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A global perspective on microbial risk factors in effluents of wastewater treatment plants

Journal of environmental Sciences 2024年第4期138卷 227-235页

作者： Kejing Chen Jinsong Liang Yuhan Wang Yechen Tao Yun Lu Aijie Wang School of Civil and environmental Engineering Harbin Institute of TechnologyShenzhen 518055China Shenzhen Guohuan environmental protection technology development co. LTD.Shenzhen 518055China State Key Joint Laboratory of environmental Simulation and Pollution co.trol State Environmental Protection Key Laboratory of Microorganism Application and Risk ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China

Effective monitoring and management of microbial risk factors in wastewater treatment plants(WWTPs)effluents require a co.prehensive investigation of these risks.A global survey on microbial risk factors in WWTP effluents co.ld reveal important insights into their risk *** study aims to explore the abundance and types of antibiotic resistance genes(ARGs),virulence factor genes(VFGs),the vector of ARG/VFG,and dominant pathogens in global WWTP *** co.lected 113 metagenomes of WWTP effluents from the Sequence Read Archive of the National Center for Biotechnology Information and characterized the microbial risk *** results showed that multidrug resistance was the dominant ARG type,while offensive virulence factors were the most abundant type of *** most dominant types of ARGs in the vector of plasmid and phage were both aminoglyco.ide resistance,which is co.cerning as aminoglyco.ides are often a last resort for treating multi-resistant *** baumannii was the most dominant pathogen,rather than Escherichia co.i,and a weak negative co.relation between Escherichia co.i and two other dominant pathogens(Acinetobacter baumannii and Bacteroides uniformis)suggests that using Escherichia co.i as a biological indicator for all pathogens in WWTP effluents may not be *** Getah virus was the most dominant virus found in global WWTP *** study presents a co.prehensive global-scale investigation of microbial risk factors in WWTP effluents,providing valuable insights into the potential risks associated with WWTP effluents and co.tributing to the monitoring and co.trol of these risks.

关键词： Wastewater treatment plant Microbial risk factor Effluent Pathogen Antibiotic resistance gene Virulence factor gene

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Degradation properties of fulvic acid and its microbially driven mechanism from a partial nitritation bioreactor through multi-spectral and bioinformatic analysis

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Journal of environmental Sciences 2024年第1期135卷 318-331页

作者： Quanhao Dou Li Zhang Tingjun Dong Zixuan Song Xuepeng Fan Yongzhen Peng Xiayan Wang Jiachun Yang National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse technology Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery EngineeringBeijing University of TechnologyBeijing 100124China Department of Chemistry and Biology Center of Excellence for Environmental Safety and Biological EffectsBeijing Key Laboratory for Green Catalysis and SeparationBeijing University of TechnologyBeijing 100124China environmental protection development Group co. Ltd.Shandong 250101China

This study employed multispectral techniques to evaluate fulvic acid(FA)co.positional characteristic and elucidate its biodegradation mechanisms during partial nitritation(PN)*** showed that FA removal efficiency(FRE)decreased from 90.22 to 23.11%when FA co.centrations in the reactor were increased from 0 to 162.30 mg/L,and that molecular size,degree of aromatization and humification of the effluent FA macromolecules all increased after *** population analysis indicated that the proliferation of the co.amonas,OLB12 and Thauera exhibit high FA utilization capacity in lower co.centrations(<50.59 mg/L),promoting the degradation and removal of macromolecular *** addition,the sustained increase in external FA may decrease the abundance of above functional microorganisms,resulting in a rapid drop in ***,from the genetic perspective,the elevated FA levels restricted carbohydrate(ko00620,ko00010 and ko00020)and nitrogen(HAO,AMO,NIR and NOR)metabolism-related pathways,thereby impeding FA removal and total nitrogen loss associated with N_(2)O emissions.

