LIYuan,CHEN Ying,HUANG Jie-qiong,et al.Application of Decentralized Domestic Sewage Treatment Equipment in a Village in Southern Jiangsu Province[J].China Water & Wastewater,2023,39(5):88-93.
Application of Decentralized Domestic Sewage Treatment Equipment in a Village in Southern Jiangsu Province
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第5期
Page:
88-93
Column:
Date of publication:
2023-03-01
- Keywords:
- decentralized treatment; integrated domestic sewage treatment equipment; septic tank; three-dimensional fluorescence spectrum
- Abstract:
- In a village in southern Jiangsu Province, four decentralized integrated domestic sewage treatment equipments were selected to investigate whether the presence of septic tank had an impact on the effluent quality, and the mechanism of pollutant removal was analyzed by three-dimensional fluorescence spectrum. Septic tank was an essential part of domestic sewage treatment. Its hydrolysis and acidification accelerated the removal of pollutants to fully utilize the function of each unit of the integrated equipment, and ensured that the effluent quality met the discharge standards. The dissolved organic matter was mainly removed in the septic tank when there was a septic tank station, and the removal was mainly accomplished in the aerobic tank without septic tank station. Due to the lack of functional section in the area without septic tank station, coagulation and precipitation should be adopted for re?treatment. The changes of special pollutants characterized by three-dimensional fluorescence spectrum were positively correlated with the changes of COD, which could be used to qualitatively evaluate the pollutants removal performance.
Last Update:
2023-03-01