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

POLLUTION (31 journals)

Showing 1 - 27 of 27 Journals sorted alphabetically
Aerosol Science and Engineering     Hybrid Journal  
Aerosol Science and Technology     Hybrid Journal   (Followers: 13)
Archives of Environmental Protection     Open Access   (Followers: 3)
Atmospheric Pollution Research     Hybrid Journal   (Followers: 2)
Ciencias Marinas     Open Access   (Followers: 3)
Current Pollution Reports     Hybrid Journal  
Emerging Contaminants     Open Access   (Followers: 1)
Energy and Emission Control Technologies     Open Access   (Followers: 3)
Environmental Chemistry and Ecotoxicology     Open Access  
Environmental Pollutants and Bioavailability     Open Access  
Exposure and Health     Hybrid Journal  
Greenhouse Gases : Science and Technology     Hybrid Journal   (Followers: 4)
Hidrobiológica     Open Access  
Journal of Air Pollution and Health (رتبه علمی- پژوهشی)     Open Access  
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 4)
Journal of Hazardous, Toxic, and Radioactive Waste     Full-text available via subscription   (Followers: 6)
Journal of Limnology     Open Access   (Followers: 6)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Journal of the Air & Waste Management Association     Hybrid Journal   (Followers: 4)
Jurnal Pengendalian Pencemaran Lingkungan     Open Access  
Latin American Journal of Aquatic Research     Open Access  
Microplastics and Nanoplastics     Open Access   (Followers: 1)
Open Journal of Air Pollution     Open Access   (Followers: 4)
Pollution     Open Access  
Revista Internacional de Contaminación Ambiental     Open Access  
Water, Air, & Soil Pollution : Focus     Hybrid Journal   (Followers: 7)
Water, Air, & Soil Pollution     Open Access   (Followers: 21)
Similar Journals
Journal Cover
Current Pollution Reports
Number of Followers: 0  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Online) 2198-6592
Published by Springer-Verlag Homepage  [2469 journals]
  • A Review on Desulfurization Technologies of Blast Furnace Gases

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      Abstract: Abstract The blast furnace gas, a low-calorific value fuel, is worthy of recycling. However, the sulfuric contents in blast furnace gases would cause pipeline corrosion and air pollution that are adverse to reutilization of blast furnace gases. Therefore, desulfurization technologies of blast furnace gas are necessary, which have been recently attracting much attention. This article clarifies main sources and forms of sulfur in blast furnace gases. Then, COS/H2S removal methods that are commonly used are introduced. In fact, blast furnace gases usually exist in low-temperature and low-pressure conditions, whose major components are N2/CO/CO2/H2 and minor components are sulfide/chloride. When blast furnace gases are used as a fuel, the sulfuric component will be converted into SO2 that causes severe air pollution to atmospheric environments. However, according to recent findings, once sulfides are removed ahead of the utilization process of blast furnace gases, other air-polluting components (e.g., hydrogen chloride) could be also removed via synergistic effects. In light of these characteristics, this article discusses the feasibility of various desulfurization methods suitable for blast furnace gases with the aim to provide useful information for the development of blast furnace gas desulfurization technologies.
      PubDate: 2022-03-29
       
  • Advances in Membrane Bioreactor: High Performance and Antifouling
           Configurations

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      Abstract: Purpose of Review This paper reviews recent advances in a membrane bioreactor (MBR) and focuses on the features and performance of MBR configurations. Special attention is given to MBR configurations developed for improving pollutant removal and fouling control. Recent Findings The first development discussed in this review is related to pollutant removal. Modified MBR configuration can enhance pollutant removals, such as those observed in baffled, osmotic, aerobic granular sludge, and electric field-assisted MBR. In addition, fouling is still the major problem in MBR applications. Fouling affects membrane performance stability as well as operational and capital costs. Several new MBR configurations have been developed to address fouling issues. By using dynamic membrane and free-moving particles, these new configurations make MBR operation more stable with fewer cleaning operations. In addition, lower cleaning frequency will decrease operational expenditure and capital investment. Summary Due to their unique features, newly developed MBR configurations are proved to display high pollutant removal in wastewater treatment. Meanwhile, MBR with dynamic membranes and moving particles can decrease membrane fouling due to mechanically induced shear with lower energy consumption than shear by conventional aeration.
      PubDate: 2022-03-14
       
