首页期刊导航|环境科学学报（英文版）
期刊信息/Journal information
环境科学学报（英文版）
环境科学学报（英文版）

刘东生

月刊

1001-0742

jesc@263.net; jesc@rcees.ac.cn

010-62920553

100085

北京海淀区双清路18号（北京2871信箱）

环境科学学报（英文版）/Journal Journal of Environmental SciencesCSCDCSTPCD北大核心EISCI
查看更多>>Journal of Environmental Sciences是由中国科学院生态环境研究中心主办的中国第一份环境科学方面的综合性英文版学术期刊，是我国在环境科学研究领域与国际交流的窗口。自1989年创刊以来受到了国际环境科学界的关注，目前已有四十余个国内外检索机构收录本刊内容，其中包括美国科学引文文摘扩展版（SCIE/web Science）和EI。36位海外编委参与本刊编委会工作，目前该杂志由中国科学出版社和荷兰IOS出版社联合发行，订户遍及世界各主要国家。
正式出版
收录年代

    Plant-substrate biochar properties critical for mediating reductive debromination of 1,2-dibromoethane

    Jonathan H.LindhardtPeter E.HolmYong-Guan ZhuChangyong Lu...
    1-10页
    查看更多>>摘要：Dibromoethane is a widespread,persistent organic pollutant.Biochars are known mediators of reductive dehalogenation by layered FeⅡ-FeⅢ hydroxides(green rust),which can reduce 1,2-dibromoethane to innocuous bromide and ethylene.However,the critical characteris-tics that determine mediator functionality are lesser known.Fifteen biochar substrates were pyrolyzed at 600 ℃ and 800 ℃,characterized by elemental analysis,X-ray photo spectrom-etry C and N surface speciation,X-ray powder diffraction,specific surface area analysis,and tested for mediation of reductive debromination of 1,2-dibromoethane by a green rust reductant under anoxic conditions.A statistical analysis was performed to determine the biochar properties,critical for debromination kinetics and total debromination extent.It was shown that selected plant based biochars can mediate debromination of 1,2-dibromoethane,that the highest first order rate constant was 0.082/hr,and the highest debromination extent was 27％in reactivity experiments with 0.1 μmol(20 μmol/L)1,2-dibromoethane,≈ 22 mmol/L FeⅡGR,and 0.12 g/L soybean meal biochar(7 days).Contents of Ni,Zn,N,and P,and the relative contribution of quinone surface functional groups were significantly(p＜0.05)positively correlated with 1,2-dibromoethane debromination,while adsorption,specific surface area,and the relative contribution of pyridinic N oxide surface groups were significantly negatively correlated with debromination.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Mechanism of extracellular electron transport and reactive oxygen mediated Sb(Ⅲ)oxidation by Klebsiella aerogenes HC10

    Qun RongChaolan ZhangCaiyuan LingDingtian Lu...
    11-21页
    查看更多>>摘要：Microbial oxidation and the mechanism of Sb(Ⅲ)are key governing elements in biogeo-chemical cycling.A novel Sb oxidizing bacterium,Klebsiella aerogenes HC10,was attracted early and revealed that extracellular metabolites were the main fractions driving Sb ox-idation.However,linkages between the extracellular metabolite driven Sb oxidation pro-cess and mechanism remain elusive.Here,model phenolic and quinone compounds,i.e.,anthraquinone-2,6-disulfonate(AQDS)and hydroquinone(HYD),representing extracellular oxidants secreted by K.aerogenes HC10,were chosen to further study the Sb(Ⅲ)oxidation mechanism.N2 purging and free radical quenching showed that oxygen-induced oxidation accounted for 36.78％of Sb(Ⅲ)in the metabolite reaction system,while hydroxyl free rad-icals(·OH)accounted for 15.52％.·OH and H2O2 are the main driving factors for Sb oxida-tion.Radical quenching,methanol purification and electron paramagnetic resonance(EPR)analysis revealed that·OH,superoxide radical(O2·-)and semiquinone(SQ-·)were reactive intermediates of the phenolic induced oxidation process.Phenolic-induced ROS are one of the main oxidants in metabolites.Cyclic voltammetry(CV)showed that electron transfer of quinone also mediated Sb(Ⅲ)oxidation.Part of Sb(Ⅴ)was scavenged by the formation of the secondary Sb(Ⅴ)-bearing mineral mopungite[NaSb(OH)6]in the incubation system.Our study demonstrates the microbial role of oxidation detoxification and mineralization of Sb and provides scientific references for the biochemical remediation of Sb-contaminated soil.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    A review of functions and mechanisms of clay soil conditioners and catalysts in thermal remediation compared to emerging photo-thermal catalysis

