摘要
为寻求改善乡村微污染饮用水水质的有效方法，结合粗滤慢滤工艺研究的实践，阐述了该工艺氨氮的去除规律以及与溶解氧的关系，提出需氧量的估算方法。研究结果表明，粗滤慢滤工艺具有良好的去除ＮＨ３Ｎ能力，其效率主要受溶解氧的限制，实用工艺中，停留时间及水温对其影响不大。该工艺可直接应用于乡村饮用水的处理。
To find an effective process of improving drinking water quality in rural area,it was made to investigate into the process of roughing filtration and slowsand filtration.This paper presented the mechanism of ammoniumnitrogen removal and the relationship between removal efficiency and dissolved oxygen;also put forward a method of determining the oxygen demand. The results indicate that roughing filtration and slowsand filtration can remove NH3N effectively;DO affects the rate of NH3N removal;and meanwhile, HRT and water temperature have slight influence on practical process. This process is a preferable choice for countryside water treatment plants.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1998年第4期319-323,共5页
China Environmental Science
基金
江苏省科委资助
关键词
粗滤
给水处理
过滤
饮用水
除氨
除氮
roughing filtration slowsand filtration ammoniumnitrogen water supply countryside water plant
