CHEN Shi-qi,LIU Cheng,SHEN Hai-jun,et al.Discussion on Replacement Strategy of Invalidated Biological Activated Carbon in Drinking Water Plants[J].China Water & Wastewater,2020,36(17 17):49-56.
Discussion on Replacement Strategy of Invalidated Biological Activated Carbon in Drinking Water Plants
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
17 17
Page:
49-56
Column:
Date of publication:
2020-09-01
- Abstract:
- Some typical problems during replacement of invalidated biological activated carbon (BAC) in drinking water plants were analyzed and discussed by means of on-site survey and pilot test. At present, the rational use of the invalidated BAC is mainly concerned in the process of activated carbon replacement. Pilot test results showed that higher replacement ratio favored the treatment performance of the BAC filter and extended the service time of BAC. Therefore, a large replacement ratio should be adopted for the BAC filter, and the biodegradation capacity should be relatively stable by controlling the replacement ratio. Replacement time of BAC needs to be determined in combination with its application function and working mechanism, which should be controlled around May of each year. The BAC replacement process needs to consider the use of mechanical methods. In all, suitable replacement strategy should be optimized to guarantee the drinking water safety based on the practical need of the drinking water plants.
Last Update:
2020-09-01