water in residential area is very important. In this paper, climatic variables and socio-economic factors influencing water consumption and its computing techniques are discussed. Many studies showed that soft computing models are excellent models for predictions; however, they have been exiguously reported. Hence, here the advantages of soft computing methods are discussed and compared with traditional methods. In the present study, soft computing techniques and its applications such as fuzzy logic (FL), artificial neural network (ANN), adaptive neuro fuzzy inference system (ANFIS) and different wavelets are summarized and reviewed from problem point of view and application point of view. Several information on the possible future research, application and combinations using soft computing methods were discussed.
      PubDate: 2022-02-01
      DOI: 10.1007/s41101-022-00127-2
       
  • Capacity Augmentation of Water Supply Schemes—a Case Study of
           Varkala Scheme

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      Abstract: Abstract Supplying water for a growing population for multiple purposes poses many challenges to the water service organisations. Vamanapuram River is the sole source of piped water supply to the Varkala region in Kerala, which is a densely populated area. Identifying an alternate source of water is the need of the hour as this source of piped water supply turns completely dry during peak summer. The present study deals with finding a solution to the problem of non-reliability of water sources in the Varkala region. The present water status of the Varkala region including ground water availability and piped connection details was initially determined by conducting field surveys and geospatial mapping. Water demand of the region is estimated by calculating water foot print. Alternate source of water supply was identified using geospatial mapping by considering minimum cost, water quality and yield. The yield of the new source was determined by calculating the runoff generated in a watershed. The runoff has been determined using the Soil Conservation Service-Curve Number (SCS-CN) method. Based on water quality test result, brackish water desalination treatment process has been proposed for the new identified source in this study.
      PubDate: 2022-01-18
      DOI: 10.1007/s41101-021-00123-y
       
  • Optimal Water Allocation Under Climate Change, Based on Stochastic Dynamic
           Programming Model Approach in Ribb Reservoir, Amhara, Ethiopia

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      Abstract: Abstract Optimal operation of reservoir policies is very important for water resource planning, development, and management, but it is very challenging and complicated when dealing with climate change impacts. The objective of this paper was to assess the future irrigation and water supply development and operation at Ribb reservoir in the face of climate change. In this study, a calibrated and validated Soil and Water Assessment Tool (SWAT) was used to model runoff inflow into the Ribb reservoir under present and future climate scenarios. Inflow to the reservoir was simulated using hydro-climatic data. Observed and projected inflows to the reservoir were used as inputs to the stochastic dynamic reservoir operation model to optimize irrigation in reservoir release, storage, and final level pool storage. From the results of the model, the optimized release of a reservoir in the dry season, there is a shortage of water allocation to the irrigation demand in the normal operating policy. This implies the release does not meet the demand for further water supply systems in the dry season. This analysis can be used by water resources planners and managers to develop effective reservoir operation techniques with low climate change impact to increase water release both for irrigation and water supply for the local community.
      PubDate: 2022-01-14
      DOI: 10.1007/s41101-021-00125-w
       
  • Nickel Removal by Adsorption/Photoelectrochemistry on ZnS Prepared by
           Chemical Bath Deposition

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      Abstract: Abstract Nickel is a natural element used in a variety of mineral forms, and its mobilization is regulated by the physicochemical qualities of the soil. Its release into the environment is linked to the industries, oil and coal-burning power stations, and waste incinerators, and is therefore a source of air, water, and soil pollutions. In order to reduce these effects, many materials are used as photocatalysts under sunlight. Among the candidates, the blende ZnS prepared by chemical bath deposition (CBD) is a wide band gap semiconductor with a direct optical transition of 3.92 eV obtained from the diffuse reflectance. The X-ray diffraction pattern showed narrow peaks with a well crystallization. It was studied electrochemically to assess its photocatalytic properties for the nickel deposition. The electrochemical impedance spectroscopy (EIS) confirmed the semiconductor behavior under UV illumination. At pH ~ 7, its conduction band (− 1.18 VSCE), determined from the capacitance−2–potential (C−2–E) plot derives from Zn2+: 4 s orbital. The compound works as n-type semiconductor and is located below the level of Ni2+ (− 0.59 VSCE), yielding a spontaneous Ni2+ reduction to elemental state. The efficiency of Ni deposition was dependent on the ZnS amount of and pH; these parameters were studied in order to find optimal conditions for the Ni2+ photoreduction. The results display a high removal efficiency of Ni2+ (100 mg L−1) after 1-h adsorption/2-h solar light and the best ZnS dose was obtained for 75 mg/100 mL where 99% of nickel was photoelectrodeposited at natural pH. The kinetic of Ni2+ photoreduction obeys a first-order model with a half-photocatalytic life of 89 min.
      PubDate: 2022-01-05
      DOI: 10.1007/s41101-021-00126-9
       
  • Correction to: The Harmful Effect of the Hydro-Electric Dams Upstream of
           the Mekong River: Effect on the Ecosystems and Livelihoods of People in
           Mekong Delta, Vietnam

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      PubDate: 2021-11-25
      DOI: 10.1007/s41101-021-00122-z
       
  • The Anodising Industry Wastewater: Considerations of Its Treatment for
           Environmental Protection

