2011 International Symposium on Water Resource and Environmental Protection最新文献

Calculating precipitation recharge to groundwater applying envieronmental chloride tracer method 应用环境氯化物示踪法计算降水补给量

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-06-16 DOI: 10.1109/ISWREP.2011.5892965

Q. Yong, Zhang Zhaoji, Fei Yuhong, Zhang Feng’e, C. Jingsheng

引用次数: 2

Determination of vanadium(V) based on its ternary complex with 2-(8-quinolylazo)-4,5-diphenylimidazole and hydrogen peroxide by high performance liquid chromatography 高效液相色谱法测定2-(8-喹啉偶氮)-4,5-二苯咪唑和过氧化氢三元配合物中钒的含量

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-06-16 DOI: 10.1109/ISWREP.2011.5893600

Chengjie Zhang, Jing Liu, B. Yao, Luo-hong Zhang

{"title":"Determination of vanadium(V) based on its ternary complex with 2-(8-quinolylazo)-4,5-diphenylimidazole and hydrogen peroxide by high performance liquid chromatography","authors":"Chengjie Zhang, Jing Liu, B. Yao, Luo-hong Zhang","doi":"10.1109/ISWREP.2011.5893600","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893600","url":null,"abstract":"A method based on reversed-phase high performance liquid chromatographic separation in combination with spectrophotometric detection was developed for the determination of trace amounts of vanadium(V) as its ternary complex with 2-(8-quinolylazo)-4,5-diphenylimidazole (QAI) and hydrogen peroxide. Spectral and chromatographic behaviors of the ternary complex were investigated. The complex was formed in weekly acidic medium (pH 2.5-4.0) and separated on a Cosmosil 5C8-MS column with 58% (m/m) aqueous acetonitrile mobile phase containing 5.0 × 10-3 mol kg-1 acetate buffer (pH 3.5), 1.0 × 10-4 mol kg-1 tetrabutylammonium bromide and 1.0 × 10-3 mol kg-1 ethylenediaminetetraacetic acid and detected at 595 nm. The calibration curve was linear up to 35 ng for vanadium(V) in 25.0 mL of test solution at 0.001 absorbance unit full scale. The detection limit was 2 pg for vanadium(V) with 100 L injection. The method showed good accuracy, selectivity and sensitivity for the determination of vanadium(V) in environmental samples.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82039162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Bioremediation of β-cypermethrin and 3-phenoxybenzoic acid in soils β-氯氰菊酯和3-苯氧苯甲酸在土壤中的生物修复作用

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-06-16 DOI: 10.1109/ISWREP.2011.5893579

Shaohua Chen, Yanbo Zhang, M. Hu, P. Geng, Yanan Li, Guodong An

{"title":"Bioremediation of β-cypermethrin and 3-phenoxybenzoic acid in soils","authors":"Shaohua Chen, Yanbo Zhang, M. Hu, P. Geng, Yanan Li, Guodong An","doi":"10.1109/ISWREP.2011.5893579","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893579","url":null,"abstract":"β-cypermethrin (β-CP) is one of the most frequently and widely used kind of insecticides. Increasing use of β-CP has posed potential adverse effects on the environment; therefore, it is critically necessary to develop remediation strategies to remove β-CP from the environment. In this study, bioremediation efficiency of β-CP contaminated soils was assessed based on the results of laboratory experiment. The selected bacterium Achromobacter sp. strain P-01 was used to degrade β-CP and its major metabolite 3-phenoxybenzoic acid (3-PBA) in different soils. Studies on bioremediation in sterilized soil showed that strain P-01 exhibited efficient degradation of β-CP and 3-PBA (both 50 mg·kg-1) with a rate constant of 0.1857 and 0.1084 day-1, respectively. The degradation process followed the first-order kinetics and the half-life (T1/2) for β-CP and 3-PBA was 3.7 and 6.4 days, respectively. Studies on bioremediation in non-sterilized soil showed that degradation rates were 90.4% and 70.6% for β-CP and 3-PBA within 10 days after strain P-01 introduction, which was characterized by a constant of 0.3334 and 0.1341 day-1, respectively. Comparing with the control without inoculum, T1/2 for β-CP and 3-PBA reduced by 21.6-154.8 days. These results indicated that strain P-01 may have potential for use in bioremediation of β-CP contaminated environment.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88337004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Isotopic and pollen evidence of paleo-vegetation changes in loess plateau of Luochuan, China 洛川黄土高原古植被变化的同位素和花粉证据