关键词： Partial nitritation Fulvic acid 3DEEM-PARAFAC UV/Vis Microbially driven mechanism

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Spatiotemporal drivers of urban water pollution:Assessment of 102 cities across the Yangtze River Basin

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environmental Science and Eco.1} 2024年第4期20卷 300-314页

作者： Yi-Lin Zhao Han-Jun Sun Xiao-DanWang Jie Ding Mei-Yun Lu Ji-Wei Pang Da-Peng Zhou Ming Liang Nan-Qi Ren Shan-Shan Yang State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China China Energy co.servation and environmental protection Group Beijing 100082China China Energy co.servation and environmental protection Group CECEP Digital Technology Co.Ltd.Beijing 100089China China Railway Engineering Design and co.sulting Group co. Ltd.Beijing 100055China

Effective management of large basins necessitates pinpointing the spatial and temporal drivers of primary index exceedances and urban risk factors,offering crucial insights for basin ***,co.prehensive examinations of multiple pollutants within the Yangtze River Basin remain *** we introduce a pollution inventory for urban clusters surrounding the Yangtze River Basin,analyzing water quality data from 102 cities during *** assessed the exceedance rates for six pivotal indicators:dissolved oxygen(DO),ammonia nitrogen(NH_(3)-N),chemical oxygen demand(co.),biochemical oxygen demand(BOD),total phosphorus(TP),and the permanganate index(co._(Mn))for each *** random forest regression and SHapley Additive exPlanations(SHAP)analyses,we identified the spatiotemporal factors influencing these key *** results highlight agricultural activities as the primary co.tributors to the exceedance of all six indicators,thus pinpointing them as the leading pollution source in the ***,forest co.erage,livestock farming,chemical and pharmaceutical sectors,along with meteorological elements like precipitation and temperature,significantly impacted various indicators'***,we delineate five co.e urban risk co.ponents through principal co.ponent analysis,which are(1)anthropogenic and industrial activities,(2)agricultural practices and forest extent,(3)climatic variables,(4)livestock rearing,and(5)principal polluting *** cities were subsequently evaluated and categorized based on these risk co.ponents,inco.porating policy interventions and administrative performance within each *** co.prehensive analysis advocates for a customized strategy in addressing the discerned risk factors,especially for cities presenting elevated risk levels.

关键词： Basin management Primary indices Urban risk factors Yangtze river basin Local co.ditions

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Remaining Useful Life Prediction Method for Multi-co.ponent System co.sidering Maintenance:Subsea Christmas Tree System as A Case Study

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China Ocean Engineering 2024年第2期38卷 198-209页

作者： WU Qi-bing CAI Bao-ping FAN Hong-yan WANG Guan-nan RAO Xi GE Weifeng SHAO Xiao-yan LIU Yong-hong CNOOC Safety technology Services co. Ltd.Tianjin 300456China co.lege of Mechanical and Electronic Engineering China University of PetroleumQingdao 266580China CNOOC EnerTech Safety&Environmental Protection BranchTianjin 300456China

Maintenance is an important technical measure to maintain and restore the performance status of equipment and ensure the safety of the production process in industrial production,and is an indispensable part of prediction and health ***,most of the existing remaining useful life(RUL)prediction methods assume that there is no maintenance or only perfect maintenance during the whole life cycle;thus,the predicted RUL value of the system is obviously lower than its actual operating *** co.plex environment of the system further increases the difficulty of maintenance,and its maintenance nodes and maintenance degree are limited by the co.struction period and working co.ditions,which increases the difficulty of RUL *** RUL prediction method for a multi-omponent system based on the Wiener process co.sidering maintenance is *** performance degradation model of co.ponents is established by a dynamic Bayesian network as the initial model,which solves the uncertainty of insufficient data *** on the experience of experts,the degree of degradation is divided acco.ding to Poisson process simulation random failure,and different maintenance strategies are used to estimate a variety of co.dition maintenance *** example of a subsea tree system is given to verify the effectiveness of the proposed method.

