The implementation of single-sludge step-feed anoxic-aerobic process in a domestic wastewater treatment plant

被引：3
|
作者：
Xu, Aotian [1 ]
Young, Stephanie [1 ]
Zhang, Yanqiu [2 ]
机构：
[1] Univ Regina, Fac Engn, Regina, SK S4S 0A2, Canada
[2] China Univ Min & Technol, Sch Environm Sci & Spatial Informat, Xuzhou 221008, Jiangsu, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL ENGINEERING AND SCIENCE | 2008年 / 7卷 / 04期
基金：
加拿大自然科学与工程研究理事会;
关键词：
nitrogen removal; step feeding; anoxic-aerobic process; activated sludge; solid retention time;
D O I：
10.1139/S08-018
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The single-sludge step-feed anoxic-aerobic process (SSFAOP) was implemented in the Xuzhou wastewater treatment plant (WWTP) in China to enhance ammonia and nitrogen removal performance. Influent flow splitting and step feeding in the aerobic zone were used to provide high concentrations of mixed liquor suspended solids (MLSS), long solids retention time (SRT), and short nitrification time. After implementation, removal efficiencies of ammonia nitrogen >90% and total Kjeldahl nitrogen (TKN) >80% were achieved. The amount of waste activated sludge (WAS) was significantly reduced, and sludge bulkings were eliminated. The application of SSFAOP also reduced capital and operational costs.
引用
收藏
页码：417 / 421
页数：5
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