Phosphogypsum circulating water washing zero-emission method fused with electro-adsorption/desorption technology

The invention discloses an electro-adsorption/desorption technology fused ardealite circulating water washing zero-emission method. Purified ardealite is obtained in a repeated water washing mode; organic matters in the ardealite are separated out in the form of floating objects and are turned into activated carbon after heat treatment; treating the filtrate by using an electro-adsorption method, and enabling the obtained clear water to flow back to the washing tank to be used for washing the ardealite again; soluble ions in the filtrate are enriched through electro-adsorption/desorption to form high-concentration wastewater, quicklime is added to form defluorinated and dephosphorized filter residues which can be used as a phosphate fertilizer, the filtrate can be directly used as a potash fertilizer after being adsorbed by activated carbon, and the filtrate is used for washing phosphogypsum again. The method solves the problems of large water consumption and secondary pollution in the traditional ardealite w