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893428

Lu Yudong, Gu Jinyan, Sun Jianzhong, Ma Yuan, Han Mingchao, Li Yan, L. Hongjuan

{"title":"Isotopic and pollen evidence of paleo-vegetation changes in loess plateau of Luochuan, China","authors":"Lu Yudong, Gu Jinyan, Sun Jianzhong, Ma Yuan, Han Mingchao, Li Yan, L. Hongjuan","doi":"10.1109/ISWREP.2011.5893428","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893428","url":null,"abstract":"Carbon isotopes in loess through S0 to S11 at Luochuan section in Shanxi province, China were studied. The curve of δ13C compares well to that of the oxygen isotope in deep sea sediments from Deep Sea Drilling Project Site 607 drill hole. There is a negative peak of δ13C within S5 paleosol where the content of δ13C is -16.6150/00, shows that the climatic of that period is optimum, and the vegetation is likely forest. Compared with the pollen analysis, we conclude that the vegetation type of palesol S0,S1,S4,S8,S9, whose δ13C content is -5.85--10.000/00, is forest-grass. The d13C content of paleosol S2, S3, S6, S7 is -8.72~-6.950/00, and their vegetation is grass. The loess layer L1, L2, L5, L6, L8, L9 represent the severe cold-dry glacial period with the δ13C content of -3.7- -2.270/00, and their vegetation belongs to steppe-desert. The research of paleo-vegetation type is significant to anti-soil erosion in the loess plateau of China.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73459006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on the defluoridation thermodynamic and kinetics of the D401 version resin D401型树脂脱氟热力学和动力学研究

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893284

Dong Sui-ming, Lin Chun-xiao, Wu Shu-feng

引用次数: 0

Screening a novel high effective dioscorea zingiberensis degradation strain 一株高效薯蓣降解菌株的筛选

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893294

Yanjun Lu, Jifeng Guo

引用次数: 0

Characterization and bentonite amendment of oil contaminated soils 油污染土壤的表征及膨润土改性

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893611

Wen-Ting Wang, Chen-Hong Wu, Yun‐Hai Wang, Jinglian Zhao

引用次数: 0

Post-disaster assessment of northeastern coastal region for the 2011 Sendai Earthquake and tsunami 2011年仙台地震和海啸对东北沿海地区的灾后评估

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893759

Ruopu Li, Shishi Liu, Qingfeng Guan, Yi Peng

引用次数: 9

Application of Monte Carlo sampling and Latin Hypercube sampling methods in pumping schedule design during establishing surrogate model 建立代理模型时蒙特卡罗抽样和拉丁超立方抽样方法在抽油计划设计中的应用

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5892983

Yin Jinhang, Lu Wenxi, Xin Xin, Zhang Lei

引用次数: 16

Alteration of inner-annual runoff distribution and attribution analysis of Longchuan station at Dongjiang River 东江龙川站年内径流分布变化及归因分析

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893071

Xie Ping, Xu Bin, Huang Caixia, Chen Guangcai, Liu Xinyou, Tang Yasong

{"title":"Alteration of inner-annual runoff distribution and attribution analysis of Longchuan station at Dongjiang River","authors":"Xie Ping, Xu Bin, Huang Caixia, Chen Guangcai, Liu Xinyou, Tang Yasong","doi":"10.1109/ISWREP.2011.5893071","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893071","url":null,"abstract":"Due to the climate change, human activities and other factors, there are some inter-annual or inner-annual alterations happened in the hydrological series. Many important works had been affected severely, such as the planning and designation of hydraulic engineering, the sustainable utilization and optimal allocation of water resources etc. However, the studies about the features of inner-annual hydrologic elements distribution are mainly focused on the analysis of the inhomogeneity, with the disadvantage of unintuition and the poor comparability of the indicators from the view of methods that used nowadays, few of the studies considering the alteration of the inhomogeneity happened or not under the changing environment. Therefore, the Gini Coefficient with the advantage of well description of inhomogeneity is used to set up the analysis method of hydrological alteration of the inner-annual distribution. In this method, the series of homogeneity of inner-annual hydrological elements distribution will be calculated first of all, then the Hydrological Alteration Diagnosis System is used to analyze whether the alteration is happened in the series or not, finally, the mean difference method will be employed to analyze the attributions if the alteration is existing. At the end of this study, with the monthly runoff data from the year of 1954 to 2005 of Longchuan Station at Dongjiang River, the alterational characteristics of inner-annual runoff distribution is calculated and the attribution analysis is conducted in succession. The results show that: at the year of 1973, the increasing jump alteration happened in the series of inner-annual runoff distribution, which means the tendency of inner-annual runoff distribution becomes equalization. About 60% of the alteration is induced by the human activities, especially the construction and operation of Fengshuba Reservoir, and the factor of climate change only accounts for about 40%.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75850860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4