摘要
为了缓解缺水压力,在传统膜生物反应器(CMBR)的基础上开发出了一种新型城市污水处理回用工艺——淹没式复合型膜生物反应器(SHMBR),并考察了对城市生活污水的处理效果。试验结果表明,SHMBR可以在CMBR的基础上进一步提高生物量,并明显改善了对有机物和NH4+-N的去除效果。试验中对TN、TP的去除效果没有提高,原因可能是生物膜的厚度不够,没有在生物膜内部形成厌氧微环境。另外,SHMBR的除磷效果没有增强还可能与生物膜的SRT较长以及聚磷菌主要生活在活性污泥中有关。
To mitigate water shortage problem, based on conventional membrane bioreactor （CMBR） , an innovative submerged hybrid membrane bioreactor （SHMBR） was developed and used to treat municipal wastewater. The results show that SHMBR can enhance the total biomass, and increase the removal rates of COD and NH4^＋- N as compared with CMBR. However, the removal rates of TN and TP are hardly increased, which maybe relates to the insufficient thickness of attached biomass on the suspended carrier. In addition, no enhancement of the removal rate of TP by SHMBR maybe relates to the longer SRT of attached biofilm, and to fact that the phosphorus removing bacteria mainly live on suspended activated sludge.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第5期10-13,17,共5页
China Water & Wastewater
基金
国家自然科学基金重点资助项目(50138020)
