Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation  

作　　者：Zhengsheng Lu Moran Wang Mingkai Zhang Ji Li Ying Xu Hanchang Shi Yanchen Liu Xia Huang 

机构地区：[1]State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University,Beijing 100084,China [2]School of Environment and Civil Engineering,Jiangnan University,Wuxi 214122,China [3]Wuxi Water Group Co.Ltd.,Wuxi 214031,China

出　　处：《Frontiers of Environmental Science & Engineering》2020年第3期103-111,共9页环境科学与工程前沿（英文）

基　　金：This research was supported by the Major Science and Technology Program for Water Pollution Control and Treatment of China(Nos.2017ZX07103-007 and 2018ZX07111-006);the Tsinghua University Initiative Scientific Research Program(No.2018Z02ALB01).

摘　　要：This study aims to propose a multi-point integrated real-time control method based on discrete dynamic water level variations,which can be realized only based on the programmable logic controller(PLC)system without using a complex mathematical model.A discretized water level control model was developed to conduct the real-time control based on data-automation.It combines the upstream pumping stations and the downstream influent pumping systems of wastewater treatment plant(WWTP).The discretized water level control method can regulate dynamic wastewater pumping flow of pumps following the dynamic water level variation in the sewer system.This control method has been successfully applied in practical integrated operations of sewer-WWTP following the sensitive flow disturbances of the sewer system.The operational results showed that the control method could provide a more stabilized regulate pumping flow for treatment process;it can also reduce the occurrence risk of combined sewer overflow(CSO)during heavy rainfall events by increasing transport capacity of pumping station and influent flow in WWTP,which takes full advantage of storage space in the sewer system.

关 键 词：Sewer system Integrated control Discrete control Water level 

分 类 号：X703[环境科学与工程—环境工程]