摘要
针对高浓度含磷废水重点考察了电解工艺过程中pH值、铁磷元素摩尔比以及曝气量等主要参数变化对除磷效率的影响。结果表明,废水中的高浓度磷在短时间内能得到去除,电解除磷过程中最佳pH值范围为5.5～6.5,初始pH值越低越有利于除磷;最佳铁磷摩尔比[Fe]:[P]=3;最佳曝气量为1.5L空气/(min·L水)。
Electrolysis experiments had been carried out on high strength of phosphate wastewater. Effects of pH value, the needed [Fe]： [P] and aeration rate on removal of phosphate by electrolysis had been studied. Experimental results showed that high strength phosphate could be removed by electrolysis in short time, the optimal range of pH value was 5.5-6.5, and the lower initial pH value was, the better results could be obatained. The optimal [Fe]： [P] ratio was 3：1 and the appropriate aeration rate in removal process was 1.5L （air）/（min. L（water））.
出处
《净水技术》
CAS
2009年第1期43-46,共4页
Water Purification Technology
基金
国家"十五"重大科技专项(2002AA601021)
关键词
高浓度含磷废水
除磷
电化学
电解
high strength of phosphate wastewater phosphate removal electro-chemical treatment electrolysis