    Juan ZhangShuo WangXin WangWentao Jiao...
    22-35页
    查看更多>>摘要：High temperatures and providing sufficient time for the thermal desorption of persistent organic pollutants(POPs)from contaminated clay soils can lead to intensive energy con-sumption.Therefore,this article provides a critical review of the potential additives which can improve soil texture and increase the volatility of POPs,and then discusses their en-hanced mechanisms for contributing to a green economy.Ca-based additives have been used to reduce plasticity of bentonite clay,absorb water and replenish system heat.In con-trast,non-Ca-based additives have been used to decrease the plasticity of kaolin clay.The soil structure and soil plasticity can be changed through cation exchange and flocculation processes.The transition metal oxides and alkali metal oxides can be applied to catalyze and oxidize polycyclic aromatic hydrocarbons,petroleum and emerging contaminants.In this system,reactive oxygen species(·O2-and·OH)are generated from thermal excitation with-out strong chemical oxidants.Moreover,multiple active ingredients in recycled solid wastes can be controlled to reduce soil plasticity and enhance thermal catalysis.Alternatively,the alkali,nano zero-valent iron and nano-TiN can catalyze hydrodechlorination of POPs under reductive conditions.Especially,photo and photo-thermal catalysis are discussed to accel-erate replacement of fossil fuels by renewable energy in thermal remediation.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Effect of lysozyme combined with hydrothermal pretreatment on excess sludge and anaerobic digestion

    Xiuqin CaoSongyue LiChaolei Liu
    36-49页
    查看更多>>摘要：Anaerobic digestion(AD)is widely employed for sludge stabilization and waste reduction.However,the slow hydrolysis process hinders methane production and leads to prolonged sludge issues.In this study,an efficient and eco-friendly lysozyme pre-treatment method was utilized to address these challenges.By optimizing lysozyme dosage,hydrolysis and cell lysis were maximized.Furthermore,lysozyme combined with hydrothermal pretreat-ment enhanced overall efficiency.Results indicate that:(1)When lysozyme dosage reached 90 mg/g TS after 240 min of pretreatment,SCOD,soluble polysaccharides,and protein con-tent reached their maxima at 855.00,44.09,and 204.86 mg/L,respectively.This represented an increase of 85.87％,365.58％,and 259.21％compared to the untreated sludge.Three-dimensional fluorescence spectroscopy revealed the highest fluorescence intensity in theⅣ region(soluble microbial product),promoting microbial metabolic activity.(2)Lysozyme combined with hydrothermal pretreatment significantly increased SCOD,soluble proteins,and polysaccharide release from sludge,reducing SCOD release time.Orthogonal experi-ments identified Group 3 as the most effective for SCOD and soluble polysaccharide re-lease,while Group 9 released the most soluble proteins.The significance order of factors influencing SCOD,soluble proteins,and polysaccharide release is hydrothermal tempera-ture＞hydrothermal time＞enzymatic digestion time.(3)The lysozyme-assisted hydrother-mal pretreatment group exhibited the fastest release and the highest SCOD concentration of 8,135.00 mg/L during anaerobic digestion.Maximum SCOD consumption and cumula-tive gas production increased by 95.89％and 130.58％,respectively,compared to the control group,allowing gas production to conclude 3 days earlier.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Development of a coupled model to simulate and assess arsenic contamination and impact factors in the Jinsha River Basin,China

    Yidian SunXu ZhangHong PengWenting Zhou...
    50-61页
    查看更多>>摘要：With the increasing severity of arsenic(As)pollution,quantifying the environmental be-havior of pollutant based on numerical model has become an important approach to deter-mine the potential impacts and finalize the precise control strategies.Taking the industrial-intensive Jinsha River Basin as typical area,a two-dimensional hydrodynamic water quality model coupled with Soil and Water Assessment Tool(SWAT)model was developed to accu-rately simulate the watershed-scale distribution and transport of As in the terrestrial and aquatic environment at high spatial and temporal resolution.The effects of hydro-climate change,hydropower station construction and non-point source emissions on As were quan-tified based on the coupled model.The result indicated that higher As concentration areas mainly centralized in urban districts and concentration slowly decreased from upstream to downstream.Due to the enhanced rainfall,the As concentration was significantly higher during the rainy season than the dry season.Hydro-climate change and the construction of hydropower station not only affected the dissolved As concentration,but also affected the adsorption and desorption of As in sediment.Furthermore,As concentration increased with the input of non-point source pollution,with the maximum increase about 30％,re-sulting that non-point sources contributed important pollutant impacts to waterways.The coupled model used in pollutant behavior analysis is general with high potential application to predict and mitigate water pollution.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Assessment of internal exposure risk from metals pollution of occupational and non-occupational populations around a non-ferrous metal smelting plant