  • Roles of Atmospheric Aerosols in Extreme Meteorological Events: a
           Systematic Review

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      Abstract: Purpose of Review Atmospheric aerosol from both natural and anthropogenic activities has long been acknowledged as one of the important factors influencing regional and global climate change. Many regions around the globe experienced high aerosol loadings because of intensive emissions, yet the roles of atmospheric aerosols in extreme meteorological and air pollution events have not been well demonstrated due mainly to the complexity of atmospheric physical and chemical interaction at mesoscale and even microscale. Here, we present a comprehensive review of current understanding on the role of atmospheric aerosols in the development and evolution of extreme meteorological events, including monsoon circulation, heat waves, extreme rainfall, tornadoes, and severe air pollution. Recent Findings Aerosols could participate in the development of meteorological systems through direct and indirect effects. Large-scale precipitation from shallow stratiform clouds was found to be suppressed by aerosols, while invigoration effects contribute to deep convection and even catastrophic floods in local areas. The occurrence of high-impact weather such as tornadoes and tropical cyclone is also related to aerosol concentration and distribution. Moreover, a positive feedback between aerosols and boundary layer meteorology is proposed as an important factor conducive to heavy haze pollution over urban areas. Summary The work underscores the great importance of aerosols’ meteorological feedback in extreme weather events. Integrated observations and seamless coupling of meteorology and atmospheric chemistry in models are highlighted for future studies to fill the knowledge gap in current research.
      PubDate: 2022-03-11
       
  • Recent Advances on Modelling the Toxicity of Environmental Pollutants for
           Risk Assessment: from Single Pollutants to Mixtures

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      Abstract: Purpose of Review Unabated environmental pollution has become a serious concern of this planet in recent times. The living environmental compartments including human beings are always in the exposure of multiple chemicals, and there are chances of the synergistic effect of a compound in presence of others. Therefore, for a better risk assessment of environmental pollutants, mixture toxicity assessment is very important. The regulatory agencies are now more focused on the use of alternative new approach methodologies for chemical toxicity assessment. This review summarizes the use of alternative modelling approaches of ecotoxicity assessment for single chemical pollutants to mixtures and the recent advancements in this domain. Recent Findings Regulatory agencies are paying more attention to the risk assessment of individual pollutants though the presence of chemical mixtures, and their harmful effects on human health and the environment are evident. The toxicity assessments of individual pollutants are mostly shifted from experimentations to in silico alternatives. Quantitative structure–activity relationships (QSARs) and read-across are mostly used in recent times for ecotoxicity assessments. The use of QSARs, machine learning, and fuzzy set theory-based integrated concentration addition-independent action models in the mixture’s risk assessment have been reported in this review. Summary Our final remark of this review is that the mixture’s toxicity assessment is a key approach for the better risk assessment of environmental pollutants. The advanced modelling strategies are effective, easy to use, and fast, but there is still no approach available that has been accepted universally for the mixtures' risk assessment to date. Graphical abstract
      PubDate: 2022-03-10
       
  • Recent Advances in Technologies for Removal of Microcystins in Water: a
           Review

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      Abstract: Purpose of Review Microcystins (MCs) are refractory cyclic heptapeptides which mainly due to the release of bloom-forming cyanobacteria and is a problem of emerging environmental concern. The presence of MCs in water poses a severe challenge to the health of human beings. This review is aimed to summarize the recent progress in removing MCs, and to serve the development of theories and technologies for eliminating MCs in the future. Recent Findings The traditional methods such as membrane filtration, chemical reagent, and biological enzyme suffer from high cost or second pollution in the process of removing MCs. The magnetic adsorption nanomaterial is regarded as an efficient treatment technology for the removal of MCs due to its easy separation and low cost. The carbon-based photocatalysis possesses a broader prospect for application in eliminating MCs, which could degrade MCs with high efficiency and lower energy consumption. Summary This article reviews the physical, biological, and chemical methods of eliminating MCs. The mechanism of various methods for the removal of MCs was proposed. Additionally, the magnetic adsorption nanomaterial and carbon-based photocatalysis for removing MCs are also discussed. Finally, based on the drawbacks of current research, prospects for future research were discussed. This review is expected to provide a reference for future environmental pollutants remediation particularly within the domain of eliminating MCs.
      PubDate: 2022-03-04
      DOI: 10.1007/s40726-022-00215-w
       
