净水技术2024，Vol.43Issue(7)：183-189,205,8.DOI:10.15890/j.cnki.jsjs.2024.07.022
三级AO+深度处理组合工艺在中小型城镇污水厂中的应用
Application of Combined Process of Three Stage AO+Advanced Treatment in Small and Medium Sized Urban WWTPs
摘要
Abstract
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.关键词
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Key words
multi-stage AO/high density sedimentation tank/denitrification deep bed filter(DDBF)/upgrading and reconstruction/continuous water supply reconstruction分类
建筑与水利引用本文复制引用
曾思雨,李甜,万剑梅,曾荣辉..三级AO+深度处理组合工艺在中小型城镇污水厂中的应用[J].净水技术,2024,43(7):183-189,205,8.基金项目
国家自然科学基金青年项目(52100012) （52100012）
中央高校基本科研业务费专项资金资助(22120240285) （22120240285）
