摘要
以石英砂为载体,用碱性沉积法制备了铝盐改性砂,在静态试验条件下,考察了铝盐改性砂对锌的吸附性能及其影响因素。结果表明,在pH值为中性的条件下,铝盐改性砂的吸附效果优于石英原砂,石英原砂对Zn2+去除率为41%,铝盐改性砂对Zn2+去除率可达到68%;随着Zn2+初始浓度的增大,铝盐改性砂对Zn2+的去除率逐渐减少;铝盐改性砂对Zn2+的去除率随着pH值的升高而提高,当pH为9时,去除率接近100%。
In this experiment quartz sand was chosen as a carrier to be coated by aluminous salt with the deposition process at alkaline condition,and then the adsorption capability and influencing factors for zinc removal by aluminous salt modified sand were investigated respectively.The experimental results showed that the adsorption capability of aluminous salt modified sand was significantly improved,and the removal efficiency of Zn2+ by aluminous salt modified sand was much better than that by raw quartz sand und...
出处
《能源环境保护》
2009年第2期26-28,32,共4页
Energy Environmental Protection
基金
浙江省科技计划项目资助(2007C33056)
浙江工业大学环境工程重中之重学科开放基金资助
关键词
铝盐改性砂
制备
除锌
吸附性能
aluminous salt modified sands
preparation
zinc removal
adsorption capability
