摘要
研究了采用高锰酸钾预氧化与污泥回流联用工艺对低浊微污染原水的处理效果。结果表明,采用污泥回流可有效改善沉后水浊度,最佳回流比为60%,沉后水浊度从无回流时的1.91NTU下降到1.51NTU;粉末活性炭与污泥一同回流能改善滤后水有机物的去除效果。投加高锰酸钾进一步提高了处理效果,污泥回流则强化了高锰酸钾的助凝除浊效果,使有机物去除作用更显著。
A process of potassium permanganate preoxidation combined with sludge return was applied to treat the low turbidity,micro-polluted raw water.The results showed that the turbidity of settled water could effectively be improved when the optimal sludge return ratio was 60%,and the turbidity of settled water decreased from 1.91 NTU to 1.51 NTU with the sludge return.Meanwhile the removal of organic matters could be improved by return of powdered activated carbon with sludge.The efficiency could be further improved by dosing potassium permanganate.The efficiency of coagulation and turbidity removal could be enhanced by sludge return,therefore the removal of organic matters was significant.
出处
《供水技术》
2010年第2期12-14,共3页
Water Technology
关键词
低浊微污染水
污泥回流
粉末活性炭
高锰酸钾
low turbidity micro-polluted water
sludge return
powdered activated carbon
potassium permanganate
