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Comparative evaluation of SPE methods for biotoxicity assessment of water and wastewater:Linkage between chemical extracting efficiency and biotoxicity outcome

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Journal of environmental Sciences 2024年第8期142卷 33-42页

作者： Jiawei Zhou Shihao Wang Xiwei He Hongqiang Ren Xu-Xiang Zhang State Key Laboratory of Pollution Control and Resource Reuse School of EnvironmentNanjing UniversityNanjing 210023China

Biotoxicity assessment results of environmental waters largely depend on the sample extraction protocols that enrich pollutants to meet the effect-trigger thresholds of ***,more chemical mixture does not necessarily translate to higher combined ***,there is a need to establish the link between chemical extracting efficiency and biotoxicity outcome to standardize extraction methods for biotoxicity assessment of environmental *** study compares the performance of five different extraction phases in solid phase extraction(SPE),namely HLB,HLB+Coconut,C18 cartridge,C18 disk and Strata-X,and evaluated their chemical extracting efficiencies and biotoxicity *** quantitatively assessed cytotoxicity,acute toxicity,genotoxicity,estrogenic activity,and neurotoxicity of the extracts using in vitro bioassays and characterized the chemical extracting efficiencies of the SPE methods through chemical recoveries of 23 model compounds with different polarities and total organic *** Pareto ranking,we identified HLB+Coconut as the optimal SPE method,which exhibited the highest level of water sample biotoxicity and recovered the most chemicals in water *** found that the biotoxicity outcomes of the extracted water samples significantly and positively correlated with the chemical extracting efficiencies of the SPE ***,we observed synchronous changing patterns in biotoxicity outcome and chemical extracting efficiencies in response to increasing sample volumes per cartridge(SVPC)during *** findings underscore that higher chemical extracting efficiency of SPE corresponds to higher biotoxicity outcome of environmental water samples,providing a scientific basis for standardization of SPE methods for adequate assessment of biotoxicities of environmental waters.

关键词： Biotoxicity Chemical recovery Solid phase extraction Surface water Wastewater

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Preparation and photocatalytic performance study of dual Z-scheme Bi_(2)Zr_(2)O_(7)/g-C_(3)N4/Ag_(3)PO_(4) for removal of antibiotics by visible-light

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Journal of environmental Sciences 2023年第3期125卷 349-361页

作者： Zhengjun Qu Zhenyang Jing Xiaoming Chen Zexiang Wang Hongfei Ren Lihui Huang Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityQingdao 266237China

At present,the high re-combination rate of photogenerated carriers and the low redox capability of the photocatalyst are two factors that severely limit the improvement of photocatalytic ***,a dual Z-scheme photocatalyst bismuthzirconate/graphitic carbon nitride/silver phosphate (Bi_(2)Zr_(2)O_(7)/g-C_(3)N4/Ag_(3)PO_(4)(BCA)) was synthesized using a co-precipitation method,and a dual Z-scheme heterojunction photocatalytic system was established to decrease the high re-combination rate of photogenerated carriers and consequently improve the photocatalytic *** re-combination of electron-hole pairs(e-and h+) in the valence band (VB) of g-C_(3)N4increases the redox potential of e-and h+,leading to significant improvements in the redox capability of the photocatalyst and the efficiency of e--h+*** a photosensitizer,Ag_(3)PO_(4)can enhance the visible light absorption capacity of the *** prepared photocatalyst showed strong stability,which was attributed to the efficient suppression of photo-corrosion of Ag_(3)PO_(4)by transferring the e-to the VB of g-C_(3)*** was degraded efficiently by BCA-10%(the BCA with 10 wt.%of AgPO_(4)) under visible light,and the degradation efficiency was up to 86.2%.This study experimentally suggested that the BCA photocatalyst has broad application prospects in removing antibiotic pollution.

关键词： Photocatalysis Bi_(2)Zr_(2)O_(7)/g-C_(3)N4/Ag_(3)PO_(4) Dual Z-scheme photocatalytic system Visible light Tetracycline

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The Future of environmental Engineering Technology:A Disruptive Innovation Perspective

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Engineering 2024年第10期41卷 153-160页

作者： Hui Huang Junjie Lu Lili Jin Hongqiang Ren State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

Scientific and technological revolutions and industrial transformations have accelerated the rate of innovation in environmental engineering ***,few researchers have evaluated the current status and future trends of *** paper summarizes the current research status in eight major subfields of environmental engineering—water treatment,air pollution control,soil/solid waste management,environmental biotechnology,environmental engineering equipment,emerging contaminants,synergistic reduction of pollution and carbon emissions,and environmental risk and intelligent management—based on bibliometric analysis and future trends in greenization,low carbonization,and *** technologies are further identified based on discontinuous transformation,and ten such technologies are proposed,covering general and specific fields,technical links,and value ***,the background and key innovations in disruptive technologies are elucidated in *** study not only provides a scientific basis for strategic decision-making,planning,and implementation in the environmental engineering field but also offers methodological guidance for the research and determination of breakthrough technologies in other areas.

