磷复肥生产排放的磷石膏废渣堆存占地，污染环境，已成为亟待解决的难题。利用磷石膏制硫酸与水泥，可消除污染，实现硫资源的良性循环，使经济效益、社会效益和环境效益有机统一，促进了磷复肥工业的可持续发展。

The waste residue discharged from the production of compound phosphate fertilizer occupies large area of land and pollutes surrounding environment, which causes environmental problems hard to control. However, environmental pollution can be minimized and effective utilization of sulphur resources is achieved by employing phosphorus gypsum to make sulphuric acid and cement. In doing so, the economic, social and environmental benefits can be gained simultaneously and sustainable development of the phosphorus compound fertilizer industry is greatly facilitated.