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

WASTE MANAGEMENT (18 journals)

Showing 1 - 17 of 17 Journals sorted alphabetically
Advances in Recycling & Waste Management     Open Access   (Followers: 2)
Energy, Sustainability and Society     Open Access   (Followers: 15)
Exposure and Health     Hybrid Journal  
International Journal of Waste Resources     Open Access   (Followers: 5)
Journal of Hazardous, Toxic, and Radioactive Waste     Full-text available via subscription   (Followers: 6)
Journal of Material Cycles and Waste Management     Hybrid Journal   (Followers: 1)
Journal of Paper Conservation     Hybrid Journal   (Followers: 2)
Journal of Solid Waste Technology and Management     Full-text available via subscription   (Followers: 4)
Journal of Waste Management     Open Access   (Followers: 4)
Journal of Water and Wastewater / Ab va Fazilab     Open Access  
npj Clean Water     Open Access  
Open Waste Management Journal     Open Access   (Followers: 1)
Resources, Conservation & Recycling Advances     Open Access   (Followers: 1)
Waste Disposal & Sustainable Energy     Hybrid Journal  
Waste Management     Hybrid Journal   (Followers: 13)
Water-Energy Nexus     Open Access   (Followers: 2)
Worldwide Waste : Journal of Interdisciplinary Studies     Open Access   (Followers: 1)
Similar Journals
Journal Cover
Journal of Material Cycles and Waste Management
Journal Prestige (SJR): 0.491
Citation Impact (citeScore): 2
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1611-8227 - ISSN (Online) 1438-4957
Published by Springer-Verlag Homepage  [2469 journals]
  • Anticipation methods for management of ship oil spills on the sea

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      Abstract: Despite various kinds of binding regulations, marine pollution is still being found. To ensure that all such regulations have been complied with, it is necessary to have an inventory of all regulations related to marine waste management and field observations to ensure the implementation of these regulations is carried out properly. This study uses two data sources, which were secondary data and primary data conducted using survey methods at Sea and Coast Guard (PLP) Tanjung Uban and Port Authority and Main Harbormaster (KSOP) Tanjung Perak. Based on the results of the study, it shows that the quality of seawater in Batam has still many problems with marine pollution due to ship waste originating from oil spills. On the other hand, the reception facilities (RF) in Surabaya, which uses to collect ship waste disposal, are still not functioning optimally, so there should be further steps to improve the performance of the RF at the port. In addition, this study also produces suggestions or recommendations for optimization such as RF that must be available at all ports, have an oil spill detection. Applicable methods are drones, adaptive threshold methods, texture analysis on SAR data, or the Copernicus method.
      PubDate: 2022-05-19
       
  • Assessment of the current municipal solid waste management system in
           Tehran, Iran: challenges and opportunities for sustainable development

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      Abstract: With over 9 million population, challenges of waste management system (WMS) of Tehran can offer some lessons to other middle-income cities. Despite all the investments and trials, the recycling rate has been almost constant (about 18%) during the last decade. Short-term decisions, lack of true understanding of different parts of the system, and non-participation of other stakeholders are the most important weaknesses of governance of the WMS in Tehran, with inclusivity and financial sustainability that seem to be the most challenging aspects of Tehran’s WMS. Inadequate waste management framework is another weakness of the governance system, which is considered a national challenge. Although the disposal methods have been improved to some extent and the capacity of composting plants have been increased, the quality of 3Rs (reduce, reuse, and recycle) is still very poor. Controlled landfill with daily cover is the main method used for disposal of about 50% of generated wastes. Graphical abstract
      PubDate: 2022-05-18
       
  • Drivers and barriers to a circular economy adoption: a sector perspective
           on rare earth magnets