关键词： environmental engineering technology Disruptive innovation Bibliometric analysis Discontinuous transformation

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An embedded ReS_(2)@MAPbBr_(3) heterostructure with downhill interfacial charge transfer for photocatalytic upgrading of biomass-derived alcohols to aldehydes and H_(2)

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Journal of Materials Science & Technology 2024年第12期179卷 155-165页

作者： Tao Shan Yanbo Li Sunzai Ke Bo Su Lijuan Shen Sibo Wang Xuhui Yang Min-Quan Yang College of Environmental and Resource Sciences College of Carbon Neutral Modern IndustryFujian Key Laboratory of Pollution Control&Resource ReuseFujian Normal UniversityFuzhou 350117China State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350116China

Solar-driven selective upgrading of lignocellulosic biomass-derived alcohols to value-added chemicals and clean fuel hydrogen(H_(2))shows great potential for tackling the energy crisis and environmental pollu-tion ***,we construct a MAPbBr_(3)/ReS_(2) heterostructure by embedding distorted tetragonal(1T)phase ReS_(2) nanoflowers into large-sized MAPbBr_(3) for green value-added utilization of biomass-derived *** embedded structure effectively enlarges the contact interface between the ReS_(2) and the MAPbBr_(3),and importantly,induces a strong built-in electric field aligned between the spatially well-defined MAPbBr_(3) and ReS_(2) ***,the distorted 1T phase ReS_(2) with low work function well matches the energy band of MAPbBr_(3),forming a heterostructure with a downward band bending at the *** features empower the MAPbBr_(3)/ReS_(2) photocatalyst with high capability to promote charge separation and expedite the surface redox ***,optimal BAD and H_(2) production rates of about 1220 μmol h-1 g-1 are realized over a MAPbBr_(3)/ReS_(2) 2%sample,which are approximately 9 times greater than those of blank MAPbBr_(3).This work demonstrates the great potential of constructing an embedded transition metal dichalcogenide@metal halide perovskites heterostructure with downhill interfacial charge transfer for photocatalytic upgrading of biomass-derived alcohols.

关键词： Heterostructure Downhill interface Biomass-derived alcohols ReS_(2) MAPbBr_(3) H_(2) evolution

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Impact of different organic matters on the occurrence of antibiotic resistance genes in activated sludge

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Journal of environmental Sciences 2023年第5期127卷 273-283页

作者： Xiuwen Zhang Suwan Liu Haohao Sun Kailong Huang Lin Ye State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China Nanjing Jiangdao Institute of Environmental Research Co. Ltd.Nanjing 210019China

The occurrence of antibiotic resistance genes(ARGs)in various environments has drawn worldwide attention due to their potential *** studies have reported that a variety of substances can enhance the occurrence and dissemination of ***,few studies have compared the response of ARGs under the stress of different organicmatters in biologicalwastewater treatment *** this study,seven organic pollutantswere added into wastewater treatment bioreactors to investigate their impacts on the ARG occurrence in activated *** on high-throughput sequencing,it was found that the microbial communities and ARG patterns were significantly changed in the activated sludge exposed to these organic *** with the non-antibiotic refractory organic matters,antibiotics not only increased the abundance of ARGs but also significantly changed the ARG *** increase of Gram-negative bacteria(e.g.,Archangium,Prosthecobacter and Dokdonella)carrying ARGs could be the main cause of ARG *** addition,significant co-occurrence relationships between ARGs and mobile genetic elements were also observed in the sludge samples,which may also affect the ARG diversity and abundance during the organic matter treatment in the ***,these findings provide new information for better understanding the ARG occurrence and dissemination caused by organic pollutants in wastewater treatment systems.

