论文部分内容阅读
采用铁炭法对自来水厂进水突发性磷污染的去除进行研究,考察了主要影响因素和可行性。结果表明,在100 m L浓度为1.0 mg/L的含磷水中,投加铁炭总量为1.50 g,m(Fe)/m(C)为3∶2,反应时间为60 min时,TP去除率为97%。在此最佳条件下,铁炭法的总铁溶出量最大值为3.86 mg/L,比单独铁屑法高16%。总铁溶出量越多,对总磷的去除效果越好。在此基础上进行动态连续试验,流量为330 m L/h,ρ(TP)<1.0 mg/L,连续运行2个月后,出水ρ(TP)为0.15~0.20 mg/L,满足饮用水源水标准。该方法在实验室环境下取得了较好的处理效果,具有处理成本低廉,操作简单,以废治废和无二次污染的优点。
Iron and carbon method was used to study the removal of sudden phosphorus pollution from the water intake of waterworks. The main influencing factors and feasibility were investigated. The results showed that when the total amount of iron was 1.50 g, the ratio of m (Fe) / m (C) was 3: 2 and the reaction time was 60 min, the concentration of TP The removal rate was 97%. Under the optimal conditions, the maximum iron dissolution of the iron-carbon method was 3.86 mg / L, which was 16% higher than that of the iron filings alone. The more total iron dissolution, the better the removal of total phosphorus. On the basis of this, the dynamic continuous test was carried out with the flow rate of 330 m L / h and ρ (TP) <1.0 mg / L. After continuous operation for 2 months, the effluent ρ (TP) was 0.15-0.20 mg / Source water standard. The method has achieved good treatment effect in the laboratory environment, has the advantages of low processing cost, simple operation, waste treatment and no secondary pollution.