[1]白玉华,张欣宇,黄政鑫,等.AAOA-MBR强化脱氮工艺用于内江市某污水厂提标改造[J].中国给水排水,2020,36(24):87-91.
BAI Yu-hua,ZHANG Xin-yu,HUANG Zheng-xin,et al.AAOA-MBR Enhanced Denitrification Process for Upgrading and Reconstruction of a Wastewater Treatment Plant in Neijiang[J].China Water & Wastewater,2020,36(24):87-91.
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BAI Yu-hua,ZHANG Xin-yu,HUANG Zheng-xin,et al.AAOA-MBR Enhanced Denitrification Process for Upgrading and Reconstruction of a Wastewater Treatment Plant in Neijiang[J].China Water & Wastewater,2020,36(24):87-91.
AAOA-MBR强化脱氮工艺用于内江市某污水厂提标改造
中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第24期 页码: 87-91 栏目: 出版日期: 2020-12-17
- Title:
- AAOA-MBR Enhanced Denitrification Process for Upgrading and Reconstruction of a Wastewater Treatment Plant in Neijiang
- 关键词:
- 污水处理厂; 提标改造; AAOA-MBR工艺
摘要:- 四川省内江市某污水厂总处理规模为1.8×104 m3/d，一期工程处理规模为0.9×104 m3/d，原采用AAO-MBR为主体的污水处理工艺，出水水质执行《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准。提标改造工程处理规模不变，出水水质要达到《四川省岷江、沱江流域水污染物排放标准》(DB 51/2311—2016)中城镇污水处理厂排放标准。总氮下降至10 mg/L是关键技术难点，为此，采用AAOA-MBR强化脱氮工艺，主要通过改造AAO生物池扩大缺氧区容积、新增碳源投加系统、新增精确曝气系统等措施，实现了在不新增土地、不停产情况下总氮的有效去除。工程建成投运以来，运行状况良好，出水水质稳定达到设计标准。
Abstract:- The total treatment capacity of a wastewater treatment plant in Neijiang City, Sichuan Province is 1.8×104 m3/d, and the treatment capacity of the first phase project is 0.9×104 m3/d. The AAO-MBR was used as the original wastewater treatment process, and the effluent quality implemented the first class A standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The treatment capacity of the upgrading project remains as same as the original project, and the effluent quality should meet the discharge standard of the municipal wastewater treatment plant in the Discharge Standard of Water Pollutants in Minjiang and Tuojiang River Basins of Sichuan Province (DB 51/2311-2016). The reduction of total nitrogen to 10 mg/L was the key technical difficulty. Therefore, the AAOA-MBR enhanced denitrification process was adopted to achieve the effective removal of total nitrogen without adding land or stopping production, mainly through the transformation of the AAO biological unit to expand the volume of the anoxic zone, addition of new carbon source dosing system, and adoption of new precise aeration system. Since the project was completed and put into operation, it has been in good operating condition, and the effluent quality has reached the design standard.
