METHOD FOR PRODUCING SOLID FERTILIZER FROM ORGANIC SEWAGE SEDIMENT

摘要

The invention resolves the problem of producing solid fertilizer from organic sewage sediments which accrue in communal sewage treatment plants. According to the inventive method, the organic structures of biological origin are partially mineralized in the presence of a strong acid, preferably sulfuric acid. The solution obtained from this is neutralized, whereby the neutralization process is preferably carried out using magnesium compounds. A salt is obtained as a result of the neutralization process. Said salt binds the water from the reaction level and serves as a man-made fertilizer. The fertilizer is solid and can be easily granulated and used.