  • Contaminant Removal and Resource Recovery in Bioelectrochemical Wastewater
           Treatment

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      Abstract: Abstract Bioelectrochemical system (BES) is an emerging technology for wastewater treatment. The urgent requirement for dealing with water shortage, wastewater treatment and reuse, energy generation, and resources recovery has promoted intensive research in BES during the last decade. This review summarizes the latest typical BES configurations based on specific functions, including microbial fuel cells (MFC), microbial electrolysis cells (MEC), microbial electrosynthesis systems (MSS), microbial desalination cells (MDC), microbial recycling cells (MRC), microbial solar cells (MSC), and microbial electrochemical snorkel (MES). The removal of contaminants, particularly emerging organic, non-metallic, metallic, and metalloid contaminants, and the recovery of resources in the form of bioenergy, biofuel, nutrients, metals, and metalloids in wastewater treatment using BES technology have been reviewed in this work. Limitations of BES technology in terms of reactor performance, scale-up, and construction costs for real-world wastewater treatment applications are discussed and future research directions needed for the successful deployment of BES technology are proposed.
      PubDate: 2022-03-03
      DOI: 10.1007/s40726-022-00218-7
       
  • Microalgae Biofilm and Bacteria Symbiosis in Nutrient Removal and Carbon
           Fixation from Wastewater: a Review

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      Abstract: Purpose of Review The utilization of attached microalgae and bacteria to degrade wastewater has become a more promising treatment process to replace traditional methods. That is because the algae-bacteria biofilm can not only remove nutrients from the water but also achieve the effect of carbon fixation. Besides, the attached microalgae are easy to harvest and can be used for the processing of high value-added products. This paper reviews the knowledge of microalgae biofilm combined with bacteria to treat wastewater and provides insights into the bioremediation of the ecosystem by algae and bacteria. Recent Findings Due to the photosynthesis of algae and the oxidative decomposition of bacteria, the symbiotic system of algae biofilm and bacteria from wastewater has significant advantages in harvesting and degradation. To further improve wastewater utilization efficiency and carbon fixation, it is necessary to understand the algae-bacteria symbiotic system of mechanism and influencing factors of nitrogen and phosphorus removal and carbon fixation. The photobioreactor for microalgae cultivation is gradually developed and optimized, laying a solid foundation for actual production and application. Summary The algae-bacteria symbiotic system is more effective compared to individual microalgae treatment since the algae-bacteria biofilm has better removal efficiency and adsorption capacity as well as easy to harvest. This article introduces the mechanism and influencing factors of the algae-bacteria symbiotic system to remove nutrients and organic pollutants from water in detail. Furthermore, the research progress of photobioreactors is summarized as well. Finally, the application prospect of microalgae biofilm in wastewater treatment was prospected.
      PubDate: 2022-02-14
      DOI: 10.1007/s40726-022-00214-x
       
  • Prospects of Multiproduct Algal Biorefineries Involving Cascading
           Processing of the Biomass Employing a Zero-Waste Approach

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      Abstract: Purpose of Review Increasing environmental problems demand mitigation solutions to fulfill sustainability development goals. Microalgae offer possibility of valorizing the CO2 and wastewater-derived nutrients to produce numerous industrial bioproducts. However, developing self-sustained systems for the complete valorization of algal biomass into valuable biobased products is challenging. Currently, sustainable algal processing faces several challenges including costly cultivation, difficult harvesting, and incomplete biomass valorization. This review assessed the prospects of emerging technologies focusing on the integrated approaches for sustainable algal biorefinery development ensuring the sustainability of environment-water-energy nexus. Recent Findings Evaluation of various upstream, midstream, and downstream processing technologies provided insights into the processing issues. In upstream processing, high-rate algal ponds and integrated carbon capture and transformation technologies offer waste valorization into eco-friendly algal production. A brief comparison of harvesting technologies mainly focusing on chemical and biological flocculation has shown that integrating physical and biological harvesting methods are more reliable and efficient. Overview of downstream processing has indicated that biomass processing in a cascading manner offers the complete biomass valorization in a zero-waste paradigm. Summary Assessment of cultivation-to-production technologies highlighted that “zero-waste” algal biorefinery has the potential to become reality by integrating the industry 4.0 and phenomics approaches with eco-friendly cultivation, harvesting, and processing technologies. Hybrid methods based on integrated cascading processing offer complete biomass valorization in a circular bioeconomy paradigm. Graphical
      PubDate: 2022-02-12
      DOI: 10.1007/s40726-022-00213-y
       
