常州大学学报（自然科学版）2017，Vol.29Issue(4)：80-86,7.DOI:10.3969/j.issn.2095-0411.2017.04.013
羟基钙改性膨润土吸附含磷废水研究
Adsorption of Phosphorus Containing Wastewater by Hydroxide Calcium Modified Bentonite
摘要
Abstract
Hydroxyl calcium bentonite was prepared by semi-drying method, and the hydroxyl calcium bentonite was characterized by determination of anion capacity, calcium content, XRD and FTIR.Through a survey of initial concentration of pollutants, pH and temperature, the adsorption treatment of phosphorus wastewater by hydroxyl calcium bentonite was investigated.The results showed that the equilibrium time of hydroxyl calcium bentonite for phosphorus wastewater adsorption was 80 min, and the equilibrium adsorption amount increased with the increase of temperature.Under certain temperature, the adsorption capacity increases with the initial concentration of the solution, but the removal rate of P decreases with the initial P concentration increasing to a certain extent.The results have showed a growth trend in the adsorption of P with the increase of the pH.When the pH was 12.9, the removal rate reached 92.82%.关键词
羟基钙/改性膨润土/吸附/含磷废水Key words
hydroxidecalcium/modified bentonite/adsorption/phosphorus wastewater分类
资源环境引用本文复制引用
马建锋,刘青,冯婷..羟基钙改性膨润土吸附含磷废水研究[J].常州大学学报（自然科学版）,2017,29(4):80-86,7.基金项目
国家自然科学基金资助项目(21477009). （21477009）
