摘要
针对再生水厂原水高色度、高COD的特殊水质,提出了高锰酸钾预氧化+预氯化协同预处理技术。研究结果表明,该预处理方法强化了混凝沉淀—微滤工艺对色度和COD的去除效果,同时提高了滤膜的反洗恢复率。结合水厂设备配置等因素,确定最佳预氯化投量为4~5 mg/L、最佳高锰酸钾投量为0.4~0.5 mg/L。
Considering the high color and high COD concentration in the reclaimed water, a pre- treatment process of potassium permanganate pre-oxidation coordinated with pre-chlorination was pro- posed. The process could improve the COD and color removal performance of coagulation sedimentation/ microfiltration system. Meanwhile, it could improve the backwashing efficiency of microfiltration system. Based on the equipment allocation and other factors, the optimal pre-chlorination dosage was proposed to be 4 to 5 mg/L, and the optimal potassium permanganate dosage was 0.4 to 0.5 mg/L.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第1期118-120,125,共4页
China Water & Wastewater
关键词
再生水
高锰酸钾预氧化
预氯化
reclaimed water
potassium permanganate pre-oxidation
pre-chlorination
