Abstract:

Phosphogypsum is a solid waste by-product from the processing of phosphate rock by fertilizer production and phosphoric acid production which polluted environment and occupied land. Nowadays, phosphogypsum is principally available in building materials, soil improvement and chemical production etc., however, there is only 30% of total content to be used for recycling. P, Mg, S, Fe, Si and other elements and Ca2 +, SO42-, are necessary for plant growth and soil improvement which are contained in phosphogypsum by previous studies, application of phosphogypsum can increase production of plant and improve level of soil environment, the role of it in agricultural production in many aspects of actual and potential applicable value. This paper expound the most lately research trends, which include agricultural production, soil improvement, biodegradable and security use of phosphogypsum and put forward the future of phosphogypsum application, some of the ideas are reasonable for application of phosphogypsum to support theoretical basis and practical reference.