Development of a biotechnological procedure for treatment of animal wastes to obtain inexpensive biofertilizer |
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| Authors: | Adriana Gousterova Maya Nustorova Plamen Christov Peter Nedkov Georgi Neshev Evgenia Vasileva-Tonkova |
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| Institution: | (1) Institute of Microbiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 26, 1113 Sofia, Bulgaria;(2) University of Forestry, 10 Kliment Ohridski Blvd., 1156 Sofia, Bulgaria;(3) Institute of Organic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 9, 1113 Sofia, Bulgaria;(4) Agricultural University, 12 Mendeleev Blvd., 4000 Plovdiv, Bulgaria |
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| Abstract: | A biotechnological procedure based on alkaline hydrolysis has been developed for effective processing of various types industrial
animal wastes to convert them into a low cost high value biodegradable end product. It was demonstrated in laboratory scale
experiments that the bioproduct obtained positively influenced microbial soil populations and ryegrass growth in both soils
used, park soil and mine spoils. As the remaining partially degraded waste residue is highly dispersed it should act as a
slow release fertilizer, thus feeding plants additionally. Therefore, the protein hydrolysate obtained is suitable for application
as a harmless and valuable biofertilizer. The proposed method for solubilization of proteinaceous wastes is simple and economically
viable making its implementation easier on an industrial scale. Therefore, the method could be of great help to the enterprises
of the meat industry, avoiding using landfills and incineration. |
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| Keywords: | Animal wastes Alkaline hydrolysis Biofertilizer Ryegrass growth Microbiological analysis |
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