改性粉煤灰对含磷废水的处理研究  

Research on Modified Fly Ash Treats for Phosphorus Wastewater

作　　者：闫玉兵 Yan Yubing(Department of Chemistry and Chemical Engineering,Lvliang College,Lvliang,Shanxi,China)

机构地区：[1]吕梁学院化学化工系,山西吕梁033000

出　　处：《矿产综合利用》2020年第5期34-44,共11页Multipurpose Utilization of Mineral Resources

基　　金：陕西省重点创新团队项目(2013KCT-06);陕西科技大学学术骨干培育计划项目(XSG(4)004)。

摘　　要：粉煤灰是电厂发电后的废弃物,废水中磷的含量过高将会导致水体的富营养化,用粉煤灰处理含磷废水可达到以废治废的目标。来自电厂的普通粉煤灰用于处理含磷废水的处理的效率比较低,但是改性的粉煤灰应用于含磷废水,磷的净化率明显提高且净化的速度也极大的提高。本文探究用各种方式改性粉煤灰,主要有硫酸、混合酸、氧化钙、赤泥和鸡蛋壳对粉煤灰进行改性用于含磷废水的处理。经净化的含磷废水基本都达到国家要求的排放标准。Fly ash is the waste from the power plant,high content of phosphorus of waste water will lead to water body eutrophication,and treating phosphorus wastewater with fly ash can reach the goal of the treatment of wastes with processes of wastes against one another.Ordinary fly ash from power plant has lower efficiency in the treatment of phosphorus wastewater,but the modified fly ash used in industrial waste water,improving greatly not only phosphorus wastewater purification rate but also the speed of purification.In this paper mainly explored various ways of modified fly ash,including sulfuric acid,mixed acid,calcium oxide,red mud and egg shells to modified fly ash,and modified fly ash was explored the treatment of wastewater containing phosphorus.The purification of wastewater containing phosphorus basically reached the requirements of the national discharge standard.

关 键 词：粉煤灰 含磷 工业废水 改性 

分 类 号：TD951[矿业工程—选矿]