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      Abstract: The transition from the current linear to a circular economy (CE) is a great challenge, especially in industries where the theme was barely explored as the case of rare-earth magnets (REM) production. This paper aims to provide a sector perspective about drivers and barriers to the adoption of circular economy principles in the NdFeB industry in Brazil. Based on current literature and CE manuals, a set of theoretical drivers and barriers is introduced, comprising three drivers areas: regulatory, normative and cultural-cognitive, and five barriers areas: financial, market, organizational, operational, and technological and structural. The sector perspective was analyzed through a survey, in which Brazilian REM decision-makers opined on the importance of the presented theoretical drivers and barriers. An evaluation of the correlation coefficients was performed to allow the understanding on how one variable behaves in a scenario where another variable is being changed. The main findings indicate that “improvement in competitive advantage” is the most relevant driver and “long-term financial profitability” is the main barrier. Finally, the CE drivers and barriers systematization performed in this research may foster circularity practices in the REM industry and help to understand the pathways to conserve resources through CE adoption.
      PubDate: 2022-05-17
       
  • Influence of transportation and pumping on the properties of concrete with
           large amount of copper slag fine aggregate in actual construction of port
           and harbor structures

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      Abstract: Copper slag fine aggregate (CUS) is 30% denser than normal aggregate is an effective material for port and harbor structures demanding high-density concrete is suggested from authors’ research. This study investigated influence of transportation and pumping on the properties of concrete with a large amount of CUS for application in the actual construction of port and harbor structures. In particular, the following results were obtained in this study. In the case of W/C = 0.5 concrete and partial replacement of fine aggregate with CUS in concrete, workability was not changed by transportation and pumping—it was generally equivalent to that of concrete with normal fine aggregate. The mechanical properties and chloride resistivity of hardened concrete were also equivalent to those of the referenced concrete. In the case of W/C = 0.6 and absolute replacement of fine aggregate with CUS in concrete, the slump value increased owing to an increase in entrapped air with the time passage of transportation. The amount of bleeding also decreased after a certain time of transportation, similar to normal concrete. Therefore, a satisfactory compaction is necessary for the exhaust entrapped air to achieve the designed unit volume weight. Moreover, hardened concrete achieved equivalent mechanical properties and chloride resistivity to normal concrete.
      PubDate: 2022-05-16
       
  • pH buffering additives mitigate the inhibition of thermophilic dry methane
           fermentation

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      Abstract: This study describes the process of mitigation of fermentation inhibition using additives through a pH-buffering effect on thermophilic dry methane fermentation of municipal solid waste (MSW). Sodium hydrogen carbonate (SHC) and magnesium carbonate (MC) were selected as the experimental additives and were added to MSW, which comprised paper and food waste and had a wet mass ratio of 0.25, at a ratio of 0.1%, 1%, 3%, and 5% of the MSW wet mass. This experiment was conducted under thermophilic conditions at a temperature of 55 °C in 2-L separable flasks. The critical organic loading rate without the inhibition of rapid fermentation was 7.5 gVS/(kgsludge·d) in the control group, 6.5–8.5 gVS/(kgsludge·d) in the SHC group, and 8.0–9.5 gVS/(kgsludge·d) in the MC group. When the MC ratio was 3%, no significant fermentation inhibition was observed. The fermentation inhibition factors included decreased pH due to the accumulation of volatile fatty acids (VFAs) in the control and MC groups and levels of free ammonia in the SHC group. MC had little effect on the sludge pH even at higher ratios because of its low water solubility. In conclusion, MC mitigated fermentation inhibition when VFAs accumulated in the sludge.
      PubDate: 2022-05-14
       
  • Changing scenario of municipal solid waste management in Kanpur city,
           India

