煤渣对水中氨氮和总磷吸附的试验研究

摘要

对煤渣吸附污染水源水中氨氮和总磷的影响因素进行研究.采用静态试验的方法,分别考察了煤渣粒径、反应接触时间、煤渣投加量、原水氨氮和总磷浓度以及反应温度等因素对吸附效果的影响.结果表明,吸附最佳条件:煤渣粒径为＞10～15 mm,吸附时间为13h,煤渣投入量为50 g/L.在进水总磷、氨氮质量浓度分别为0.5、5 mg/L时,煤渣对总磷、氨氮的去除率分别为46.4％和8.3％.%The adsorption of ammonia nitrogen and phosphorus in water by cinders is studied. The effects of cinder particle size, contact time, cinder addition amount, ammonia nitrogen and phosphorus concentrations, and reaction temperature on adsorption are investigated. The optimum experimental conditions are as follow; the cinder particle size is 10-15 mm, adsorption time is 13 h, cinder addition amount is 50 g/L. The removal rates of phosphorus and ammonia nitrogen are 46. 4% and 8. 3% respectively when phosphorus and ammonia nitrogen concentrations in water are 0. 5 and 5 mg/L respectively.