Liming an anaerobic cheese whey digester

E. J. Fox; C. J. Clanton; P. R. Goodrich; B. D. Backus; H. A. Morris

Liming an anaerobic cheese whey digester

E. J. Fox, C. J. Clanton, P. R. Goodrich, B. D. Backus, H. A. Morris

Bioproducts and Biosystems Engineering

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

5 Scopus citations

Abstract

A 6-L digester was used to investigate how lime affected anaerobic digestion of sweet cheese whey. The lime-buffered digester was operated at 6.40-, 4.20- and 3.25-day hydraulic retention times (RT). Calcium concentrations ranged from 5540 mg·L^-1 at 6.40-day RT to 24 900 mg·L^-1 at a 3.25-day RT. The digester had a COD reduction of 40 and 61% at RT of 3.25 and 6.40 days. The digester produced an average of 1790 L CH₄·m^-3·d^-1, 13.9 times the average production of similar non-lime-buffered digesters, with an average of 82% CH₄ in the biogas.

Original language	English (US)
Pages (from-to)	269-274
Number of pages	6
Journal	Transactions of the American Society of Agricultural Engineers
Volume	35
Issue number	1
State	Published - Jan 1 1992

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abstract = "A 6-L digester was used to investigate how lime affected anaerobic digestion of sweet cheese whey. The lime-buffered digester was operated at 6.40-, 4.20- and 3.25-day hydraulic retention times (RT). Calcium concentrations ranged from 5540 mg·L-1 at 6.40-day RT to 24 900 mg·L-1 at a 3.25-day RT. The digester had a COD reduction of 40 and 61% at RT of 3.25 and 6.40 days. The digester produced an average of 1790 L CH4·m-3·d-1, 13.9 times the average production of similar non-lime-buffered digesters, with an average of 82% CH4 in the biogas.",

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AU - Fox, E. J.

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AU - Goodrich, P. R.

AU - Backus, B. D.

AU - Morris, H. A.

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N2 - A 6-L digester was used to investigate how lime affected anaerobic digestion of sweet cheese whey. The lime-buffered digester was operated at 6.40-, 4.20- and 3.25-day hydraulic retention times (RT). Calcium concentrations ranged from 5540 mg·L-1 at 6.40-day RT to 24 900 mg·L-1 at a 3.25-day RT. The digester had a COD reduction of 40 and 61% at RT of 3.25 and 6.40 days. The digester produced an average of 1790 L CH4·m-3·d-1, 13.9 times the average production of similar non-lime-buffered digesters, with an average of 82% CH4 in the biogas.

AB - A 6-L digester was used to investigate how lime affected anaerobic digestion of sweet cheese whey. The lime-buffered digester was operated at 6.40-, 4.20- and 3.25-day hydraulic retention times (RT). Calcium concentrations ranged from 5540 mg·L-1 at 6.40-day RT to 24 900 mg·L-1 at a 3.25-day RT. The digester had a COD reduction of 40 and 61% at RT of 3.25 and 6.40 days. The digester produced an average of 1790 L CH4·m-3·d-1, 13.9 times the average production of similar non-lime-buffered digesters, with an average of 82% CH4 in the biogas.

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Liming an anaerobic cheese whey digester

Abstract

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