Two competing methods of utilization of waste sulfuric acids were presented. One of them deals with substitution of technical acid used for decomposition of phosphate rock with the slight amounts of the product utilized, and afterwards production from formed in this manner phosphoric acid triple superphosphate (TSP). The fertilizer underwent detailed physicochemical analysis that confirmed its full fertilizer applicability. In the second method, sulfuric acid was introduced in the stage of storage to swine manure, that was furtherly used as the basis for the production of liquid mineral-organic fertilizers.