芬顿–活性炭处理钾长石反浮选废水的研究

Study on Fenton-Activated Carbon Treatment of Potassium Feldspar Reverse Flotation Wastewater

本文研究Fenton-活性炭联合使用处理钾长石矿反浮选废水的高浓度COD值,并对处理条件进行优化,最终确定Fenton试剂的H2O2投加量为15 ml/L,n(H2O2):n(Fe2+) = 20,反应时间为70 min,溶液初始pH值为3。同时加入2.5活性炭。结果表明:Fenton试剂与活性炭分别单独使用能够降低COD值,去除率不高,但Fenton-活性炭联合使用会显著降低COD值,去除率可达97.35%。

In this paper, Fenton-activated carbon was used in combination to treat the high concentration COD value of K-feldspar mine reverse flotation wastewater, and the treatment conditions were optimized. The final dosage of Fenton reagent was 15 ml/L, n(H2O2):n(Fe2+) = 20, the response time was 70 min, and the initial pH of the solution is 3. At the same time, 2.5 g of activated carbon is added. The results show that Fenton reagent and activated carbon can reduce the COD value and the removal rate is not high, but the combination of Fenton-activated carbon can significantly reduce the COD value, and the removal rate can reach 97.35%.