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Chinese Journal Of Geochemistry 2009年第1期28卷 105-111页

作者： teng yanguo Key Laboratory of Water and Sediment College of Water Sciences Ministry of Education Beijing Normal University Beijing 100875 China

Vanadium is a trace element, which may be biologically beneficial and possibly essential but certainly harmful to human beings and some living organisms if excessive. After over 40 years of development, the mining industry has caused serious environmental problems in the Panzhihua mining area. Vanadium is significantly accumulated in the soil of the Panzhihua area. Human activities have intensified the pollution and release of vanadium and caused serious damages to the ecological system there. In the past few years, the authors have made investigations into and assessments on the geochemical distribution, chemical speciation, adsorption characteristics and transfer behavior of vanadium in the topsoil in the Panzhihua mining area. The results showed that: (1) the difference in the contents of vanadium in soil between premonsoon and monsoon is insignificant; (2) the adsorption isotherms of vanadium on soil in the Panzhihua mining area are well described by the Langmuir type; (3) the transfer ability of vanadium in soil is interrelated to soil properties; and (4) the chemical speciation of vanadium shows an order of insoluble residue > oxidizable=reducible > soluble component. According to the above results, some countermeasures to control pollution of vanadium in soil should be put forward.

关键词：富镉铅锌矿山环境影响地球化学特征

Water demand forecasting of Beijing using the Time Series Forecasting Method

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Journal of Geographical Sciences 2012年第5期22卷 919-932页

作者： ZHAI Yuanzheng WANG Jinsheng teng yanguo ZUO Rui College of Water Sciences Beijing Normal University Beijing 100875 China Engineering Research Center for Groundwater Pollution Control and Remediation Ministry of Education ofChina Beijing 100875 China

It is essential to establish the water resources exploitation and utiliz~~tion planning, which is mainly based on recognizing and forecasting the water consumed structure rationally and scientifically. During the past 30 years （1980-2009）, mean annual precipil：ation and total water resource of Beijing have decreased by 6.89% and 31.37% compared with those per- ennial values, respectively, while total water consumption during the same [：period reached pinnacle historically. Accordingly, it is of great significance for the harmony between socio-economic development and environmental development. Based on analyzing total water consumption, agricultural, industrial, domestic and environmental water consumption, and evolution of water consumed structure, further driving forces of evolution of total water consumption and water consumed structure are revealed systematically. Prediction and dis- cussion are achieved for evolution of total water consumption, water consumed structure, and supply-demand situation of water resource in the near future of Beijing using Time Series Forecasting Method. The purpose of the endeavor of this paper is to provide scientific basis for the harmonious development between socio-economy and water resources, for the es- tablishment of rational strategic planning of water resources, and for the social sustainable development of Beijing with scientific bases.

关键词： Beijing water consumed structure industrial structure water demand forecasting

Biogeography and diversity patterns of antibiotic resistome in the sediments of global lakes

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Journal of Environmental Sciences 2023年第5期127卷 421-430页

作者： Chang Liu Jinping Chen Yuyi Yang yanguo teng Haiyang Chen College of Water Sciences Beijing Normal UniversityBeijing 100875China Key Laboratory of Aquatic Botany and Watershed Ecology Wuhan Botanical GardenChinese Academy of SciencesWuhan 430074China Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of EducationBeijing 100875China

Lakes act as one of the reservoirs and dispersal routes of antibiotic resistance genes(ARGs)and pathogenic resistant bacteria in aquatic *** studies reported the occurrence and distribution of ARGs in lakes worldwide;however,few investigated the biogeography and diversity patterns of antibiotic resistome in the *** fill this gap,a large-scale data set of sediment metagenomes was collected from globally distributed lakes and characterized comprehensively using metagenomic assembly-based analysis,aiming to shed light on the biogeography and diversity patterns of ARGs in lake ecosystems from a global *** analyses showed that abundant and diverse ARGs were found in the global lake sediments,including a set of emerging ARGs such as mcr-type and carbapenem-resistant Enterobacteriaceae related *** of the identified ARGs were generally associated with the commonly used antibiotics,suggesting the role of increasing antibiotic consumptions on the resistome ***,the composition and diversity of ARGs varied across geographical distances and exhibited a scale-dependent distancedecay ***,the composition of ARGs was largely shaped by bacterial community structure,and their diversities were co-governed by stochastic process(∼48%)and deterministic process(∼52%).Findings provide a valuable insight to better understand ecological mechanisms of ARGs in lake ecosystems and have important implication for the prevention and control of resistome risk.

