XIANGYing,HUANGShou-bin,HUANGAn,et al.Engineering Design of Exogenous Pollution Simulation and Abatement Control in Pipa Lake of Jiujiang[J].China Water & Wastewater,2023,39(6):113-121.
Engineering Design of Exogenous Pollution Simulation and Abatement Control in Pipa Lake of Jiujiang
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第6期
Page:
113-121
Column:
Date of publication:
2023-03-17
- Abstract:
- In view of the problem of black and odorous water in Pipa Lake of Jiujiang due to long-term pollution, a set of method system suitable for the abatement control of exogenous pollutants in Pipa Lake was proposed based on Digital Water urban drainage pipe network simulation system. The research process includes: Ⅰ. Sorting out the drainage system and outlet properties of the study area; Ⅱ. Calculating the production of discharge and non-point source pollutant load; Ⅲ. Analyzing and calculating water environmental capacity according to water quality objectives and ecological background; Ⅳ. Putting forward pollutant reduction standards for the study area in combination with the water environment control objectives; Ⅴ. Developing pollutant abatement control programs; Ⅵ. Analyzing the accessibility of remediation program target. Results show that through implementation of abatement control projects such as sewage interception project, water purification station project, ecological dredging project, replenishing and living water ecological restoration and landscape project, the water quality of Pipa Lake improved significantly, the total amount of pollutant discharge for the whole year could reach the level Ⅳrequirements of surface water. The reduction rates of COD, BOD5, NH3-N, TN and TP were 79%, 85%, 96%, 95%, and 91%, respectively, which achieved the expected goals.
Last Update:
2023-03-17