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emerging contaminants in biosolids:Presence,fate and analytical techniques

emerging contaminants 2022年第1期8卷 162-194页

作者： Ravinder Kumar Arun K.Vuppaladadiyam Elsa Antunes Anna Whelan Rob Fearon Madoc Sheehan Louise Reeves College of Science&Engineering James Cook UniversityTownsvilleQLD4811Australia Townsville City Council Wastewater OperationsTownsvilleQLD4810Australia Queensland Water Directorate BrisbaneQLD4009Australia

emerging contaminants(ECs)represent a small fraction of the large chemical pollution puzzle where a wide variety of potentially hazardous chemicals reach the environment,and new compounds are continuously synthesized and released in wastewater treatment plants and ultimately in effluent and *** have been classified into various categories;however,this article focuses on the fate of major categories,namely pharmaceutical and personal care products(PPCPs),per-and poly-fluoroalkyl substances(PFAS),flame retardants,surfactants,endocrine-disrupting chemicals(EDCs),and microplastics(MPs).These ECs when discharged to sewer and downstream wastewater treatment plants can undergo further transformations and either degrade,persist or convert into by-products which have the potential in some cases to be more *** of potential dangerous impacts of the availability of these contaminants in the environment,information on the fate and behavior of these pollutants is highly important to develop new strategies,such as the regulation of chemicals imported into Australia and Australian consumer goods and environmental policies to mitigate them in a sustainable ***,advanced technologies are required for the detection and identification of novel contaminants emerging in the environment at ultra low *** application of chromatographic techniques coupled with mass spectroscopy has provided attractive breakthroughs to detect new emerging ***,it is crucially important to understand the sensitivity and robustness of these analytical techniques when dealing with complex matrices such as *** addition,most of the literature was focused on selected compounds or a family of compounds and the existing reviews have paid less attention to examine the formation of metabolites during the wastewater treatment process and their impacts on the *** review presents an overview of the presence of different classes of ECs around the wo

关键词： Biosolids Endocrine-disrupting chemicals emerging contaminants Flame retardants Microplastics Per-and poly-fluoroalkyl substances Pharmaceutical and personal care products

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Integrated risk assessment framework for transformation products of emerging contaminants:what we know and what we should know

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Frontiers of Environmental Science & Engineering 2023年第7期17卷 187-195页

作者： Shengqi Zhang Qian Yin Siqin Wang Xin Yu Mingbao Feng Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems College of the Environment&EcologyXiamen UniversityXiamen 361102China

The continuous input of various emerging contaminants(ECs)has inevitably introduced large amounts of transformation products(TPs)in natural and engineering water *** similar to the precursor species,the TPs are expected to possess comparative,if not more serious,environmental properties and *** review summarizes the state-of-the-art knowledge regarding the integrated risk assessment frameworks of TPs of ECs,mainly involving the exposure-and effectdriven *** inadequate information within existing frameworks that was essential and critical for developing a better risk assessment framework was *** main strategic improvements include(1)non-targeted product analysis in both laboratory and field samples,(2)omics-based highthroughput toxicity assessment,(3)multichannel-driven mode of action in conjugation with effectdirected analysis,and(4)machine learning ***,this review provides a concise but comprehensive insight into the optimized strategy for evaluating the environmental risks and screening the key toxic products from the cocktail mixtures of ECs and their TPs in the global water *** facilitates deciphering the mode of toxicity in complex chemical mixtures and prioritizing the regulated TPs among the unknown products,which have the potential to be considered a class of novel"ECs"ofgreatconcern.

关键词： Risk assessment frameworks Trans formation products emerging contaminants High-throughput toxicity screening Water treatment

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Fabrication of Bi-Bi3O4Cl plasmon photocatalysts for removal of aqueous emerging contaminants under visible light

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Journal of Environmental Sciences 2022年第8期34卷 87-100页

作者： Zeqing Long Hui Song Guangming Zhang Jingsi Gao Jia Zhu School of Energy&Environmental Engineering Hebei University of TechnologyXiping roadBeichen districtTianjin 300130China School of Environment&Natural Resources Renmin University of ChinaBeijing 100872China School of Construction and Environment Engineering Shenzhen PolytechnicShenzhen 518055China Shanxi Aerospace Qinghua Equipment Co. Ltd.Changzhi 046012China