  • Recent Advances in the Theory and Application of Nanofiltration: a Review

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      Abstract: Abstract Water is the material basis for living organisms and one of the primary resources to maintain the sustainable development of the earth’s ecological environment. As a water purification method, nanofiltration (NF) separation technology has been widely considered by researchers in recent years. However, most of the studies on NF in the literature focus on membrane modification, and there are only a few reviews available. In this paper, the latest research progress of NF is reviewed, and the processes of NF membrane preparation using phase inversion, layer by layer, and interfacial polymerization are described. Polymer materials used for NF membrane preparation are reviewed and the main types of nanofillers to generate thin film nanocomposite membranes, including metal organic frameworks, boron nitride, Ti3C2TX, graphene oxide, SiO2, and iron oxide are discussed. Membrane fouling is inevitable during NF operation and this paper analyzes the mechanisms of fouling and summarizes key pretreatment and cleaning methods required to remediate the long-term effects of cake layer formation. The steric hindrance effect, Donnan effect, and dielectric exclusion are analyzed, and some common characterization methods are summarized. The practical applications of NF are briefly introduced including groundwater, pharmaceutical wastewater, and textile wastewater treatment. Finally, the shortcomings and prospects of the existing research progress are put forward.
      PubDate: 2022-01-20
      DOI: 10.1007/s40726-021-00208-1
       
  • Metabolic Cascade for Remediation of Plastic Waste: a Case Study on
           Microplastic Degradation

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      Abstract: Microplastics have emerged as an ubiquitous pollutant with severe environmental and human health hazards. Over the decades encountering these pollutants, microorganisms have evolved with the tool(s) to degrade different classes of plastic polymers. Several enzymes including depolymerases and lipases have been studied for the reduction of plastic toxicity. Since the degradation of plastic is a long process, thus, meta “omics” approaches have been employed to identify the active microbiota and microbial dynamics involved in the mitigation of microplastic-contaminated sites. Further, protein engineering approaches have opened new avenues to tackle this alarming situation. Increasing plastic contamination is serving as a breeding ground and carrier for spread of other persistent chlorinated pollutant. This review for the first time summarized a comprehensive report on microplastic sources, toxicity, and bio-based mitigation approaches. It covers deeper understanding about multi-omic approaches in microplastic research and engineering technologies in microplastic degradation. The guidelines and regulation to tackle the increasing pollution have been discussed. Knowledge gaps and opportunities have been comprehensively compiled that would aid the state-of-the-art information in the available literature for the researchers to further address this issue. Graphical abstract
      PubDate: 2022-01-07
      DOI: 10.1007/s40726-021-00210-7
       
  • Operationalizing the Exposome Using Passive Silicone Samplers

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      Abstract: Abstract The exposome, which is defined as the cumulative effect of environmental exposures and corresponding biological responses, aims to provide a comprehensive measure for evaluating non-genetic causes of disease. Operationalization of the exposome for environmental health and precision medicine has been limited by the lack of a universal approach for characterizing complex exposures, particularly as they vary temporally and geographically. To overcome these challenges, passive sampling devices (PSDs) provide a key measurement strategy for deep exposome phenotyping, which aims to provide comprehensive chemical assessment using untargeted high-resolution mass spectrometry for exposome-wide association studies. To highlight the advantages of silicone PSDs, we review their use in population studies and evaluate the broad range of applications and chemical classes characterized using these samplers. We assess key aspects of incorporating PSDs within observational studies, including the need to preclean samplers prior to use to remove impurities that interfere with compound detection, analytical considerations, and cost. We close with strategies on how to incorporate measures of the external exposome using PSDs, and their advantages for reducing variability in exposure measures and providing a more thorough accounting of the exposome. Continued development and application of silicone PSDs will facilitate greater understanding of how environmental exposures drive disease risk, while providing a feasible strategy for incorporating untargeted, high-resolution characterization of the external exposome in human studies.
      PubDate: 2022-01-04
      DOI: 10.1007/s40726-021-00211-6
       
