| Study on Migration and Transformation Rule of Organic Pollutants （COD） in Aerated Zone |
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| 作者姓名： | GaoTaizhong HuangQunxian LiuYe QiPeng ZhangHuanzhen CaiHesheng |
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| 作者单位： | Gao Taizhong Huang Qunxian College of Environment Science and Engineering，Hebei University of Sc ience & Technology，Shijiazhuang 050018 Liu Ye North Institute of Design & Researches，Shijiazhuang 050011 Qi Peng Zhang Huanzhen College of Environment Science and Engineering，Hebei University of Sc ience & Technology，Shijiazhuang 050018 Cai Hesheng Engineering Faculty，China University of Geosciences，Wuhan 430074 |
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| 基金项目： | hestudyissupportedbyDoctor’FoundationfromtheHebeiProvinceScience&TechnologyCommission ( 9954 7012D)andFoundationofHubeiLaboratoryforStudiesinGeologicalWasteDisposalandEnvironmentProtection (HBWDEP990 6 ) |
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| 摘 要： | Collecting waste water with a certain concentration of organic pollutants COD (chemical oxygen demand), static adsorption, static biodegradation and dynamic soil column experiments were made in laboratory,we researched migration and transformation of COD in aerated zone. and put for-ward a mathematical model showing the process.The results show that adsorption of organism in aerated zone is linear,which is erprsented by henry‘s law s=Kdc sd, adsorption coefficient Kd=0.0693; biodegradation diagram accord basically with first-order kinetics equation c=coe^-k1t, biodegradation co-efficient K1=0.0499d^-1; dispersion coefficient D=0.0042m^2/d in experiments. The migration and transformation of organic pollutants (COD) in aerated zone jointly result from many factors such as dispersion, adsorption and biodegradation etc..
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| 关 键 词： | COD 化学需氧量 有机污染物 地下水资源 水污染 移动规律 变化规律 |
Study on Migration and Transformation Rule of Organic Pollutants (COD) in Aerated Zone |
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| GaoTaizhong HuangQunxian LiuYe QiPeng ZhangHuanzhen CaiHesheng.Study on Migration and Transformation Rule of Organic Pollutants (COD) in Aerated Zone[J].Journal of China University of Geosciences,2003,14(1):73-78. |
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| Authors: | Gao Taizhong Huang Qunxian Liu Ye Qi Peng Zhang Huanzhen Cai Hesheng |
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| Abstract: | Collecting waste water with a certain c onc entration of organic pollutants COD (chemical oxygen demand), static adsorption, static biodegradation and dynamic soil column experiments were made in laborato ry, we researched migration and transformation of COD in aerated zone, and put f orward a mathematical model showing the process. The results show that adsorptio n of organism in aerated zone is linear, which is represented by Henry's law s =K dc+s d, adsorption coefficient K d=0.069 3; biodegradati on diagram accord basically with first order kinetics equation c=c 0e -K 1t , biodegradation coefficient K 1 = 0.049 9 d -1 ; dispersio n coefficient D= 0.002 42 m 2/d in experiments. The migration and transform ation of organic pollutants (COD) in aerated zone jointly result from many f actors such as dispersion, adsorption and biodegradation etc.. |
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| Keywords: | chemical oxygen demand of organic pollutants aerated zone migration and transformation |
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