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water environment protection and sustainable development in townlet of China: A case study in Taicang

Journal of environmental Sciences 2021年第12期33卷 129-139页

作者： Wenli Zhou Mengmeng Liu Xu Shang Meixue Chen Guorong Wang Hui Zhong Junya Zhang Yuansong Wei Yan Yan Min Yang State Key Laboratory of environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Laboratory of water Pollution Control Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Suzhou water Supplies Bureau Suzhou 215011China

The environmental Kuznets Curve(EKC) model was applied to investigate the relationship between economic growth and water environment quality based on panel data of Taicang during 2010–2017. The typical inversed-U shaped relationship has been obtained between GDP(gross domestic product) and indicators of ammonia, total nitrogen(TN) and total phosphorus(TP), respectively. The EKC turning point appeared when the GDP per capita was around US$2270, which was much lower than those in some developed countries(US$11,200). However, the decoupling between chemical oxygen demand(COD) and GDP per capita occurred even before this period, which should be attributed to the strict COD emission regulation being implemented since 2010. Further, analysis based on the Tapio decoupling coefficient elasticity model analyzed the ammonia nitrogen and economic development of each industry. We found that the agriculture no-point was strong decoupling in 2011–2014, then came to Recessive decoupling. The domestic wastewater had been in a strong decoupling state;Both urban non-point and industry experienced expansive negative decoupling, due to strict policy that prioritizes the environment over development and the investment in improvement of environment and techniques, both of them gradually came to strong decoupling. The result demonstrated that the EKC turning point could be appear in earlier economic stage and the decoupling coefficient elasticity could be improved through taking strong regulation measures.

关键词： Sustainable urbanization water environment Taicang EKC Tapio decoupling

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Recent progress in photoelectrocatalysis of g-C3N4 for water environment remediation

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Progress in Natural Science:Materials International 2022年第5期32卷 538-553页

作者： Fenfen Liang Huifang Wang Ruoqi Yu Cheng Liu Yali Wang Lizhong Bai Chunli Hao Guodong Hao The Cultivation Base of Shanxi Key Laboratory of Mining Area Ecological Restoration and Solid Wastes Utilization Shanxi Institute of Technology Department of Materials Science and Engineering Shanxi Institute of Technology Mudanjiang Normal University

water environmental pollutants have become one of the most serious environmental issues, and the removal of various environmental pollution(dyes, phenols, pesticides, heavy metal ions, etc.) is of particular concern because of their toxicity and refractory. Compared to conventional eliminating routes, photoelectrocatalysis(PEC), is considered as a promising strategy since it combines the advantages of photocatalysis(PC) and electrocatalysis(EC). However, it still encounters bottlenecks of scarce reaction sites and low product selectivity, restricting its development toward practical applications. In recent years, various of g–C3N4–based composites were used for the remediation of these typical environmental pollutants. Given this situation, this review summarizes the latest progress in the design and preparation of novel g–C3N4–based composites and their PEC degradation different pollution in the water environment. Some removal mechanisms are briefly discussed, and the prospects are presented for further research.

关键词： Photoelectrocatalysis G-C 3 N 4 Pollutants removal water environment

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Influence of water environment on paint removal and the selection criteria of laser parameters

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Chinese Physics B 2022年第6期31卷 363-373页

作者： Li-Jun Zhang Kai-Nan Zhou Guo-Ying Feng Jing-Hua Han Na Xie Jing Xiao College of Electronics and Information Engineering Sichuan UniversityChengdu 610065China Laser Fusion Research Center China Academy of Engineering PhysicsMianyang 621999China Science and Technology on Plasma Physics Laboratory Mianyang 621999China Southwest Institute of Technical Physics Chengdu 610041China

Laser paint removal in a water environment does not diffuse ablation pollution products into *** of water,such as high specific heat and heat flux,generate different effects of the laser paint removal than in an air *** this study,the effects of air and water environments on the mechanism and effect of laser paint removal are analyzed and compared experimentally and *** air,thermodynamic ablation causes removal of paint,whereas in water,stress coupled with plasma shock waves cause tear and splash removal of paint layers after fracture and *** and pressure thresholds of the paint and substrate,respectively,indicate the optimum energy density range for laser paint removal in water,providing a reference for engineering applications.

关键词： paint removal by laser water environment thermal stress laser plasma

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URBANIZATION AND ITS IMPACTS ON water environment IN TUMEN RIVER BASIN

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Chinese Geographical Science 2002年第3期12卷 273-281页

作者： WANG Shi-jun,WANG Dan,YANG Xiang-h ua(College of Urban and environmental Sciences,Northeast Normal University,Changchun 130024,P.R.China) College of Urban and environmental Sciences Northeast Normal University Changchun P. R. China