    Yingjun WuMengdie QiHang YuGuiying Li...
    62-73页
    查看更多>>摘要：Non-ferrous metal smelting poses significant risks to public health.Specifically,the copper smelting process releases arsenic,a semi-volatile metalloid,which poses an emerging expo-sure risk to both workers and nearby residents.To comprehensively understand the inter-nal exposure risks of metal(loid)s from copper smelting,we explored eighteen metal(loid)s and arsenic metabolites in the urine of both occupational and non-occupational popula-tions using inductively coupled plasma mass spectrometry with high-performance liquid chromatography and compared their health risks.Results showed that zinc and copper(485.38 and 14.00 pg/L),and arsenic,lead,cadmium,vanadium,tin and antimony(46.80,6.82,2.17,0.40,0.44 and 0.23 pg/L,respectively)in workers(n=179)were significantly higher compared to controls(n=168),while Zinc,tin and antimony(412.10,0.51 and 0.15 pg/L,re-spectively)of residents were significantly higher than controls.Additionally,workers had a higher monomethyl arsenic percentage(MMA％),showing lower arsenic methylation ca-pacity.Source appointment analysis identified arsenic,lead,cadmium,antimony,tin and thallium as co-exposure metal(loid)s from copper smelting,positively relating to the age of workers.The hazard index(HI)of workers exceeded 1.0,while residents and control were approximately at 1.0.Besides,all three populations had accumulated cancer risks exceed-ing 1.0 × 10-4,and arsenite(AsⅢ)was the main contributor to the variation of workers and residents.Furthermore,residents living closer to the smelting plant had higher health risks.This study reveals arsenic exposure metabolites and multiple metals as emerging contam-inants for copper smelting exposure populations,providing valuable insights for pollution control in non-ferrous metal smelting.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Immobilization of laccase on magnetic PEGDA-CS inverse opal hydrogel for enhancement of bisphenol A degradation in aqueous solution

    Mei DuJingzhang LiuQiong WangFengbang Wang...
    74-82页
    查看更多>>摘要：Endocrine disruptors such as bisphenol A(BPA)adversely affect the environment and hu-man health.Laccases are used for the efficient biodegradation of various persistent or-ganic pollutants in an environmentally safe manner.However,the direct application of free laccases is generally hindered by short enzyme lifetimes,non-reusability,and the high cost of a single use.In this study,laccases were immobilized on a novel magnetic three-dimensional poly(ethylene glycol)diacrylate(PEGDA)-chitosan(CS)inverse opal hydrogel(LAC@MPEGDA@CS@IOH).The immobilized laccase showed significant improvement in the BPA degradation performance and superior storage stability compared with the free lac-case.91.1％of 100 mg/L BPA was removed by the LAC@MPEGDA@CS@IOH in 3 hr,whereas only 50.6％of BPA was removed by the same amount of the free laccase.Compared with the laccase,the outstanding BPA degradation efficiency of the LAC@MPEGDA@CS@IOH was maintained over a wider range of pH values and temperatures.Moreover,its relative activity of was maintained at 70.4％after 10 cycles,and the system performed well in actual water matrices.This efficient method for preparing immobilized laccases is simple and green,and it can be used to further develop ecofriendly biocatalysts to remove organic pollutants from wastewater.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Abiotic aerobic oxidation pathways of stibnite revealed by oxygen and sulfur isotope systematics of sulfate

