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Journal of Biotechnology and Phytochemistry| Volume: 2

October 25-26, 2018 | Frankfurt, Germany

Joint Event

Biotechnology & Medical Microbiology

World Congress on

International Conference on

Food Science & Technology

Biological pretreatment of lignocellulosic material for increased biogas production by anaerobic

digestion

Jaron C Hansen

Brigham Young University, USA

ithoutpretreatment,anaerobicdigestionoflignocellulosic

material typically converts only one-third of the carbon

into biogas which is typically only 60% methane. Physical and

chemical pretreatments to increase biogas production from

biomass have proven to be uneconomical. The anaerobic

thermophile, Caldicellulosiruptor bescii, has been shown to be

capable of solubilizing up to 90% of lignocellulose, thus making

the carbon accessible for anaerobic digestion. Preliminary

experiments showC. bescii is capableof solubilizingawide range

of lignocellulosic materials. Anaerobic digestion readily and

rapidly converts the soluble products into biogas with 70-80%

methane. Isothermal microbiocalorimetry measurements have

provided a thermodynamic understanding of the process. We

have applied the pretreatment/anaerobic digestion process to

giant king grass, corn mash, corn stover, waste activated sludge

(WAS), almond shells and algae and found the biogas yield

significantly improved. Results from experiments conducted

using isothermal microbiocalorimetry as well as larger-scale 30L

and 60L reactor pretreatment/anaerobic digestion experiments

will be presented

Speaker Biography

Jaron C Hansen is a Professor of Chemistry and Biochemistry at Brigham Young

University (Provo, Utah, USA) and Co-founder of Verde and Anaerobic Digestion

Technologies (AD Tec). His research involves improving the understanding of

atmospheric and environmental chemical processes through focused laboratory, field

and computational studies as well as the development of improved anaerobic digestion

methods for enhanced production of biogas and for degradation of waste substrates.