首页|三级AO+深度处理组合工艺在中小型城镇污水厂中的应用

三级AO+深度处理组合工艺在中小型城镇污水厂中的应用

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  • 国家科技期刊平台
  • NETL
  • NSTL
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由于排放标准的提高和进水水质的变化,成都市某污水厂需提标改造.改造后,处理规模为 2 500 m3/d不变,出水水质需达到《四川省岷江、沱江流域水污染物排放标准》(DB 51/2311-2016).本工程采用充分利用原有的生化池,改建为三级AO池并新建深度处理设施的改造方式,该改造方式节省投资、不新征用土地、抗冲击负荷强,仅需约 30 min短时间碰管停水,改造后工艺运行稳定可靠,达到DB 51/2311-2016 的要求(CODCr≤30 mg/L,氨氮≤1.5 mg/L,总氮≤10 mg/L,总磷≤0.3 mg/L).项目可为中小型城镇污水厂提标改造提供借鉴经验.
Application of Combined Process of Three Stage AO+Advanced Treatment in Small and Medium Sized Urban WWTPs
Due to the improvement of discharge standards and changes in inflow water quality,a wastewater treatment plant(WWTP)in Chengdu City needs to be upgraded and renovated.After renovation,the processing scale is 2 500 m3/d remains unchanged,and the effluent quality needs to meet the Water Pollutant Discharge Standards for the Minjiang and Tuojiang River Basins in Sichuan Province(DB 51/2311-2016).In response to unfavorable factors such as unstable inflow and water quality,severe limitations on investment and land use,and a concentration of inflow water that far exceeds that of ordinary urban domestic sewage,this project adopts a non-stop water transformation method that fully utilizes the original biochemical tank,transforms it into a tertiary AO tank,and builds a new advanced treatment facility.This transformation method which can investment,not require new land acquisition,has strong impact resistance,and only needs a short period of pipe collision to stop water.After the transformation,the process operation is stable and reliable,meeting the requirements of DB 51/2311-2016(CODCr≤30 mg/L,ammonia nitrogen≤1.5 mg/L,total nitrogen≤10 mg/L,total phosphorus≤0.3 mg/L).This can provide reference experience for the upgrading and renovation of small and medium-sized urban sewage plants.

multi-stage AOhigh density sedimentation tankdenitrification deep bed filter(DDBF)upgrading and reconstructioncontinuous water supply reconstruction

曾思雨、李甜、万剑梅、曾荣辉

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同济大学环境科学与工程学院,上海 200092

中国市政工程西南设计研究总院有限公司,四川成都 610081

多级AO 高密度沉淀池 反硝化深床滤池 提标改造 短时停水改造

国家自然科学基金青年项目中央高校基本科研业务费专项资金资助

5210001222120240285

2024

10.15890/j.cnki.jsjs.2024.07.022

净水技术
上海市净水技术学会,上海市城乡建设和交通委员会科学技术委员会办公室

净水技术

CSTPCD
影响因子：0.643
ISSN：1009-0177
年,卷(期)：2024.43(7)
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