In situ simulated remediation of polycyclic aromatic hydrocarbons by activated sodium persulfate system

doi:10.3969/j.issn.1004-1524.2018.06.22

›› 2018, Vol. 30 ›› Issue (6): 1044-1049.DOI: 10.3969/j.issn.1004-1524.2018.06.22

• Environmental Science • Previous Articles Next Articles

In situ simulated remediation of polycyclic aromatic hydrocarbons by activated sodium persulfate system

ZHANG Hongling, LI Sen^*, ZHANG Yang, ZHAN Sheng, SHANG Zhaocong

Shanghai Research Institute of Chemical Industry Co.,Ltd, Laboratory of Industrial (Soil Pollution Remediation) Product Quality Control and Technical Evaluation,Shanghai 200062, China

Received:2017-08-25 Online:2018-06-20 Published:2018-07-02

Abstract

Abstract: A system of activated sodium persulfate by sodium percarbonate was used to remove anthracene, pyrene, and benzoapyrene (PAHs) in soil,and the system complying with surfactants was applied in a simulation experiment of in situ remediation of PAHs. In the case that ratio of sodium percarbonate to sodium persulfate was 0.67,the maximum removal yield of PAHs reached 92.3%. On the basis, as the ratio of surfactants to system was 2%, the obtained highest removal rate of PAHs was 97.4%. Meanwhile, the effect of sodium percarbonate activated sodium persulfate combined with surfactants system to repair PAHs in soil in situ was significant, and the removal efficiencies of PAHs in upper and lower soils were both above 97.0% after 168 h.

Key words: in situ remediation, organic pollution, soil remediation

CLC Number:

S159
X53

ZHANG Hongling, LI Sen, ZHANG Yang, ZHAN Sheng, SHANG Zhaocong. In situ simulated remediation of polycyclic aromatic hydrocarbons by activated sodium persulfate system[J]. , 2018, 30(6): 1044-1049.

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In situ simulated remediation of polycyclic aromatic hydrocarbons by activated sodium persulfate system

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