厌氧同时反硝化产甲烷研究进展  

A review on anaerobic simultaneous denitrification and methanogenesis

作　　者：谢丽[1] 陈金荣[1] 周琪[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《化工学报》2011年第3期589-597,共9页CIESC Journal

基　　金：水体污染控制与治理科技重大专项(2008ZX07316-002)~~

摘　　要：厌氧体系中同时反硝化产甲烷因具有同时去碳脱氮的特点,成为目前研究的热点。本文阐述了厌氧同时反硝化产甲烷工艺的原理及物质和电子流向,总结了反硝化产甲烷工艺中微生物种群和主要影响因素的研究现状,探讨了目前研究中存在的问题并提出未来发展方向。分析认为,还需要优化反硝化和产甲烷各自的电子流分量、探索更加合适的COD/NO-x-N比,合理分配电子流使产生的气体具有能源价值;污泥形态也影响同时反硝化产甲烷过程的进行,厌氧颗粒污泥或生物膜能缓解氮氧化物对产甲烷的抑制,更适合应用于厌氧同时反硝化产甲烷,但是还需考虑传质阻力以及进水高SS对系统的影响。The anaerobic simultaneous denitrification and methanogenesis（SMD）process has attracted considerable attention recently for the integrated removal of carbon and nitrogen.This review elucidated the mechanism of anaerobic SMD process and the involved materials and electron flow,and summarized the current research status on microbial communities and main influencing factors.Then the problems in current researches were discussed and direction for further study was proposed.More studies should be conducted to optimize the electron flow to both denitrification and methanogenesis,explore more suitable ratios of COD/NO-x-N and distribute the electron flow properly to produce energy-rich biogas.Additionally,the SMD process could be affected by sludge morphology,and anaerobic granular sludges or biofilms were found to be more suitable for SMD because it could relieve the inhibition of nitrogen oxides to methanogenesis.However,effects of mass transfer resistance and high suspended solids in the influent on this sludge system should be taken into consideration.

关 键 词：同时反硝化产甲烷 物质流和电子流 微生物种群 碳源 回流比 污泥系统 

分 类 号：X703.1[环境科学与工程—环境工程]