engleski

Alkaline hydrolysis of animal waste as pre-treatment in production of fermented fertilizers

Slaughterhouse waste in Europe is most commonly processed in rendering houses. Apperance of bovine spongiform enephalopathy, has resulted in prohibition of using meat bone meal in animal nutrition as a by-product of rendering. It is a fact that sloughterhouse waste is highly valuable raw material, as well as alkaline hydrolysis as a method for the remediation of slaughterhouse waste or meat bone meal. In the process of alkaline hydolysis, slaughterhouse waste is mixed with alkali NaOH/KOH and boiled for 3-6 hours at temperature of 150C and pressure of 4 bars. The resulting chemical compound is a neutral or partially alkaline solution of organic sustances suitable for anaerobic microbiological decomposition, or a valuable raw material for anaerobic digestion and very good fertilizer.

alkaline hydrolysis; slaughterhouse waste; biogas; fertilizer

Rad je prezentiran na skupu " VII. Alps-Adria Scientific Workshop" odrzanom od 28.04.-02.05.2008. ; Stara Lesna, Slovačka.