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The Chemical Kinetics in Migration of Organophosphorus in Clay with Different pH |
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| Authors: | LI Hongyan ZHANG Guangxin SONG Dingfeng WANG Yanliang LI Jianping LI Xuqian |
| Institution: | 1. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences, Changchun 130012, Jilin, China; Jilin Institute of Geo-Environment Monitoring, Changchun 130021, Jilin, China 2. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences, Changchun 130012, Jilin, China 3. SIPPR Engineering Group Co., Ltd, Zhengzhou 450007, Henan, China 4. Jilin Institute of Geo-Environment Monitoring, Changchun 130021, Jilin, China 5. Limited Company of Metallurgy Engineering of China, Beijing 100088, China 6. College of Environment and Resources, Jilin University, Changchun 130026, Jilin, China |
| Abstract: | In order to study the characters of chemical kinetics for organophosphorus migration in clay with different pH, waste of organophosphorus was put under pressure to leakage permeating the cohesive soil, and simulate the process of organophosphorus leakage permeating the Aquitard, searching the characters of chemical kinetics for organophosphorus migration in clay with different pH. It is shown that the ability of migration of organophosphorus leakage permeating the cohesive soil fall with increase of pH; the penetration rate of organophosphorus is about 1.25% when pH is 7.5, organophosphorus has not penetrated the cohesive soil when pH is equal or greater than 8.5. The effect of retardarce is obvious. Concentration of PO43? that comes from the mineralization of organophosphorus is lowered slightly with increases of pH of clay, and rise with extension of time. The Chemical Kinetics equation is log c=?0.1pH+0.2172k1t+S. |
| Keywords: | Organophosphorus pH dynamics of migration |
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