在"十四五"大宗固体废弃物综合利用背景下,磷石膏无害化处理及资源化利用受到重视.基于当前形势,以磷石膏资源化利用前的预处理为切入点,详细介绍磷石膏中杂质组成及危害,对磷石膏预处理方法物理法、化学法、热处理法、生物法等进行归纳分析.通过对预处理方法特点分析,提出磷石膏预处理及资源化利用研究展望.
In the context of comprehensive utilization of bulk solid waste during the"14th Five Year Plan"period,the harmless treatment and resource utilization of phosphogypsum have received great attention.Based on the current form,taking the pretreatment of phosphogypsum before resource utilization as the starting point,the composition and harm of impurities in phosphogypsum are introduced,and the physical method,chemical method,heat treatment method,biological method and other pretreatment methods of phosphogypsum are summarized and analyzed.By analyzing the characteristics of the pretreatment methods,the prospects for pretrement and resource utilization of phosphogypsum are proposed.