摘要
从膜生物反应器的类型、气水比和粉末活性炭的投加浓度等方面研究了控制膜污染的方法。结果表明 ,最优的一体式和分置式膜生物反应器的类型是不同的 ;大的气水比有利于减轻膜的污染 ,但在一定的水质条件下 ,增大曝气量所引起的膜通量减少速度是有限的 ;投加适量的粉末活性炭 ,可减缓膜污染 ,但投量过大时 。
Through the study of the type of membrane bioreactor, air-water ratio as well as concentration of powdered activated carbon, the methods of preventing membrane fouling are studied.The results show that incorporate membrane bioreactor and separate membrane bioreactor have different optimal types.Increasing the air-water ratio can alleviate membrane fouling,but under a settled water quality,the velocity of reducing membrane flux is very limited by increasing air quantity.Adding powdered activated carbon can alleviated membrane fouling,but excess powdered activated carbon can also accelerate membrane fouling.
出处
《环境工程》
CAS
CSCD
北大核心
2004年第6期15-16,共2页
Environmental Engineering
基金
北京市教育委员会科技发展计划项目资助
