净水技术2024，Vol.43Issue(z2)：177-184,338,9.DOI:10.15890/j.cnki.jsjs.2024.s2.025
县级市政污水处理厂提标改造探究与应用
Exploration and Application of Upgrading and Reconstruction of Municipal WWTPs at the County Level
摘要
Abstract
To further promote the quality of the regional water environment,based on the existing process of municipal wastewater treatment plants(WWTPs),this paper delves into tapping the potential of process segments and minimizes the land occupation for expansion to upgrade the municipal sewage treatment plants in key environmentally sensitive areas of a certain county from the original grade A standard to the Discharge Standard of Major Water Pollutants for Municipal Wastewater Treatment Plant(DB33/2169-2018)in Zhejiang Province.Taking two municipal WWTPs in a certain county as examples,the concept of cost reduction and efficiency increase by optimizing operation before taking engineering measures,and in-situ standard upgrading before newly building and upgrading is advocated.The process operation,energy consumption,floor area,and investment cost per ton of water are deeply analyzed.The average removal rates of chemical oxygen demand(CODCr),ammonia nitrogen,and total nitrogen(TN)after the upgrading and reconstruction of phase Ⅰ and phase Ⅱ of WWTP A are 93.29％,95.53％,and 76.73％,respectively.The average removal rates of CODCr,ammonia nitrogen,and TN after the phase Ⅲ of upgrading are 96.05％,98.11％,and 73.18％,respectively.The average removal rates of CODCr,ammonia nitrogen,and TN after the upgrading and renovation of WWTP B are 96.76％,96.27％,and 87.44％,respectively.Finally,the effluent quality of the two WWTPs can stably reach the DB33/2169-2018 of emission standards in table two.This engineering case can provide reference for the upgrading and reconstruction of WWTPs of other county-level water companies.关键词
市政污水处理厂/提标改造/优化运行/深度处理/工程措施Key words
municipal wastewater treatment plant/standard upgrading/optimize the operation/deep processing/project measures分类
建筑与水利引用本文复制引用
钱炯,何洁,张小茜,田艳..县级市政污水处理厂提标改造探究与应用[J].净水技术,2024,43(z2):177-184,338,9.基金项目
重点流域水环境综合治理2020年中央预算内投资计划(发改投资[2020]371号) （发改投资[2020]371号）
