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农药复合污染在土壤中的吸附规律研究
引用本文:李霞,;王成端,;张黎黎,;吴学深,;王冬莹,;蔡信德.农药复合污染在土壤中的吸附规律研究[J].四川建材学院学报,2014(3):40-44.
作者姓名:李霞  ;王成端  ;张黎黎  ;吴学深  ;王冬莹  ;蔡信德
作者单位:[1]西南科技大学环境与资源学院,四川绵阳621010; [2]四川理工学院,四川自贡643000; [3]华南农业大学资源与环境学院,广州510642; [4]环境保护部华南环境科学研究所,广州510655
基金项目:国家环保公益科研专项(201109020)
摘    要:采用批量平衡法研究了阿特拉津、毒死蜱及氰戊菊酯单独或共存时在土壤中的交互吸附特性。结果表明,3种农药混合使用比单独使用时达到吸附平衡所用的时间提前;农药单独存在和共存情况下,3种农药的吸附量均有相同的变化趋势,农药种类越多,每种农药的吸附量会减少,且在高浓度下差异显著;土壤中有机质含量越高,对农药的吸附量也越大,但受农药自身结构性质的显著影响。

关 键 词:农药  复合污染  土壤  吸附

A Study on the Sorption Behavior of Pesticides Combined Pollution in Soil
Affiliation:LI Xia, WANG Cheng- duan, ZHANG Li -li, WU Xue -shen, WANG Dong - ying, CM Xin - de ( 1. School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China; 2. Sichuan University of Science and Engineering, Zigong 643000, Sichuan, China; 3. College of Natural Resources and Environment, South China Agricutural University, Guangzhou 510642, Guangdong , China ; 4. South China Institute of Environmental Sciences, Ministry of Environmental Protecetion, Guangzhou 510655, Guangdong, China)
Abstract:The adsorption of atazine,chorpyriphos and fenvalerate under single or with coexistence in soil were studied by using batch equilibrium method. The results show that,when pesticides used alone,the equilibrium time is in advance; No matter single or combined pesticides,adsorption of three pesticides without exception keep the same change trend,and with more kinds of pesticide,each of the pesticide adsorption capacity would be reduced,and a significant difference is found in high concentrations; The adsorbing capacity is larger with the higher organic matter content in the soil,but also significantly influenced by structural properties of pesticide.
Keywords:Pesticide  Compound pollution  Soil  Adsorption
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