关键词： Antibiotic resistance genes Biogeography pattern Resistome diversity Ecological processes Metagenomic assembly-based analysis

Application of percarbonate and peroxymonocarbonate in decontamination technologies

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Journal of Environmental Sciences 2021年第7期33卷 100-115页

作者： Bo-Tao Zhang Lulu Kuang yanguo teng Maohong Fan Yan Ma College of Water Sciences Beijing Normal UniversityBeijing 100875China Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of EducationBeijing 100875China Department of Chemical and Petroleum Engineering University of WyomingLaramieWY 82071United States School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China

Sodium percarbonate(SPC)and peroxymonocarbonate(PMC)have been widely used in modified Fenton reactions because of their multiple superior features,such as a wide pH range and environmental *** broad review is intended to provide the fundamental information,status and progress of SPC and PMC based decontamination technologies according to the peer-reviewed papers in the last two *** SPC and PMC can directly decompose various *** degradation efficiency will be enhanced and the target contaminants will be expanded after the activation of SPC and *** most commonly used catalysts for SPC activation are iron compounds while cobalt composi-tions are applied to activate PMC in homogenous and heterogeneous catalytical *** generation and participation of hydroxyl,superoxide and/or carbonate radicals are involved in the activated SPC and PMC *** reductive radicals,such as carbon dioxide and hydroxyethyl radicals,can be generated when formic acid or methanol is added in the Fe(II)/SPC system,which can reduce target *** can also be activated by energy,tetraacetylethylenediamine,ozone and buffered alkaline to generate different reactive radicals for pollutant *** SPC and activated SPC have been assessed for application in-situ chemical oxidation and sludge dewatering *** challenges and prospects of SPC and PMC based decontamination technologies are also addressed in the last section.

关键词： Sodium percarbonate Peroxymonocarbonate Activation Radical Decontamination technologies

Comparison of the Catalytic Performances of Different Commercial Cobalt Oxides for Peroxymonosulfate Activation During Dye Degradation

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Chemical Research in Chinese Universities 2017年第5期33卷 822-827页

作者： ZHANG Botao ZHANG Yang XIANG Weixu teng yanguo WANG Ying College of Water Sciences Beijing Normal University Beijing 100875 P. R. China School of Environment Beijing Normal University Beijing 100875 P. R. China

The catalytic performances of different commercial cobalt oxides（CoxOy, i.e., Co2O3, Co3O4, and CoO） for peroxymonosulfate（PMS） activation in dye degradation were compared in this study. The CoO/PMS system exhibited the highest catalytic oxidation performances with more than 96% methylene bhie（MB） removal at 90 rain. The concentration of dissolved cobalt ions from CoO was 1.474 mg/L at neutral pH and 5.231 mg/L at acidic pH at 90 rain which accounted for the high MB removal and CoO activated PMS homogeneously compared to the associated CoSO4/PMS. Co304 and Co203 exhibited similar catalytic performances and characteristics. The MB removal in Co3OffPMS and Co203/PMS system were more than 88% at neutral pH and over 64% at acidic pH, respectively, in 90 rain. The concentration of dissolved cobalt ions from Co3O4 and Co2O3 was less than 0.018 mg/L at neutral pH and 0.036 mg/L at acidic pH at 90 rain. The MB removal achieved by Co3O4/PMS and Co2O3/PMS were approximately three time higher than that achieved by their associated CoSO4/PMS systems and the heterogeneous cataly played a principal role in the processes. According to scavenger experiments, the contributions of the hydroxyl radicals in the MB degradation were negligible compared to sulfate radicals in the CoO/PMS system, Hydroxyl radicals contributed one-third or more and sulfate radicals were the dominant oxidizing species in the Co3O4/PMS and Co20]PMS systems. COxOy could also effectively activate PMS to generate free radicals for degradation of other dyes. The dyedegradation processes in Co3O4/PMS, Co2O3/PMS and Co3O4/PMS systems followed pseudo-first-order kinetic model and dye degradation rates in different systems were also compared.