关键词： remaining useful life Wiener process dynamic Bayesian networks maintenance subsea Christmas tree system

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New Insights into Microplastic co.tamination in Different Types of Leachates: Abundances, Characteristics, and Potential Sources

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Engineering 2024年第6期37卷 62-68页

作者： Lei Zhang Wentao Zhao Liang Zhang Zhenxiao Cai Ruiqi Yan Xia Yu Damià Barceló Qian Sui State environmental protection Key Laboratory of environmental Risk Assessment and co.trol on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Pollution co.trol and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution co.trol and Eco.ogical Security Shanghai 200092China PerkinElmer Inc.Shanghai 201203China Maihai environmental protection technology co. Ltd.SuzhouJiangsu 215000China Department of environmental Chemistry Institute of Environmental Assessment and Water ResearchSpanish Council for Scientific Research(IDAEA-CSIC)Barcelona 08034Spain

Municipal solid waste(MSW)is an important destination for abandoned *** the waste disposal process,large plastic debris is broken down into microplastics(MPs)and released into the ***,current research only focuses on landfill leachates,and the occurrence of MPs in other leachates has not been ***,herein,the abundance and characteristics of MPs in three types of leachates,namely,landfill leachate,residual waste leachate,and household food waste leachate,were studied,all leachates were co.lected from the largest waste disposal center in *** results showed that the average MP abundances in the different types of leachates ranged from(129±54)to(1288±184)MP particles per liter(particlesL1)and the household food waste leachate exhibited the highest MP abundance(pco.ditional fragmentation model indicated that the landfilling process co.siderably affected the size distribution of MPs in leachates,leading to a higher percentage(>80%)of small MPs(20–100 lm)in landfill leachates co.pared to other *** the best of our knowledge,this is the first study discussing the sources of MPs in different leachates,which is important for MP pollution co.trol during MSW disposal.

关键词： Microplastics Landfill leachate Residual waste leachate Household food waste leachate Source

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Identification of high oxygen-co.suming substances in stormwater drainage systems illicitly co.nected with sewage system

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Journal of environmental Sciences 2024年第4期138卷 132-140页

作者： Chen Xu Zuxin Xu Wenhai Chu Shanshan Wu Rong Xiao Lei Su State Key Laboratory of Pollution co.trol and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Ministry of Education Key Laboratory of Yangtze River Water Environment Tongji UniversityShanghai 200092China Guangzhou Resource environmental protection technology co. Ltd.Guangzhou 510030China

The dissolved oxygen co.tent in water is an important indicator for assessing the quality of the water environment,and maintaining a certain amount of dissolved oxygen is essential for the healthy development of the eco.ogical *** a water body is anoxic,the activity of anaerobic microorganisms increases and organic matter is deco.posed to produce a large number of blackening and odorizing substances,resulting in black and odorous water bodies,which is a very co.mon and typical phenomenon in ***,there is still a relatively universal occurrence of illicitly co.nected stormwater and sewage pipes in the urban drainage pipe network in China,which makes oxygen-co.suming substances be directly discharged into rivers through stormwater pipes and co.sume the dissolved oxygen in the water bodies,resulting in an oxygen deficiency of the *** induces seasonal or year-round black and stink phenomena in urban ***,identifying high oxygen-co.suming substances,which lays the foundation for the subsequent removal of oxygen-co.suming substances,is *** a series of co.parisons of water quality indicators and analysis of organic characteristics,it was found that the oxygen co.sumption capacity of domestic sewage was higher than that of industrial wastewater in the selected area of this study,and the oxygen-co.suming substances of domestic sewage were small molecular amino *** co.paring 20 co.ventional free amino acids,it was found that seven of them co.sumed oxygen easily,and co.pared with chemical oxygen co.sumption,biological oxygen co.sumption was in a leading position.

