Study on the Effect of Biological Reductive Dechlorinationof 2,4-Dichlorophenol by Zero-valent Iron
- VernacularTitle:零价铁对2,4-二氯酚生物还原脱氯的影响研究
- Author:
Ting CHENG
;
You-Zhi DAI
;
Zhi-Yong LIU
;
Liang-Chang ZHANG
;
- Publication Type:Journal Article
- Keywords:
2,4-Dichlorophenol, Zero-valent Iron, Biological reductive dechlorination
- From:
Microbiology
1992;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
A batch laboratory test was conducted to examine the effect of biological reductive dechlorination of 2,4-Dichlorophenol(2,4-DCP) by the addition of zero-valent iron(Fe0) in the anaerobic system, through inoculating the anaerobic mixed microorganism acclimated for two months. Meanwhile, several factors that affected "Fe0+ microbe" system were also being discussed. The results showed that, "Fe0+ microbe" system accelerated the biological dechlorination of 2,4-DCP effectively compared to the individual use. The opti-mum quantity of added Fe0 and inoculation was 0.5 g/L and 376.2 mgVSS/L in the combined system respec-tively. It showed the most effective transformation efficiency for 2,4-DCP when initial pH=8.0, whereas it become weaker when initial pH are keeping in acid condition. There existed a proportion between quantity of added Fe0 and inoculation. It enhanced degradable effect of 2,4-dichlorophenol when increased the quan-tity of inoculation at suitable ranges, which generated more enzyme or enzymatic series degraded pollutant.
