某污水厂站库调度及其他因素对进水浓度的影响分析  

Analysis on Influence of WWTP,Pump Station and Reservoir Scheduling and Other Factors on Influent Concentration of a WWTP

作　　者：杨静 张治 潘清 庞雯 蔚阳 朱淑娴 林晓燕 YANG Jing;ZHANG Zhi;PAN Qing;PANG Wen;YU Yang;ZHU Shu-xian;LIN Xiao-yan(Shenzhen Bao’an Drainage Co.Ltd.,Shenzhen 518038,China;Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 518038,China)

机构地区：[1]深圳市宝安排水有限公司,广东深圳518038 [2]清华大学深圳国际研究生院,广东深圳518038

出　　处：《中国给水排水》2024年第20期16-22,共7页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07202002)。

摘　　要：针对某市H区污水厂、站、库经过水量调配后,GS水质净化厂(一、二期)进厂BOD5浓度不断降低的问题,对H区“厂站网河库”体系进行排查和分析。通过对进厂BOD5浓度影响的关键因素进行定性定量分析,结合调度前后污水厂进水水质指标及管网的液位、流量、B/C比、C/N比等特性,明确主要问题,并为厂站库调度运行、BOD5浓度变化提供经验数据。研究结果显示,该区隐患问题总水量约11.6×10^(4) m^(3)/d,拉低了H区总进厂BOD5浓度17.29 mg/L;厂站库调度使H区总进厂BOD5浓度下降了7.14 mg/L;受低浓度工业废水及供水企业尾水影响,H区总进厂BOD5浓度降低1.6 mg/L。受疫情影响,与调度前相比,供水量下降1.52×10^(4) m^(3)/d。因此,H区优先解决倒灌点、打开总口最为重要,其次解决雨水进入污水系统问题;在厂站网库调度方面,应进一步推行厂站网河库一体化运维体系。In view of the observed decline in BOD5 concentration in the GS wastewater purification plant(phase I and phaseⅡ)following the allocation of the WWTP,pump station,and reservoir water in the H district of a city,an investigation and analysis of the“WWTP-pump station-sewer network-river(reservoir)”system in the H district is conducted.Through qualitative and quantitative analysis techniques,the key factors affecting the influent BOD5 concentration can be effectively identified.This is achieved by integrating the water quality indicators of the WWTP with the characteristics of the water level,flow,B/C ratio,and C/N ratio of the pipe network,both before and after the dispatching operation.The empirical data can be utilized to enhance the dispatching operation of WWTP and facilitate a more accurate prediction of the BOD5 concentration.The research results show that:①The total wastewater volume of potential problems in this area is about 11.6×10^(4) m^(3)/d,total influent BOD5 concentration in H district decreased by 17.29 mg/L;②The total influent BOD5 concentration has been reduced by 7.14 mg/L due to the scheduling of WWTP,pump station,and reservoir;③The impact of low-concentration industrial wastewater and tailwater of waterworks will reduce the total influent BOD5 concentration by 1.6 mg/L;④Affected by the epidemic,the water supply decreased by 1.52×10^(4) m^(3)/d compared with that before scheduling.Therefore,it is most important to prioritize addressing the backflow of river water and opening the main outlets in H district,followed by resolving the problem of rainwater entering the sewage system.In terms of scheduling of WWTP-pump station-sewer network-reservoir operation,the integrated operation and maintenance system of WWTP-pump station-reservoir should be further promoted.

关 键 词：厂站网库 一体化调度 提质增效 水质水量 定量分析 

分 类 号：TU992[建筑科学—市政工程]