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Bio-removal of mixture of benzene,toluene,ethylbenzene,and xylenes/total petroleum hydrocarbons/trichloroethylene from contaminated water

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Journal of Environmental Sciences 2009年第6期21卷 758-763页

作者： SHIM Hojae MA Wei lin aijun CHAN Kaicho Department of Civil and Environmental Engineering Faculty of Science and Technology University of Macao Macao SAR China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Four pure cultures were isolated from soil samples potentially contaminated with gasoline compounds either at a construction site near a gas station in Fai Chi Kei,Macao SAR or in the northern parts of China（Beijing,and Hebei and Shandong）.The effects of different concentrations of benzene,toluene,ethylbenzene,and three isomers（ortho-,meta-,and para-） of xylene（BTEX）,total petroleum hydrocarbons（TPH）,and trichloroethylene（TCE）,when they were present in mixtures,on the bio-removal effciencies of microbial isolates were investigated,together with their interactions during the bio-removal *** the isolates were tested for the BTEX（50-350 mg/L）/TPH（2000 mg/L） mixture,BTEoX in BTEoX/TPH mixture was shown with higher bio-removal effciencies,while BTEmX in BTEmX/TPH mixture was shown with the lowest,regardless of *** TPH in BTEmX/TPH mixture,on the other hand,were generally shown with higher bio-removal effciencies compared to when TPH mixed with BTEoX and *** these BTEX mixtures（at 350 mg/L） were present with TCE（5-50 mg/L）,the stimulatory effect of TCE toward BTEoX bio-removal was observed for BTEoX/TCE mixture,while the inhibitory effect of TCE toward BTEmX for BTEmX/TCE *** bio-removal effciency for TPH was shown lower in TPH（2000 mg/L）/TCE（5-50 mg/L） mixtures compared to TPH present alone,implying the inhibitory effect of TCE toward TPH *** the mixture of BTEX（417 mg/L）,TPH（2000 mg/L） along with TCE（5- 50 mg/L）,TCE was shown co-metabolically removed more effciently at 15 mg/L,probably utilizing BTEX and/or TPH as primary substrates.

关键词： bio-removal benzene, toluene, ethylbenzene, and xylenes (BTEX) co-metabolism trichloroethylene total petroleumhydrocarbons

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Evaluation of genotoxicity of combined soil pollution by cadmium and imidacloprid

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Science China(Life Sciences) 2005年第Z1期48卷 7-13页

作者： lin aijun ZHU Yongguan TONG Yiping Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Cadmium (Cd) is one of the important pollutants of soil and the genotoxicity of Cd-contaminated soil was studied in combination with imidacloprid. The single cell gel electro-phoresis or comet assay was used to quantify DNA strand breaks as a measure of DNA damage induced by Cd and imidacloprid contamination in soil. The soil was artificially contaminated by Cd (0.0, 0.2, 0.5, 1.0, 2.0 mg·kg-1 dry soil) or Cd (0.0, 0.2, 0.5, 1.0, 2.0 mg·kg-1 dry soil) and imidacloprid (0.5 mg-kg^1 dry soil). Roots of Vicia faba were exposed to the contaminated soil for 2 h at 25℃ and were used in the comet assay. DNA damage was measured as the values of percentage of nuclei with tails, tail length, tail DNA, tail moment (TM), and Olive tail moment (OTM). DNA damages of root tips of Vicia faba increased after Cd treatment and there were dose-related increases in DNA damage measured as these parameters. However, the addition of imidacloprid further increased the DNA damage. These data confirmed the genotoxic effect of Cd to plants, and that the combined pollution with imidacloprid can enhance the genotoxicity of Cd.

关键词： atrazine, imidacloprid, mixture pollution, genotoxicity, comet assay.

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Palladium-catalyzed asymmetric carbamoyl-carbonylation of alkenes

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Science China Chemistry 2021年第8期64卷 1367-1371页

作者： Ziwen Feng Qiuyu Li Long Chen Hequan Yao aijun lin State Key Laboratory of Natural Medicines(SKLNM)and Department of Medicinal Chemistry School of PharmacyChina Pharmaceutical UniversityNanjing210009China

An unprecedented palladium-catalyzed asymmetric carbamoyl-carbonylation of tethered alkenes with CO and alcohols has been *** reaction provided an efficient route to access oxindoles andγ-lactams bearingβ-carbonyl substituted quaternary carbons in good yields with excellent chemo-,regio-and ***-scale synthetic capability and facile transformations of the products to chiral spirooxindole and other functional molecules further illustrated the practicability of this reaction.

