Pub Date : 2025-06-18DOI: 10.1080/10643389.2025.2463335
Wenjie Yu, Faqian Sun, Chaofeng Shen, Xiaomei Su
The viable but non-culturable (VBNC) state is a common phenomenon through which microorganisms respond to stress to ensure long-term survival. To date, more than 100 microbial species have been reported to enter the VBNC state under various stressful conditions. In the VBNC state, cells undergo morphological, physiological, and genetic changes, with the mechanisms of VBNC state formation differing among microbial species and stressful conditions. Although the VBNC state has been extensively investigated in the fields of medicine and food safety, research on the VBNC state of pollutant-degrading microorganisms remains limited. Mounting evidence has confirmed the existence of the VBNC state in microorganisms capable of degrading polychlorinated biphenyls (PCBs) and phenol. The resuscitation of VBNC microorganisms, which represent a significant portion of microbial resources, is crucial for the effective microbial remediation of polluted environments. This review provides a comprehensive summary of the formation, characteristics, and mechanisms of the VBNC state in microorganisms. It also outlines various methods for resuscitating VBNC bacteria, with a specific focus on resuscitation-promoting factors (Rpfs). Importantly, from the perspective of environmental bioremediation, this review highlights the potential of VBNC state bacteria, the application of Rpfs in resuscitating VBNC bacteria in polluted environments, and the feasibility of utilizing resuscitated strains as inoculants for environmental bioremediation.
{"title":"Resuscitation of viable but nonculturable microorganisms: A highly promising strategy for enhanced bioremediation","authors":"Wenjie Yu, Faqian Sun, Chaofeng Shen, Xiaomei Su","doi":"10.1080/10643389.2025.2463335","DOIUrl":"https://doi.org/10.1080/10643389.2025.2463335","url":null,"abstract":"The viable but non-culturable (VBNC) state is a common phenomenon through which microorganisms respond to stress to ensure long-term survival. To date, more than 100 microbial species have been reported to enter the VBNC state under various stressful conditions. In the VBNC state, cells undergo morphological, physiological, and genetic changes, with the mechanisms of VBNC state formation differing among microbial species and stressful conditions. Although the VBNC state has been extensively investigated in the fields of medicine and food safety, research on the VBNC state of pollutant-degrading microorganisms remains limited. Mounting evidence has confirmed the existence of the VBNC state in microorganisms capable of degrading polychlorinated biphenyls (PCBs) and phenol. The resuscitation of VBNC microorganisms, which represent a significant portion of microbial resources, is crucial for the effective microbial remediation of polluted environments. This review provides a comprehensive summary of the formation, characteristics, and mechanisms of the VBNC state in microorganisms. It also outlines various methods for resuscitating VBNC bacteria, with a specific focus on resuscitation-promoting factors (Rpfs). Importantly, from the perspective of environmental bioremediation, this review highlights the potential of VBNC state bacteria, the application of Rpfs in resuscitating VBNC bacteria in polluted environments, and the feasibility of utilizing resuscitated strains as inoculants for environmental bioremediation.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"95 1","pages":"1-24"},"PeriodicalIF":12.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143910012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biochar, a carbonaceous solid produced by thermochemical conversion of biomass, is commonly used for soil improvement. In comparison with the biochars derived from wood chips and grass, the biochar produced from nutrient-enriched feedstocks (e.g., sewage sludge, animal manure, microalgae, and wetland plants) contained higher contents of nutrients and showed greater potential for soil application. To achieve the efficient utilization of nutrients in biochar, the behavior of nitrogen (N), phosphorus (P), and potassium (K) during pyrolysis of nutrient-enriched feedstock should be clarified. This study provides a systematic review of the migration and transformation of N, P, and K during the production of biochar derived from nutrient-enriched biomass, with special emphasis on the effects of nutrient-enriched biochar on soil available nutrients. Perspectives and challenges for agricultural applications of biochar are discussed as well. The migration and transformation of N, P, and K are affected by the pyrolysis temperature and the properties of the feedstock during the pyrolysis process. The application of nutrient-enriched biochar could provide additional nutrients, change the physicochemical properties of soil, and modify microbial community to elevate the content of soil available nutrients. Therefore, the production of nutrient-enriched biochar from N/P/K-enriched biomass wastes for soil applications is a promising scheme for sustainable agriculture.
