Abstract
A project is described in which a full-scale anaerobic digestion facility was used to produce biogas fuel from raw whey at a cheese factory. The purpose of the project was to optimize the operation of the full-scale facility through achievement of the design loadings, thereby generating the best economic return for the facility. Several nutrient/buffer supplement additions were evaluated at lab-scale in an attempt to devise a solution for the full-scale facility. The supplements used in this study included municipal digester supernatant from a municipal wastewater treatment plant, digested swine manure from a hog farm and caustic (NaOH). In addition, the project examines the effects of operating at thermophilic (55{sup 0}) temperature, the effect of daily additions of supplement versus weekly additions of supplement and the difference between complete mix operation and fixed film operation. The test with NaOH indicated that prolonged use caused sodium toxicity in the reactor. Loadings up to 75% of design loading were obtained with daily additives of 15% municipal digester supernatant, while those obtained with daily addition of 15% digested swine manure exceeded design loadings. Loadings obtained with thermophilic temperatures approximately equaled those obtained with mesophilic temperatures. Some initial difficulty was experienced with full-scale start-up.
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Citation Formats
Adams, G P.
Final report on the monitoring and optimization of the anaerobic digestion of whey at Millbank Cheese and Butter Ltd.
Canada: N. p.,
1987.
Web.
Adams, G P.
Final report on the monitoring and optimization of the anaerobic digestion of whey at Millbank Cheese and Butter Ltd.
Canada.
Adams, G P.
1987.
"Final report on the monitoring and optimization of the anaerobic digestion of whey at Millbank Cheese and Butter Ltd."
Canada.
@misc{etde_5080232,
title = {Final report on the monitoring and optimization of the anaerobic digestion of whey at Millbank Cheese and Butter Ltd}
author = {Adams, G P}
abstractNote = {A project is described in which a full-scale anaerobic digestion facility was used to produce biogas fuel from raw whey at a cheese factory. The purpose of the project was to optimize the operation of the full-scale facility through achievement of the design loadings, thereby generating the best economic return for the facility. Several nutrient/buffer supplement additions were evaluated at lab-scale in an attempt to devise a solution for the full-scale facility. The supplements used in this study included municipal digester supernatant from a municipal wastewater treatment plant, digested swine manure from a hog farm and caustic (NaOH). In addition, the project examines the effects of operating at thermophilic (55{sup 0}) temperature, the effect of daily additions of supplement versus weekly additions of supplement and the difference between complete mix operation and fixed film operation. The test with NaOH indicated that prolonged use caused sodium toxicity in the reactor. Loadings up to 75% of design loading were obtained with daily additives of 15% municipal digester supernatant, while those obtained with daily addition of 15% digested swine manure exceeded design loadings. Loadings obtained with thermophilic temperatures approximately equaled those obtained with mesophilic temperatures. Some initial difficulty was experienced with full-scale start-up. The optimized anaerobic digestion and energy recovery facility has an estimated net annual energy recovery of 5,252 GJ. 27 refs., 16 figs., 8 tabs}
place = {Canada}
year = {1987}
month = {Mar}
}
title = {Final report on the monitoring and optimization of the anaerobic digestion of whey at Millbank Cheese and Butter Ltd}
author = {Adams, G P}
abstractNote = {A project is described in which a full-scale anaerobic digestion facility was used to produce biogas fuel from raw whey at a cheese factory. The purpose of the project was to optimize the operation of the full-scale facility through achievement of the design loadings, thereby generating the best economic return for the facility. Several nutrient/buffer supplement additions were evaluated at lab-scale in an attempt to devise a solution for the full-scale facility. The supplements used in this study included municipal digester supernatant from a municipal wastewater treatment plant, digested swine manure from a hog farm and caustic (NaOH). In addition, the project examines the effects of operating at thermophilic (55{sup 0}) temperature, the effect of daily additions of supplement versus weekly additions of supplement and the difference between complete mix operation and fixed film operation. The test with NaOH indicated that prolonged use caused sodium toxicity in the reactor. Loadings up to 75% of design loading were obtained with daily additives of 15% municipal digester supernatant, while those obtained with daily addition of 15% digested swine manure exceeded design loadings. Loadings obtained with thermophilic temperatures approximately equaled those obtained with mesophilic temperatures. Some initial difficulty was experienced with full-scale start-up. The optimized anaerobic digestion and energy recovery facility has an estimated net annual energy recovery of 5,252 GJ. 27 refs., 16 figs., 8 tabs}
place = {Canada}
year = {1987}
month = {Mar}
}