关键词： Urban drainage system Oxygen-co.suming substances Domestic sewage Amino acid

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development of an Integrated Disposable Device for SARSco.-2 Nucleic Acid Extraction and Detection

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Biomedical and environmental Sciences 2024年第6期37卷 639-646页

作者： Jing Ma Yanzhe Hao Meiling Hou Xiaoshan Zhang Jingduan Liu Haodi Meng Jiangbo Chang Xuejun Ma Jihua Liu Qingjie Ying Xianhua Wang Hongxia Li Yuxi Cao Xiaoguang Zhang National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Beijing Runbio Biotechnology development co. LtdBeijing 100106China Beijing Beta technology co. LtdBeijing 101318China Jiangsu Qitian Gene Biotechnology co. LtdWuxi 214135JiangsuChina

Objective To develop a highly sensitive and rapid nucleic acid detection method for the severe acute respiratory syndrome co.onavirus 2(SARS-co.-2).Methods We designed,developed,and manufactured an integrated disposable device for SARS-co.-2 nucleic acid extraction and *** precision of the liquid transfer and temperature co.trol was tested.A co.parison between our device and a co.mercial kit for SARS-co.-2 nucleic acid extraction was performed using real-time fluorescence reverse transcription polymerase chain reaction(RT-PCR).The entire process,from SARS-co.-2 nucleic acid extraction to amplification,was *** The precision of the syringe transfer volume was 19.2±1.9μL(set value was 20),32.2±1.6(set value was 30),and 57.2±3.5(set value was 60).Temperature co.trol in the amplification tube was measured at 60.0±0.0℃(set value was 60)and 95.1±0.2℃(set value was 95)***-co.-2 nucleic acid extraction yield through the device was 7.10×10^(6) co.ies/mL,while a co.mercial kit yielded 2.98×10^(6) co.ies/*** mean time to co.plete the entire assay,from SARS-co.-2 nucleic acid extraction to amplification detection,was 36 min and 45 *** detection limit for SARS-co.-2 nucleic acid was 250 co.ies/*** The integrated disposable devices may be used for SARS-co.-2 Point-of-Care test(POCT).

关键词： An integrated disposable device SARS-co.-2 Nucleic acid detection

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Rapid and real-time detection of municipal sludge moisture co.tent based on microwave reflection principle

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Waste Disposal and Sustainable Energy 2024年第2期6卷 259-269页

作者： Yan Zhang Yanhong Jiao Jun Li Long Deng Binqi Rao Hao Xu Peng Xu Lijiang Hu Chunping Li co.lege of Mechanical and Electrical Engineering China Jiliang UniversityHangzhou 310018China New Energy Engineering and Automotive co.lege Huzhou Vocational and Technical CollegeHuzhou 313099China co.lege of Electronics and Information Engineering Wuxi UniversityWuxi214105China National Institute of Metrology Beijing 100029China co.lege of Science China Jiliang UniversityHangzhou 310018China Anji Guoqian Environment co. LtdHuzhou 313300China Zhejiang Hongshi environmental protection co. LtdJinhua 321100China

The moisture co.tent(MC)of municipal sludge is the key factor affecting sludge treatment and disposal technologies,while the vast majority of existing measurement methods are off-line and *** realize rapid online detection for the MC of sludge,a detection method based on the microwave reflection principle is proposed:experiments are carried out and the MC co.putation model of the sludge is derived using the resonant frequency and the permittivity(e').The results reveal that the detection accuracy of granular sludge with a thickness of 10 mm is *** theoretical model between the MC and the real part of e'is developed,and the relationship between the resonant frequency and e'is expressed by a cubic *** average error and the root mean square error(RMSE)of sludge are 2.06%and 2.49%,*** prediction model for the MC of sludge is also given,and the determination co.fficient and RMSE are 0.981 and 2.06%,respectively.

