%0 Journal Article
%T Study on Biodegradation of 2,4-DCP by Anaerobic Sludge Acclimated by Mixed Mono-Chlorphenols<br>以混合单氯酚驯化厌氧颗粒污泥降解2,4-DCP的研究
%A ZHANG Wen
%A CHEN Ling
%A JI Jun-ping
%A XIA Si-qing
%A <br>张文
%A 陈玲
%A 计军平
%A 夏四清
%J 环境科学
%D 2007
%I 
%X Purpose of this study was to determine the treatability of 2,4-dichlorophenol (2,4-DCP) by anaerobic granular sludge which was acclimated by mixed mono-chlorphenols (2-CP,4-MCP). The characteristic of degradation of 2,4-DCP by anaerobic sludge acclimated by mixed mono-chlorphenols was investigated through shake flask study and performance of continuous flow anaerobic bioreactors. The difference of degradation of 2,4-DCP by acclimated and unacclimated sludge was also compared. 2,4-DCP was degraded at 50h and 180h respectively for acclimated and unacclimated sludge which testified that acclimated sludge could more effectively degrade 2,4-DCP. Although the intermediate product 4-MCP was present in both reaction system, 4-MCP could be degraded completely after 400h in the acclimated sludge but accumulated in the unacclimated sludge. Therefore, acclimation by the mixed mono-chlorphenols (2-CP, 4-MCP) could enhance the ability of para- and meta-dechlorination for anaerobic sludge and increase the treatability of 2,4-DCP. The results of continuous anaerobic sludge-suspended carrier bioreactor (ASSCB) indicate that inoculation of the acclimated sludge by mixed mono-chlorphenols can degrade two mono- chlorphenols simultaneously, shorten the setup period, and increase the efficiency of degrading 2,4-DCP. 2-CP was easily degraded with removal rate of over 80%. While the removal rate of 4-MCP was fluctuating from 30%~80% with changes of its influent concentration.
%K chlorphenol
%K anaerobic degradation
%K 2
%K 4-DCP
%K dechlorination<br>氯酚
%K 厌氧降解
%K 2
%K 4-二氯酚
%K 脱氯
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BC85E858628321E1ECB7F18D462C0CD1&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=87352E668344FB84&eid=FD947B5A26542F64&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=20