Photocatalytic oxidation of emerging contaminants(ECs) in water has recently gained extensive attentions. In this study, bismuth oxychloride-based plasmon photocatalysts(BiBiOCl) exhibiting high performance were successfully developed by reducing Bion the surface of BiOCl. Consequently, the photocatalysts were used to remove ECs from *** effects of developmental process and Bi metal plasmon resonance on the photoelectric performances of Bi-BiOCl were investigated through a series of characterizations. The UV-vis diffuse reflection and photoluminescence spectra revealed that the light absorption range of the photocatalyst gradually increased and the electron recombination rate gradually decreased with the introduction of Bi metals. The optimal removal rates of ciprofloxacin and tetrabromobisphenol A by Bi-BiOCl were 93.8% and 96.4%;the respective reaction rate constants were 5.48 and 4.93 times higher than that of BiOCl. The mechanism study indicated that main reactants in the photocatalytic system were ·O-2radicals and photogenerated holes, and the existence of oxygen vacancies and Bi metals promoted electron transfer in photocatalyst. In conclusion, this research produces a novel, green, highly efficient, and stable visible light photocatalyst for the removal of ECs from water.

关键词： Plasmon photocatalysts Environmental purification Bi3O4Cl emerging contaminants Hazardous substance

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Roadmap of environmental health research on emerging contaminants: Inspiration from the studies on engineered nanomaterials

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Eco-Environment & Health 2022年第3期1卷 181-197页

作者： Xiaona Li Feng He Zhenyu Wang Baoshan Xing Institute of Environmental Processes and Pollution Control and School of Environment and Civil EngineeringJiangnan UniversityWuxi 214122China Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology Jiangnan UniversityWuxi 214122China Stockbridge School of Agriculture University of MassachusettsAmherstMA 01003United States

Research on the environmental health of emerging contaminants is critical to understand their risks before causing severe ***,the low environmental concentrations,complex behaviors,and toxicology of emerging contaminants present enormous challenges for ***,we reviewed the research on the environmental health of engineered nanomaterials(ENMs),one of the typical emerging contaminants,to enlighten pathways for future research on emerging contaminants at their initial exploratory *** date,some developed pretreatment methods and detection technologies have been established for the determination of ENMs in natural *** mechanisms underlying the transfer and transformation of ENMs have been systematically explored in laboratory *** mechanisms of ENMs-induced toxicity have also been preliminarily clarified at genetic,cellular,individual,and short food chain levels,providing not only a theoretical basis for revealing the risk change and environmental health effects of ENMs in natural environments but also a methodological guidance for studying environmental health of other emerging ***,due to the interaction of multiple environmental factors and the high diversity of organisms in natural environments,health effects observed in laboratory studies likely differ from those in natural *** propose a holistic approach and mesocosmic model ecosystems to systematically carry out environmental health research on emerging contaminants,obtaining data that determine the objectivity and accuracy of risk assessment.

关键词： emerging contaminants Engineered nanomaterials Holistic approach Mesocosmic systems Natural environments

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emerging contaminants as global environmental hazards.A bibliometric analysis

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emerging contaminants 2020年第1期6卷 179-193页

作者： Howard Ramírez-Malule Diego H.Quinones-Murillo Diego Manotas-Duque Escuela de Ingeniería Química Universidad del ValleA.A.25360CaliColombia Grupo de Procesos Químicos y Bioquímicos Sostenibles Facultad de IngenieríaUniversidad del Atlantico081007Puerto ColombiaColombia Escuela de Ingeniería Industrial Universidad del ValleA.A.25360CaliColombia

This paper presents a bibliometric analysis of peer-reviewed scientific literature on emerging contaminants published from 2000 through 2019.A total of 4968 documents(among research articles and review papers)collected from Scopus database were analyzed using the VOSviewer 1.6.11 *** to our results,this topic has been capturing researchers’attention over the years and the latter five years of the analysis timespan corresponds to the period of highest scientific productivity on this subject,when a 70.4%of all analyzed documents were *** States,China,Spain,Italy and Canada were the tope5 most productive countries in terms of number of published works,while Science of the Total Environment,Chemosphere,Environmental Science and Pollution Research,Environmental Pollution and Water Research stood out as the journals with the highest number of publications,gathering a 31%of papers and 34%of all *** to the frequency of author keywords,the main specific research topic assessed by the researchers are the occurrence of pharmaceuticals and personal care products in wastewater and the removal of such pollutants by the application of adsorption and advanced oxidation processes.