关键词： Organic pollutants Antibiotic resistance genes Metagenomic sequencing Mobile genetic elements Microbial community

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Intake of tobacco nitrosamines of smokers in various provinces of China and their cancer risk:A meta-analysis

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Journal of environmental Sciences 2024年第7期141卷 249-260页

作者： Xiao Li Zhiwei Ye Jun Wang Pengfei Lin Xiaojin Zhang Shuguang Xie Chao Chen Research Institute for Environmental Innovation(Suzhou) TsinghuaSuzhouJiangsu 215163China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Shenzhen Key Laboratory of Organic Pollution Prevention and Control State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyShenzhen 518055China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Science and EngineeringPeking UniversityBeijing 100871China

Nitrosamines are a class of carcinogens which have been detected widely in food,water,some pharmaceuticals as well as *** objectives of this paper include reviewing the basic information on tobacco consumption and nitrosamine contents,and assessing the health risks of tobacco nitrosamines exposure to Chinese *** searched the publications in English from“Web of Science”and those in Chinese from the“China National Knowledge Infrastructure”in 2022 and collected 151 literatures with valid *** content of main nitrosamines in tobacco,including 4-(methylnitrosoamino)-1-(3-pyridyl)-1-butanone(NNK),N-nitrosonornicotine(NNN),N-nitrosoanatabine(NAT),N-nitrosoanabasine(NAB),total tobacco-specific nitrosamines(TSNA),and N-nitrosodimethylamine(NDMA)were *** information of daily tobacco consumption of smokers in 30 provinces of China was also ***,the intakes of NNN,NNK,NAT,NAB,TSNAs,and NDMA via tobacco smoke were estimated as 1534ng/day,591 ng/day,685 ng/day,81 ng/day,2543 ng/day,and 484 ng/day by adult smokers in30 provinces,*** cancer risk(CR)values for NNN and NNK inhalation intake were further calculated as 1.44×10^(-5)and 1.95×10^(-4).The CR value for NDMA intake via tobacco smoke(inhalation:1.66×10^(-4))indicates that NDMA is similarly dangerous in tobacco smoke when compared with the *** China,the CR values caused by average nitrosamines intake via various exposures and their order can be estimated as the following:smoke(3.75×10^(-4))>food(1.74×10^(-4))>drinking water(1.38×10^(-5)).Smokers in China averagely suffer 200%of extra cancer risk caused by nitrosamines in tobacco when compared with non-smokers.

关键词： N-nitrosamine Tobacco Cancer risk Tobacco specific nitrosamines(TSNAs) N-nitrosodimethylamine(NDMA)

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Ultralow-Energy-Barrier H_(2)O_(2)Dissociation on Coordinatively Unsaturated Metal Centers in Binary Ce-Fe Prussian Blue Analogue for Efficient and Stable Photo-Fenton Catalysis

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Energy & environmental Materials 2023年第6期6卷 427-435页

作者： Wenting Zheng Hui Guo Changqing Zhu Cailiang Yue Wenlei Zhu Fuqiang Liu Zhaoxu Chen State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China Institute of Theoretical and Computational Chemistry Key Laboratory of Mesoscopic Chemistry of MOESchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

The low intrinsic activity of Fenton catalytic site and high demand for light-energy input inhibit the organic-pollution control efficiency of photo-Fenton ***,through structural design with density functional theory(DFT)calculations,Ce is predicted to enable the construction of coordinatively unsaturated metal centers(CUCs)in Prussian blue analogue(PBA),which can strongly adsorb H_(2)O_(2)and donate sufficient electrons for directly splitting the O-O bond to *** a substitution-co-assembly strategy,binary Ce-Fe PBA is then prepared,which rapidly degrades sulfamethoxazole with the pseudo-first-order kinetic rate constant exceeding reported values by 1-2 orders of ***,the photogenerated electrons reduce Fe(Ⅲ)and Ce(Ⅳ)to promote the metal valence cycle in CUCs and make sulfamethoxazole degradation efficiency only lose 6.04%in 5 ***,by introducing rare earth metals into transition metal-organic frameworks,this work guides the whole process for highly active CUCs from design and construction to mechanism exploration with DFT calculations,enabling ultrafast and stable photo-Fenton catalysis.

关键词： Ce substitution coordinatively unsaturated metal centers photo-Fenton Prussian blue analogue

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Evolution of soil DOM during thermal remediation below 100℃:concentration,spectral characteristics and complexation ability

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Frontiers of environmental Science & Engineering 2024年第8期18卷 31-41页

作者： Wan Huang Ziren Wan Di Zheng Lifeng Cao Guanghe Li Fang Zhang State Key Joint Laboratory of Environment Simulation and Pollution Control State Environment Protection Key Laboratory of Microorganism Application and Risk ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China National Engineering Laboratory for Site Remediation Technologies Beijing 100015China