  • Impacts of Personalized Sensor Feedback Regarding Exposure to
           Environmental Stressors

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      Abstract: Abstract Feedback on personal exposure to air pollution, noise or extreme temperatures through wearable sensors or sensors installed at home or in the workplace can offer information that might motivate behaviours to mitigate exposure. As personal measurement devices are becoming increasingly accessible, it is important to evaluate the effects of such sensors on human perception and behaviour. We conducted a systematic literature research and identified 33 studies, analysing the effects of personal feedback on air pollution, noise and temperatures. Feedback was given through reports including different forms of visualization, in-person or over the telephone, or directly on the sensor or through a phone app. The exposure feedback led to behaviour changes particularly for noise and temperature feedback while findings on behaviour adaptation to avoid air pollution were mixed. Most studies reported increased awareness and knowledge from receiving exposure feedback. Many participants in studies on air pollution reported low levels of self-efficacy regarding exposure mitigation. For a better understanding of the effects of personal exposure feedback, more studies are required, particularly providing feedback from wearable sensors measuring outdoor air pollution, noise and temperature.
      PubDate: 2021-12-01
      DOI: 10.1007/s40726-021-00209-0
       
  • Soil–Plant Transfer of Pharmaceuticals and Personal Care Products

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      Abstract: Purpose of Review Land application of organic wastes such as sewage effluent, biosolids, and animal wastes can introduce pharmaceuticals and personal care products (PPCPs) into soils. Food plants grown in soils receiving organic wastes may take up PPCP contaminants and accumulate them in the edible tissues. The purpose of this review is to summarize the latest findings on root uptake of PPCPs and their transfer in soil–plant systems, aiming to identify potential risks associated with organic waste application in crop production systems. Recent Findings The processes and mechanisms of root uptake of PPCPs and their subsequent transfer in plants are intensively discussed in the present review. Soil properties, PPCP physicochemical properties, and plant species are demonstrated as the most important factors influencing the uptake and transfer of PPCPs in soil–plant systems. The metabolism processes and mechanisms of PPCPs in plant tissues are further elucidated with exemplification of commonly used PPCPs. The estimated daily intake is employed to assess the potential risks of consuming PPCP-containing foods based on their accumulation in edible plant tissues. Two innovative treatment techniques are proposed as cost-effective practices to reduce PPCP transfer into plants from organic wastes. Summary Accumulation of PPCPs in edible plant tissues is governed by the combined processes of their root uptake, translocation, and metabolism in plants. This paper reviews the latest research advances in understanding the transfer of PPCPs in soil–plant systems, proposes mitigation practices to minimize PPCP entry into food chains, and identifies research challenges.
      PubDate: 2021-11-13
      DOI: 10.1007/s40726-021-00207-2
       
  • Unprecedented Impacts of Aviation Emissions on Global Environmental and
           Climate Change Scenario

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      Abstract: There has been a continuously growing trend in international commercial air traffic, with the exception of COVID-19 crises; however, after the recovery, the trend is expected to even sharpen. The consequences of released emissions and by-products in the environment range from human health hazards, low air quality and global warming. This study is aimed to investigate the role of aviation emissions in global warming. For this purpose, data on different variables including global air traffic and growth rate, air traffic in different continents, total global CO2 emissions of different airlines, direct and indirect emissions, air traffic in various UK airports and fuel-efficient aircraft was collected from various sources like EU member states, Statista, Eurostat, IATA, CAA and EUROCONTROL. The results indicated that in 2019, commercial airlines carried over 4.5 × 109 passengers on scheduled flights. However, due to the COVID-19 pandemic in 2020, the global number of passengers was reduced to 1.8 × 109, representing around a 60% reduction in air traffic. Germany was the largest contributor to greenhouse gas (GHG) from the EU, releasing 927 kt of emissions in 3 years. In the UK, Heathrow airport had the highest number of passengers in 2019 with over 80 million, and the study of monthly aircraft movement revealed that Heathrow Airport also had the highest number of EU and International flights, while Edinburgh had the domestic flights in 2018. These research findings could be beneficial for airlines, policymakers and governments targeting the reduction of aircraft emissions. Graphical abstract
      PubDate: 2021-11-10
      DOI: 10.1007/s40726-021-00206-3
       