The trans-boundary scope of the Tume n River Basin(TRB)going through China,Russia and DPRK has been defined,and on the basis of this,status of urbanization and its impacts on water environment in recent 20years in TRB have been *** n in TRB can be characterized as:1)There is medium level of overall urbanization in *** distance still exists compared with developed *** it is lower than the average urbanization level of Russia and higher than that o f China.2)There is unbalanced distribution of urbanization development in *** in China part owns the c haracter of low starting point and hi gh-speed *** Russia part,charac-ter of urbanization can be described as high starting point and stable *** DPRK part,urbanizatio n level is low,and motive power lacks.3)Due to large population,in China part there is broader region urbanized,larger radius and higher frequency of human activities,which lead to heavier pressure on ***,the paper has point-ed that impacts of urbanization on wa ter environment are as follows:1)Urban population growth and industr y develop-ment increase the demand for freshwa ter,and also exacerbate the contrad iction between limited water supply and increas-ing freshwater demand.2)Urban infrastructure doesn’t match with urban productive function especially treatment facili-ties,which results in the pollution of the Tumen River.3)The pollution situation in the Tumen River got peak point in1995,and presently,such situation has been improved in great scale,due to effective interventions ***,there still exist 2enterprises that are urgent to be ***,pollution of municipal sewage will become more and more apparent.4)The influence of urbanization on soil is mainly caused by industrial effl uent and slag,and pollut-ed water *** and water l oss has also been a serious problem caused by urbanization.5)Urbanization results in the decrease of wet

关键词： tumen river basin (TRB) urbanization water environment

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FATIGUE PROPERTIES OF AUSTEMPERED DUCTILE IRON(ADI)IN water environment

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Acta Metallurgica Sinica(English Letters) 2004年第2期17卷 122-130页

作者： Q.Z.Cai B.K.Wei Y.Tanaka StateKeyLabofPlasticFormingSimulation＆Dies／MouldTechnology FacultyofMaterialsScienceandEngineeringHuazhongUniversityofScienceandTechnologyWuhan430074China DepartmentofMechanicalSystemsEngineering MuroranInstituteofTechnologyMuroran050-8585Japan

The acicular ferrite in austempered ductile iron (ADI) matrix around graphite wascorroded preferentially in wet condition, promoting crack origination and propagationand resulting in the disappearance of ADI fatigue limit. ADI fatigue strength wasgradually reduced with increasing the time of test and was reduced by 50% in wetcondition at 10~7 cycles compared with the fatigue limit in dry condition. The fatiguestrength variation of ferritic ductile iron in wet condition was similar to that of ADI.The ferritic ductile iron, however, has better corrosion resistance so that the fatiguestrength was lowered only by 10% in wet condition at 10~7 cycles compared with thefatigue limit in dry condition. On the other hand, the fatigue limits of ADI and ferriticductile iron were dropped by 32% and 25% in tap water dipping 480h/dry conditionrespectively compared with those in dry condition. The reduction of fatigue limit wasattributed to corrosion pits formation correlated with stress concentration, resultingin origination and propagation of fatigue crack.

关键词： anstempered ductile iron water environment corrosion fatigue crack fatigue strength

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Roadmap for Managing SARS-CoV-2 and Other Viruses in the water environment for Public Health

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Engineering 2022年第5期8卷 139-144页

作者： Gang Liu Jiuhui Qu Joan Rose Gertjan Medema Key Laboratory of Drinking water Science and Technology Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Department of Fisheries and Wildlife Michigan State UniversityEast LansingMI 48823USA KWR water Research Institute Nieuwegein 3433 PENetherlands Sanitary Engineering Department of Water ManagementFaculty of Civil Engineering and GeosciencesDelft University of TechnologyDelft 2628 CNNetherlands

The water sector needs to address viral-related public health issues,because water is a virus carrier,which not only spreads viruses(e.g.,via drinking water),but also provides information about the circu-lation of viruses in the community(e.g.,via sewage).It has been widely reported that waterborne viral pathogens are abundant,diverse,complex,and threatening the public health in both developed and developing ***,there is great potential for viral monitoring that can indicate biosafety,treatment performance and community *** developments in technology have been rising to meet the emerging challenges over the past *** the current coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),the world’s attention is directed to the urgent need to tackle the most challenging public health issues related to waterborne *** on critical analysis of the water viral knowledge progresses and gaps,this article offers a roadmap for managing COVID-19 and other viruses in the water environments for ensur-ing public health.

关键词： Virus water environment Viral indicators Sewage surveillance Biosafety

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Characteristics of the main polluting trace elements in the water environment of mining subsidence pools

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Journal of China University of Mining and Technology 2008年第3期18卷 362-367页

作者： YAO En-qin GUI He-rong Department of Resources and Engineering Anhui University of Science and TechnologyHuainan Anhui 232001 China Suzhou College Suzhou Anhui 234000 China

Mining subsidence pools are water bodies formed by soil subsidence near mines. We studied the impact the surrounding coal production activities and power plants have on these waters by measuring the concentrations of harmful trace elements in these waters. The concentration of the four elements F, Hg, Se and As increased by 0.92%, 0.78%, 0.70% and 0.81%, respectively, in the Datong mining subsidence pool from November 2004 to November 2006. The four elements increased by 1.58%, 1.23%, 1.08% and 0.92%, respectively, in the Xie’er mining subsidence pool and 1.16%, 1.06%, 1.02% and 1.01%, respectively, in the Pansan mining subsidence pool over the same time period. The absolute levels of F, Hg, Se and As in the pool are related to the background levels of the elements. A close relationship between nearby coal mines and power plants and increasing levels of the measured elements is noted.

