JIANG Chun?jie.Application of Improved Bardenpho, PAC and Constructed Wetland Process in Sewage Treatment[J].China Water & Wastewater,2022,38(No.2):93-97.
Application of Improved Bardenpho, PAC and Constructed Wetland Process in Sewage Treatment
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
No.第2
Page:
93-97
Column:
Date of publication:
2022-01-17
- Keywords:
- coagulation and sedimentation; improved Bardenpho; powdered activated carbon; additional sand coagulation clarification; constructed wetland
- Abstract:
- The fourth phase expansion project of a township sewage treatment plant with a design scale of 5×104 m3/d, adopted the main process of aerated grit chamber, coagulation and primary sedimentation, improved Bardenpho, powdered activated carbon (PAC) adsorption, additional sand coagulation clarification, ultraviolet disinfection, and constructed wetland. The operation results show that the process can effectively deal with the influent quality fluctuation, and the effluent indexes are better than the design standard. The effluent COD, BOD5, NH3-N and TP indexes of the constructed wetland have reached the level Ⅲ criteria in Environmental Quality Standards for Surface Water (GB 3838-2002). The constructed wetland has a good effect on stabilizing the effluent quality. The removal rates of COD,BOD5, NH3-N and TP are 50.2%, 46%, 53.3% and 46.7% respectively.
Last Update:
2022-01-17