YUANRui,HANMei,LIUYong-ze,et al.Performances of Carbon-Sand Filter and Sand-Carbon Filter for Purification of Low Temperature and Turbidity Water[J].China Water & Wastewater,2024,40(5):57-62.
Performances of Carbon-Sand Filter and Sand-Carbon Filter for Purification of Low Temperature and Turbidity Water
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第5期
Page:
57-62
Column:
Date of publication:
2024-03-01
- Keywords:
- low temperature and turbidity water; carbon filter preposition/postposition process; purification efficiency; disinfection by-products
- Abstract:
- This paper investigated the performances of conventional water purification processes in northern China (carbon-sand filter and sand-carbon filter) for purification of low temperature and turbidity water in a pilot experiment in winter, and analyzed the formation of disinfection by-products in the final effluent under different combination sequences from the perspective of the whole process. Compared with the conventional sand-activated carbon filter (carbon filter postposition), the turbidity of the effluent from activated carbon-sand filter (carbon filter preposition) was lower, and the particulates with large particle size were reduced by 13.07%, and the removal rates of UV254 and TOC were increased by 3.5% and 2.7%, respectively. In addition, the disinfection by-products yield of activated carbon-sand filter was lower than that of sand-activated carbon filter. The activated carbon-sand filter enhanced the removal rate of pollutants in low temperature and turbidity water. The results are meant to provide technical support for water quality improvement of waterworks in northern China.
Last Update:
2024-03-01