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      Abstract: Abstract The anodising industry releases toxic effluents which have been treated using various technologies over the years. In this paper, we review separation, oxidative degradation and biological degradation wastewater treatment technologies for the anodising industry effluent. We also examined the suitability of these processes based on the effluent nature and composition. The objective was to synthesise the literature to ensure a proper understanding of the research progress and to highlight grey areas that require more investigative insight. It was observed in the review that the wastewater has a very low pH and is rich in heavy metals like aluminium, magnesium and phosphates and other anions. Techniques like nanofiltration, reverse osmosis and adsorption were shown to be able to effectively handle the variety of pollutant species in the wastewater (achieving pollutant removal percentage of > 90%). Oxidative and biological degradation were unsuitable for treating anodising industry wastewater albeit with a serious dearth in published literature. The major limitations of oxidative degradation processes are the non-biodegradability of heavy metals and the •OH radical scavenging of anions like phosphates, sulphates and nitrates. For biological degradation, the very low pH and high concentration of heavy metals make it unsuitable for the survival of most microorganisms. It is recommended that the improvisation of operating conditions of existing technologies and the consideration of alternative tertiary strategies of wastewater treatment to achieve zero liquid discharge and actualisation of the relevant sustainable development goals should be considered.
      PubDate: 2021-10-26
      DOI: 10.1007/s41101-021-00121-0
       
  • Regulation of Color, pH, and Biochemical Oxygen Demand of Asa River Water
           Using a Luffa cylindrica Biomass Packed Bed

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      Abstract: Abstract Asa River is of strategic importance to the citizens of Ilorin, Nigeria, because it meets the basic water needs of the community and its surroundings. The river is however polluted and requires some form of treatment before it can be used. The aim of this study was to investigate the performance of a Luffa cylindrica biomass packed bed for the remediation of color and biochemical oxygen demand (BOD) and the pH regulation of Asa river water. The fibers were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM–EDS). FTIR modification only led to slight changes in the functional groups of the fibers. EDS revealed some changes in the fiber composition due to NaOH modification. The inorganics present were all less than 5% (except for calcium in the modified fibers). SEM revealed a very plain surface of the fibers. The color was reduced from 9.88 to 4.7 TCU and 4.37 TCU for the unmodified and modified fibers respectively after 2 h. Both fiber types were able to effectively regulate the pH to the acceptable 6.5–8.5 threshold after 2 h. The BOD was reduced from 3.7 to 2.8 mg/L and 1.7 mg/L for the unmodified and modified fibers respectively after 2 h. Both color and pH were reduced below WHO permissible limit by the current set-up. Fiber modification improved the packed bed performance for color and BOD reduction.
      PubDate: 2021-10-07
      DOI: 10.1007/s41101-021-00120-1
       
  • Conservatory Management of Natural Resources in the Naâma Region
           (Southwest Algeria)

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      Abstract: Abstract This work was carried out in the Naâma area to determine the appropriate techniques for natural resource conservation of the agricultural holdings surveyed in this region. The results show that combining the mechanical methods (threshold in gabion, threshold in dry stone and hillside reservoirs) and the biological ones (setting in defense, reforestation, rustic planting, etc.) can give the best result to conserve the natural resources. The investigation carried out with farmers of thirty farms allowed us to determine some peasant of water and soil conservation techniques (WSCT) implemented in this area, notably basins, seguia, mulching, and dry stonewalls. On the other hand, some thresholds were practical and very well adapted to the physical conditions of this region. Still, they are partially degraded due to the influence of intense rainfalls and violent winds, which usually require normal controls after each hydrological event. The average cost to install a complete system of natural resource conservation in this area (torrential corrections and biological plantation) could be estimated from 1200 to 4000 DZD/m3. The sensitization of people in the fight against any factor of land and environmental degradation is significant because this precious heritage that constitutes the land requests their participation in the various development programs on these steppe areas.
      PubDate: 2021-10-05
      DOI: 10.1007/s41101-021-00118-9
       
  • Assessment of Groundwater Quality Index Using Geographic Information
           

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      Abstract: Abstract The present study was conducted to evaluate the groundwater quality for drinking purpose in selected locations of rural Ajmer and Bhilwara districts of Rajasthan, India. A total of 30 groundwater samples were collected during June 2015 and the samples were analysed for physicochemical properties, major cations and anions in the laboratory using the standard procedures of the American Public Health Association. Major ions like Ca+2, Mg+2, Na+, K+, Cl−, NO3− and SO4−2 were calculated. The results of the study are illustrated with the help of descriptive statistics, Piper trilinear, Durov diagram, and geospatial mapping and water quality index (WQI). This work aimed to understand the status of groundwater quality and the spatial distribution of parameters to recognize the quality of drinking water. The results show that majority of sampling point clusters in the Piper diagram fall in the NaCl zone. WQI was used to classify the samples in different classes as per their suitability for drinking purposes. It is observed that most of the samples fall in the water unsuitable for drinking purposes category and few samples are in the very poor water category.
      PubDate: 2021-09-16
      DOI: 10.1007/s41101-021-00116-x
       
  • The Harmful of the Hydro-Electric Dams Upstream of the Mekong River Effect
           on the Ecosystems and Livelihoods of People in Mekong Delta, Vietnam

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      Abstract: Abstract The development of hydro-electric projects of the upstream Mekong countries has been and will be inevitable and greatly impact on the downstream areas, in which the Mekong Delta is suffering a lot of losses, especially for Vietnam. The processes have been happening at the same time: the process of depleting water, for agriculture, for industry, for daily life, and people’s livelihoods. The processes, at the same time the effects that resonate with the process of climate change, cause great harm [1]. The drought has accelerated the acidification process, because the potential drought of acid sulfate soil (1,700,000 ha) will become intense, damaging the ecosystem and human livelihoods. The drought due to the construction of hydro-electric dams upstream (especially Lan Thuong River, China) makes the process of salinization with saline intrusion fierce (seawater 4 g/liter) [2]. Many, penetrating into the interior fields more than 100KM, the harm is extremely great. If they want to reduce the harm, the Mekong River Commission must ask the upstream countries to share it with the downstream.
      PubDate: 2021-09-14
      DOI: 10.1007/s41101-021-00112-1
       
 
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