DENG Jun-jie,LAO Zhi-xiong,CHEN Ming-liang,et al.Optimizing and Improving Effluent Quality by Strengthening Conventional Water Treatment Process in an Aging Waterworks[J].China Water & Wastewater,2021,37(2 2):85-89.
Optimizing and Improving Effluent Quality by Strengthening Conventional Water Treatment Process in an Aging Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
2 2
Page:
85-89
Column:
Date of publication:
2021-01-17
- Keywords:
- aging waterworks; strengthening conventional water treatment process; siphon filter; powdered acitvated carbon; carbon-sand filter; potassium emergency dosing system; disinfection by-products
- Abstract:
- It is difficult to improve the water quality of aging waterworks by reforming the existing process tank due to site constraints. Therefore, it plays an important role in improving the effluent quality of aging waterworks and coping with sudden pollution by strengthening conventional water treatment process and increasing an emergency dosing system.For a certain waterworks, which takes raw water quality as level Ⅲ of Environmental Quality Standards for Surface Water (GB 3838-2002) from a tributary of the Cangjiang River, it is difficult to cope with sudden pollution by surrounding environment when the water quality deteriorated to level Ⅴ. The water supply safety can be effectively improved by transformation of siphon filter into carbon-sand filter, as well as addition of powdered activated carbon and potassium emergency dosing system. The effluent TOC decreased by 48.28%, the effluent CODMn decreased by 18.49%, the effluent trichloroacetaldehyde decreased by 81.41%, and the emergency treatment capacity of NH3-N increased by 56.79% after transformation.
Last Update:
2021-01-17