摘要
采用A2/O工艺处理生活污水和粪便的混合污水,进行了不同HRT、DO、混合液回流比和污泥回流比等条件下的脱氮效果的研究,进行了6种不同工况下的脱氮和有机物去除效果的研究。结果表明,当好氧池水力停留时间(HRT)为5h、好氧池DO为3mg·L-1、混合液回流比R为120%和污泥回流比r为80%时,A2/O工艺能获得较好的脱氮效果和有机物去除效果。
An A^2/O process was used to treat the mixed wastewater of urban wastewater and dejecta. The removal effect of nitrogen, DO, return ratio and so on at different HRT test was investigated. It also has investigated the removal effect of organic matters and nitrogen at six kinds of technical parameters for A^2/O process. The results showed that the A^2/O process has much stronger removal effect with HRT 5 h and DO 3 mg·L^-1 in aerobic area, sludge return ratio 80%, mixed-liquor return ratio 120%. And it presented the plant experiment technique reference in the run rationally for dejeeta and sewage.
出处
《水处理技术》
CAS
CSCD
北大核心
2008年第10期53-56,共4页
Technology of Water Treatment
基金
国家科技成果重点推广计划(2005EC000288)
广州市科技成果重点推广计划项目(2006C13G0081)
关键词
A^2/O工艺
脱氮
粪便
混合污水
A^2/O process
nitrogen removal
dejecta
mixed wastewater
