Testing and Evaluation of an Alcohol Production Facility Utilizing Potatoes as a Feedstock
Auteur : William Kuby, Steve Nackord, Walter Wyss
Date de publication : 1984
Éditeur : Industrial Environmental Research Laboratory, Office of Research and Development, U. S. Environmental Protection Agency
Nombre de pages : 45
Résumé du livre
This study presents the sampling and analysis results for the characterization of the liquid effluents and solid residuals from a process in which culled potatoes are used as a feedstock for the production of ethanol fuel. Gaseous emissions were not studied. The facility, located in eastern Idaho, produces approximately 1 million gallons of ethanol per year. The effluents were sampled in December 1981. Liquid and solid samples were taken from sluice/flume water, chopper product, makeup water, cooker product, fermenter product, beer tank, stillage, interim and final product, washwater, fusel oil, acid bath and Sparkle* bath. The effluents from the plant were analyzed for ethanol and sugar content, conventional parameters, metals, cyanide, phenols, nutrients, oil and grease, priority pollutant organics and selected pesticides. The effluents from this plant in general showed the following significant characteristics: oxygen demand (TOC, COD, BOD), solids (TSS, TS, specific conductance), nutrients (nitrogen and phosphorus) and metals (Al, Cd, Ca, Cr, Fe, Mg. Mn, Hg, Ti, and Zn).