关键词： carbonylation oxindoles γ-lactams asymmetric catalytic synthesis quaternary carbon stereocenters

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Life cycle assessment on the environmental impacts of different pig manure management techniques

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International Journal of Agricultural and Biological Engineering 2022年第3期15卷 78-84页

作者： Baocheng Dong Chengjun Song Huibin Li aijun lin Jiuchen Wang Wei Li School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China Comprehensive Laboratory for Resource Recycling Technology and Model of the Ministry of Agriculture and Rural Affairs Rural Energy and Environment AgencyBeijing 100125China School of Chemical Engineering and Technology Beijing University of Chemical TechnologyBeijing 100029China

The management of livestock waste is an effective way to achieve emission reduction and carbon fixation in agriculture and rural *** present,aerobic composting and anaerobic fermentation are widely used in livestock waste treatment *** this study,pig manure management was taken as an example,a comprehensive environmental load index was constructed to quantitatively evaluate the environmental impacts of global warming,environmental acidification,eutrophication,and photochemical ozone synthesis during aerobic composting and anaerobic fermentation based on the life cycle *** results showed that the potential values of aerobic composting and anaerobic fermentation were similar,and the order was global warming,environmental acidification,eutrophication,and photochemical ozone *** fermentation contributed more to global warming,while aerobic composting contributed more to environmental acidification,eutrophication,and photochemical ozone *** addition,the environmental load index of aerobic composting was significantly higher than that of anaerobic *** were certainly regional differences in the environmental load index,and the environmental impact effect of anaerobic fermentation was low and more environmentally *** findings provided a technical basis for livestock manure management in different regions of China,which was conducive to promoting animal husbandry emission reduction and carbon sequestration.

关键词： manure management life cycle assessment low carbon treatment aerobic composting anaerobic fermentation environmental impact assessment emission reduction and carbon sequestration

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Site-Selective Palladium-Catalyzed 1,1-Arylamination of Terminal Alkenes

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CCS Chemistry 2022年第2期4卷 616-624页

作者： Chunhua Han Libo Cai Dongquan Zhang Rui Pan Qiuyu Li aijun lin Hequan Yao State Key Laboratory of Natural Medicines(SKLNM) Department of Medicinal ChemistrySchool of PharmacyChina Pharmaceutical UniversityNanjing 210009

Many of the commonly used pharmaceuticals and biologically active natural products are nitrogencontaining ***,the transitionmetal-catalyzed or the radical-mediated 1,2-carboamination of alkenes has been well explored to access amine ***,synthetic strategies toward the 1,1-carboamination of alkenes are severely ***,we describe a method to achieve the 1,1-arylamination using readily available building blocks enabled by palladium *** sequential three step-Heck arylation,metal migration,followed by aza-1,6-Micheal addition process exhibits excellent chemo-and *** showcase the potential as a method for diversity-oriented drug discovery,the modification of numerous structurally complex bioactive molecules was also successfully performed.

关键词： alkene 1,1-arylamination palladium-catalyzed site-selective nitrogen-containing molecules

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Economic Analysis Study of Agricultural and Solar Complementary System

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Asian Agricultural Research 2024年第11期16卷 18-19,24页

作者： aijun lin Junwen TANG Zhejiang Huadong Engineering Consulting Co. LtdHangzhou 310030China

Agro-photovoltaic complementary system(APCS)is an innovative land use model combining agricultural production with photovoltaic power generation,aiming to realize dual land use and improve land use efficiency and economic benefits by installing photovoltaic panels on *** the growth of global energy demand and the intensification of climate change,agro-photovoltaic(APV)systems have received widespread attention as a sustainable energy *** have shown that agro-photovoltaic systems exhibit significant economic benefits in different regions and crop *** reasonable system design and optimization,the agricultural and photovoltaic complementary system is not only technically feasible,but also has significant economic advantages,which provides a strong support for achieving the goal of sustainable development.

关键词： Agricultural and photovoltaic complementary systems Economic analysis Land use efficiency Cost-effectiveness

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Design and Optimization of Solar Photovoltaic Brackets in Mountainous Areas Adapted to Complex Wind Environments

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Asian Agricultural Research 2024年第12期16卷 22-25页

作者： aijun lin Junwen TANG Zhejiang Huadong Engineering Consulting Co. Ltd.Hangzhou 310030China

With the increasing global demand for renewable energy,the application of photovoltaic power generation in mountainous areas is gradually ***,the complex wind environment in mountainous areas poses severe challenges to the design and optimization of solar photovoltaic *** design methods are difficult to cope with the changeable wind speed and direction in mountainous areas,resulting in structural instability or material *** have identified the key factors affecting wind response through parametric research and dynamic wind response analysis,so as to optimize the brackets design and improve its adaptability and stability in complex wind *** this paper,the complexity of wind speed,wind direction and turbulence characteristics in mountainous areas and their influence on brackets design are *** static and dynamic wind load analysis,the geometrical shape and material selection of the bracket are optimized to enhance its wind *** application of multi-objective optimization model and intelligent optimization algorithm provides an effective solution for the design of solar photovoltaic brackets,ensuring their safety and reliability in complex wind environments.

