Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)

Study on the Characteristic of Adsorption Kinetics of Organochlorine Pesticides in Agricultural Soils

Authors
Ming GAO, Xuming SUN, Hui HUANG
Corresponding Author
Ming GAO
Available Online December 2016.
DOI
https://doi.org/10.2991/bep-16.2017.87How to use a DOI?
Keywords
BHC; DDT; soil; adsorption kinetics
Abstract

To study the characteristic of adsorption kinetics of BHC and DDT in the unsaturated zone of typical northeastern soil field of China by adopting indoor soil adsorption simulation experiment. The purpose of the study is to reveal the pollution mechanism of BHC and DDT to soil and groundwater and provide a scientific basis for making reasonable and effective groundwater pollution prevention and control measures. The results showed that the adsorption of BHC and DDT in the tested soils were well consistent with the Langmuir kinetics equation. Adsorption can be divided into two processes, namely, rapid reaction phase and slow reaction phase. At the initial stage of reaction, the amount of adsorption increased with time and basically reached equilibrium at about 4~8 h. The equilibrium adsorption capacity was more than 50% in the first hour and above 90% in the second hour. In addition, the sorption and the desorption process actually occur simultaneously during the adsorption or desorption of organic matter. The adsorption / desorption two-compartment model can describe the two reversible processes at the same time. The fitted value r is from 0.8039 to 0.9651.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)
Series
Advances in Biological Sciences Research
Publication Date
December 2016
ISBN
978-94-6252-287-9
ISSN
2468-5747
DOI
https://doi.org/10.2991/bep-16.2017.87How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Ming GAO
AU  - Xuming SUN
AU  - Hui HUANG
PY  - 2016/12
DA  - 2016/12
TI  - Study on the Characteristic of Adsorption Kinetics of Organochlorine Pesticides in Agricultural Soils
BT  - Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)
PB  - Atlantis Press
SP  - 392
EP  - 395
SN  - 2468-5747
UR  - https://doi.org/10.2991/bep-16.2017.87
DO  - https://doi.org/10.2991/bep-16.2017.87
ID  - GAO2016/12
ER  -