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      Abstract: Generation of municipal solid waste (MSW) depends upon lifestyle, urbanization and income level of population. Solid waste management is one of the essential parameters for the sustainable development of any city. Kanpur is one of the Indian cities with a population greater than 4 million having critical environmental and socio-economic issues of municipal solid waste management. Earlier some of the researchers highlighted the prevailing flaws and loopholes of the system, leading to poor controlled practices in the city till 2008. They also urged some remediates to the policymakers to fortify the system. In the present scenario, a daily waste generation amounts to be 1500 metric tonnes per day. This solid waste collection and transportation to the dumping site costs nearly 0.21 billion Rupees in a year. In the present paper, an attempt has been made to review the quality, physical and chemical composition, and policy of government authorities to manage the MSW year-wise year. The effect of open dumping of MSW on and nearby ground and surface water bodies in the study area is also highlighted. A comparative study between open dumping and engineered landfills is also made mainly with a focus on their suitability. The average net calorific value of the municipal solid is estimated as 2288 kcal/Kg which is significant to convert Waste to Energy (WtE). This work concludes with the possibilities of changing greenhouse gases to landfill gasses and their collection mechanism, electrical energy generation as per the composition and type of waste collected at the waste management plant. The suggestive measures equipped in this paper may lend a hand to the decision-makers/ municipal authorities to get an effective and environment-friendly MSW management system.
      PubDate: 2022-05-14
       
  • Recovery elemental sulfur from calcium sulfide prepared by red gypsum in
           sulfuric acid wastewater treatment

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      Abstract: Red gypsum comes from TiO2 production industry by sulfate method, which comes from the low acidic liquid stream treatment using lime or limestone. At present, RG main is treated by outdoor stacking, which induces additional costs and raises environmental concerns. It will be of interest to see the transformations of RG to obtain elemental sulfur and calcium cyclic utilization in the acidic liquid stream treatment. Calcium sulfide was prepared by calcining RG at 900 °C for 10 min and pure gypsum at 900 °C for 20 min, respectively. The decomposition of RG was easy than pure gypsum because of Fe2O3 catalysis. And srebrodolskite was observed in the samples from RG calcined at 800 to 1100 °C, respectively. Hydrogen sulfide was produced when CaS reacted with sulphuric acid wastewater and rod-like gypsum crystals were observed. And then, pellets of elemental sulfur, with 1.5–5 μm in diameter, were obtained by the H2S oxidation in Fe(III) chelate solution, which achieved elemental sulfur recovery and calcium cyclic utilization.
      PubDate: 2022-05-13
       
  • Sustainable and clean utilization of coal gangue: activation and
           preparation of silicon fertilizer

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      Abstract: Coal gangue, a by-product produced during the coal processing, has a serious impact on the environment. Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value. In this study, the formation mechanism and influencing factors of coal-gangue-based silicon fertilizer was studied using XRD and FT-IR measurement technologies. The results showed that the layered structure of coal gangue was severely damaged above 600 ℃, where the kaolin began to transform into metakaolin. When CaCO3 alone was added, CaCO3 mainly played a catalytic role, forming only a small amount of calcium silicate with available-Si content below 12.60%. When corn stalk powder alone was added, the oxides of the corn stalk ash participated in the chemical reaction involving coal gangue, forming nepheline (K(Na, K)3Al4Si4O16) and other silicates with available-Si content of 14.56%. When coal gangue, CaCO3, and corn stalk powder were mixed and calcined, the available-Si content was as high as 22.97% under the synergistic effect of CaCO3 and corn stalk powder; the concentration of toxic metals and ions was below 52.87 mg/kg. The prepared silicon fertilizer can reduce the pollution of coal gangue and meet the agricultural needs of China.
      PubDate: 2022-05-12
       
  • Simple dehydration technique using drainage string to treat drinking water
           sludge for utilization as geomaterial

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      Abstract: The utilization of drinking water sludge (DWS) as geomaterial is important to reduce its volume that needs to be disposed of and to increase environmental sustainability. In this regard, a simple dehydration technique using drainage strings was applied to DWS in laboratory and field conditions. From the laboratory test, it was confirmed that the sludge in initial water content of 570% was dewatered below the liquid limit of 300% for a week. From the field test, the raw sludge was dewatered, and it was found that the simple vertical drain method accelerates the dewatering rate of DWS smoothly compared to the control test. The cone index test was performed on the DWS mixed with sandy soil for utilization as geomaterial. It is clarified that the initial water content of the DWS should be reduced for decreasing the sand mixing fraction and improvement cost. The environmental effect on utilization of DWS was assessed based on CO2 emission in LCA. The result showed that the DWS by the simple vertical drain method and mixing sandy soil has the CO2 emission less than 1/5 of that of belt filter press with cement mixing.
      PubDate: 2022-05-11
       