{"title":"A review on the production of nutrient-enriched biochar: Insights from the evolution of nitrogen, phosphorus, and potassium","authors":"Xiaoqiang Cui, Xufeng Li, Junxia Wang, Xutong Wang, Fan Yu, Gaixiu Yang, Shiwei Xu, Zhanjun Cheng, Qianying Yang, Beibei Yan, Guanyi Chen","doi":"10.1080/10643389.2025.2457991","DOIUrl":"https://doi.org/10.1080/10643389.2025.2457991","url":null,"abstract":"Biochar, a carbonaceous solid produced by thermochemical conversion of biomass, is commonly used for soil improvement. In comparison with the biochars derived from wood chips and grass, the biochar produced from nutrient-enriched feedstocks (e.g., sewage sludge, animal manure, microalgae, and wetland plants) contained higher contents of nutrients and showed greater potential for soil application. To achieve the efficient utilization of nutrients in biochar, the behavior of nitrogen (N), phosphorus (P), and potassium (K) during pyrolysis of nutrient-enriched feedstock should be clarified. This study provides a systematic review of the migration and transformation of N, P, and K during the production of biochar derived from nutrient-enriched biomass, with special emphasis on the effects of nutrient-enriched biochar on soil available nutrients. Perspectives and challenges for agricultural applications of biochar are discussed as well. The migration and transformation of N, P, and K are affected by the pyrolysis temperature and the properties of the feedstock during the pyrolysis process. The application of nutrient-enriched biochar could provide additional nutrients, change the physicochemical properties of soil, and modify microbial community to elevate the content of soil available nutrients. Therefore, the production of nutrient-enriched biochar from N/P/K-enriched biomass wastes for soil applications is a promising scheme for sustainable agriculture.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"83 1","pages":"1-19"},"PeriodicalIF":12.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-18DOI: 10.1080/10643389.2025.2469860
Meiying Lv, Min Du, Xingchuan Zhao, Yongxu Du
Corrosion is a pervasive issue that poses a significant risk across various industries, causing economic losses and safety hazards. Traditional corrosion control technologies may have some limitations in application, such as high cost, cumbersome construction, and even environmental pollution. Biomineralization, as an emerging anti-corrosion strategy, is effective and eco-friendly, demonstrating in situ self-healing activity. This review provides a comprehensive overview of recent advances in utilizing this novel strategy for corrosion inhibition and the mechanisms involved. Furthermore, the different types and functional properties of typical biominerals are discussed, as well as the potential applications of mineralized bacteria and species interactions. Lastly, this review outlines current challenges in this field, such as species selection, microscale manipulation, large-scale applications and biosafety, and proposes future directions for further research, offering valuable insights into the evolving landscape of biomineralization technology in corrosion protection.
{"title":"Fundamental understanding of microbiologically influenced corrosion inhibition via biomineralization: A critical review","authors":"Meiying Lv, Min Du, Xingchuan Zhao, Yongxu Du","doi":"10.1080/10643389.2025.2469860","DOIUrl":"https://doi.org/10.1080/10643389.2025.2469860","url":null,"abstract":"Corrosion is a pervasive issue that poses a significant risk across various industries, causing economic losses and safety hazards. Traditional corrosion control technologies may have some limitations in application, such as high cost, cumbersome construction, and even environmental pollution. Biomineralization, as an emerging anti-corrosion strategy, is effective and eco-friendly, demonstrating <i>in situ</i> self-healing activity. This review provides a comprehensive overview of recent advances in utilizing this novel strategy for corrosion inhibition and the mechanisms involved. Furthermore, the different types and functional properties of typical biominerals are discussed, as well as the potential applications of mineralized bacteria and species interactions. Lastly, this review outlines current challenges in this field, such as species selection, microscale manipulation, large-scale applications and biosafety, and proposes future directions for further research, offering valuable insights into the evolving landscape of biomineralization technology in corrosion protection.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"1 1","pages":"1-23"},"PeriodicalIF":12.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143910013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-18DOI: 10.1080/10643389.2025.2457980
Rouf Ahmad Dar, To-Hung Tsui, Le Zhang, Adam Smoliński, Vanja Jurišić, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Anaerobic digestion (AD) has received continuous attention over the past few decades as an efficient biological process for converting waste materials into biogas, biohydrogen, and volatile fatty acids (VFAs). Given the intricacy of the AD microbiome, it is important to explore the microorganisms carrying out the AD process, especially the viruses, which have received insufficient attention thus far. With the advent of novel molecular techniques and meta-omics approaches, it has become more accessible to ascertain the details of viral communities involved in AD systems. This is important as it could help us in monitoring and regulating the factors for improving AD process stability to achieve a selective bio-product like methane. This review highlights the distinctive viral communities in AD systems and their possible interactions with other microbial communities. It also highlights how these viral communities, particularly phages, are shaping the AD microbial communities. Furthermore, the role of auxiliary metabolic genes in AD viruses is discussed. Finally, the review provides insights into the effect of viruses on methanogenesis and highlights the challenges and future perspectives of studying viruses in AD.
