Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane

C. J. Rivard; M. E. Himmel; T. B. Vinzant; W. S. Adney; C. E. Wyman; K. Grohmann

doi:10.1007/BF02936503

Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane

C. J. Rivard, M. E. Himmel, T. B. Vinzant, W. S. Adney, C. E. Wyman, K. Grohmann

National Renewable Energy Laboratory

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

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Abstract

Economic evaluations of the capital costs for anaerobic digestion systems for gas production show that the reactor is a significant cost component. The successful application of high solids digestion of processed MSW (e.g., greater than 10% solids within the digester) would allow a decrease in reactor volume with maintenance of relatively high gas production rates. However, high solids slurries do not mix well in conventional stirred tank reactors. A horizontal shaft, hydraulically driven reactor was designed and fabricated to test the anaerobic digestion of high solids concentrations. Digester performance was evaluated as a function of experimental parameters such as nutrient requirements, feeding rates, pH control, and agitator design/ rotation speed; horsepower of mixing was also evaluated for the reactor. Several startup protocols were examined to obtain a biologically stable anaerobic fermentation at high solids levels.

Original language	American English
Pages (from-to)	461-478
Number of pages	18
Journal	Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology
Volume	20-21
Issue number	1
DOIs	https://doi.org/10.1007/BF02936503 https://doi.org/10.1007/BF02936503
State	Published - 1989

NREL Publication Number

ACNR/JA-232-11332

Keywords

anaerobic digestion
digester design
High solids
methane
municipal solid waste

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Rivard, C. J., Himmel, M. E., Vinzant, T. B., Adney, W. S., Wyman, C. E., & Grohmann, K. (1989). Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane. Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology, 20-21(1), 461-478. https://doi.org/10.1007/BF02936503, https://doi.org/10.1007/BF02936503

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Rivard, CJ, Himmel, ME, Vinzant, TB, Adney, WS, Wyman, CE & Grohmann, K 1989, 'Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane', Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology, vol. 20-21, no. 1, pp. 461-478. https://doi.org/10.1007/BF02936503, https://doi.org/10.1007/BF02936503

Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane. / Rivard, C. J.; Himmel, M. E.; Vinzant, T. B. et al.
In: Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology, Vol. 20-21, No. 1, 1989, p. 461-478.

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

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T1 - Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane

AU - Rivard, C. J.

AU - Himmel, M. E.

AU - Vinzant, T. B.

AU - Adney, W. S.

AU - Wyman, C. E.

AU - Grohmann, K.

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AB - Economic evaluations of the capital costs for anaerobic digestion systems for gas production show that the reactor is a significant cost component. The successful application of high solids digestion of processed MSW (e.g., greater than 10% solids within the digester) would allow a decrease in reactor volume with maintenance of relatively high gas production rates. However, high solids slurries do not mix well in conventional stirred tank reactors. A horizontal shaft, hydraulically driven reactor was designed and fabricated to test the anaerobic digestion of high solids concentrations. Digester performance was evaluated as a function of experimental parameters such as nutrient requirements, feeding rates, pH control, and agitator design/ rotation speed; horsepower of mixing was also evaluated for the reactor. Several startup protocols were examined to obtain a biologically stable anaerobic fermentation at high solids levels.

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KW - digester design

KW - High solids

KW - methane

KW - municipal solid waste

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Development of a Novel Laboratory Scale High Solids Reactor for Anaerobic Digestion of Processed Municipal Solid Wastes for the Production of Methane

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Keywords

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