  • Utilization of rice husk ash for the treatment of leachate generated from
           Perungudi semi-urban solid waste dumping site of Chennai city, Tamil Nadu,
           India

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      Abstract: Leachate from the secured landfill sites and open dumpsite seems to be threat to environment, which requires an immediate attention to investigate a suitable solution in handling the waste and its impact on disposal based on the hierarchy. A significant concentration of COD (1307–2166 mg/L) and ammoniacal nitrogen (NH3–N) (686–746 mg/L) was found to be high in the dumpsite when compared to other parameters (BOD and TSS) studied. A suitable solution identified for reducing the COD and NH3–N levels using rice husk ash (RHA) as adsorbent. Factors considered are pH, contact time, and adsorbent dosage with different values to find the optimum lowering of COD and NH3–N concentrations. Treatment adopted with optimal adsorbent dosage of 30 g, contact period as 60 min, and with pH 6 for NH3–N, and pH 7 for COD. Finally, COD and NH3–N removal efficiency varies between 15.8 and 26.6% and 9.4 and 26.6% with different adsorbent dosages. Similarly, COD and NH3–N removal effectiveness is 15.5–36.2% and 20.1–33.6% at different contact times. Typically, for various pH, COD and NH3–N reduction was 29.6–47.4% and 18.7–47.4%.
      PubDate: 2022-05-10
       
  • Pakistan’s plastic bag ban: an analysis of citizens’ support and ban
           effectiveness in Islamabad Capital Territory

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      Abstract: The excessive consumption of single-use plastic bags in recent years has fueled plastic pollution leading to considerable adverse consequences for human health and the environment. To control the high rates of plastic pollution and its marked effects in Pakistan’s capital, Islamabad, the government imposed a ban on single-use plastic bags in August 2019. Hence, to overcome plastic pollution and successfully implement bans in other parts of the country, it is critical to study this ban’s effectiveness and identify factors that contribute to its success. As research on this matter currently remains limited, present study attempts to understand the drivers for ban’s support and evaluate the role that awareness, education and the availability of alternatives play in increasing support for this ban. The survey results exhibited a positive relationship between the aforementioned variables and support for the plastic bag ban. Although plastic bag consumption fell for 77.5% of the sample after the ban, it failed to be entirely effective in eradicating plastic bag usage as bags were widely available in small shops. Respondents felt that increasing awareness would reduce resistance against the ban, and the government, non-government organizations, and the general public should all take part in conducting these awareness campaigns.
      PubDate: 2022-05-10
       
  • Quantification and composition of pharmaceutical waste in New Zealand

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      Abstract: This study aimed to quantify the amount of pharmaceutical waste produced in New Zealand, and determine the composition of pharmaceutical waste from community pharmacies in Auckland, New Zealand. Pharmaceutical waste collected in New Zealand is increasing, peaking at 542 tonne in 2019. Pharmaceutical waste collected from hospitals and pharmacies in Auckland increased by more than fourfold from 2016 to 2020. An audit of the types of pharmaceutical waste collected from community pharmacies revealed that the most common classes of drugs identified in this waste stream belonged to the nervous system, cardiovascular system and alimentary tract, and metabolism. Following examination of the contents of 12 pharmaceutical waste bins, 475 different pharmaceutical products were identified, highlighting the breadth of drugs in this waste stream. A range of dosage forms and hence materials were identified, which could present challenges for future waste treatment approaches. Hazardous drugs were identified including cytotoxic compounds, which should go into a separate waste stream for incineration. There is a need for similar data to be collected from multiple sites to fully appreciate the magnitude and composition of pharmaceutical waste. This will allow for the suitability of current practices for managing this hazardous waste stream to be evaluated.
      PubDate: 2022-05-10
       
