聚合硫酸铝处理含锰废水的研究

The study on the treatment of poly alumirlillm sulfate To Mn2+ containing wastewater

通过静态吸附试验研究了聚合硫酸铝(PAS)对废水中Mn2+的吸附性能,主要探讨了pH值、沉淀时间、投加量、初始浓度等因素对吸附效果的影响。结果表明:聚合硫酸铝对含锰废水具有良好的处理效果,当pH值为9-11时,去除率达96.59%;当废水中锰初始浓度为0.2298mg·L-1时,处理后其浓度降至0.0424mg·L-1,去除率为81.55%;当初始浓度为2.2978mg·L-1时,水中剩余锰浓度为0.1451mg·L-1,去除率为93.68%;废水中石灰乳投加含量为300mg·L-1时,当聚合硫酸铝投加量为600mg·L-1时处理效果最好,去除率达97.22%;温度对PAS处理含锰废水效果影响不显著。

We have study the adsorption property of PAS on Mn2＋ in wastewater by the static experimen.t And investigate the influence of pH value, initial concentration, dosage, temperature conditions and kinetic on adsorption effect. The results show that PAS have excellent effect on disposing manganese, the removing rate is up to 96.59%; the initial concentration of manganese is 0.2298mg·L^-1, the concentration is 0.0424mg/L after disposing, the removing rate is 81.55%; the initial concentration is 2.2978 mg·L^-1, the residual concentration is 0.1451mg·L^-1, the removing rate is 93.68%; The dosage of lime milk is 300mg/L have the best result when the dosage of PAS is 600mg·L^-1, the removing rate is 97.22%; temperature have slender influence on manganese wastewater.