O_3和PPC联合预氧化对原水的中试研究

Study on pilot treatment of raw water by combined pre-oxidation process of ozone and potassium permanganate compound

采用臭氧(O3 )和高锰酸盐复合药剂(PPC)联合预氧化对T市饮用水的原水进行了中试处理试验,预氧化投加量分别为1mg/L的O3 +1mg/L的PPC和1mg/L的O3 +0. 5mg/的PPC.结果表明:两种组合投加量联合预氧化对浊度有明显的助凝作用,对UV254去除率分别达到37. 4300和23. 0400,并使气浮出水达到CODMn≤3mg/L的要求,但是对TOC几乎没有去除.

In this pilot treatment, the raw water of drinking water in T city was treated by the combined pre-oxidation process of ozone(O_3) and potassium permanganate compound(PPC).And the dosages of pre-oxidation are 1 mg/L of O_3+1 mg/L of PPC and 1 mg/L of O_3+0.5 mg/L of PPC respectively.Results indicate that the coagulation-aid effect of the combination of the two composite dosage pre-oxidation on the turbidity is obvious and the removal rates of UV_(254) reache( 37.43~0_0) and (23.04~0_0) respectively.Also, the effluent COD_(Mn) after flotation is not more than 3 mg/L, which is guaranteed to meet the sanitary criteria.But the TOC almost can’t be removed.