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Article
Agricultural Engineering
Wenqian Li et al.
Summary: This study investigated the impact and risk of antibiotic resistance genes (ARGs) and their potential hosts during thermophilic anaerobic digestion (TAD) of waste activated sludge enhanced by micron-scale zero valent iron (mZVI). The addition of 100 mg mZVI/g total solids resulted in a decrease of 7.3% and 4.8% in ARGs' abundance and diversity, respectively. The abundance of ARGs with health risk and diversity of human pathogenic bacteria (HPB) were also reduced by 8.3% and 3.6%, respectively. Furthermore, mZVI reduced the abundance of potential pathogenic supercarriers for ARGs by 2.5%, 5.0%, and 6.1% with increasing dosage. Overall, mZVI, especially at 100 mg/g TS, can mitigate the risk of antibiotic resistance in TAD.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Seyed Mohammad Mirsoleimani Azizi et al.
BIORESOURCE TECHNOLOGY
(2023)
Review
Environmental Sciences
Dong Ding et al.
Summary: Antibiotic resistance poses a significant threat to human health, and reducing the spread and burden of antibiotic resistance requires implementing control strategies.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Nervana Haffiez et al.
Summary: As global concern for plastic pollution rises, research into environmentally friendly alternatives such as bioplastics is being conducted. This study compared the impact of two bioplastics, PLA and PHB, on the proliferation of antibiotic resistance genes and mobile genetic elements during anaerobic digestion. The results showed that bioplastics can be degraded to some extent, with PHB 500 reactor showing the highest methane yield and biodegradation efficiency. However, PLA reactors had higher abundances of ARGs and MGEs, indicating a potential risk for spreading antibiotic resistance.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Borui Zhang et al.
Summary: Microplastic pollution poses a threat to water systems worldwide. Wastewater treatment plants, as important components of city sewage treatment, act as barriers for intercepting microplastics and also serve as emission sources. This study investigated the abundance, size, shape, and polymer type of microplastics at different stages of sewage treatment. The results showed that the removal rates of different technologies varied, with the anaerobic anoxic oxic technology having the highest removal rate. Most microplastics were found in the sludge, and the concentration in dehydrated sludge was also measured. The study highlights the importance of optimizing the process design of wastewater treatment plants to effectively prevent and control microplastic pollution. Further research is recommended to develop a scientific foundation for managing microplastic pollution in urban areas.
ENVIRONMENTAL POLLUTION
(2023)
Review
Environmental Sciences
M. K. Manu et al.
Summary: Anaerobic digestion (AD) is a promising technology for diverting organic waste and producing clean energy. However, it is susceptible to external factors such as microplastic and chemical pollutants. This review assesses the impact of microplastic pollution on the AD process, including the pathways of microplastic entry, the effects of different types and concentrations of microplastics, and the risks to microbial communities and antibiotic resistance genes.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Xinying Wang et al.
Summary: Large amounts of microplastics accumulate in sludge anaerobic digestion system, leading to aging and chemicals leaching. Different aged microplastics and leachates were found to have inhibitory effects on methane production, with PET leachate causing the strongest inhibition. The inhibition is mainly caused by the leachates inducing oxidative stress and damaging microbial cells, reducing microbial activity.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Xuran Liu et al.
Summary: The presence of PVC microplastics at environmentally relevant levels does not affect methane production but reduces the toxicity of cadmium. When the concentration of PVC microplastics reaches 30 particles/g TS, methane production recovers to 89.7% in the presence of 5 mg Cd/g TS compared to the control. The adsorption of Cd by PVC microplastics is higher than that of sludge-substrate, reducing the bioavailability of Cd during anaerobic digestion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
Jiaqi Wang et al.
