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Volume 14 Issue 1
Mar 2003
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Taizhong Gao, Qunxian Huang, Ye Liu, Peng Qi, Huanzhen Zhang, Hesheng Cai. Study on Migration and Transformation Rule of Organic Pollutants(COD)in Aerated Zone. Journal of Earth Science, 2003, 14(1): 73-78.
Citation: Taizhong Gao, Qunxian Huang, Ye Liu, Peng Qi, Huanzhen Zhang, Hesheng Cai. Study on Migration and Transformation Rule of Organic Pollutants(COD)in Aerated Zone. Journal of Earth Science, 2003, 14(1): 73-78.

Study on Migration and Transformation Rule of Organic Pollutants(COD)in Aerated Zone

Funds:

Doctor's Foundation from the Hebei Province Science & Technology Commission 99547012D

Foundation of Hubei Laboratory for Studies in Geological Waste Disposal and Environment Protection HBWDEP9906

  • Received Date: 14 Jun 2002
  • Accepted Date: 20 Dec 2002
  • Available Online: 18 Jul 2022
  • Issue Publish Date: 30 Mar 2003
  • 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 forward a mathematical model showing the process. The results show that adsorption of organism in aerated zone is linear, which is represented by Henry's law s= Kdc+sd, adsorption coefficient Kd= 0.069 3; biodegradation diagram accord basically with first-order kinetics equation c= c0e-K1t, biodegradation coefficient K1= 0.049 9 d-1; dispersion coefficient D= 0.002 42 m2/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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