关键词： Cobalt oxide Peroxymonosulfate Dye Heterogeneous catalysis Degradation

Application of bacteria-plant association in bio-degradation of diesel oil pollutants in soil

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Chinese Journal Of Geochemistry 2011年第2期30卷 220-225页

作者： Lu, Sijin teng, yanguo Sun, Zongjian Wang, Jinsheng Key Laboratory of Water and Sediment College of Water Sciences Beijing Normal University Beijing 100875 China

The bacteria and plants were associated to remove diesel oil pollutants from *** efficiently degrading bacteria(named strains Q10,Q14 and Q18,respectively) were *** plants(alfalfa and Indian mustard) were selected to form the *** of diesel oil pollutants in soil was accelerated by bacteria-plants *** main results are summarized as *** plants-bacteria association was more effective in biodegradation of diesel oil pollutants in soil than in respective experiments carried out with plants or bacteria *** Q18-Indian mustard association resulted in the maximum diesel oil reduction(69.18%).The activities of catalase and polyphenol oxidase in soil were enhanced and microbial populations in soil,especially in rhizosphere,were also stimulated in the treatment of bacteria-plant ***,the soil conditions might be improved by alfalfa or Indian mustard to benefit the growth of bacteria,which resulted in degradation of diesel oil pollutants more effective by the bacteria-plant *** bacteria-plants association may be a better approach to the removal of diesel oil pollutants from soil.

关键词： bacteria-plant association biodegradation diesel oil pollutant soil

Research on the ecological risk of heavy metals in the soil around a Pb–Zn mine in the Huize County, China

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Chinese Journal Of Geochemistry 2015年第4期34卷 540-549页

作者： Sijin Lu yanguo teng Yeyao Wang Jing Wu Jinsheng Wang China National Environmental Monitoring Centre College of Water Sciences Beijing Normal University

The soil pollution by heavy metals was characterized in the mine tailings and surrounding soils of an old Pb–Zn mine in Huize County. Three hundred and ninety-six samples of agricultural and non-agricultural soil were analyzed for the total metal concentration by acid digestion and sixty-eight selected soil samples were used to determine the chemical fractionation of heavy metals with the modified BCR sequential extraction method. The pollution index of the heavy metals indices for As, Cd, Cr, Cu,Hg, Pb and Zn of non-agricultural soil and agricultural soils in the study area indicated the spreading of heavy metal pollution. Sequential extraction showed that most of Cd existed in an exchangeable form(31.2 %). The available content of Pb, Cu and Zn was mainly distributed in acid extractable fractions and Fe/Mn oxide fractions(27.9, 30 and 27.2 %), and Hg, As and Cr were mainly associated with residual fractions(90.4, 72.9 and 76.8 %). The risks of heavy metals were also evaluated by the risk assessment code(RAC) and potential ecological risk index, respectively. The results of RAC showed a medium and high risk of Cd(45.6 and 54.4 %), medium risk of Zn(100 %), low and medium risk of Cu(41.2 and 58.8 %), largely no risk of Hg(97.1 %), and mainly low risk of As and Pb(92.6and 91.8 %). The range of the potential ecological risk of soil was 58.2–1839.3, revealing a considerably high ecological risk in the study area, most likely related to acid mine drainage and the mining complexes located in the area. The results can be used during the ecological risk screening stage, in conjunction with the total concentrations and metal fractionation values, to better estimate ecological risk.

关键词：土壤重金属污染潜在生态风险铅锌矿山会泽县连续提取法农业土壤中国酸性矿山排水

Iron Isotope Compositions of Natural River and Lake Samples in the Karst Area,Guizhou Province,Southwest China

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Acta Geologica Sinica(English Edition) 2011年第3期85卷 712-722页

作者： SONG Liuting LIU Congqiang WANG Zhongliang ZHU Xiangkun teng yanguo WANG Jinsheng TANG Suohan LI Jin LIANG Lili College of Water Sciences Beijing Normal University Beijing 100875 China Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education Beijing 100875 China State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