  • Knowledge, behavior, and drivers of residents’ willingness to pay for a
           sustainable solid waste collection and management system in Mymensingh
           City, Bangladesh

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      Abstract: Excessive waste generation and ineffective waste management systems in developing cities have become a major challenge in achieving urban sustainability. As a developing city, Mymensingh City Corporation (MCC) is no exception. The demand for sustainable waste collection and management is increasing gradually. This study aimed to (i) document the existing solid waste collection and management system (SWCMS) of MCC and to (ii) explore the drivers and calculate the residents’ willingness to pay for a sustainable SWCMS in MCC. The study conducted several field surveys with a structured questionnaire for primary data collection. We have employed the payment card approach of the contingent valuation method to calculate the willingness to pay (WTP). We used the Pearson’s correlation model and the logistic regression model (considering WTP as a dependent variable) to evaluate the influences of different driving factors on WTP. Results show that the insufficient manpower, technological, and financial paucity of MCC authorities is responsible for poor SWCMS in Mymensingh. About 68.49% of people are not satisfied with the existing SWCMS. Approximately 85.42% of total respondents agreed to pay 283.38 Tk/month (USD 3.38 per month) for a sustainable SWCMS in MCC. Findings suggest that people’s income, education, and employment have a strong positive influence, and that age, household size, and satisfaction level have a negative influence on residents’ WTP. The study can help responsible authorities and policymakers develop and adopt efficient and optimal solid waste collection and management policies for immediate execution, focusing on future requirements.
      PubDate: 2022-05-10
       
  • The introduction of recycled-aggregate concrete specifications in Japan
           and the research into the freezing–thawing resistance of
           recycled-aggregate concrete

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      Abstract: In Japan, recycled concrete aggregate (RCA) and recycled-aggregate concrete (RAC) are standardized in the Japanese Industrial Standards (JIS) A 5021–5023. The differences between the specifications in JIS and those in foreign countries are explained. In Japan, the durability of RAC under severe conditions, particularly freezing and thawing with/without deicing salt is recently being studied to facilitate its use. In this paper, the test method for freezing and thawing durability of recycled concrete aggregate and the specification of precast concrete made with recycled aggregate, which can be used in freezing and thawing circumstance with deicing salt are described.
      PubDate: 2022-05-09
       
  • Study on cultivation of Trichoderma viride using spent mushroom substrate
           and control effect on soybean root rot

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      Abstract: The spent mushroom substrate (SMS) was used as a raw material to prepare T. viride to reduce the production cost of T. viride and promote the resource utilization of spent mushroom substrate. The optimal spore production of T. viride under conditions of different nitrogen sources, SMS content, inoculation amount of T. viride, and different concentrations of inorganic ions were studied, and the optimal culture conditions were optimized by orthogonal experiment. The optimal medium for cultivating T. viride with SMS was as follows: the inoculum of T. viride was 12 wt. %, the SMS content was 20 wt. %, the initial pH was 6, urea was 2 g/L, 9 mg/L Ca2+, 6 mg/L Mg2+, 15 mg/L Cu2+, and 30 mg/L Fe2+ were added, and the rest was for water. Finally, the spore production of T. viride was obtained by culturing with the SMS to be 13.25 × 108 cfu/mL. In addition, adding T. viride to the soil had a higher disease reduction rate of 42.58% for soybean root rot caused by Phytophthora sojae. Using SMS as a medium to cultivate T. viride is a simple process with high spore yield.
      PubDate: 2022-05-05
       
