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提出了一种在湿法磷酸和过磷酸钙生产中,利用磷矿粉中的少量碳酸盐中和处理磷肥厂氟硅酸钠母液和硫酸厂稀酸,达到全部代替清水调磷矿浆,既解决了污水污染,又节约了硫酸资源。通过计算说明可做到酸碱平衡和水平衡,实现污水零排放,并分析了回收利用酸性污水带来的经济效益。
A wet phosphoric acid and superphosphate production, the use of a small amount of phosphate rock phosphate neutralization treatment of phosphate fertilizer plant sodium fluosilicate mother liquor and sulfuric acid plant dilute acid, to replace all of the water to adjust the phosphate pulp, Not only to solve the sewage pollution, but also save the sulfuric acid resources. Through the calculation shows that acid-base balance and water balance can be achieved to achieve zero discharge of sewage, and analyzed the economic benefits of recycling acid wastewater.