Impact of reflux on nitrogen and phosphorus removal performance of a pilot scale of intermittent A/O-MBR

被引：0

作者：

Ding, An ^{[1
]}

Liang, Heng ^{[1
]}

Guo, Wuzhen ^{[2
]}

Ye, Tingjin ^{[2
]}

Chen, Jie ^{[3
]}

Rao, Qianping ^{[2
]}

Li, Guibai ^{[1
]}

机构：

[1] State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China

[2] Foshan Water Group Co. Ltd., 528305 Foshan, Guangdong, China

[3] Suzhou Litree Ultrafiltration Membrane Technology Co. Ltd., 215152 Suzhou, Jiangsu, China

来源：

Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | 2013年 / 45卷 / 04期

关键词：

A/O-MBR - Municipal wastewater treatment plants - Municipal wastewaters - Nitrogen and phosphorus removal - Reflux modes - Reflux ratio - Removal efficiencies - Wastewater treatment plants;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To enhance the quality of wastewater treatment plant's (CASS process) effluent in Foshan to satisfy the water reuse standards, the impact of reflux ratios and reflux modes on nitrogen and phosphorus removal performance of a pilot scale of intermittent A/O-MBR fed with municipal wastewater was studied in this paper. The results showed that the reflux ratios and reflux modes had no remarkable influence on removal of CODCr and NH4+-N, and the concentrations of CODCr and NH4+-N in the effluent both reached the primary standard A of (GB18918-2002). The reflux ratios and reflux modes had significant influence on removal of TN and TP. The removal efficiencies of TN and TP were poor with a continuous reflux and a larger reflux ratio (350%); When the reflux ratio was 130%, the continuous mode was propitious to TN removal, and the removal efficiency could reach (48.00±10.05)%, what's more, the concentration of TN in the effluent reached the primary standard A, while the intermittent mode was also propitious to TP removal, the removal efficiency could reach (78.27±23.41)%, and the concentration of TP in the effluent reached the primary standard B.

引用

页码：33 / 37