Effect of Different Electron Donors on Reductive Dechlorination of 2,4-Dichlorophenol
- VernacularTitle:不同电子供体对2,4-二氯酚还原脱氯的影响
- Author:
Ting CHENG
;
You-Zhi DAI
;
Chun-Xiang LUO
;
Shuang-Shuang LI
;
Wen-Qi TANG
;
- Publication Type:Journal Article
- Keywords:
Reductive dechlorination, Electron donors, Zero-valent iron, 2,4-dichlorophenol
- From:
Microbiology
2008;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
A test was conducted to examine the effect of several electron donors such as glucose, sodium acetate, Fe0, Fe0+glucose and Fe0+sodium acetate on reductive dechlorination of 2,4-dichlorophenol (2,4-DCP) through inoculating the unacclimated anaerobic mixed bacteria. The optimum condition and sus-tainability of Fe0 as electron donor was also been discussed. The results showed that, Fe0+glucose enhanced the dechlorination of contaminant effectively compared to glucose. Sodium acetate, Fe0 and Fe0+sodium acetate were all effective electron donors and Fe0 was the optimum, the optimum initial pH was 8.0 and quantity of added Fe0 was 2.0 g/L. 4-CP was the mainly intermediate product for 2,4-DCP dechlorination. Fe0 could support the electron for reductive dechlorination of 2,4-DCP continuously. In contrast, when so-dium acetate as electron donor, the effect of dechlorination was inferior to Fe0 with the consumption of sodium acetate.
