Optimal Conditions for Biodegradation of Indeno (1,2,3-cd) Pyrene in Soil Slurry Reactors

Author

Chen, Haiying ; Ding, Aizhong ; Dou, Junfeng ; Cheng, Lirong ; Fan, Fuqiang ; Du, Yongchao ; Liu, Xiaona

Author_Institution

Eng. Res. Center of Groundwater Pollution Control & Remediation, Beijing Normal Univ., Beijing, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

Soil slurry reactor technology is one of the effective methods for treating PAHs contaminated soil. In this paper, removal of high molecular weight PAHs, Indeno (1,2,3-cd) pyrene (Inp), was studied in soil slurry reactors with isolated bacteria from PAHs contaminated soil. The factors affecting Inp biodegradation and the optimal conditions were investigated using orthogonal experimental design (L9(34)). The highest degradation efficiency of Inp was 50.71% after the incubation of 12 days. The most significant influencing factors were aeration rate, water to soil ratio and salinity, while pH was less significant. The optimal conditions for Inp degradation in soil slurry reactor was: aeration rate 120L/h, water to soil ratio 2:1, salinity 10%, pH=6.

Keywords

biodegradable materials; chemical reactors; contamination; environmental degradation; microorganisms; molecular weight; organic compounds; slurries; soil; Indeno (1,2,3-cd) pyrene; Inp degradation; aeration rate; biodegradation; contaminated soil; degradation efficiency; high molecular weight PAH; isolated bacteria; optimal conditions; orthogonal experimental design; soil slurry reactor technology; soil slurry reactors; Biodegradation; Degradation; Design for experiments; Indium phosphide; Inductors; Isolation technology; Microorganisms; Slurries; Soil; Water pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5517395

Filename

5517395