To better understand the Fe isotope characteristics of natural samples in the Karst area,the Fe isotope compositions of riverine suspended particulates,lake suspended particulates,lake sediments,porewaters,phytoplanktons,and aerosols in the watersheds of Lake Aha（a mineralized water system）and Lake Hongfeng（a mesotrophic water system）,which are located in the Karst area, southwest China,were *** studied samples displayed a variable range betweenδ^（56）Fe=-2.03‰and 0.36‰.Aerosols and phytoplanktons have similar or slightly heavier Fe isotope compositions relative to the average of igneous *** isotope compositions of riverine Suspended Particulate Matter（SPM）were mainly affected by the types of *** particulates collected from tributaries seriously contaminated with coal mine drainages displayed negativeδ^（56）Fe values（-0.89‰to-0.31‰）during summer,and there were significant increases ofδ^（56）Fe values in winter,except AR2,which was polluted with both coal mine drainage and sewage effluent. Characteristics of lakes have important influences on Fe isotope compositions of suspended particulates,lake sediments,and *** epilimnetic particulate Fe of Lake Hongfeng hadδ^（56）Fe=-0.04‰to 0.13‰,while lighter Fe isotope compositions were measured for particulate Fe from Lake Aha,ranging from-0.42‰to-0.09‰.Sediments collected from Hou Wu（HW）station of Lake Hongfeng have an averageδ^（56）Fe value of 0.09‰and their corresponding porewaters have lighter Fe isotope compositions,ranging from-0.57‰to-0.31‰;no significant variations have been observed. For the Liang Jiang Kou（LJK）station of Lake Aha,the content of reactive Fe and the concentration of sulfate were all *** to the reactive Fe recycling,including dissimilatory Fe reduction,adsorption, and Fe-sulfide formation,porewaters sampled near the sediment surface have been found to have aδ^（56）Fe value as low as-2.03‰and an increase up to 0.12‰,with a burial depth of 10 *** contrast,a

关键词： Fe isotope composition karst riverine particulate lake particulate sediment porewater

New possibility for PET plastic recycling by a tailored hydrolytic enzyme

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Green Energy & Environment 2024年第2期9卷 163-165页

作者： Shijie Yu Qinghai Li yanguo Zhang Hui Zhou Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Beijing Key Laboratory of CO_(2)Utilization and Reduction TechnologyDepartment of Energy and Power EngineeringTsinghua UniversityBeijing 100084China

Plastic waste puts a huge burden on the ecosystem due to the current lack of mature recycling ***(ethylene terephthalate)(PET)is one of the most produced plastics in the *** decomposition holds the promise of recovering monomers from PET plastic,and the monomers can be used to regenerate new PET ***,there are still limitations in the activity and thermal stability of the existing PET *** recent study by Lu et *** a novel PET hydrolase via machine learning-aided *** obtained PET hydrolase showed excellent activity and thermal stability in the hydrolysis of PET and is capable of directly degrading large amounts of postconsumer PET *** approach provides an effective method for recycling PET waste and is expected to improve the current state of plastic pollution worldwide.

关键词： Plastic waste Poly(ethylene terephthalate) Hydrolysis Machine learning Enzymatic depolymerization Hydrolases

Selective hydrodeoxygenation of guaiacol to cyclohexanol using activated hydrochar-supported Ru catalysts

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Frontiers of Chemical Science and Engineering 2024年第5期18卷 13-22页

作者： Kaile Li Shijie Yu Qinghai Li yanguo Zhang Hui Zhou Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Beijing Key Laboratory of CO_(2) Utilization and Reduction TechnologyDepartment of Energy and Power EngineeringTsinghua UniversityBeijing 100084China Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore117585Singapore

Lignin,an abundant aromatic polymer in nature,has received significant attention for its potential in the production of bio-oils and chemicals owing to increased resource availability and environmental *** hydrodeoxygenation of guaiacol,a lignin-derived monomer,can produce cyclohexanol,a nylon precursor,in a carbon-negative and environmentally friendly *** study explored the porous properties and the effects of activation methods on the Ru-based catalyst supported by environmentally friendly and cost-effective *** selective cleavage of C_(ary)-O bonds was achieved under mild conditions(160°C,0.2 MPa H_(2),and 4 h),and alkali activation further improved the catalytic *** characterization methods revealedthat hydrothermal treatment and alkali activation relatively contributed to the excellent performance of the catalysts and influenced their porous structure and Ru dispersion.X-ray photoelectron spectroscopy results revealed an increased formation of metallic ruthenium,indicating the effective regulation of interaction between active sites and *** synergistic approach used in this study,involving the valorization of cellulose-derived hydrochar and the selective production of nylon precursors from lignin-derived guaiacol,indicated the comprehensive and sustainable utilization of biomass resources.

关键词： hydrochar guaiacol cyclohexanol activation full-component utilization