Summary: Sewage sludge serves as a significant reservoir for antibiotics, antibiotic resistance genes (ARGs), and antibiotic resistant bacteria (ARB) in wastewater treatment plants (WWTPs), posing potential threats to human health and environmental safety. This review provides a comprehensive summary of the fate and controlling efficiency of antibiotics, ARGs, and ARB in sludge during various treatment processes, including disintegration, anaerobic digestion, aerobic composting, drying, pyrolysis, constructed wetland, and land application. Additionally, the analysis and characterization methods of antibiotics, ARGs, and ARB in complex sludge are reviewed, and quantitative risk assessment approaches for land application are discussed. These findings contribute to optimizing sludge treatment and disposal processes, ensuring environmental risks control of antibiotics, ARGs, and ARB in sludge. Furthermore, the study proposes future research directions, such as the assessment of antibiotic resistance risk in sludge-amended soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Ruirui Pang et al.
Summary: This study firstly reveals the antagonistic effect of nano-CuO and MPs on environmental process, and these findings will benefit the systematic evaluation of MPs environmental behavior and co-occurrent risk with other pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jing Ma et al.
Summary: This study found that microplastic particle sizes have different impacts on soil chemical properties and microbial communities, especially in purple soil. Smaller polyethylene microplastics negatively affected the contents of dissolved organic matter, extracellular polymeric substances, and certain enzyme activities, but increased the cation exchange capacity and promoted the growth of polyethylene-degrading bacteria. Additionally, smaller microplastics showed lower toxicity to microbial communities and increased the stability of the network.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Yinping Xiang et al.
Summary: This study revealed the combined effects of polyamide and ofloxacin on anaerobic digestion. Partial adsorption of ofloxacin by polyamide effectively mitigated its inhibitory effect at low concentrations. However, high concentrations of ofloxacin stimulated the release of humic acid, reducing methane production and altering the predominant methanogenesis pathway.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Badreddine Barhoumi et al.
Summary: In this study, the leaching behaviour of organic additives, such as brominated flame retardants, from extruded polystyrene microplastics (XPS-MPs) into seawater was investigated. The study confirmed a rapid release of various organic additives from the XPS-MPs, followed by a slower release over time. Environmental factors, such as dissolved organic matter concentrations and seawater temperature, were found to enhance the leaching rate of additives, while pH and salinity had minor effects or negative impacts.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Amsalu Tolessa
Summary: Using crop statistics and publicly accessible data, this study estimated the bioenergy potential of crop biomass residues in Ethiopia. The country generates a significant amount of recoverable crop residue, with cereals and fruit crops being the highest contributors. The bioenergy potential varies by region, with Oromia having the highest potential. The study emphasizes the importance of decentralized energy planning, research and development, and stakeholder participation for Ethiopia's sustainable bioenergy sector.
Article
Environmental Sciences
A. A. Franco et al.
Summary: This research investigated the presence of microplastics in the sludge of seven wastewater treatment plants in southern Spain. The results showed high heterogeneity in terms of microplastic abundance, shape, size, and polymer type among the different treatment plants. The most common shape of microplastics was fibers, with the smallest fraction being the most abundant. Acrylate, PE, EAA, and PP were the most commonly found polymers. The presence of microplastics in sludge varied across different sampling points, indicating the role of wastewater treatment plants in accumulating microplastics and potentially impacting agriculture.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Zdenek Kosnar et al.
Summary: The concentration of PAHs, PCBs, and OCPs in sewage sludge from 40 wastewater treatment plants was investigated. The relationship between the pollutant contents, WWTP parameters, and sludge stabilisation was evaluated. The study found correlations among the individual tested pollutants in the sludge, as well as a linear correlation between WWTP size and pollutant contents in sludge.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Lara Dronjak et al.
Summary: Microplastic (MP) pollution is a global problem, and wastewater treatment plants (WWTPs) are a major pathway for MPs to enter the natural environment. This study investigated the concentration, morphology, and composition of MPs in different treatment units of a WWTP. The results showed that WWTP can effectively remove MPs, with a removal efficiency exceeding 96%. The most common morphology of MPs is fibers, followed by fragments and films. Various types of plastics were detected in different units of the WWTP. The estimated number of MPs avoided from being released into the environment through direct water discharge was 9.1 x 1012 MP/year.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Zhiying Guo et al.