{"title":"Viruses in anaerobic digestion systems: Diversity, role and future prospects","authors":"Rouf Ahmad Dar, To-Hung Tsui, Le Zhang, Adam Smoliński, Vanja Jurišić, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu","doi":"10.1080/10643389.2025.2457980","DOIUrl":"https://doi.org/10.1080/10643389.2025.2457980","url":null,"abstract":"Anaerobic digestion (AD) has received continuous attention over the past few decades as an efficient biological process for converting waste materials into biogas, biohydrogen, and volatile fatty acids (VFAs). Given the intricacy of the AD microbiome, it is important to explore the microorganisms carrying out the AD process, especially the viruses, which have received insufficient attention thus far. With the advent of novel molecular techniques and meta-omics approaches, it has become more accessible to ascertain the details of viral communities involved in AD systems. This is important as it could help us in monitoring and regulating the factors for improving AD process stability to achieve a selective bio-product like methane. This review highlights the distinctive viral communities in AD systems and their possible interactions with other microbial communities. It also highlights how these viral communities, particularly phages, are shaping the AD microbial communities. Furthermore, the role of auxiliary metabolic genes in AD viruses is discussed. Finally, the review provides insights into the effect of viruses on methanogenesis and highlights the challenges and future perspectives of studying viruses in AD.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"43 1","pages":"1-24"},"PeriodicalIF":12.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143910011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-03DOI: 10.1080/10643389.2025.2511673
Changtao Chen, Xuetong Yang, Chuanlong Ma, Junfeng Niu, Kristof Demeestere, Anton Nikiforov, Stijn W. H. Van Hulle
Nonthermal plasma wastewater treatment technology, which combines the advantages of advanced oxidation processes (AOPs) and advanced reduction processes (ARPs), has attracted increasing attention for remediating micropollutant-contaminated wastewater over the past few decades. This review article compiles and organizes peer-reviewed scientific publications from the last several years on the application of nonthermal plasma technologies for (waste)water treatment. Special focus is put on an in-depth discussion of (i) the processes of oxidative and reductive species generated by discharge plasma, (ii) the role of reactive species in various micropollutants degradation, and (iii) the possibilities to improve the degradation of micropollutants by scale up the technology and combining plasma with other methods, including catalysis. The analysis reveals that enhancing the utilization of reactive species can be achieved through two main approaches: (i) enhancing the mass transfer of reactive species, and (ii) improving the generation of reactive species with strong redox potential (such as •OH and eaq–). The maximum utilization of reactive species can reduce the energy consumption of nonthermal plasma technology and promote its industrial application. This review offers a comprehensive exploration of the generation, contribution and utilization of reactive species in plasma technology for micropollutant degradation, addressing gaps in existing literature by focusing on the scalability of nonthermal plasma in industrial applications.