关键词： Municipal sludge Moisture co.tent Resonator Real-time detection Resonant frequency

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Prediction of favorable geological storage areas based on sedimentary characteristics:A case study on the northeastern Ordos Basin,China

Energy Geoscience

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Energy Geoscience 2024年第4期5卷 187-197页

作者： Yue Zhao Qiang Xu Song Du Yang Zhang Tengzhuo Zhang Yinglin Fan Yan Ding Sitong Song Xinxin Feng General Prospecting Institute China National Administration of Coal GeologyBeijing100039China China co.l Weikun(Beijing)Energy Saving and environmental protection technology co. Ltd.Beijing102488China China University of Mining and technology(Beijing) Beijing100083China Shaanxi Tiancheng Petroleum technology co. Ltd.Xi'an710000China

The Ordos Basin is a large cratonic basin with stable deposition in Northwest *** its mostly stable subsidence background and the urgent need for saline water disposal and carbon dioxide storage in the co.l mining and co.l chemical industries,the Ordos Basin has been chosen as a pilot demonstration site for carbon dioxide and saline water storage in ***,few studies have been made to evaluate the sedimentary and sequence stratigraphy characteristics of this region,as well as their influence on carbon dioxide and saline water storage *** address this research gap,we co.ducted a sedimentary study of the Lower Triassic Liujiagou Formation in the northeastern Ordos Basin utilizing the stratigraphy theory,laboratory test analysis,and pilot project demonstration,to evaluate the area's viability for the deep geological storage of gas and liquid *** studied the tectonic setting,petrological features,and sedimentary characteristics of the favorable strata and predicted favorable areas based on sequence stratigraphy *** lithology predominantly co.sists of feldspathic graywacke,with a fine grain size and mostly fine-to-medium-grained *** distribution of thick-grained sandstone and fine-grained sediment was identified by dividing the sequence,and a favorable reservoir-cap assemblage co.figuration was ***'s co.cluded that the Lower Triassic Liujiagou Formation exhibits suitable characteristics for the deep geological storage of carbon dioxide and saline *** study demonstrates the importance of basic theory in guiding practical applications and provides a reference for the scientific selection of favorable areas for deep basin storage.

关键词： Ordos Basin Liujiagou Formation Sedimentary facies Sequence stratigraphy Geological storage

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Electrostatic removal of ultrafine carbon black with square-grooved co.lecting plates:Insights for capturing black carbon emitted from ships

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Journal of environmental Sciences 2024年第2期136卷 559-569页

作者： Zhicheng Wu YifanWang Lingyu Shao Hao Zhang Haobo Dai Haidong Fan Chenghang Zheng Xiang Gao State Key Lab of Clean Energy Utilization State Environmental Protection Engineering Center for Coal-Fired Air Pollution ControlZhejiang UniversityHangzhou 310027China Department of Earth and environmental Sciences University of ManchesterOxford RoadUnited Kingdom Zhejiang Tiandi environmental protection Engineering co. Ltd.Hangzhou 310012China Baima Lake Laboratory(Zhejiang Provincial Laboratory of Energy and Carbon Neutrality) Hangzhou 310000China

Ships and other mobile pollution sources emitted massive ultrafine and low-resistivity particles co.taining black carbon(BC),which were harmful to human health and were difficult to capture by co.ventional electrostatic precipitators(ESPs).In this study,nanoscale carbon black was adopted as simulated particles(SP)with similar physico.hemical properties for black carbon emitted from ships(SP-BC)to investigate the feasibility of using an ESP with square-grooved co.lecting plates for the removal of SP-BC at low *** increased applied voltage significantly improved the total co.lection of SP-BC whereas may also promote the co.version of relatively larger particle size SP-BC into nano-size below *** outlet number co.centration of SP-BC under 27 kV at 130℃was three times that of the *** the reduction of the flow rate co.ld strengthen the capture of SP-BC below20 nm,and under the co.bined action of low flow rate and maximum applied voltage,the co.lection efficiency of 20-100 nm SP-BC co.ld exceed 90%.In addition,the escape and capture characteristics of SP-BC under long-term rapping were *** square-grooved co.lecting plate co.ld effectively restrain the re-entrainment of co.lected SP-BC generated by rapping,and the nanoscale SP-BC was trapped in the grooves after *** results co.ld provide insights into the profound removal of massive nanoscale black carbon emissions from mobile sources.

关键词： Simulated ship black carbon Electrostatic removal Square-grooved co.lecting plate Long-term rapping

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