PROCESS FOR TRANSFORMING SLUDGE CONTAINING VIRUSES, BACTERIA AND OTHER TOXIC COMPOUNDS INTO A SOLID, FRIABLE, ODORLESS AND ECOLOGICAL ACCEPTABLE PRODUCT, PRODUCT OBTAINED BY THIS PROCESS AND ITS APPLICATIONS

摘要

Treatment of aqueous sludge containing organic substances, viruses, bacteria and toxic metal compounds. The process consists of mixing the sludge with calcium oxide, which leads to an exothermic reaction releasing water vapor. The product obtained is solid, crumbly, substantially odorless and has a pH of at least 12, which deactivates bacteria and viruses. Toxic metallic compounds (lead, arsenic, etc.) are made insoluble in water by increasing pH. The invention also relates to the product obtained by this process and to a device for its implementation. /P P Application of the product, once compacted, to the realization of embankments or road infrastructures and, once neutralized with an acid, in the field of agriculture.