次氯酸钠预氧化处理微污染水源水的试验  

Experiment of treatment of slightly polluted source water using sodium hypochlorite pre-oxidation process

作　　者：杨涛[1] 傅金祥[1] 梁建浩[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168

出　　处：《工业用水与废水》2005年第6期14-16,共3页Industrial Water & Wastewater

摘　　要：通过静态试验,分别研究了氧化时间、水温、氧化剂投加量等因素对次氯酸钠预氧化效果的影响。试验结果表明,在原水水质pH值为7.8～8.2,浊度为6.0～18.0NTU,CODMn的质量浓度为4.2～6.7mg/L,UV254值为0.094～0.141,水温为6.0～15.0℃时,次氯酸钠投加量12.5mg/L,经20min氧化后,CODMn去除率达到25%左右,再经过混凝沉淀后,CODMn去除率达60%左右。The effects of oxidation time, water temperature, dosage of oxidant and some other factors on the results of the sodium hypochlorite pre-oxidation were studied respectively through the static test. The results of the test show that, under the condition that the pH value of the raw water is 7.8 - 8.2, the turbidity is 6.0 - 18.0 NTU, the mass concentration of CODMn is 4.2 - 6.7 mg/L, the value of UV254 is 0.094 - 0.141, the water temperature is 6.0 - 15.0 ℃, 12.5 mg/L of sodium hypochlorite is added, the removal rate of CODMn reaches about 25% after 20 min of oxidation, and then through the coagulation-sedimentation, the removal rate of CODMn reaches about 60%.

关 键 词：微污染水源水 预氧化 次氯酸钠 

分 类 号：X703.1[环境科学与工程—环境工程]