角蛋白与聚合硫酸铁复配体系处理选煤废水的研究

Coal preparation wastewater treatment with compound system of feather keratin assistant and polymeric ferric sulfate

采用单因素实验方法,以选煤废水为研究对象,将鸡毛角蛋白助剂与聚合硫酸铁复配体系用于选煤废水处理,研究复配体系对选煤废水的处理效果.结果表明：复配体系的最佳配置为鸡毛角蛋白助剂0.2 g/L,聚合硫酸铁0.025 g/L,且该复配体系实现了在碱性条件下高效处理选煤废水.该复配体系处理选煤废水的最佳工艺条件为：室温下,选煤废水在pH值为7～8的条件下,投加角蛋白复配体系并搅拌,搅拌速度为120 r/min,反应后沉降30 min,此时,SS（固体悬浮物）去除率达到92％以上.

Investigate the properties of compound system of feather keratin assistant and polymeric ferric sulfate （PFS） in coal preparation wastewater treatment through single factor experiment. The results show that, when the mass concentration of feather keratin assistant, PFS is O. 2 g/L, 0. 025 g/L, the treatment effects is the best. The compound system also can work well in alkaline solution. When the pH of wastewater is between 7 and 8, inject the compound system, then stir, keeping the stirring speed being 120 r/min, settle for 30 minutes after the reaction. The suspended solid （SS） removal rate can reach above 92 percent.