Obtaining of Suspension Fertilizers from Incinerated Sewage Sludge Ashes (ISSA) by a Method of Solubilization of Phosphorus Compounds by Bacillus megaterium Bacteria

The article presents research results on obtaining phosphorus suspension fertilizers on the basis of microbiologically activated sewage sludge ashes and Morocco phosphate rock. The fertilizers were manufactured with the use of a laboratory reactor, as well as an experimental pilot plant for liquid fertilizers production and then subjected to physicochemical properties tests that have allowed to asses the quality of the obtained products and to appoint new directions for further research on obtaining phosphorus suspension fertilizers on the basis of microbiologically activated renewable resources of phosphorus. The tests have confirmed that it is possible to produce phosphate fertilizer suspension by using the Bacillus megaterium for solubilization of phosphorus, and that the process is not complicated. However, obtained fertilizers are characterized by low P 2 O 5 content.