关键词： mining subsidence pool trace elements coal mine water environment

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Characteristics of water environment in Regions of Zhaling and Eling Lakes near waterhead of Yellow River

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Journal of China University of Geosciences 2001年第2期12卷 137-141页

作者： Cao Wenbing Wan Li Hu Fusheng Shen Zhaoli Department of water Resources and environmental Engineering, China University of Geosciences, Beijing 100083 Yan Weide Qinghai Exploring Institute of Hydrogeology and Engineering Geology, Ledu 810700 Department of water Resources and environmental Engineering China University of Geosciences Qinghai Exploring Institute of Hydrogeology and Engineering Geology

Conditions of the water environment in the region of the Zhaling and Eling lakes, which are located in the frozen earth zone on the Qingzang plateau, are unique. The equilibrium of the water quantity of the two lakes is maladjustment under the condition of a dry and cold climate in which evaporation is greater than precipitation. The Zhaling and Eling lakes have been atrophying, leaving three lake terraces and star studded lagoons around the two lakes since Holocene. When these lagoons were separated from the original lakes, they became cut lake basins, and were transformed from fresh water lakes into salt water lakes, salt lakes or salt playas owing to strong evaporation. This kind of evolutionary process will continue in the future.

关键词： water environment atrophy of lakes Zhaling and Eling lakes Qingzang plateau.

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Evaluating impervious surface growth and its impacts on water environment in Beijing- Tianjin-Tangshan Metropolitan Area

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Journal of Geographical Sciences 2012年第3期22卷 535-547页

作者： Wenhui Kuang Chinese Acad Sci Inst Geog Sci & Nat Resources Res Beijing 100101 Peoples R China

The impervious surface area （ISA） at the regional scale is one of the important environmental factors for examining the interaction and mechanism of Land Use/Cover Change （LUCC）-ecosystem processes-climate change under the interactions of urbanization and global environmental change. Timely and accurate extraction of ISA from remotely sensed data at the regional scale is challenging. This study explored the ISA extraction based on MODIS and DMSP-OLS data and the incorporation of China＇s land use/cover data. ISA datasets in Beijing-Tianjin-Tangshan Metropolitan Area （BTTMA） in 2000 and 2008 at a spatial resolution of 250 m were developed, their spatiotemporal changes were analyzed, and their impacts on water quality were then evaluated. The results indicated that ISA in BTTMA increased rapidly along urban fringe, transportation corridors and coastal belt both in intensity and extents from 2000 to 2008. Three cities （Tangshan, Langfang and Qinhuangdao） in Hebei Province had higher ISA growth rates than Beijing due to the pressure of population-resour- ces-environments in the city resulting in increasingly transferring industries to the nearby areas. The dense ISA distribution in BTTMA has serious impacts on water quality in the Haihe River watershed. Meanwhile, the proportion of ISA in sub-watersheds has significantly linear relationships with the densities of river COD and NH3-N.

关键词： Beijing-Tianjin-Tangshan Metropolitan Area impervious surface water environment urban areas remote sensing

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Constraint regionalization of water environment and the guidance for industrial layout： A case study of Jiangsu Province

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Journal of Geographical Sciences 2011年第5期21卷 937-948页

作者： SUN Wei CHEN Wen CHEN Cheng GAO Shuang GUO Yao Nanjing Institute of Geography & Limnology CAS Nanjing 210008 China

Along with the highly speedy development of economy and society in the developed area in China,with the sharp increase in the quantity of pollutant discharge such as agricultural fertilizers,industrial wastewater and domestic sewage,the water environment has been deteriorated continuously and then become a restricting factor to regional *** harmonizing the relationship between economic development and water environment,many countries have been attempting water environmental function zoning so as to provide a scientific basis for the basin ***,focusing mainly on water body,these researches ignored the spatial relation between water and land as well as the restricted function of water environment on regional industrial *** previous index system adapted only to the environmental genes but excluded the stress genes of socio-economic *** paper,thus,taking both the sensitivity and pressure of water environment into consideration,discusses the methods of constraint regionalization of water environment,including how to divide the assessed units,choose and manage the assessed ***,as a case study,Jiangsu Province is divided into four types of areas by the method of quadrant analysis,i.e.,high-pressure and high-sensitivity area （HP-HS Area）,high-pressure and low-sensitivity area （HP-LS Area）,low-pressure and high-sensitivity area （LP-HS Area） and low-pressure and low-sensitivity area （LP-LS Area）.Finally,this paper presents the schemes of industrial layout and the policy of industrial development direction respectively,which are very important bases for harmonizing the industrial development and the bearing capacity of water environment.

关键词： water environment constraint regionalization industrial layout Jiangsu Province

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