  • Material reuse and recycling in construction works in Japan

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      Abstract: The status of material reuse and recycling in Japan is reviewed with an emphasis on the efforts by the national government. First, the national policy, including the regular survey and action plan, is summarized. Second, the current status of the generation, treatment, and reuse/recycling of construction waste and by-products is provided. Third, efforts to solve three major challenges for material reuse and recycling are discussed. Fourth, the statuses and problems of each waste and by-product generated from construction works are described. Finally, the newest version of the “Material Reuse and Recycling Promotion Plan in Construction Works,” which was formulated in 2020, is introduced.
      PubDate: 2022-05-04
       
  • Application of waste aluminum cans based nano alumina as reinforcing
           filler in natural rubber composites

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      Abstract: The application of waste materials based fillers is unique way to achieve rubber composites, which reduces the amount of waste in the environment and the final production cost of the rubber products. In the present work, a simple and facile strategy was proposed to use waste aluminum cans based nano alumina (WACNA) as reinforcing filler for the development of natural rubber (NR) composites with balanced compact performances. The synthesized WACNA was characterized by X-ray diffraction (XRD) and Field emission scanning electron microscopy (FESEM) experiments. NR composite with 2 phr WACNA was able to achieve considerably higher torque difference, hardness and tensile strength than unfilled NR composite. Also, the addition of WACNA successfully enhances the thermal stability and thermal oxidative aging resistance of NR composites. It is expected that the findings will offer an effective way for manufacturing a new generation NR composites competent for different tyre and non-tyre applications in future.
      PubDate: 2022-05-04
       
  • Preparation and characterization of biochar from cement waste for removal
           of rhodamine B dye

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      Abstract: Abstract Cement waste (CW) is one of the main environmental problems in the cement industry due to the high amount that is used and its incorrect disposal. This makes it an environmental burden and management actions are required for this waste product. In this context, the present work aimed to evaluate the adsorption capacity of rhodamine dye using a biosorbent (activated carbon from cement waste—AC-CW) through the study of equilibrium (Langmuir, Freundlich, and Sips models) and kinetic (pseudo-first-order, second-order, and intraparticle diffusion models) adsorption. For the preparation of AC-CW, an activation/carbonization process was used, where ZnCl2 was used as the activating reagent at a proportion of 1:2 w/w, with a heating rate of 10 °C min−1 to 600 °C for 240 min. Samples were characterized by a scanning electron microscope with energy dispersion spectroscopy, Zero Charge Point (pHZCP), Fourier transform infrared spectroscopy (FTIR), N2 porosimetry (BET/BJH methods), and zeta potential. Adsorption was adequate using 1.0 g L–1 AC-CW, and the process was most efficient at pH ≈ 4.3 for RhB dye adsorption. From the kinetic adsorption viewpoint, the data were satisfactorily represented by the pseudo-first-order model. The Sips model was suitable to represent the adsorption equilibrium of the RhB dye. The maximum adsorption capacity was determined to be 531.836 mg g–1. Thus, AC-CW was an efficient adsorbent material able to uptake dye from aqueous solutions.
      PubDate: 2022-05-03
       
  • Fabrication and characterization of lightweight aggregate prepared from
           steel mill sludge in one step

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      Abstract: The qualified green lightweight aggregate (LWA) was successfully prepared from steel mill sludge (SMS) and fly ash (FAS) in one step using the cost-effective sintering method. The effects of the ratio of FAS and SMS, sintering temperature, and sintering time on the performance of LWA were studied. The results show that the optimal LWA has bulk density of 721 kg m−3, compressive strength of 14.0 MPa, and water absorption of 12.6% under the follow optimized conditions: FAS and SMS mixed at a ratio of 8:2 at the sintering temperature of 1150 °C for 25 min. The mechanisms of mineralogical phases and microstructures formation were proposed. The microstructure of qualified LWA was characterized by a dense surface and a porous structure inside. The presence of mullite and anorthite phase can improve the strength of aggregate.
      PubDate: 2022-05-01
       
  • Correction to: Management of food waste in restaurants by way of circular
           practices

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      PubDate: 2022-04-25
       
 
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