厌氧/人工湿地组合系统处理农村生活污水的效能  

Efficiency of Combined Anaerobic Baffled Reactor/Corridor Constructed Wetland for Rural Domestic Sewage Treatment

作　　者：李军幸[1] 张克强[1] 张洪生[1] 杨鹏[1] 梁军锋[1] 

机构地区：[1]农业部环境保护科研监测所,天津300191

出　　处：《中国给水排水》2011年第23期18-20,25,共4页China Water & Wastewater

基　　金：中央级公益性科研院所基本科研业务费资助项目(2008-ljx-6);国家水体污染控制与治理科技重大专项(2008ZX07425-004-03)

摘　　要：采用复合厌氧折流板反应器/廊道式人工湿地(CABR/CCW)系统处理农村生活污水,考察了对COD及氮、磷的去除效果。2006年4月—2007年1月的运行表明,CABR/CCW系统稳定运行后,在HRT约为50 h的条件下,夏秋季对COD的平均去除率为78.9%,冬季的平均去除率约为56.6%;CABR对COD的去除贡献率为60%,CCW的贡献率仅为40%左右,且冬季略有下降。系统对COD的去除效果受温度的影响显著,但在相同温度水平下对COD的去除量趋于稳定,去除率与进水COD浓度呈负相关。系统对总氮的去除主要依靠人工湿地,夏秋季的去除率为62.5%～74.2%,冬春季的去除率为41.9%～45.3%。磷的去除主要靠人工湿地中基质的吸附作用,试验期间去除率始终保持在83.6%以上。The combined anaerobic baffled reactor/corridor constructed wetland （CABR/CCW） system was used to treat rural domestic sewage, and the removal effects of COD, nitrogen and phosphorus were investigated. The operation from April 2006 to January 2007 shows that after the stable operation of the CABR./CCW system and at HRT of 50 h, the average removal rate of COD is 78.9% in summer and autumn and 56.6% in winter. The contribution rate of CABR to COD removal is about 60%, and that of CCW is about 40%, even lower but not significant in winter. The removal effect of COD is significantly influenced by temperature but the removal rate of COD tends to be stable at the same temperature, and there is a negative correlation between COD removal rate and influent concentration. The removal of total nitrogen mostly depends on constructed wetland, and its removal rate is from 62.5% to 74.2% in summer and autumn, while from 41.9% to 45.3% in winter and spring. The removal of phosphorus mostly depends on the substrate in constructed wetland, and its removal rate is above 83.6%.

关 键 词：复合厌氧折流板反应器 廊道式人工湿地 生活污水 

分 类 号：X703[环境科学与工程—环境工程]