Biogas production: current state and perspectives
Anaerobic digestion of energy crops, residues, and wastes is of accelerating interest so as to cut back the greenhouse emission emissions and to facilitate a property development of energy offer. Production of biogas provides a flexible carrier of renewable energy, as methane series will be used for replacement of fossil fuels in each heat and power generation and as a vehicle fuel. For biogas production, varied method sorts square measure applied which might be classified in wet and dry fermentation systems. most frequently applied square measure wet steriliser systems mistreatment vertical stirred tank steriliser with completely different stirrer sorts keen about the origin of the feedstock. [1]
Pretreatment of Lignocellulosic Wastes to Improve Ethanol and Biogas Production: A Review
Lignocelluloses are usually a serious or typically the only real parts varied} waste streams from various industries, forestry, agriculture and municipalities. reaction of those materials is that the opening for either digestion to biogas (methane) or fermentation to fermentation alcohol. However, catalyst reaction of lignocelluloses with no pretreatment is typicallymetimes} not so effective thanks to high stability of the materials to enzymatic or microorganism attacks. this work is devoted to reviewing the ways that are studied for pretreatment of lignocellulosic wastes for conversion to fermentation alcohol or biogas. Effective parameters in pretreatment of lignocelluloses, like crystallinity, accessible area, and protection by polymer and hemicellulose are represented 1st. [2]
Trace compounds of biogas from different biogas production plants
Biogas composition and variation in 3 totally different biogas production plants were studied to supply info touching on its potential use as biofuel. Methane, greenhouse gas, oxygen, nitrogen, volatile organic compounds (VOCs) and sulphur compounds were measured in samples of biogases from a lowland, sewerage treatment plant sludge steriliser and farm biogas plant. methane series content ranged from forty eighth to sixty fifth, greenhouse gas from twelve months to forty first and chemical element from. [3]
Intrinsic molecular insights to enhancement of biogas production from kitchen refuse using alkaline-microwave pretreatment
The current study analyzed and optimized the concentration of NaOH for base-forming pretreatment of room refuse for biogas production. Also, the advantages of microwave help in increased biogasification of room refuse were evaluated. The TS, VS and structural changes were compared mistreatment customary experimental techniques. Molecular dynamics was investigated for the molecular level changes resulting in higher biogasification in NaOHmicrowave combined pretreatment. The methane series and biogas yields were calculated to validate the advantages of microwave help in economical biogasification. [4]
Characterization of Spent Bleaching Earth and Its Utilization for Improving Manure-based Biogas Production
Aim of the Study: To utilize spent mud (SBE) to enhance biogas production potency through co-digesting with manure and supply a sensible means of disposing the SbE.
Design of the Study: The SbE was collected from 2 edible oil refineries in Dar-es salaam, Tanzania. Composition was analysed in triplicate to work out its suitableness for biogas production. Thereafter, the SbE was mixed with manure at (%) zero, 10, 20, 30, 40, fifty and a hundred for biogas production. [5]
Reference
[1] Weiland, P., 2010. Biogas production: current state and perspectives. Applied microbiology and biotechnology, 85(4), pp.849-860. (Web Link)
[2] Taherzadeh, M. and Karimi, K., 2008. Pretreatment of lignocellulosic wastes to improve ethanol and biogas production: a review. International journal of molecular sciences, 9(9), pp.1621-1651. (Web Link)
[3] Rasi, S., Veijanen, A. and Rintala, J., 2007. Trace compounds of biogas from different biogas production plants. Energy, 32(8), pp.1375-1380. (Web Link)
[4] Intrinsic molecular insights to enhancement of biogas production from kitchen refuse using alkaline-microwave pretreatment
Puneet Kumar Singh, Suresh K. Verma, Sanjay Kumar Ojha, Pritam Kumar Panda, Haragobinda Srichandan, Ealisha Jha & Snehasish Mishra
Scientific Reportsvolume 9, Article number: 5968 (2019) (Web Link)
[5] P. Moshi, A. (2017) “Characterization of Spent Bleaching Earth and Its Utilization for Improving Manure-based Biogas Production”, Biotechnology Journal International, 17(4), pp. 1-13. doi: 10.9734/BJI/2017/31601. (Web Link)