Summary: In this study, the addition of modified corn-core powder and sludge-based biochar improved the dewaterability of sludge. Different organics released during pretreatment had varying effects on heavy metal fractions, changing the toxicity and bioavailability of the treated sludge. The use of MCCP/SBB reduced the biological availability and ecological toxicity of heavy metals in the sludge.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Matthew Cole et al.
Summary: Microplastics are a widespread environmental pollutant. Curbing microplastic pollution requires various interventions such as source reduction and curative measures. A nature-based solution involving mussels as microplastic biofilters is proposed, which can effectively remove waterborne microplastics and repurpose them into biodeposits. Experimental results and modeling suggest that this approach has the potential to significantly reduce microplastic contamination.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Marine & Freshwater Biology
Yan-Bo Ma et al.
Summary: Environmental micro(nano)plastics pose a significant global pollution problem due to their widespread use and distribution. They have been found in various environmental media, especially marine systems, and their accumulation in organisms or humans can lead to negative impacts on metabolism, immune function, and health. Additionally, micro(nano)plastics can adsorb other pollutants, exacerbating the adverse effects on animal and human health. Further research is needed to fully understand the risks and impacts of micro(nano)plastics, and efforts should be made to reduce plastic waste and minimize their negative impact.
AQUATIC TOXICOLOGY
(2023)
Article
Environmental Sciences
Mikael Kedzierski et al.
Summary: The objective of this study is to estimate the total mass of microplastics in global agricultural soils. Data from 442 sampling sites were used to calculate that there could be 1.5 to 6.6 Mt of microplastics in soils worldwide, which is one to two orders of magnitude higher than the estimated ocean surface microplastic stock. However, accurate calculation of these stocks is limited by various constraints. This study should be considered as an initial step in addressing this question.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Fengrun Wu et al.
Summary: This study investigated the presence of microplastic contamination in Chiromantes dehaani crabs in the intertidal zone of Chongming Island, Yangtze Estuary, and explored its possible relationship with microplastic composition in sediments. The results showed that there were 592 microplastic particles in the crab tissues, with an average abundance of 1.90 items/g. Microplastic contamination varied significantly among different sampling sites, organs, and size groups of the crabs. The microplastics were mainly rayon fibers with small sizes, consistent with the sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biotechnology & Applied Microbiology
Pan Wang et al.
Summary: This research investigated the impact of PET microplastics on the anaerobic co-digestion of sewage sludge and food waste. Results showed that the CH4 production decreased when exposed to PET microplastics, due to the leaching of toxic chemicals. Microbial community analysis revealed a decrease in key hydrolysis and acidification bacteria abundances. Structural equation model analysis indicated that DBP and DIBP were the key factors reducing methane production, with a stronger impact in the smaller particle size group.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
V. Fernández-Fernández et al.
Article
Environmental Sciences
Wei -Hong Lin et al.
Summary: Biodegradable plastics are being widely used as an alternative to conventional plastics in order to minimize the negative environmental impacts of plastic packaging. However, before they decompose, these biodegradable plastics could be a threat to terrestrial and aquatic organisms by acting as carriers of contaminants in the food chain. In this study, the heavy metal adsorption capacities of both conventional plastic bags made of polyethylene and biodegradable plastic bags made of polylactic acid were examined. The results showed that the heavy metal adsorption capacities of the biodegradable plastic bags were significantly higher than those of the conventional plastic bags.
Article
Environmental Sciences
Bei Wang et al.
Summary: This study introduced biological hydrolysis and ethylenediaminetetraacetic acid treatment for the isolation of microplastics from environmental samples, and demonstrated their effectiveness in removing organic and inorganic contents. The results can facilitate the establishment of a standardized procedure for microplastic isolation from wastewater and biosolid samples.
Article
Ishmail Sheriff et al.
Environmental Advances
(2023)
Article
Engineering, Environmental
Agata Egea-Corbacho et al.
