摘要
研究了高锰酸钾与水合二氧化锰联用强化聚合氯化铝(PAC)混凝微污染地表水的效果。结果表明:与PAC单独混凝相比,强化混凝可将浊度去除率提高约3%,TOC去除率提高约30%;在浊度去除率相同的情况下,强化混凝工艺可节省约36%的PAC用量;当进水pH值及腐殖酸浓度在一定范围内变化时,强化混凝工艺对浊度和TOC的去除效果优于相同投加量的PAC,具有较强的抗水质变化冲击能力。
The efficiency enhanced coagulation of micro-polluted surface water with PAC by combination of KMnO4 and hydrated manganese dioxide was investigated. The result showed that, the enhanced coagulation improved the turbidity removal by about 3% , and the TOC removal by about 30%, compared with solely PAC coagulation. To achieve the same turbidity removal, PAC dosage could be saved 36% using enhanced coagulation process. The average turbidity removal of enhanced coagulation was higher than that of PAC under the conditions of varied pH and humic acid concentrations. This indicated that the enhanced coagulation process had a strong endurance on water quality changes.
出处
《供水技术》
2010年第1期1-4,共4页
Water Technology
基金
广东省产学研项目(2009B0903003)
佛山市禅城区产学研项目(2009B1042)
关键词
微污染水
强化混凝
高锰酸钾
水合二氧化锰
浊度
TOC
micro-polluted water
enhanced coagulation
potassium permanganate
hydrated manganese dioxide
turbidity
TOC
