Original scientific paper

Patogenic bacteria in manure and digestate anaerobic digestion biogas production

Sonja Raić Bistrović ; Međimursko veleučilište u Čakovcu
Silvija Zeman ; Međimursko veleučilište u Čakovcu
Krunoslav Tomljenović ; Novi Agrar d.o.o.
Ana Vovk Korže ; Univerza v Mariboru, Filozofska fakulteta

Abstract

The production of biogas is of great importance in the cycle of sustainable use of agricultural biomass and organic animal waste as a renewable energy source on a farm. The biochemical process of anaerobic digestion (AD) of the process can significantly contribute to increasing the sanitary quality of digestate compared to raw manure. This paper compares the presence of four types of pathogenic bacteria in samples of fresh manure with a touch of herbal or industrial raw materials in relation to the digestate created by anaerobic digestion biogas plant Small Branjevina second in the field of northeastern Slavonia. Samples of raw materials are taken before and samples digestate after an anaerobic digestion. In both phases of sampling it is the raw material of about the same chemical composition: 80% bovine manure, 15% vegetable material and 5% of industrial waste of the food industry. Results confirmed the assumption of the expected significantly more pathogenic bacteria in the fresh manure compared with the digestate is almost sterile, sanitary, health and thus safer for people.

Keywords

organic waste; anaerobic digestion; digestate; bacteria

Hrčak ID:

172204

URI

https://hrcak.srce.hr/172204

Publication date:

20.12.2016.

Article data in other languages: croatian

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