Summary: Microplastics are a major threat to the environment and aquatic life, and one of the main sources of microplastics in water and land environments is wastewater treatment plants. This study aimed to investigate the presence and removal of microplastics in wastewater and sludge from different types of treatment plants. The results showed high removal efficiency in the treatment process, with a decrease in microplastic concentration from influent to effluent. The most common forms of microplastics detected were fragments and fibers, and several types of polymers were identified.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Feng Wei et al.
Summary: The study investigated the abundance and characteristics of microplastics in the sludge of two WWTPs in Chengdu. Microplastics were mainly particles, debris, and fibers, with green and translucent colors being predominant, and the prevalent types identified were polyethylene, polypropylene, and polystyrene.
Article
Environmental Sciences
Fang Yuan et al.
Summary: This study investigated microplastics in sewage sludges at five WWTPs in Nanjing City, analyzing their abundance, morphology, and chemical composition, as well as discussing influencing factors and proposing technological suggestions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agricultural Engineering
Lili Li et al.
Summary: The addition of powdered activated carbon (PAC) to high-solids anaerobic digestion (HS-AD) significantly enhances methane production and process stability. The activated carbon enriches potential direct interspecies electron transfer (DIET) partners and contributes to methane production. This study is of great importance for understanding the application of activated carbon in the treatment of food waste.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Riaz Ahmed et al.
Summary: This review provides an overview of the sources, occurrence, and potential adverse effects of microplastics on human health. It identifies promising technologies for microplastics removal, including physical, chemical, and biological approaches, and analyzes their advantages and limitations. The review concludes with a discussion of current challenges and future research priorities in addressing microplastics contamination.
Article
Geosciences, Multidisciplinary
Xinran Qiu et al.
Summary: Microplastics are widely present in the environment, and their interactions with microorganisms have complex implications. Understanding the factors influencing microbial colonization on MPs is crucial for assessing environmental impacts.
Article
Environmental Sciences
Daisy Harley-Nyang et al.
Summary: The study identified the presence of microplastics in sludge and biosolids produced by a wastewater treatment plant, indicating they could be significant sources of terrestrial microplastic pollution. Application of these waste products as fertilizers to agricultural land could potentially release large amounts of microplastics into the environment, posing risks of contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Lu Zhang et al.
Summary: This study found that exposure to microplastic fibers during sludge anaerobic digestion can increase the quantity and abundance of extracellular antibiotic resistance genes, further accelerating their spread in the environment.
Article
Environmental Sciences
Xiaoying Zheng et al.
Summary: Microplastics, specifically polyethylene microplastics (PE MPs), have been found to significantly impact the aerobic granular sludge (AGS) in wastewater treatment plants. The presence of PE MPs affects the particle structure, settling properties, particle size distribution, and extracellular polymeric substance characteristics of the AGS. Exposure to PE MPs also leads to an increase in reactive oxygen species and lactate dehydrogenase, resulting in disruption of cellular structure. Additionally, the activities of enzymes related to denitrification and phosphorus removal decrease.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
G. Cazaudehore et al.
Summary: This study evaluated the influence of inoculum-substrate ratio (ISR) on the methane production of biodegradable plastics and found that an ISR between 2.85 and 4 is recommended for reproducible degradation kinetics and optimal methane production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Mengyu Tan et al.
Summary: The enormous production, use, and disposal of plastic goods pose substantial challenges to environmental sustainability. Microplastics are found in organic solid wastes and their treated products, with potentially high ecological risks. The abundance of microplastics in organic solid wastes is found to be in the order of sludge > food waste > livestock manure.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Siebe Lievens et al.