关键词： Solar photovoltaic brackets Complex wind environment Optimization design Intelligent optimization algorithm

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重金属污染土壤可持续原位修复:生物质基修复材料研究新进展

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环境工程学报 2019年第9期13卷 2025-2026页

作者：林爱军北京化工大学环境科学与工程系《环境工程学报》青年学术委员会

土壤重金属污染因具有隐蔽性、长期性、不可逆性和富集性等特点,已成为影响未来农业可持续发展和人体健康的环境问题之一。修复重金属污染土壤、恢复土壤原有功能已经成为国内外的研究热点。目前,电动修复、植物修复及化学淋洗技术等修... 详细信息

土壤重金属污染因具有隐蔽性、长期性、不可逆性和富集性等特点,已成为影响未来农业可持续发展和人体健康的环境问题之一。修复重金属污染土壤、恢复土壤原有功能已经成为国内外的研究热点。目前,电动修复、植物修复及化学淋洗技术等修复技术虽已成功运用,但依然存在成本高、修复周期长及二次污染等问题。

关键词：重金属污染土壤水热炭原位固化原位修复重金属固化修复材料生物质研究新进展

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Research and Analysis on Anti-corrosion of Mountain Photovoltaic Brackets

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Asian Agricultural Research 2024年第9期16卷 19-22页

作者： aijun lin Junwen TANG Yunnan Agricultural University Kunming 650201China

With the increasing global demand for renewable energy,solar photovoltaic power generation technology has been widely applied in China and even *** in mountainous areas,complex terrain resources are cleverly utilized in the construction of photovoltaic power stations,but this also brings severe challenges to the anti-corrosion of photovoltaic *** paper focuses on the anti-corrosion technology of mountain photovoltaic brackets,and deeply explores the influence of natural factors such as mountain climate,sandstorms,and precipitation on the corrosion of photovoltaic *** research results show that the key to improving anti-corrosion performance lies in the selection of bracket materials and optimization of coating *** comparing various anti-corrosion treatment methods such as hot-dip galvanizing,spray aluminum coating,and new anti-corrosion materials,it is found that nano coating technology exhibits excellent protective effects in corrosive *** study is of great significance for promoting the sustainable development of photovoltaic power generation,providing solid theoretical support and practical guidance for the anti-corrosion design of mountain photovoltaic power stations.

关键词： Mountain photovoltaic Bracket Corrosion Nano coating

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Discussion on the Soil and Water Conservation Model in Mountain Photovoltaic Power Generation Project

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Asian Agricultural Research 2024年第10期16卷 28-31,37页

作者： aijun lin Junwen TANG Zhejiang Huadong Engineering Consulting Co. Ltd.Hangzhou 310030China

In the context of rising global energy demand and increasing awareness of environmental protection,photovoltaic power generation,as a clean and renewable form of energy,has become increasingly important and has received widespread attention and application ***,during the construction and operation of mountain photovoltaic power generation projects,water and soil erosion has become a major challenge,which not only restricts the sustainable development process of the project,but also has a significant negative impact on the local ecological *** article deeply analyzes the multiple causes,extensive impacts and effective prevention and control strategies of water and soil erosion in mountain photovoltaic power generation *** results show that rainfall intensity,terrain slope,soil type and vegetation coverage are the four key factors leading to soil *** erosion not only causes a sharp decline in soil fertility,but also aggravates the problem of sediment deposition in rivers and reservoirs,and poses a direct threat to the stability and operating efficiency of photovoltaic *** order to deal with the above problems,this paper innovatively puts forward a series of soil and water conservation technologies,covering multiple dimensions such as engineering measures,plant measures,farming measures and temporary measures,and deeply discusses the application models and management strategies of these measures in key stages such as planning and design,construction,operation and *** specific case analysis,the successful practical experience of soil and water conservation is refined and summarized,and the key role of community cooperation,technical support and modern monitoring technology in preventing and controlling soil and water erosion is further *** article aims to achieve a win-win situation of ecological environment protection and energy development and utilization through scientific planning and

关键词： Mountain photovoltaic power generation Soil erosion Prevention and control measures Sustainable development

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