Intermittent-vacuum assisted thermophilic co-digestion of corn stover and liquid swine manure: Salinity inhibition

Renchuan Zhang; Erik Anderson; Paul Chen; Min Addy; Yanling Cheng; Lu Wang; Yuhuan Liu; Roger Ruan

doi:10.1016/j.biortech.2018.09.071

Intermittent-vacuum assisted thermophilic co-digestion of corn stover and liquid swine manure: Salinity inhibition

Renchuan Zhang, Erik Anderson, Paul Chen, Min Addy, Yanling Cheng, Lu Wang, Yuhuan Liu, Roger Ruan

Bioproducts and Biosystems Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this study, the effects of Intermittent-Vacuum Stripping (IVS) on activities of methanogenesis in co-digestion of corn stover with liquid swine manure (LSM + CS) under thermophilic anaerobic digestion (TAD) conditions were evaluated. A 65% methanogenesis activity inhibition was observed in pretreated LSM plus corn stover (pLSM + CS), while 60 and 165 mL/L/day CH ₄ productions were achieved in pLSM + CS and LSM + CS, respectively. The high salinity condition (5.28%) after IVS pretreatment was considered the primary inhibitor in pLSM + CS, while the ammonia (≤600 mg/L), C:N ratio (15.52) and volatile solid loading rate (3 g/kg ⁻¹ ·day ⁻¹ ) didn't show a negative effect on CH ₄ production. When salinities were increased from 2% to 4% and 8%, 50% and 100% inhibition were observed respectively. The butyrate accumulation was a potential indicator of the non-salinity-inhibition status for methanogenesis in TAD.

Original language	English (US)
Pages (from-to)	16-23
Number of pages	8
Journal	Bioresource Technology
Volume	271
DOIs	https://doi.org/10.1016/j.biortech.2018.09.071
State	Published - Jan 2019

Bibliographical note

Funding Information:
Funding for this project was provided in part by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) and University of Minnesota Center for Biorefining.

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

Intermittent-Vacuum Stripping (IVS)
Lignocellulose utilization
Salinity inhibition
Thermophilic anaerobic co-digestion

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10.1016/j.biortech.2018.09.071

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title = "Intermittent-vacuum assisted thermophilic co-digestion of corn stover and liquid swine manure: Salinity inhibition",

abstract = " In this study, the effects of Intermittent-Vacuum Stripping (IVS) on activities of methanogenesis in co-digestion of corn stover with liquid swine manure (LSM + CS) under thermophilic anaerobic digestion (TAD) conditions were evaluated. A 65% methanogenesis activity inhibition was observed in pretreated LSM plus corn stover (pLSM + CS), while 60 and 165 mL/L/day CH 4 productions were achieved in pLSM + CS and LSM + CS, respectively. The high salinity condition (5.28%) after IVS pretreatment was considered the primary inhibitor in pLSM + CS, while the ammonia (≤600 mg/L), C:N ratio (15.52) and volatile solid loading rate (3 g/kg −1 ·day −1 ) didn't show a negative effect on CH 4 production. When salinities were increased from 2% to 4% and 8%, 50% and 100% inhibition were observed respectively. The butyrate accumulation was a potential indicator of the non-salinity-inhibition status for methanogenesis in TAD. ",

keywords = "Intermittent-Vacuum Stripping (IVS), Lignocellulose utilization, Salinity inhibition, Thermophilic anaerobic co-digestion",

author = "Renchuan Zhang and Erik Anderson and Paul Chen and Min Addy and Yanling Cheng and Lu Wang and Yuhuan Liu and Roger Ruan",

note = "Funding Information: Funding for this project was provided in part by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) and University of Minnesota Center for Biorefining. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

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doi = "10.1016/j.biortech.2018.09.071",

language = "English (US)",

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T2 - Salinity inhibition

AU - Zhang, Renchuan

AU - Anderson, Erik

AU - Chen, Paul

AU - Addy, Min

AU - Cheng, Yanling

AU - Wang, Lu

AU - Liu, Yuhuan

AU - Ruan, Roger

N1 - Funding Information: Funding for this project was provided in part by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) and University of Minnesota Center for Biorefining. Publisher Copyright: © 2018 Elsevier Ltd

PY - 2019/1

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N2 - In this study, the effects of Intermittent-Vacuum Stripping (IVS) on activities of methanogenesis in co-digestion of corn stover with liquid swine manure (LSM + CS) under thermophilic anaerobic digestion (TAD) conditions were evaluated. A 65% methanogenesis activity inhibition was observed in pretreated LSM plus corn stover (pLSM + CS), while 60 and 165 mL/L/day CH 4 productions were achieved in pLSM + CS and LSM + CS, respectively. The high salinity condition (5.28%) after IVS pretreatment was considered the primary inhibitor in pLSM + CS, while the ammonia (≤600 mg/L), C:N ratio (15.52) and volatile solid loading rate (3 g/kg −1 ·day −1 ) didn't show a negative effect on CH 4 production. When salinities were increased from 2% to 4% and 8%, 50% and 100% inhibition were observed respectively. The butyrate accumulation was a potential indicator of the non-salinity-inhibition status for methanogenesis in TAD.

AB - In this study, the effects of Intermittent-Vacuum Stripping (IVS) on activities of methanogenesis in co-digestion of corn stover with liquid swine manure (LSM + CS) under thermophilic anaerobic digestion (TAD) conditions were evaluated. A 65% methanogenesis activity inhibition was observed in pretreated LSM plus corn stover (pLSM + CS), while 60 and 165 mL/L/day CH 4 productions were achieved in pLSM + CS and LSM + CS, respectively. The high salinity condition (5.28%) after IVS pretreatment was considered the primary inhibitor in pLSM + CS, while the ammonia (≤600 mg/L), C:N ratio (15.52) and volatile solid loading rate (3 g/kg −1 ·day −1 ) didn't show a negative effect on CH 4 production. When salinities were increased from 2% to 4% and 8%, 50% and 100% inhibition were observed respectively. The butyrate accumulation was a potential indicator of the non-salinity-inhibition status for methanogenesis in TAD.

KW - Intermittent-Vacuum Stripping (IVS)

KW - Lignocellulose utilization

KW - Salinity inhibition

KW - Thermophilic anaerobic co-digestion

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Intermittent-vacuum assisted thermophilic co-digestion of corn stover and liquid swine manure: Salinity inhibition

Abstract

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