摘要
对采用悬浮填料的生物接触氧化原水预处理技术的影响因素进行了探讨。分析了自然挂膜条件下的工艺启动过程,研究了停留时间、气水比、温度、浊度条件对污染物去除效果的影响。通过夏、秋、冬季的中试运行效果表明:停留时间为60min,生物预处理装置对污染物的去除具有较好的效果;温度低于8.5℃,对氨氮去除效果影响较大;浊度对本工艺运行影响不大;气水比为0.375,足够满足生物预处理的运行。
The affected factors of polluted source water bio-pretreatment by suspended packing were discussed, including retention time, ratio between airflow and water flow, temperature and turbidity. From the result of pilot scale experiment in Huangpu River source water bio-pretreatment could be drawn that the removal efficiency of pollutants was better under 60 min retention time, the removal efficiency of NH4-N decreased a lot if the temperature of source water was below 8.5 ℃, the removal efficiency has only little dependence on turbidity, and the ratio between airflow and water-flow was 0.375 could guarantee the removal efficiency of this facility.
出处
《上海环境科学》
CAS
CSSCI
CSCD
北大核心
2002年第12期738-741,共4页
Shanghai Environmental Sciences