Summary: Plastics are widely produced and used globally, resulting in the presence of plastic particles in the environment and food. Plastic particles can also be found in energy-rich waste biomass from the food industry, supermarkets, and restaurants. These waste streams can be used for biogas production or as feed for insects, which convert it into valuable biomass. However, the presence of plastic particles in these applications poses a threat to the environment, as well as human and animal health. Therefore, there is a need to determine the (micro)plastic content to assess the potential danger. A closed-vessel microwave-assisted acid digestion method was developed to accurately determine the meso- and microplastic content in food matrices. The method was tested on different plastics mixed with a food matrix, resulting in high plastic recovery and minimal changes to the intrinsic characteristics of the plastics.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Bei Lu et al.
Summary: This study assessed the fate of polylactic acid microplastics (PMP) during co-digestion with kitchen waste (KW). The results showed that anaerobic digestion caused aging and fragmentation of PMP, with the highest degree of aging and fragmentation observed under thermophilic conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Chao Jiang et al.
Summary: The study found that the combination of hydrothermal pretreatment and anaerobic digestion can increase the biogas production of waste activated sludge. However, the hydrothermal pretreatment changes the physicochemical properties and adsorption performances of microplastics, which inhibits methane production.
Article
Engineering, Environmental
Mei Tang et al.
Summary: The stress responses of sulfate-reducing bacteria (SRB) sludge to polyethylene (PE) microplastic exposure were studied. Low levels of PE microplastics had limited effect on SRB consortia, whereas higher levels imposed physiological stresses. However, the overall reactor performance was less affected. Additionally, SRB consortia promoted the production of extracellular polymeric substances in response to higher concentrations of PE microplastics, providing protective effects.
Article
Engineering, Environmental
Xiao Chen et al.
Summary: This study investigated the integrated impacts of microplastics and chlorine on disinfection kinetics, microbial growth, and microbial community formation in drinking water. The findings suggest that microplastics worsen water quality when chlorine concentration is low, and both microplastics and chlorine shape the microbial communities in water samples and biofilm samples. Microbial abundance and organic pollutants can be effectively controlled when chlorine concentration is over 1 mg/L.
Article
Engineering, Environmental
Song Wang et al.
Summary: This study reveals the inhibitory mechanism of microplastics on wastewater methane recovery process, including effects on methane production, changes in anaerobic granular sludge morphology, alterations in microbial community structure, and reduction in key methane enzymes abundance.
Article
Energy & Fuels
Yan Ru Fang et al.
Summary: This study estimates the bioenergy production potential and CO2 emission reduction benefits of utilizing crop straw for bioenergy production until 2030, providing valuable insights for policy formulation and bioenergy plant planning.
Article
Environmental Sciences
Jianhong Shi et al.
Summary: The presence of polyethylene microplastics (PE MPs) has adverse effects on the anaerobic digestion process of waste activated sludge (WAS) and the removal of antibiotic resistance genes (ARGs). The hydrolysis of soluble polysaccharides and proteins increased, leading to the accumulation of volatile fatty acids. Methane production decreased, and certain bacterial populations were enriched while others were reduced. Moreover, the presence of PE MPs significantly enriched ARGs and promoted the co-occurrence of ARGs with specific bacterial taxa.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Ye Li et al.
Summary: The presence of polystyrene microplastics in food waste has been found to have varying effects on the anaerobic digestion performance. Smaller-sized microplastics have a stronger inhibitory effect, prolong the decomposition process of organic matter, and suppress the activity of methane-producing microorganisms and key enzymes.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Prosper Naah Angnunavuri et al.
Summary: High-Density Polyethylene (HDPE)-packaged water is a popular choice for urban potable water across Africa. However, the sources and fate of priority chemical contaminants have not been adequately reported. The present study seeks to determine the effect of storage and labelling on the levels of phthalates in HDPE packaged water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
M. Dilara Hatinoglu et al.
Summary: The presence of microplastics (MPs) in sludge treatment systems, particularly anaerobic digesters, can have an impact on their performance. However, pretreating the sludge with alkaline solution can increase methane yield and mitigate the negative effects of MPs. Furthermore, the surface morphology, crystallinity, and carbonyl index of PET microplastics change significantly after pretreatment and digestion, which may affect their fate and environmental impact.
