Environmentally Friendly Concept of Phosphogypsum Recycling on the Basis of the Biotechnological Approach

Abstract

From the viewpoint of environmental security it is important to review the life cycle of phosphorite raw material transformation, from extraction to its use in the chemical industry with the forming of both useful products and secondary raw materials/waste, primarily upon the production of phosphate fertilizers with the forming of large-tonnage waste—phosphogypsum. The annually worldwide production of phosphogypsum is possibly up to 100 million tons. This paper focuses on the environmental analysis of chemical wastes as resource of technogenic genesis. To achieve the aim, the following tasks are set: the environmental impact analysis of the extraction and treatment process of phosphorous raw materials; alternatives in the field of phosphogypsum recycling within the framework of the concept of environmentally safe waste treatment development; the expediency of phosphogypsum use in environmental protection technologies. Thereupon, analytical study considers not only the accumulation of production waste in the environment, but also the products derived from this production waste when using it as a secondary raw material. Also the study includes analyses of features factors and practical recommendations for the implementation of a business strategy for different products from phosphogypsum.