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针对株洲市自来水公司湘江水源水和出厂水水质 ,进行强化混凝试验研究。试验表明 ,采用高锰酸钾 粉末活性炭联用组合工艺 ,对老水厂改造 ,提高除污去浊效率 ,确实是一种经济有效的手段。高锰酸钾作为强氧化剂 ,降解有机物效果较理想 ,粉末活性炭对水中的小分子有机物有很好的吸附作用 ,有利于去色除味。两者组合同时用于常规净水工艺流程 ,使之协同作用 ,效果更为显著。当原水CODMn为 4 0 3mg/L ,浊度为 30NTU ,UV2 54为0 33,NH3 -N为 0 4 6mg/L时 ,投加聚合氯化铝 2 0mg/L ,沉淀水相应水质参数分别为 :2 72mg/L ,1 86NTU ,0 0 88,0 2 8mg/L ,去除率分别为 32 5 % ,93 8% ,73 3% ,39 1% ;采用高锰酸钾 粉末活性炭联用组合工艺 ,高锰酸钾投加量0 2mg/L ,聚合氯化铝投加量 2 0mg/L ,粉末活性炭投加量10mg/L ,沉淀水相应水质参数分别为 :1 87mg/L ,1 4 3NTU ,0 0 3,0 2 0mg/L ,而滤后水相应水质参数为 :0 93mg/L ,0 81NTU ,0 0 3,0 19mg/L ,去除率为 76 5 % ,97 3% ,90 9% ,5 8 7%。强化混凝正交试验表明 :助凝剂、混凝剂投加顺序即投加点以及高锰酸钾投加量 ,对UV2 54,NH3 -N及浊度去除均有显著影响。高锰酸钾与聚合氯化铝同时投加 ,30s后再投加粉末活性炭 ,效果最好。
For Zhuzhou City Water Company Xiangjiang River source water and factory water quality, coagulation test. Experiments show that using potassium permanganate powder activated carbon combination process, the transformation of the old water plant to improve decontamination turbid efficiency, is indeed a cost-effective means. Potassium permanganate as a strong oxidant, the degradation of organic matter better, powder activated carbon adsorption of small molecules of organic matter in water has good adsorption, is conducive to the color in addition to taste. Combination of the two at the same time for the conventional water purification process, so that synergies, the effect is more pronounced. When the raw water CODMn is 403mg / L, the turbidity is 30NTU, UV2 54 is 0 33, NH3 -N is 0 46mg / L, polyaluminum chloride 20mg / L is added, the corresponding water quality parameters of the precipitated water are : 2 72mg / L, 1 86NTU, 0 0 88,0 2 8mg / L, the removal rates were 32 5%, 93 8%, 73 3%, 39 1% respectively; the combination of potassium permanganate powder activated carbon , Potassium permanganate dosage 0 2mg / L, polyaluminium chloride dosage 20mg / L, powdered activated carbon dosage 10mg / L, precipitation water corresponding water quality parameters were: 1 87mg / L, 1 4 3NTU , 0 0 3,0 20 mg / L respectively, and the corresponding water quality parameters of the filtered water were 0 93 mg / L, 0 81 NTU, 0 0 3,0 19 mg / L, removal efficiencies of 76 5%, 97 3%, 90 9 %, 588%. The coagulation orthogonal test showed that the order of coagulant and coagulant dosing and the dosing amount of potassium permanganate had a significant effect on the removal of UV2 54, NH3 -N and turbidity. Potassium permanganate and polyaluminum chloride dosing at the same time, 30s and then add powdered activated carbon, the best.