磷石膏在公路建设中的循环利用研究现状

Research Status of Phosphogypsum Recycling in Highway Construction

磷石膏是湿法生产磷酸产生的工业副产物。目前,我国湖北、贵州、云南、四川等省份堆存着大量磷石膏,既占用土地,又存在较大的环境安全风险。文章在总结磷石膏主要研究及应用现状的基础上,对存在的问题和进一步发展方向提出建议。

Phosphogypsum is an industrial by-product of wet-process phosphoric acid production.At present,Hubei,Guizhou,Yunnan,Sichuan and other provinces accumulate a large amount of phosphogypsum,which not only occupies land,but also poses greater environmental safety risks.This article summarized the main research and application status of phosphogypsum,and put forward suggestions for existing problems and further development directions.