摘要
厌氧同时反硝化产甲烷工艺能够充分利用废水中的有机碳源,在实现生物脱氮的同时产生甲烷,其关键是如何减小或消除硝态氮(NOx--N)对产甲烷菌的抑制作用。目前,解决该问题的主要手段有培养同时反硝化产甲烷颗粒污泥和生物膜等方法。研究表明,厌氧同时反硝化产甲烷反应器串联好氧硝化反应器(SDMR—ANR)系统,适于处理早期的垃圾渗滤液、屠宰废水等含高浓度有机物和高NH+4-N的废水,其中进水COD/NO-3-N和好氧反应器出水回流比是影响其运行效果的关键因素。此外,还介绍了厌氧同时反硝化产甲烷工艺的微生物种群结构及进一步的功能扩展。
The anaerobic simultaneous denitrification and methanogenesis process can effectively utilize the organic carbon source in wastewater to realize biological nitrogen removal and methanogenesis simultaneously. How to reduce or eliminate the inhibition of NOx- -N on the methanogen is crucial. Cultivating the granular sludge or biofilm for simultaneous denitrification and methanogenesis are the main methods to solve the problem at present. The results show that system of anaerobic simultaneous denitrification and methanogenesis reactor in series with aerobic nitrifying reactor is very suitable to treat the wastewater with the high concentrations of organic matter and ammonia nitrogen, such as leachate from the immature landfill and slaughterhouse wastewater. The COD/NO3- -N of the influent and the effluent recycle ratio of the aerobic reactor are the key parameters which affect the performance of the system. In addition, the structure of the microbial community in the anaerobic simultaneous denitrification and meth-anogenesis reactor and the enlarged function of the simultaneous denitrification and methanogenesis process were introduced.
出处
《中国给水排水》
CAS
CSCD
北大核心
2008年第6期15-19,共5页
China Water & Wastewater
基金
国家“十一五”科技支撑计划重点资助项目(2006BAC19B03)
高等学校博士学科点专项基金资助项目(20060005002)
北京市教委科研基地-科技创新平台
关键词
生物脱氮
反硝化反应
产甲烷反应
颗粒污泥
biological nitrogen removal
denitrification reaction
methanogenesis reaction
granular sludge