Article
Energy & Fuels
Yan Ru Fang et al.
Summary: The research estimates the quantity of straw until 2030 and highlights the potential of producing various types of bioenergy from different types of straw to reduce CO2 emissions. The results of the study provide valuable insights for policymakers in formulating policies related to straw utilization and assists bioenergy plants in selecting the optimal production configurations.
Review
Biotechnology & Applied Microbiology
Hedda Inderthal et al.
Summary: Enzymatic plastic conversion is seen as a potential alternative to traditional plastic waste management, with a focus on biodegradable plastics such as polyesters. However, there are still challenges in applying enzymatic degradation to other commercial plastics. Addressing extensive knowledge gaps and understanding the crucial impact of physicochemical factors on reactions in less well-studied plastic types are essential for expanding the application of enzymatic degradation.
TRENDS IN BIOTECHNOLOGY
(2021)
Article
Environmental Sciences
Yue Feng et al.
Summary: This study explored the inhibition mechanism of anaerobic sludge by using Pd-doped polystyrene nanoplastics (Pd-PS) and found that Pd-PS inhibited methane production, interacted with proteins in EPS, and inhibited methane-related genes without affecting growth.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Zhan Yang et al.
Summary: The study found that a significant amount of microplastics exist in bottom ash generated from incineration, with each metric ton of waste producing a considerable number of microplastic particles. Polypropylene and polystyrene were identified as the predominant types, and microplastics exhibited various forms with abundance influenced by factors such as waste separation, GDP per capita, and furnace types.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Green & Sustainable Science & Technology
Benyamin Khoshnevisan et al.
Summary: The increasing demand for animal protein products has led to challenges in managing livestock manure, with debates ongoing on treatment technologies. Most technologies focus on the solid fraction of manure, leaving the liquid fraction as a potential environmental threat. Anaerobic digestion and bio-oil production are promising solutions, but face obstacles such as high investment costs, operational difficulties, and the need for further research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Environmental Sciences
Eric A. Ben-David et al.
Summary: This study evaluated the efficiency of a municipal WWTP in removing microplastics using different sampling and detection methods. Results showed that the majority of microplastics were removed by the secondary treatment stage, and seasonal variations can affect the concentration of microplastics in effluents.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Joan Dalmau-Soler et al.
Summary: This study examined the presence of microplastics in the Llobregat river basin in Catalonia, Spain, and their removal efficiency in the drinking water treatment plant (DWTP). Sand filtration was identified as the key stage in microplastic removal, with ultrafiltration/reverse osmosis proving more effective for removal than ozonation/carbon filtration. Preliminary migration tests were also conducted to identify potential sources of microplastics in each treatment step.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Yingshuang Zhang et al.
Summary: Froth flotation is a promising method for removing microplastics, especially those with higher density, larger size, and lower concentration. Ionic species like K+, Na+, and Ca2+ do not affect the flotation recovery of microplastics, while certain concentrations of humic acid and aluminum ions can efficiently remove them.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Ronghua Qin et al.
Summary: The study revealed that different aromatic carboxylic acids have impacts on the performance and microbial communities of anaerobic granular sludge, with benzoic acid showing the highest efficiency in COD removal. The addition of aromatic carboxylic acids led to an increase in functional groups in the anaerobic granular sludge and affected the decay of LB-EPS.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Zhuoying Wu et al.
Summary: Intermittent microaerobic digestion of lignocellulosic biomass at a high organic loading rate showed higher digestibility and better stability compared to strict anaerobic conditions. The study identified efficient cellulolytic facultative bacterium and methanogens as key players in maintaining the delicate balance under microaeration. Additionally, cytochrome bd oxidase and antioxidant enzymes were found to potentially improve digestibility and stability in intermittent microaerobic digestion.
Article
Engineering, Environmental
Baowei Zhang et al.
Summary: The appropriate amount of cationic polyacrylamide (cPAM) was found to mitigate the toxicity of zinc oxide nanoparticles (ZnO NPs) on waste activated sludge (WAS) anaerobic digestion, ultimately promoting subsequent bio-utilization.