{"title":"Reactive species in nonthermal plasma-based advanced oxidation and reduction processes for micropollutants degradation: Generation, contribution and utilization","authors":"Changtao Chen, Xuetong Yang, Chuanlong Ma, Junfeng Niu, Kristof Demeestere, Anton Nikiforov, Stijn W. H. Van Hulle","doi":"10.1080/10643389.2025.2511673","DOIUrl":"https://doi.org/10.1080/10643389.2025.2511673","url":null,"abstract":"Nonthermal plasma wastewater treatment technology, which combines the advantages of advanced oxidation processes (AOPs) and advanced reduction processes (ARPs), has attracted increasing attention for remediating micropollutant-contaminated wastewater over the past few decades. This review article compiles and organizes peer-reviewed scientific publications from the last several years on the application of nonthermal plasma technologies for (waste)water treatment. Special focus is put on an in-depth discussion of (i) the processes of oxidative and reductive species generated by discharge plasma, (ii) the role of reactive species in various micropollutants degradation, and (iii) the possibilities to improve the degradation of micropollutants by scale up the technology and combining plasma with other methods, including catalysis. The analysis reveals that enhancing the utilization of reactive species can be achieved through two main approaches: (i) enhancing the mass transfer of reactive species, and (ii) improving the generation of reactive species with strong redox potential (such as <sup>•</sup>OH and e<sub>aq</sub><sup>–</sup>). The maximum utilization of reactive species can reduce the energy consumption of nonthermal plasma technology and promote its industrial application. This review offers a comprehensive exploration of the generation, contribution and utilization of reactive species in plasma technology for micropollutant degradation, addressing gaps in existing literature by focusing on the scalability of nonthermal plasma in industrial applications.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"31 1","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-19DOI: 10.1080/10643389.2024.2438444
Luowen Lyu, Robert Fleck, Stephen Matheson, William L. King, Taryn L. Bauerle, Fraser R. Torpy, Peter J. Irga
The built indoor environment, including domestic housing and commercial offices, has significantly lower air quality relative to ambient outdoor air. Methods of air purification typically rely on traditional mechanical filtration methods such as heating, ventilation and air conditioning systems, which are energetically intensive and require routine maintenance to ensure adequate filtration. To reduce energy demands and to improve urban sustainability, phytoremediation technologies have emerged as a promising method for the remediation of indoor air quality. Due to the need to identify and optimize sustainable methods to improve air quality, we present a comprehensive review on the mechanisms for plant-driven and microbial-driven removal of gaseous contaminants (i.e. volatile organic compounds) is warranted. The literature indicates that indoor air phytoremediation systems rely on complex of both the biological aspects (plant parts, substrate, microbial community, substrate moisture) and abiotic factors (airflow and moisture content), however it is evident that the method for optimal application of these factors within systems is currently significantly understudied, especially in relation to research done in-situ. The authors recommend future research directions should be targeted at plant biochemical analysis of phytoremediation systems exposed to real world pollutants like petroleum vapor, vehicle emissions, and mixed synthetic furnishings of-gassing, as well as the dynamics of the substrate microbial community within root systems. The assessment and developed understanding of these key areas are not only essential for the progression of the field of research but also for continued wide spread adoption for these phytoremediation systems.
