摘要
分别考察了不同HRT、DO、混合液和污泥回流比、温度、C/N比等条件下,A2/O工艺的脱氮效果和有机物去除效果.结果表明,对于城市生活污水而言,当好氧区水力停留时间为6 h、DO为4 mg/L、混合液回流比为300%、污泥回流比为100%时,A2/O工艺能获得较好的脱氮效果和有机物去除效果.
This paper investigates the removal effect of organic matters and nitrogen of A^2/O process at different HRT, DO, return ratio, temperature, C/N and so on, The results showed that for the urban wastewater, the A^2/O process has more stronger removal effect with HRT 6 h and DO 3 mg/L in aerobic area, sludge return ratio 100%, mixed-liquor return ratio 300%.
出处
《哈尔滨商业大学学报(自然科学版)》
CAS
2006年第1期28-31,共4页
Journal of Harbin University of Commerce:Natural Sciences Edition
基金
国家自然科学基金项目:多孔介质中微生物除氮机理15N标识及其数值模拟(40372113)
关键词
A^2/O工艺
脱氮
有机物去除
城市生活污水
污泥回流比
A^2/O process
nitrogen removal
organic matters removal
urban wastewater
sludge return ratio