聚合双酸铝铁-次氯酸钙联用处理淀粉废水的研究

Treatment of Starch Production Wastewater by Polymer Aluminum Ferric Sulfate Chloride-calcium Hypochlorite

采用聚合双酸铝铁和次氯酸钙联用处理玉米淀粉废水,研究了聚合双酸铝铁投加量、次氯酸钙投加量、pH值及温度对废水处理效果的影响.实验结果表明,当聚合双酸铝铁投加量为0.6 g/L,次氯酸钙投加量为6 g/L,搅拌后静置120 min,水样COD去除率为74.55%,处理后水样清澈透明,pH值6～7.

The combined process of polymer aluminum ferric sulfate chloride （PAFSC） and calcium hypochlorite has been used for treating starch production wastewater, the effects of PAFSC dosage, calcium hypochlorite dosage, pH value and temperature on the wastewater treatment were studied. The experimental results show that, when the PAFSC dosage is 0.6 g/L, calcium hypochlorite dosage is 6 g/L, after mixing static 120 rain, the removal rate of COD in wastewater is 74.55% with the clear water, and pH value is 6-7.