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Hazardous waste assessment and reduction options in an auto service station

Conference ·
OSTI ID:124546
; ;  [1]
  1. Univ. of Minnesota, Duluth, MN (United States). Dept. of Chemical Engineering
A hazardous waste assessment was performed and options for reduction of waste antifreeze and car wash wastewater were studied for Thompson`s Freeway Amoco, a gasoline station with a small repair shop and car wash, located in Duluth, Minnesota. In 1992, 1,310 gallons of waste aqueous antifreeze solution (50 vol% ethylene glycol, 50 vol% water), 6,580 gallons of waste oil, 138 gallons of waste parts washer solvent, and 2,702 lbs of waste oil filters, all classified as hazardous waste, were generated by this and three other sister stations of similar size under the same ownership. In addition, 779,810 gallons of car wash wastewater, not classified as hazardous waste, were also produced and discharged into the sewer. Various options were studied for reductions in waste antifreeze and car was wastewater by recycling and reuse. The economic evaluations are presented with the conclusions that on-site recycling of antifreeze is viable but not car wash wastewater recycling.
OSTI ID:
124546
Report Number(s):
CONF-940499--; ISBN 1-56590-014-6
Country of Publication:
United States
Language:
English

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