关键词： emerging contaminants Bibliometric analysis Pharmaceuticals Water pollution Advanced oxidation process Adsorption processes Scientific output

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A review of the role of emerging environmental contaminants in the development of breast cancer in women

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emerging contaminants 2016年第4期2卷 204-219页

作者： Shabana Siddique Cariton Kubwabo Shelley AHarris Prevention and Cancer Control Cancer Care Ontario620 University AvenueTorontoONCanada b Environmental and Radiation Health Sciences Directorate Health Canada50 Colombine DriveOttawaONCanada Occupational Cancer Research Centre Cancer Care OntarioTorontoONCanada Dalla Lana School of Public Health University of TorontoTorontoONCanada

The incidence of breast cancer is on a rise worldwide;it is a disease having a complex *** genetics,environmental and other lifestyle factors play a role in the development of the *** has been a keen interest in studying associations between breast cancer and exposures to emerging environmental chemicals,which mimic estrogens or influence estrogen levels and signaling in the human *** common consequence of an endocrine disrupting chemical exposure is that it may have an impact on breast cancer etiology by stimulating formation as well as progression of breast *** to selected emerging environmental contaminants such as alkylphenols(APs),bisphenol A(BPA),parabens,perfluoroalkyl substances(PFASs),phthalates,polybrominated diphenyl ethers(PBDEs),synthetic musks and triclosan,and their probable role in breast cancer development are *** evaluated include the experimental in vitro and in vivo studies as well as human population based *** vitro and in vivo evidences indicate that a number of emerging environmental contaminants may play a role in the initiation and/or progression of breast *** exposures have been assessed in some human populations,breast and other cancer risks associated with these exposures are largely *** should be focussed on the evaluation of these environmental exposures in human populations and their interactions with each other and other genetic and lifestyle risk factors.

关键词： Breast cancer emerging contaminants Endocrine disrupting chemicals Toxicology Epidemiology BPA PBDEs

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Intensifying electrified flow-through water treatment technologies via local environment modification

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Frontiers of Environmental Science & Engineering 2024年第6期18卷 17-25页

作者： Zheng-Yang Huo Xiaoxiong Wang Xia Huang Menachem Elimelech School of Environment and Natural Resources Institute of Ecological CivilizationRenmin University of ChinaBeijing 100872China Institute for Ocean Engineering Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Center of Double Helix Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Department of Chemical and Environmental Engineering Yale UniversityNew HavenCT 06520-8286USA

Removing high-risk and persistent contaminants from water is challenging,because they typically exist at low concentrations in complex water *** flow-through technologies are viable to overcome the limitations induced by mass transport for efficient contaminant *** the local environment of the flow-through electrodes offers opportunities to further improve the reaction kinetics and selectivity for achieving near-complete removal of these contaminants from ***,we present state-of-the-art local environment modification approaches that can be incorporated into electrified flow-through technologies to intensify water *** first show methods of nanospace incorporation,local geometry adjustment,and microporous structure optimization that can induce spatial confinement,enhanced local electric field,and microperiodic vortex,respectively,for local environment *** then discuss why local environment modification can complement the flow-through electrodes for improving the reaction rate and ***,we outline appropriate scenarios of intensifying electrified flow-through technologies through local environment modification for fit-for-purpose water treatment applications.

关键词： Point-of-use water treatment Electrified membrane Advection-enhanced mass transport Water decontamination and disinfection emerging contaminants

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Applications of flexible electrochemical electrodes in wastewater treatment:A review

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Chinese Chemical Letters 2024年第8期35卷 84-92页

作者： Jiqing Liu Qi Dang Liting Wang Dejin Wang Liang Tang Key Laboratory of Organic Compound Pollution Control Engineering(MOE) School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China School of Resources and Environment Anqing Normal UniversityAnqing 246011China

The advancement of energy storage technology has paved the way for the application of electrochemi-cal processes in achieving low-carbon and precise environmental pollution *** play a crucial role in efficiently removing organic pollutants and heavy *** implement electrochemical pollution control technology in practical engineering,flexible electrode preparation is *** review highlights recent progress in flexible electrode research,focusing on the selection and structural design of flexible electrode *** summarizes the latest advancements in current collectors,active mate-rials,and preparation methods to enhance conductivity,flexibility,and cycle *** application of flexible electrodes in water pollution control is categorized into three aspects:Organic pollutants,inor-ganic pollutants,and composite ***,the challenges and research requirements for enhanc-ing electrode flexibility in environmental governance are discussed,along with prospects for their future applications.

