LIU Jia-qiang,ZHANG Jian-kun,LI Ying,et al.Application of Reversed A2/O+A/O Process in the Second-phase Extension Project of a Municipal WastewaterTreatment Plant[J].China Water & Wastewater,2018,34(22):55-58.
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Application of Reversed A2/O+A/O Process in the Second-phase Extension Project of a Municipal WastewaterTreatment Plant

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 22 Page: 55-58 Column: Date of publication: 2018-11-17
Article number:
1000-4602(2018)22-0055-04
Author(s):
LIU Jia-qiang1;  ZHANG Jian-kun1;  LI Ying1;  WEI Bang-sen2
(1. School of Environmental Engineering, Xuzhou Institute of Technology, Xuzhou 221111, China; 2. Xuzhou Municipal Engineering Design Institute Co. Ltd., Xuzhou 221002, China)
Keywords:
reversed A2/O;  A/O;  nitrogen and phosphorous removal
CLC:
TU992.3
Document code:
C
Abstract:
The first-phase design capacity of a wastewater treatment plant was 2×104 m3/d. With the traditional A2/O process, the effluent quality was very difficult to meet the first class A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002). The design capacity of second-phase extension project was 3×104 m3/d, on the basis of operation experience of the first-phase project, the combination process of reversed A2/O+AO followed by the advanced treatment process of chemical phosphorous removal and contact filtration were adopted in ensure the stable effluent quality. After second-phase extension project was put into operation, the effluent concentrations of COD, SS, ammonia nitrogen, TP were 34.5 mg/L, 7.8 mg/L, 3.8 mg/L, 0.34 mg/L, respectively, and all effluent indexes could meet the first level A criteria.

References:


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Memo

基金项目: 徐州工程学院校研课题(XKY2016230); 住房和城乡建设部项目(00730091、2010-k7-4)
作者简介:刘加强(1986- ), 男, 山东五莲人, 硕士, 工程师, 主要从事给水排水方面的教学与设计工作, 曾获2016年省城乡建设系统优秀勘察设计三等奖。 E-mail:liujiaqiangsdjz@126.com
收稿日期:2018-06-25

Last Update: 2018-12-10