Article
Environmental Sciences
Ruth Haupt et al.
Summary: This study critically discusses the use of outdated default values in the current environmental risk assessment of veterinary medicinal products in the EU, especially in the context of changing animal husbandry practices. The lack of valid data and potential impacts on predicted environmental concentrations highlight the need for an update in the ERA of VMPs to reflect changes in animal husbandry.
ENVIRONMENTAL SCIENCES EUROPE
(2021)
Article
Environmental Sciences
Xiang Tang et al.
Summary: The research demonstrates that high levels of BBP can cause anaerobic digestion upset, leading to deferred cell lysis and rupture, as well as affecting hydrolysis, acetogenesis, and methanogenesis processes. Long-term exposure to BBP can alter the microbial structure in anaerobic digesters and the abundance of functional microorganisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Agricultural Engineering
Seyed Mohammad Mirsoleimani Azizi et al.
Summary: This review comprehensively examines the mechanisms underlying the impacts of (nano)microplastics on anaerobic digestion, including their inhibition/enhancement effects on the process and potential impacts on biochemical pathways, key enzymes, functional genes, and microbial communities. It also highlights the potential environmental risks of biosolids contaminated with (nano)microplastics and outlines knowledge gaps and future research needs for more standardized studies.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Hui Sun et al.
Summary: The Chinese government aims to achieve carbon neutrality by 2060, with technologies like anaerobic digestion of crop residues to recover biomethane playing a key role. The potential contribution of crop residues to energy production and reducing GHG emissions following anaerobic digestion is significant but has been scarcely evaluated. More research and development, along with governmental support policies, are needed to fully utilize the potential of biomethane production from crop residues in China.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Environmental Sciences
Yongli Zhang et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Fangni Du et al.
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Environmental Sciences
Ting Zhao et al.
MARINE POLLUTION BULLETIN
(2020)
Article
Agricultural Engineering
Jiaying Ma et al.
BIORESOURCE TECHNOLOGY
(2020)
Review
Environmental Sciences
Daniel Sol et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
G. Lytras et al.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Engineering, Environmental
Wei Wei et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Environmental Sciences
Baiwen Ma et al.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2019)
Review
Engineering, Environmental
Jing Sun et al.
Article
Engineering, Environmental
Wei Wei et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Geochemistry & Geophysics
Smart C. Obiora et al.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2019)
Article
Engineering, Environmental
Reina M. Blair et al.
Article
Environmental Sciences
J. P. G. L. Frias et al.
MARINE POLLUTION BULLETIN
(2019)
Review
Agricultural Engineering
Khai Lun Ong et al.
BIORESOURCE TECHNOLOGY
(2018)
Article
Environmental Sciences
Ester M. Eckert et al.
ENVIRONMENTAL POLLUTION
(2018)
Article
Green & Sustainable Science & Technology
Filomena Ardolino et al.
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Environmental Sciences
Esther A. Gies et al.
MARINE POLLUTION BULLETIN
(2018)
Article
Engineering, Environmental
Marta Simon et al.
Article
Engineering, Environmental
Dongbo Wang et al.
Article
Multidisciplinary Sciences
Amanda L. Dawson et al.
NATURE COMMUNICATIONS
(2018)
Article
Engineering, Environmental
Adrian Frank Herbort et al.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2018)
Article
Engineering, Environmental
Guangying Hou et al.
JOURNAL OF HAZARDOUS MATERIALS
(2017)
Article
Environmental Sciences
Wen Fang et al.
Article
Environmental Sciences
Scott Lambert et al.
Article
Engineering, Environmental
Chang-Bum Jeong et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2016)
Article
Biotechnology & Applied Microbiology
Ki Young Park et al.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2016)
Review
Green & Sustainable Science & Technology
Nadia Mirabella et al.
JOURNAL OF CLEANER PRODUCTION
(2014)
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