  • Microbial Biotransformation and Biomineralization of Organic-Rich Waste

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      Abstract: Purpose of Review Improper discharge of industrial effluents would lead to direct contamination of our water, air, and soil systems. Without proper treatment, both these inorganic and organic-matter-containing waste would pose harmful effects towards aquatic organisms, overall water quality, reduction in soil health, and increase in greenhouse gasses from anaerobic microbial degradation activities. Recent Findings Current treatment technologies involve the use of combined chemical, biological, and physical approaches, which has been proven very effective. Another useful alternative is to utilize the high organic content present in the waste as substrate for the metabolism of microbes as catalyst in industrial processes including water treatment as well as production of useful microbial secondary metabolites such as pigments. Summary This review highlights some example for the microbial biotransformation and biomineralization of organic-rich industrial discharges. This is important based on its potential to be applied as useful alternative techniques to dispose huge volumes of industrial waste as well as reducing high cost of sustaining biological-based industrial processes that would require substantial investment notably for the microbial growth medium. Nevertheless, clear insight into the engineering aspects of such processes and sufficient knowledge on its feasibility to function properly at pilot-scale level are of paramount importance prior to any commercialization attempts.
      PubDate: 2021-11-06
      DOI: 10.1007/s40726-021-00205-4
       
  • High-Performance Ultrafiltration Membrane: Recent Progress and Its
           Application for Wastewater Treatment

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      Abstract: Purpose of Review This review presents an overview of high-performance ultrafiltration (UF) membranes, including fouling resistant, micellar-enhanced, tight, adsorptive, and catalytic UF. The review discusses recent advances in the development of these membranes, focusing on their preparation method, performances, and applications. Then, the review concludes with a discussion of the challenges and future outlooks of these UF membranes in wastewater treatment. Recent Findings Recently, the development of UF membranes has resulted in membranes with high performances in wastewater treatment. For instance, fouling-resistant membranes synthesized through surface modification show significant improvement in terms of fouling reduction and flux recovery. In addition, coupling with complexation reaction, tightening membrane pore structure, endowing membrane with adsorption ability, and functionalizing UF membrane with catalytic properties, greatly improve the performance of UF in removing pollutants. Highly selective UF membranes can achieve remarkable various pollutant removals (e.g., organic compounds and heavy metals) from wastewater. Summary UF membrane has been widely applied in wastewater treatment due to its low-pressure operation, relatively low energy consumption, high product quality, and simple operation. Significant efforts have been dedicated to improve UF membrane performance. Fouling resistant and highly selective UF membranes have been developed successfully, which showed remarkable performance in various pollutant removals. These high-performance UF membranes provide the possibility of process simplification in wastewater treatment since they can remove a more wide range of pollutant types, and thus post-treatment step may be reduced.
      PubDate: 2021-10-13
      DOI: 10.1007/s40726-021-00204-5
       
  • Evaluating the Impacts of Ground-Level O3 on Crops in China

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      Abstract: China is facing increasing ground-level ozone (O3) along with the reduction of particulate matter since the implementation of the Air Pollution Prevention and Control Action Plan (APPCAP) in 2013. High-level O3 poses adverse effects to ecosystems by inhibiting the growth of crops and other plants in addition to human health effects. The capture of atmospheric carbon dioxide by plants is also weakened due to O3 stress effect. In recent years, studies have been conducted to evaluate the potential risk of O3 in agricultural production in China with different methods and focuses and the results are not consistent for comparison and policy-making. In this paper, we first briefly reviewed the levels of O3 pollution in China in recent years, and the evaluation indicators for analyzing O3 impacts on crops as well as their applicability. Then, methods for determining O3 flux and the progress in dry deposition of O3 in farmlands were presented. We also introduced some recent advances in evaluating losses of crop yield caused by O3 exposure. Finally, in view of the shortcomings of current research, prospects for future research were suggested. Graphical
      PubDate: 2021-10-11
      DOI: 10.1007/s40726-021-00201-8
       
