WANGGuang-zong,WANGBao-shan,ZHANGJi-cheng,et al.Efficacy of Electro?biological Coupling Slow Filtration for Treatment of Snowmelt Water in Alpine Pastoral Area[J].China Water & Wastewater,2024,40(17):42-48.
Efficacy of Electro?biological Coupling Slow Filtration for Treatment of Snowmelt Water in Alpine Pastoral Area
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第17期
Page:
42-48
Column:
Date of publication:
2024-09-01
- Keywords:
- electro-biological technology; biological slow filtration; snowmelt water; alpine pastoral area
- Abstract:
- Aiming at the issue of intermittent and occasional pollutant exceeding standard in source water in alpine pastoral area in China, a treatment technology based on electro-biological coupling slow filtration was developed and implemented for the treatment of snowmelt water in alpine pastoral area to explore its removal efficacy on conventional pollutants, and its removal mechanism of organic matters was analyzed through three-dimensional fluorescence spectrum. The biofilm formation time of the electro- biological coupling slow filter was 28 days at a voltage of 5 V, which was 7 days shorter than that of the traditional biological slow filter. The average removal rates of turbidity, CODMn, NH4+-N and UV254 were 97.66%, 61.11%, 91.67% and 72.94%, respectively, at water temperature of 5-15 ℃, filtration speed of 0.2 m/h and voltage of 10 V. Compared with traditional biological slow filter, the removal rates of CODMn, NH4+-N and UV254 were elevated by 36.38%, 39.63% and 38.20%, respectively. The fluorescence intensity of the four major fluorescence peaks in the influent was decreased by 36.67%, 66.22%, 67.08%, and 69.76%, respectively, indicating that the removal of tryptophan protein, fulvic acid, and humic acid was effectively achieved by the electro?biological coupling slow filter.
Last Update:
2024-09-01