摘要
以鄂州膨润土为吸附剂,对武汉市南湖水中的磷进行吸附处理。通过单因素实验,确定适宜的吸附条件:当水体中磷的初始浓度为1.108 mg/L时,在搅拌时间为15 min,膨润土的投加量为2.0 g/L,搅拌速度为200 r/min,pH值为4.2～7.4的条件下,膨润土对南湖水中磷的去除率可达到98%以上,吸附容量为0.543 mg/g,并通过红外光谱分析了吸附剂的变化特征。实验表明,鄂州膨润土可应用于磷污染的湖泊水体的治理。试验结果对于进一步拓展鄂州膨润土的应用具有一定的指导意义。
Adsorption process of phosphorus in water of South Lake in Wuhan was studied by using the bentonite from Ezhou as adsorbing agent. By single factor experimental analysis, the most appropriate adsorption condition was determined, that was, when the initial concentration of phosphorus in the lake water was 1. 108 mg/L,the stirring time was 15 min,the dosage of bentonite was 2.0 g/L,the stirring speed was 200 r/min, and the pH of solution was from d. 2 to 7.4, the removal rate of phosphorus in lake water could achieve over 98% and the adsorption capacity was 0.543 mg,/g. The changes of adsorbent were analyzed by infrared spectroscopy. The experimental results showed that Ehou bentonite could be used in disposing the phosphorus -polluted lake water, and had some guiding significance for further expanding the application of Ezhou bentonite.
出处
《矿业研究与开发》
CAS
北大核心
2012年第6期79-82,共4页
Mining Research and Development
基金
国家大学生创新性实验项目(101049760)
关键词
膨润土
湖水
磷污染
吸附
武汉南湖
Bentonite, Lake water, Phosphorus pollution, Adsorption,South Lake in Wuhan
