摘要
针对我国西北村镇分散式水窖微污染窖水的水质特性,探讨臭氧-生物活性炭工艺(O3-BAC)处理微污染窖水的可行性。结果表明,活性炭挂膜过程可分为三个阶段:微生物适应期、生物膜生长期、生物膜成熟期。煤质活性炭在生物膜成熟期对窖水中CODMn、氨氮的去除率分别为81.02%、77.21%,适合作为生物活性炭工艺(BAC)的填料。预臭氧最佳投加量为3mg/L,O3-BAC出水各项指标均符合生活饮用水卫生标准。O3-BAC工艺适合处理西北村镇分散式水窖微污染窖水。
The ozone - biological activated carbon （ 03 - BAC ） technology was utilized for the treatment of slightly polluted cellar rainwater arming to the quality characteristics of the cellar rainwater in villages and towns of Northwestern China. The results show that the process of biofilm culturing with activated carbon can be divided into three stages： microbial adaptation period, biofilm growth period and biofilm maturation period. The average removal rates of ammonia nitrogen and CODMn were 81.02% and 77.21% respectively in the biofilm maturation period treated by coal based activated carbon, which was higher than the other kinds of activated carbon; coal based activated carbon was more suitable for cellar rainwater treatment with biological activated carbon （BAC） technology. The best dosage of ozone was 3mg/L, the indices of 03 - BAC effluent were in accord with the sani- tary standard for drinking water. The conclusion could be make that the ozone -biological activated carbon （03 - BAC） technology is suitable for the treatment of distributed cellar rainwater slightly polluted in the Northwest China.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2015年第4期154-159,共6页
Journal of Arid Land Resources and Environment
基金
国家留学基金委西部项目资助
关键词
窖水处理
O3-BAC
挂膜
分子量分布
cellar rainwater treatment
03 - BAC
biofilm culturing
molecular weight distribution