关键词： Flexible electrode Wastewater treatment Photoanode Removal effect emerging contaminants

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Photo enhanced degradation of contaminants of emerging concern in waste water

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emerging contaminants 2020年第1期6卷 283-302页

作者： Olalekan C.Olatunde Alex T.Kuvarega Damian C.Onwudiwe Material Science Innovation and Modelling(MaSIM)Research Focus Area Faculty of Natural and Agricultural SciencesNorth-West UniversityMafikeng CampusPrivate Bag X2046Mmabatho2735South Africa Department of Chemistry School of Physical and Chemical SciencesFaculty of Natural and Agricultural SciencesNorth-West UniversityMafikeng CampusPrivate Bag X2046Mmabatho2735South Africa Nanotechnology and Water Sustainability Research Unit College of ScienceEngineering and TechnologyUniversity of South AfricaFlorida1709South Africa

emerging contaminants are posing serious global threats to the environment due to their diversity,recalcitrant nature and *** disturbing is the fact that current wastewater treatment systems do not have the capacity to deal with these class of *** quest to develop new technologies to mitigate the adverse effects of these contaminants has engendered new research interest on photo-enhanced ***-enhanced processes,with the potential of mineralizing environmental pollutants,currently appears to be the main viable technology for dealing with emerging *** process of contaminant degradation could either proceed via oxidation or reduction routes,referred to as advanced oxidation processes(AOPs)and advanced reduction processes(ARPs)***,different processes have been incorporated into a single system in order to explore the synergy that ensue from the combination of these *** processes that are currently at the front line in dealing with various classes of emerging contaminants,whose presence in the environment continues to grow on a daily basis,are the focus of this review.

关键词： Photocatalysis Advanced oxidation processes Advanced reduction process emerging contaminants Mineralization Waste water

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Evaluation of disinfection byproducts for their ability to affect mitochondrial function

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Journal of Environmental Sciences 2022年第7期34卷 295-304页

作者： George William Kajjumba Rachael E.Bokota Matias Attene-Ramos Erica J.Marti Department of Civil and Environmental Engineering University of NevadaLas VegasNVUSA Department of Environmental and Occupational Health Milken Institute School of Public HealthGeorge Washington UniversityWashington DCUSA

In the race to deliver clean water to communities through potable water reuse, disinfection and water quality assessment are and will continue to be fundamental factors. There are over 700 disinfection byproducts(DBPs) in water;evaluating each compound is practically impossible and very time consuming. A bioanalytical approach could be an answer to this challenge. In this work, the response of four major classes of DBPs toward mitochondrial membrane potential( Δψm) and cytoplasmic adenosine triphosphate(C-ATP) was investigated with human carcinoma(Hep G2) cells. Within 90 min of cell exposure, only the haloacetic acid(HAA) mixture caused a cytotoxic response as measured by C-ATP. All four groups(haloacetonitriles(HANs), trihalomethanes(THMs), nitrosamines(NOAs), and HAAs) responded well to Δψm, R 2 > 0.70. Based on the half-maximum concentration that evoked a 50% response in Δψm, the response gradient was HANs >> HAAs ~ THM > NOAs. The inhibition of the Δψm by HANs is driven by dibromoacetonitrile(DBAN), while dichloroacetonitrile(DCAN) did not cause a significant change in the Δψm at less than 2000 μM. A mixture of HANs exhibited an antagonistic behavior on the Δψm compared to individual compounds. If water samples are concentrated to increase HAN concentrations, especially DBAN, then Δψm could be used as a biomonitoring tool for DBP toxicity.

关键词： Disinfection byproducts Toxicity Mitochondrial membrane potential Dose-response curve In vitro bioassay emerging contaminants

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