Technical Background:

According to statistics, China’s cumulative phosphogypsum stockpile has reached 870 million metric tons, with an annual increase of nearly 80 million metric tons. Phosphogypsum, a solid waste generated during phosphate fertilizer production, is classified as Class II non-hazardous industrial solid waste. Currently, its valorization rate remains low, with most phosphogypsum disposed of via wet stacking. Leachate from these storage sites contains phosphates and fluorides, causing substantial pollution to water bodies and soil.

Technical Advantage:

Yichang Shengtron specializes in phosphorus chemical wastewater treatment and has independently developed an innovative "Chemical Precipitation + Membrane Separation" process, protected by a utility patent. This patented technology enables graded extraction of phosphorus and fluoride resources, achieving 100% recovery of phosphorus and fluoride. All reaction precipitates are recycled back into phosphorus chemical production, while treated effluent meets industrial discharge standards.