A pilot study on a step-feeding anoxic/oxic activated sludge system

被引：5
|
作者：
Wang Sheping [1 ]
Yu Lifang
Han Guanghui
Zhu Hairong
Peng Dangcong
机构：
[1] Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Peoples R China
[2] Xian Municipal Engn Design & Res Inst, Xian 710068, Peoples R China
来源：
WATER SCIENCE AND TECHNOLOGY | 2006年 / 53卷 / 09期
关键词：
municipal wastewater; pilot study; step-feed BNR;
D O I：
10.2166/wst.2006.283
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A four stage pilot plant of step-feed biological nutrient removal (BNR) was employed to investigate reactor performance and process stability. The results obtained showed that step-feed BNR is efficient and cost-effective for nitrogen and carbonaceous removal from municipal wastewater. The total average removal efficiencies of COD, NH3-N, TN and TP could reach as high as 89.5, 97.8, 73 and 7580, respectively, with 50% of return activated sludge (RAS), 9h of hydraulic retention time (HRT) and 20d of sludge retention time (SRT). Step-feed BNR is an alternative and effective technology of nutrient removal for municipal wastewater treatment.
引用
收藏
页码：95 / 101
页数：7
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