Effects of different nitrogen sources on the biogas production - a lab-scale investigation
메타 데이터
바이오화학분류
바이오정밀화학
연료
논문
Effects of different nitrogen sources on the biogas production - a lab-scale investigation
학술지
Microbiological research
저자명
Wagner, A.O.; Hohlbrugger, P.; Lins, P.; Illmer, P.
초록
For anaerobic digestion processes nitrogen sources are poorly investigated although they are known as possible process limiting factors (in the hydrolysis phase) but also as a source for fermentations for subsequent methane production by methanogenic archaea. In the present study different complex and defined nitrogen sources were investigated in a lab-scale experiment in order to study their potential to build up methane. The outcome of the study can be summarised as follows: from complex nitrogen sources yeast extract and casamino acids showed the highest methane production with approximately 600ml methane per mole of nitrogen, whereas by the use of skim milk no methane production could be observed. From defined nitrogen sources l-arginine showed the highest methane production with almost 1400ml methane per mole of nitrogen. Moreover it could be demonstrated that the carbon content and therefore C/N-ratio has only minor influence for the methane production from the used substrates.