%0 Journal Article
%A CHEN  Xia
%A ZHOU  Xian
%A DENG  Shan-shan
%A PENG  Zi-ling
%A FAN  Ze-yu
%A GAO  Zhuo-fan
%A LU  Qi
%T State-of-Art and Prospect of Researches on Release and Diffusion of Phosphate Solid Wastes
%D 2025
%R 10.11988/ckyyb.20231092
%J Journal of Changjiang River Scientific Research Institute
%P 64-73
%V 42
%N 1
%X <p id="p00010">The diffusion of leachates from phosphate solid wastes is a major source of contaminants. Based on the existing and increment of phosphate solid waste in China as well as its environmental impacts, this study reviews the current status of researches on phosphate solid waste accumulation in China focusing on the composition, diffusion, and migration of leachates from phosphate solid wastes. More stringent requirements for leaching experiments and the design of impermeable barriers are essential as the permeability coefficient of impermeable materials may increase due to high pollutant concentration in leachate, low pH value of phosphogypsum, and large overburden pressure. Current researches on leachate release and diffusion often fail to replicate actual landfill conditions. Future studies should integrate field-specific parameters such as ambient temperature, rainfall infiltration, and effective stress from overburden weight. Thermal-humid-mechanical (THM) leaching test apparatus is also recommended for multifield coupling investigation. This approach will provide a more comprehensive theoretical understanding of leachate prevention and control in phosphate waste landfills.</p>
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20231092