Assessment of biogas production and microbial ecology in a high solid anaerobic digestion of major California food processing residues

TY - JOUR

T1 - Assessment of biogas production and microbial ecology in a high solid anaerobic digestion of major California food processing residues

AU - Achmon, Yigal

AU - Claypool, Joshua T.

AU - Pace, Sara

AU - Simmons, Blake A.

AU - Singer, Steven W.

AU - Simmons, Christopher W.

N1 - Publisher Copyright: © 2018 Elsevier Ltd

PY - 2019/2

Y1 - 2019/2

N2 - High-solids anaerobic digestion (HSAD) was performed using mixtures of tomato or grape pomace, dry bovine manure and mature green waste compost at a total solids content of 28%. Various feedstock loading levels (FLL) were tested over multiple fed-batch cycles. TP showed greater methane yield at 201.61 mL/g dry pomace when digested at a mesophilic temperature with 5% (by dry weight) FLL. Methane yield from GP was approximately 132 mL/g_dry pomace in both thermophilic and mesophilic conditions with up to 5% FLL. 16S rRNA gene sequencing of the different HSAD systems was used to profile bacteria and archaea. The results showed shifts between Methanoculleus and Methanosarcina genera in response to feedstock and operating temperature. These data can enable additional studies to scale up HSAD of these waste streams, optimize HSAD conditions for improved yield and stability, and understand the microbiota structures that relate to HSAD performance.

AB - High-solids anaerobic digestion (HSAD) was performed using mixtures of tomato or grape pomace, dry bovine manure and mature green waste compost at a total solids content of 28%. Various feedstock loading levels (FLL) were tested over multiple fed-batch cycles. TP showed greater methane yield at 201.61 mL/g dry pomace when digested at a mesophilic temperature with 5% (by dry weight) FLL. Methane yield from GP was approximately 132 mL/g_dry pomace in both thermophilic and mesophilic conditions with up to 5% FLL. 16S rRNA gene sequencing of the different HSAD systems was used to profile bacteria and archaea. The results showed shifts between Methanoculleus and Methanosarcina genera in response to feedstock and operating temperature. These data can enable additional studies to scale up HSAD of these waste streams, optimize HSAD conditions for improved yield and stability, and understand the microbiota structures that relate to HSAD performance.

KW - Archaeal Community

KW - Biogas Quality

KW - Grape Pomace

KW - High Solid Anaerobic Digestion

KW - Tomato Pomace

UR - http://www.scopus.com/inward/record.url?scp=85060924122&partnerID=8YFLogxK

U2 - 10.1016/j.biteb.2018.11.007

DO - 10.1016/j.biteb.2018.11.007

M3 - 文章

AN - SCOPUS:85060924122

SN - 2589-014X

VL - 5

SP - 1

EP - 11

JO - Bioresource Technology Reports

JF - Bioresource Technology Reports

ER -