武汉工程大学学报2012，Vol.34Issue(8)：19-23,5.DOI:10.3969/j.issn.1674-2869.2012.08.005
氢氧化镁处理含磷废水
Purification of phosphorus-containing wastewater with magnesium hydroxide
金士威 1赵淑荣 2周威1
作者信息
- 1. 武汉工程大学化工与制药学院,绿色化工过程教育部重点实验室,湖北武汉430074
- 2. 马兰里大学土木与环境工程系,美国马兰里州20742
- 折叠
摘要
Abstract
The influence of dosage of magnesium hydroxide, adsorption time, initial pH value of wastewater and reaction temperature on phosphorus removal was researched, and the adsorption isotherm also was determined, in order to study the adsorption capacity of magnesium hydroxide on phosphorus . The results showed that adsorption behavior of magnesium hydroxide on the phosphorus was well fitted with the Langmuir model, the adsorption process was a typical single molecular layer adsorption. And the Langmuir adsorption isotherm equation was calculated. When the concentration of initial phosphorus - containing wastewater was 0. 004 mg/ mL, the dosage of magnesium hydroxide was 0. 6 g/L, the reaction time was about just 5 minutes, the phosphorus removal could reach over 95 %. The reaction can be occurred at room temperature, and effect of temperature on the phosphorus removal is weak, in addition, experiments show that magnesium hydroxide has strong buffering capacity, the adsorption could occurred in a wide PH range, magnesium hydroxide could be reused after that phosphorus - containing wastewater was purified.关键词
氢氧化镁/含磷废水/去除率/吸附Key words
magnesium hydroxide/phosphoretted waste water/removal rate/adsorption分类
化学化工引用本文复制引用
金士威,赵淑荣,周威..氢氧化镁处理含磷废水[J].武汉工程大学学报,2012,34(8):19-23,5.