    Ningjie HeShu LiXiaoqian LiYaning Tang...
    83-92页
    查看更多>>摘要：The environmental threat posed by stibnite is an important geoenvironmental issue of cur-rent concern.To better understand stibnite oxidation pathways,aerobic abiotic batch exper-iments were conducted in aqueous solution with varying δ18OH2O value at initial neutral pH for different lengths of time(15-300 days).The sulfate oxygen and sulfur isotope composi-tions as well as concentrations of sulfur and antimony species were determined.The sulfur isotope fractionation factor(Δ34SSO4-stibnite)values decreased from 0.8‰ to-2.1‰ during the first 90 days,and increased to 2.6‰ at the 180 days,indicating the dominated intermediate sulfur species such as S2O32-,S0,and H2S(g)involved in Sb2S3 oxidation processes.The in-corporation of O into sulfate derived from O2(～100％)indicated that the dissociated O2 was only directly adsorbed on the stibnite-S sites in the initial stage(0-90 days).The proportion of O incorporation into sulfate from water(27％-52％)increased in the late stage(90-300 days),which suggested the oxidation mechanism changed to hydroxyl attack on stibnite-S sites promoted by nearby adsorbed O2 on stibnite-Sb sites.The exchange of oxygen between sul-fite and water may also contributed to the increase of water derived O into SO42-.The new insight of stibnite oxidation pathway contributes to the understanding of sulfide oxidation mechanism and helps to interpret field data.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Soil colloids can significantly enhance spreading of polybromodiphenyl ethers in groundwater by serving as an effective carrier

    Lin DuanMin LiJiameng LiuWei Chen...
    93-100页
    查看更多>>摘要：Polybromodiphenyl ethers(PBDEs),the widely used flame retardants,are common contam-inants in surface soils at e-waste recycling sites.The association of PBDEs with soil colloids has been observed,indicating the potential risk to groundwater due to colloid-facilitated transport.However,the extent to which soil colloids may enhance the spreading of PBDEs in groundwater is largely unknown.Herein,we report the co-transport of decabromodiphenyl ester(BDE-209)and soil colloids in saturated porous media.The colloids released from a soil sample collected at an e-waste recycling site in Tianjin,China,contain high concentration of PBDEs,with BDE-209 being the most abundant conger(320±30 mg/kg).The colloids exhibit relatively high mobility in saturated sand columns,under conditions commonly observed in groundwater environments.Notably,under all the tested conditions(i.e.,varying flow ve-locity,pH,ionic species and ionic strength),the mass of eluted BDE-209 correlates linearly with that of eluted soil colloids,even though the mobility of the colloids varies markedly depending on the specific hydrodynamic and solution chemistry conditions involved.Addi-tionally,the mass of BDE-209 retained in the columns also correlates strongly with the mass of retained colloids.Apparently,the PBDEs remain bound to soil colloids during transport in porous media.Findings in this study indicate that soil colloids may significantly promote the transport of PBDEs in groundwater by serving as an effective carrier.This might be the reason why the highly insoluble and adsorptive PBDEs are found in groundwater at some PBDE-contaminated sites.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Adsorption of typical NDMA precursors by superfine powdered activated carbon:Critical role of particle size reduction

    Ying WangZhichen ZhangZhihang YinJun Wang...
    101-113页
    查看更多>>摘要：Control of N-nitrosodimethylamine(NDMA)in drinking water could be achieved by remov-ing its precursors as one practical way.Herein,superfine powdered activated carbons with a diameter of about 1 μm(SPACs)were successfully prepared by grinding powdered activated carbon(PAC,D50=24.3 μm)and applied to remove model NDMA precursors,i.e.ranitidine(RAN)and nizatidine(NIZ).Results from grain diameter experiments demonstrated that the absorption velocity increased dramatically with decreasing particle size,and the maximum increase in k2 was 26.8-folds for RAN and 33.4-folds for NIZ.Moreover,kinetic experiments explained that rapid absorption could be attributed to the acceleration of intraparticle dif-fusion due to the shortening of the diffusion path.Furthermore,performance comparison experiments suggested that the removal of RAN and NIZ(C0=0.5 mg/L)could reach 61.3％and 60％,respectively,within 5 min,when the dosage of SAPC-1.1(D50=1.1 μm)was merely 5 mg/L,while PAC-24.3 could only eliminate 17.5％and 18.6％.The adsorption isotherm was well defined by Langmuir isotherm model,indicating that the adsorption of RAN/NIZ was a monolayer coverage process.The adsorption of RAN or NIZ by SAPC-1.1 and PAC-24.3 was strongly pH dependent,and high adsorption capacity could be observed under the condition of pH＞pka+1.The coexistence of humic acid(HA)had no significant effect on the adsorp-tion performance because RAN/NIZ may be coupled with HA and removed simultaneously.The coexistence of anions had little effect on the adsorption also.This study is expected to provide an alternative strategy for drinking water safety triggered by NDMA.
      原文链接:
    • NETL
    • NSTL
    • 万方数据