{"title":"Phytoremediation of indoor air: Mechanisms of pollutant translocation and biodegradation","authors":"Luowen Lyu, Robert Fleck, Stephen Matheson, William L. King, Taryn L. Bauerle, Fraser R. Torpy, Peter J. Irga","doi":"10.1080/10643389.2024.2438444","DOIUrl":"https://doi.org/10.1080/10643389.2024.2438444","url":null,"abstract":"The built indoor environment, including domestic housing and commercial offices, has significantly lower air quality relative to ambient outdoor air. Methods of air purification typically rely on traditional mechanical filtration methods such as heating, ventilation and air conditioning systems, which are energetically intensive and require routine maintenance to ensure adequate filtration. To reduce energy demands and to improve urban sustainability, phytoremediation technologies have emerged as a promising method for the remediation of indoor air quality. Due to the need to identify and optimize sustainable methods to improve air quality, we present a comprehensive review on the mechanisms for plant-driven and microbial-driven removal of gaseous contaminants (i.e. volatile organic compounds) is warranted. The literature indicates that indoor air phytoremediation systems rely on complex of both the biological aspects (plant parts, substrate, microbial community, substrate moisture) and abiotic factors (airflow and moisture content), however it is evident that the method for optimal application of these factors within systems is currently significantly understudied, especially in relation to research done <i>in-situ</i>. The authors recommend future research directions should be targeted at plant biochemical analysis of phytoremediation systems exposed to real world pollutants like petroleum vapor, vehicle emissions, and mixed synthetic furnishings of-gassing, as well as the dynamics of the substrate microbial community within root systems. The assessment and developed understanding of these key areas are not only essential for the progression of the field of research but also for continued wide spread adoption for these phytoremediation systems.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"108 1","pages":"676-707"},"PeriodicalIF":12.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-19DOI: 10.1080/10643389.2024.2436161
Hao Zhang, Zhangjie Yu, Jinlong Wang, Zheng Ke, Le Tong, Xiaobin Tang, Langming Bai, Han Zhang, Guibai Li, Heng Liang
Nanofiltration and reverse osmosis have become prevalent methods for treating inland wastewater because of superior separation efficiency and operational simplicity, yet they produce highly polluting membrane concentrates (e.g., from municipal potable water and municipal and industrial wastewater) containing biological, organic, and salt pollutants. Managing membrane concentrates poses significant challenges, often resulting in underutilization of their valuable components. This paper discusses strategies for reducing, rendering harmless, and utilizing resources from membrane concentrates, along with their future development trends. Methods for reducing membrane concentrate formation, such as optimizing operational modes and membrane modification, are examined. Generally, the preprocessing methods can be used as an oxidation pretreatment to improve the removal of macromolecular pollutants in the membrane concentrates, and provide conditions for the targeted removal of non-biodegradability emerging contaminants by free radicals in the oxidation process. The biological treatment further treats biodegradable pollutants. Finally, biosafety and water quality can be guaranteed through the membrane process, so as to achieve near-zero emissions. Resource recovery options include the production of salt crystals (e.g., potassium and magnesium phosphate, hydroxyapatite), microalgae resources, and others. Additionally, non-chemical pretreatment before membrane processing is proposed to simplify the treatment of membrane concentrates. A new analytic hierarchy process aids in selecting appropriate treatment and resource utilization processes for membrane concentrates. Furthermore, there is a call for the establishment and reinforcement of water quality legislation to address emerging contaminants in membrane concentrates, as well as regulations governing the purity of resources such as salts recovered from membrane concentrates.
{"title":"A review of inland nanofiltration and reverse osmosis membrane concentrates management: Treatment, resource recovery and future development","authors":"Hao Zhang, Zhangjie Yu, Jinlong Wang, Zheng Ke, Le Tong, Xiaobin Tang, Langming Bai, Han Zhang, Guibai Li, Heng Liang","doi":"10.1080/10643389.2024.2436161","DOIUrl":"https://doi.org/10.1080/10643389.2024.2436161","url":null,"abstract":"Nanofiltration and reverse osmosis have become prevalent methods for treating inland wastewater because of superior separation efficiency and operational simplicity, yet they produce highly polluting membrane concentrates (e.g., from municipal potable water and municipal and industrial wastewater) containing biological, organic, and salt pollutants. Managing membrane concentrates poses significant challenges, often resulting in underutilization of their valuable components. This paper discusses strategies for reducing, rendering harmless, and utilizing resources from membrane concentrates, along with their future development trends. Methods for reducing membrane concentrate formation, such as optimizing operational modes and membrane modification, are examined. Generally, the preprocessing methods can be used as an oxidation pretreatment to improve the removal of macromolecular pollutants in the membrane concentrates, and provide conditions for the targeted removal of non-biodegradability emerging contaminants by free radicals in the oxidation process. The biological treatment further treats biodegradable pollutants. Finally, biosafety and water quality can be guaranteed through the membrane process, so as to achieve near-zero emissions. Resource recovery options include the production of salt crystals (e.g., potassium and magnesium phosphate, hydroxyapatite), microalgae resources, and others. Additionally, non-chemical pretreatment before membrane processing is proposed to simplify the treatment of membrane concentrates. A new analytic hierarchy process aids in selecting appropriate treatment and resource utilization processes for membrane concentrates. Furthermore, there is a call for the establishment and reinforcement of water quality legislation to address emerging contaminants in membrane concentrates, as well as regulations governing the purity of resources such as salts recovered from membrane concentrates.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"24 1","pages":"1-27"},"PeriodicalIF":12.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-19DOI: 10.1080/10643389.2024.2443284