  • A Review of Immobilisation-Based Remediation of Per- and Poly-Fluoroalkyl
           Substances (PFAS) in Soils

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      Abstract: Purpose of Review This review provides an overview of the latest developments in immobilisation of per- and poly-fluoroalkyl substances (PFAS) for soil remediation. It examines the efficacy of a range of amendments, including those with binding agents, along with a discussion of immobilisation mechanisms and post-immobilisation assessment needs. Recent Findings Researchers have recently applied a variety of soil amendments to soil for PFAS immobilisation. Efficacy of these has varied widely, both between amendment and soil types and for individual PFAS molecules present in contaminated soils. Activated carbon based amendments, including composite amendments exhibit the highest efficacies of the examined studies. Summary Immobilisation of PFAS is complex, with efficacy of immobilisation varying with soil properties including pH, clay and organic matter content, amendment properties, and molecular properties of the individual PFAS. Optimal remediation strategies need to be adjusted accordingly to site specific soil properties and contamination profiles. Additionally, bioavailability testing needs to supplement standard leaching approaches to determine effectiveness of PFAS soil immobilisation strategies.
      PubDate: 2021-09-28
      DOI: 10.1007/s40726-021-00199-z
       
  • Advances in Green Technologies for the Removal of Effluent Organic Matter
           from the Urban Wastewater

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      Abstract: Purpose of Review Effluent organic matter (EfOM) is a blend of organic matter, microbial constituents, biological metabolites, and synthetic chemicals which is originated mainly due to anthropogenic activities and is a matter of emerging environmental concern. The presence of EfOM poses a major challenge in the wastewater treatment processes. This review is aimed to assess the recent progress in developing innovative green approaches for the biotransformation of EfOM into ecofriendly products which is vital to attain the “zero-waste” paradigm to achieve wastewater reclamation and environmental sustainability under the umbrella of circular bioeconomy. Recent Findings Characteristics of EfOM and its impact on wastewater treatment processes have been evaluated. The potential and shortcomings of the traditional, advanced, and biological approaches for the EfOM removal have been described. Recent strategies which are based on the combination of two or more of these technologies (hybrid systems) have been discussed to address the challenges/shortcomings of the standalone technologies and to improve the process efficiency. Microalgae and cyanobacteria-based removal of EfOM along with its subsequent utilization as a soil amender is proposed as a novel trend in the future. Summary Assessment of the previously employed technologies provided an insight into their working mechanisms which have suggested several improvements in the processes. Besides, hybrid systems could be an ecofriendly removal of EfOM via biosorption. Graphical abstract
      PubDate: 2021-09-06
      DOI: 10.1007/s40726-021-00203-6
       
  • Overview and Research Progresses in Chemical Speciation and In Vitro
           Bioaccessibility Analyses of Airborne Particulate Trace Metals

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      Abstract: Purpose of review As a priority environmental pollutant, toxic trace metals enriched in atmospheric particulate matters (PMs) pose potential threats to both ecological system and human health. To sufficiently clarify the relationships between airborne trace metals and environmental impacts, considering the chemical speciation and bioaccessibility of trace metals in PMs becomes necessary. Recent findings In this mini-review, such recent research progresses were summarized, including the concepts and developed methods for metal fractionation and bioaccessibility evaluation, especially the human body (lung)–related bioaccessible fractions of inhalable particle metals. Chemical extraction methods for different fractions and a compilation of in vitro bioaccessibility approaches for trace metals in PMs were presented. Summary For future risk assessments and toxicity tests of atmospheric particulate metals, incorporating the bioaccessibility supported by standardized speciation methods are directions.
      PubDate: 2021-09-04
      DOI: 10.1007/s40726-021-00200-9
       
 
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