The impact of thermal remediation on soil function has drawn increasing *** far,as the most active fraction of soil organic matter,the evolution of dissolved organic matter(DOM)during the thermal remediation lacks in-depth investigation,especially for the temperatures value below 100℃.In this study,a series of soil thermal treatment experiments was conducted at 30,60,and 90℃ during a 90-d period,where soil DOM concentration increased with heating temperature and *** molecular weight,functional groups content and aromaticity of DOM all decreased during the thermal *** excitation-emission matrices(EEM)results suggested that humic acid-like substances transformed into fulvic acid-like substances(FIII/FV increased from 0.27 to 0.44)during the heating process,and five DOM components were further identified by *** change of DOM structures and components indicated the decline of DOM stability and hydrophilicity,and can potentially change the bioavailability and *** temperature also resulted in the decline of DOM complexation ability,which may be caused by the loss of binding sites due to the decrease of polar function groups,aromatic structures and hydrophilic *** study provides valuable information about the evolution of DOM during thermal remediation,which would potentially change the fate of metal ions and the effectiveness of the post-treatment technologies in the treated region.

关键词： Thermal remediation below 100℃ Heating temperature Soil DOM concentration DOM spectral characteristics Excitation-emission matrices(EEM) Complexation ability

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Sulfur-driven methylmercury production in paddies continues following soil oxidation

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Journal of environmental Sciences 2022年第9期34卷 166-174页

作者： Wenli Tang Chao Tang Pei Lei School of the Environment State Key Laboratory of Pollution Control and Resource ReuseNanjing UniversityNanjing 210023China School of Environment Nanjing Normal UniversityNanjing 210023China

Methylmercury(MeHg) production in paddy soils and its accumulation in rice raise global concerns since rice consumption has been identified as an important pathway of human exposure to MeHg. Sulfur(S) amendment via fertilization has been reported to facilitate Hg methylation in paddy soils under anaerobic conditions, while the dynamic of S-amendment induced MeHg production in soils with increasing redox potential remains unclear. This critical gap hinders a comprehensive understanding of Hg biogeochemistry in rice paddy system which is characterized by the fluctuation of redox potential. Here, we conducted soil incubation experiments to explore MeHg production in slow-oxidizing paddy soils amended with different species of S and doses of sulfate. Results show that the elevated redox potential(1) increased MeHg concentrations by 10.9%-35.2%, which were mainly attributed to the re-oxidation of other S species to sulfate and thus the elevated abundance of sulfatereducing bacteria, and(2) increased MeHg phytoavailability by up to 75% due to the reductions in acid volatile sulfide(AVS) that strongly binds MeHg in soils. Results obtained from this study call for attention to the increased MeHg production and phytoavailability in paddy soils under elevated redox potentials due to water management, which might aggravate the MeHg production induced by S fertilization and thus enhance MeHg accumulation in rice.

关键词： Mercury Sulfur Availability Mercury methylation Rice

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Catalytic ozonation in advanced treatment of kitchen wastewater:multi-scale simulation and pilot-scale study

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Frontiers of environmental Science & Engineering 2023年第12期17卷 47-58页

作者： Zuoyong Zhou Ni Yan Mengxi Yin Tengfei Ren Shuning Chen Kechao Lu Xiaoxin Cao Xia Huang Xiaoyuan Zhang State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China

Catalytic ozonation is regarded as a promising technology in the advanced treatment of refractory organic ***-bed reactors are widely used in practical applications due to simple structures,installation and ***,mass transfer of packed-bed reactors is relatively restrained and amplified deviations usually occurred in scale-up ***,a multi-scale packed-bed model of catalytic ozonation was established to guide pilot ***,a laboratory-scale test was conducted to obtain kinetic parameters needed for ***,a multi-scale packed-bed model was developed to research the effects of water distribution structure,catalyst particle size,and hydraulic retention time(HRT)on catalytic *** was found that the performance of packed bed reactor was increased with evenly distributed water inlet,HRT of 60 min,and catalyst diameter of about 3-7 ***,an optimized reactor was manufactured and a pilot-scale test was conducted to treat kitchen wastewater using catalytic ozonation *** the pilot-scale test with an ozone dosage of 50 mg/L and HRT of 60 min,the packed-bed reactor filled with catalysts I was able to reduce chemical oxygen demand(COD)from 117 to 59 mg/*** performance of the catalytic ozonation process in the packed-bed reactor for the advanced treatment of actual kitchen wastewater was investigated via both multi-scale simulation and pilot-scale tests in this study,which provided a practical method for optimizing the reactors of treating refractory organic wastewater.

关键词： Catalytic ozonation Multi-scale simulation Pilot-scale study Kitchen wastewater

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