Clement Matthew Chan, Serena Yim, Paul Lant, Steven Pratt, Bronwyn Laycock
Biodegradable plastics show promise in addressing traditional plastic waste issues. However, most commercially available biodegradable plastic products are blended/composite materials, combining biodegradable polymers with other polymers, fillers and additives. Non-reactive functional additives, such as plasticizers and stabilizers, raise concerns due to potential leaching as well as release on degradation. Thus, understanding how these additives affect biodegradation rates and processes is crucial, and a comprehensive overview is missing in the literature. This review highlights that the localized additive concentration levels adjacent to the plastic materials could, at least for a time, exceed the threshold concentrations for substantial impacts on microbial activities, especially in slow transport media such as soil and compost. Of the available literature, it is concerning that only a small fraction reported continuous quantitative biodegradation data with sampling frequency and duration adequate for comprehensive data synthesis. In those studies, the presence of additives resulted in an extended lag time for biodegradation compared to virgin polymer. Interestingly, additives also typically increased the biodegradation rate following this initial lag time. Overall, variation was observed in the half-life of biodegradable polymer/additive blends when considering both lag time and biodegradation rate. The likely key controlling factors dictating how additives impact biodegradable plastics biodegradation include the rate of additive leaching, alterations in polymer properties induced by additives and their leaching, and the intrinsic characteristics of the additives themselves. Future life cycle analysis and environmental impact assessments of new bioplastic products must consider the influence of additives.
{"title":"The impact of functional additives on biodegradable plastic biodegradation in natural terrestrial and composting environments","authors":"Clement Matthew Chan, Serena Yim, Paul Lant, Steven Pratt, Bronwyn Laycock","doi":"10.1080/10643389.2024.2443284","DOIUrl":"https://doi.org/10.1080/10643389.2024.2443284","url":null,"abstract":"Biodegradable plastics show promise in addressing traditional plastic waste issues. However, most commercially available biodegradable plastic products are blended/composite materials, combining biodegradable polymers with other polymers, fillers and additives. Non-reactive functional additives, such as plasticizers and stabilizers, raise concerns due to potential leaching as well as release on degradation. Thus, understanding how these additives affect biodegradation rates and processes is crucial, and a comprehensive overview is missing in the literature. This review highlights that the localized additive concentration levels adjacent to the plastic materials could, at least for a time, exceed the threshold concentrations for substantial impacts on microbial activities, especially in slow transport media such as soil and compost. Of the available literature, it is concerning that only a small fraction reported continuous quantitative biodegradation data with sampling frequency and duration adequate for comprehensive data synthesis. In those studies, the presence of additives resulted in an extended lag time for biodegradation compared to virgin polymer. Interestingly, additives also typically increased the biodegradation rate following this initial lag time. Overall, variation was observed in the half-life of biodegradable polymer/additive blends when considering both lag time and biodegradation rate. The likely key controlling factors dictating how additives impact biodegradable plastics biodegradation include the rate of additive leaching, alterations in polymer properties induced by additives and their leaching, and the intrinsic characteristics of the additives themselves. Future life cycle analysis and environmental impact assessments of new bioplastic products must consider the influence of additives.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"183 1","pages":"708-731"},"PeriodicalIF":12.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Managing farmlands’ heavy metal (HM) pollution is crucial for improving plant growth and ensuring agricultural product safety. While low to medium doses of HM exposure may not directly result in crop reduction, they can lead to HM accumulation in plants and potential food-chain risks, as well as trigger the accumulation of reactive oxygen species (ROS). Excessive ROS can cause oxidative stress and irreversible damage to plant cells. Nanozymes, cost-effective and stable artificial nanoparticles with enzyme-like activity, have been widely used in multiple fields. Over the past decade, research has confirmed certain nanozymes’ effectiveness in plant systemic immunity during HM remediation. The activities of nanozymes hinge on their physicochemical properties, while the biological effects also depend on application methods, size, charge, coating, crop varieties, and growth stages. Therefore, it is crucial to understand the nanozyme-plant interactions and resistance mechanisms to HMs. This paper comprehensively reviews nanozyme-mediated ROS scavenging mechanisms across enzymology, metabolomics, proteomics, and transcriptomics. It also introduces the application pathways and effects, influencing factors, possible risks, and prospects. This review may provide a theoretical framework for nanozyme-mediated mitigation of HM stress along with other abiotic stresses in agriculture for sustainable “precision fertilization” with nanozymes.
