LIShuang-ju,CHENGRui-feng,LIUJia-ran,et al.Upgrading Engineering Design of Post-denitrification Filter and Activated Carbon Contact Tank[J].China Water & Wastewater,2024,40(18):96-102.
Upgrading Engineering Design of Post-denitrification Filter and Activated Carbon Contact Tank
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第18期
Page:
96-102
Column:
Date of publication:
2024-09-17
- Keywords:
- wastewater treatment plant; upgrading and reconstruction; advanced treatment; denitrification filter; activated carbon contact tank; high-efficiency magnetic coagulation tank; combined process
- Abstract:
- The effluent quality of a wastewater treatment plant with capacity of 13×104 m3/d in Henan Province, will be raised from the first level A criteria in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) to the quasi-Ⅳ criteria in the Environmental Quality Standards for Surface Water (GB 3838-2002). Based on replacing the dilapidated equipment and excavating the potential of the existing system, a high-efficiency magnetic coagulation tank was built to replace the treatment facility of phase Ⅱ, and a denitrification filter and an activated carbon contact tank were installed to enhance the removal of organic matter and TN. Because of land use restrictions, new buildings are arranged intensively to improve the construction space. The operation of combined process can effectively cope with the fluctuation of influent quality caused by industrial wastewater and ensure the effluent quality stably superior to level quasi?Ⅳ standard of surface water. Comparing with the traditional advanced treatment process, the upgrading project saves the electricity consumption and chemical consumption cost, and solves the problems of land shortage and poor anti?impact load capacity of the plant.
Last Update:
2024-09-17