Demonstration of the Performance of an Inclined Anaerobic Digester in Wine Stillage and Pea Blancher Wastewater Treatment |
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| Authors: | JAMES E. BUHLERT GEORGE K. YORK MICHAEL J. LEWIS |
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| Affiliation: | Authors Buhlert, York, and Lewis are with the Dept. of Food Science &Technology, Univ. of California, Davis, CA 95616. |
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| Abstract: | Disposal of high strength wastes has been a problem in the fruit and vegetable processing industries. We have designed and tested an inclined continuous anaerobic digester for the rapid treatment of unmodified wine stillage (21,000–25,000 mg COD per liter) and waste water from a pea blancher (20,000 mg COD per liter). The digester was successfully operated for periods up to 9 months using feed rates as high as 10.7g COD per liter per day (hydraulic detention time of 2.4 days). COD removal efficiency ranged from 95.9% to 99.5%, and effluent suspended solids were less than 800 mg per liter. |
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