{"title":"Nanozymes: An innovative approach to regulating heavy metal accumulation in plants and alleviating toxicity-A comprehensive review","authors":"Yaoyao Wang, Xueyuan Gu, Lijuan Zhao, Dongmei Zhou","doi":"10.1080/10643389.2024.2448048","DOIUrl":"https://doi.org/10.1080/10643389.2024.2448048","url":null,"abstract":"Managing farmlands’ heavy metal (HM) pollution is crucial for improving plant growth and ensuring agricultural product safety. While low to medium doses of HM exposure may not directly result in crop reduction, they can lead to HM accumulation in plants and potential food-chain risks, as well as trigger the accumulation of reactive oxygen species (ROS). Excessive ROS can cause oxidative stress and irreversible damage to plant cells. Nanozymes, cost-effective and stable artificial nanoparticles with enzyme-like activity, have been widely used in multiple fields. Over the past decade, research has confirmed certain nanozymes’ effectiveness in plant systemic immunity during HM remediation. The activities of nanozymes hinge on their physicochemical properties, while the biological effects also depend on application methods, size, charge, coating, crop varieties, and growth stages. Therefore, it is crucial to understand the nanozyme-plant interactions and resistance mechanisms to HMs. This paper comprehensively reviews nanozyme-mediated ROS scavenging mechanisms across enzymology, metabolomics, proteomics, and transcriptomics. It also introduces the application pathways and effects, influencing factors, possible risks, and prospects. This review may provide a theoretical framework for nanozyme-mediated mitigation of HM stress along with other abiotic stresses in agriculture for sustainable “precision fertilization” with nanozymes.","PeriodicalId":10823,"journal":{"name":"Critical Reviews in Environmental Science and Technology","volume":"39 1","pages":"732-756"},"PeriodicalIF":12.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-19DOI: 10.1080/10643389.2024.2413202
Mathew P. Johansen, Justin P. Gwynn, Julia G. Carpenter, Sabine Charmasson, Paul Mc Ginnity, Airi Mori, Blake Orr, Marie Simon-Cornu, Iolanda Osvath
Seafood is an important source for meeting future global nutrient demands. However, it also contributes disproportionately to the radiological ingestion dose of more than five billion world consumers– up to ∼70%–80% of the total-foods dose in some countries. Although numerous studies report seafood doses in specific populations, there is still no comprehensive evaluation answering basic questions such as “what is the ingestion dose to the average global seafood consumer?” Analysis of 238 worldwide seafood dose estimates suggests that typical adult consumers receive from 0.13 to 0.21 mSv, with a likely best estimate of 0.15 mSv per annual seafood intake. Those consuming large amounts of seafood, particularly bivalves, may experience ingestion doses exceeding 1 mSv per annual intake, surpassing other routine background dose sources. The published studies suggest that doses of 3 mSv or greater are surpassed in about 150 million adult seafood consumers worldwide. Almost all this dose comes from the natural radionuclides that are prevalent in marine systems–especially 210Po. While trace levels of anthropogenic radionuclides are ubiquitous in seafoods (e.g.,137Cs and 239Pu), the added dose from these is typically orders of magnitude lower. Even following the large-scale releases from the Fukushima accident, with food safety controls in place, the additional dose to consumers in Japan was small relative to routine dose from natural background radionuclides. However, the worldwide seafood dose estimates span seven orders of magnitude, indicating a need for an assessment that integrates global seafood radionuclide data as well as incorporating changes in seafood consumption and production patterns.
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