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Aerosolv FAQ: Questions about spray can recycling Page 4 of 5 <br /> considered empty, and therefore exempt from regulation, were it not for the fact that the <br /> propellant compressed gas is reactive to heat and is still present in an empty can (40 CFR <br /> 261.23 (a) (6)). <br /> » Is the puncturing of aerosol cans with AEROSOLV considered treatment? <br /> No, however, according to the EPA's Office of Solid Waste: a steel aerosol can that does <br /> not contain a significant amount of liquid (e.g., a can that has been punctured and <br /> drained) would meet the definition of scrap metal (40 CFR 261.1(c) (6)), and, if it is to be <br /> recycled, would be exempt from regulation under 40 CFR 261.6(a) (3) (iv). Scrap metal <br /> that is recycled is exempt from RCRA regulation under this provision even if it is <br /> hazardous waste, so generators need not make a hazardous waste determination. <br /> In 1999 California EPA certified the Aerosolv process to eliminate the classification of <br /> treatment. <br /> » What does it cost to dispose of the collected liquids in the drum?? <br /> A Hazardous Waste handler will charge from $275 to $350 per 55-gallon drum for proper <br /> transportation and recycling, reclamation and/or disposal. This represents the total <br /> disposal cost for the residual liquids of 4,200 spent aerosol cans. This compares ? to solid <br /> waste disposal cost for the residual liquids of 4,200 spent aerosol cans. This compares to <br /> solid waste disposal cost of unpunctured aerosol cans of $650 to $1,200 per 96 cans! On a <br /> direct comparison of 4,200 spent cans, the cost saving with AEROSOLV ranges form <br /> $28,000 to $52,000. <br /> Filter <br /> » How does the filter work?? <br /> It is composed of two parts: a coalescing lower portion and an activated carbon upper <br /> portion. The coalescing portion collects microscopic airborne liquids from the gas and <br /> combines them into droplets which collect within the filter chamber. The activated carbon <br /> adsorbs hydrocarbons and removes odor from the "dry" gas which has passed through the <br /> coalescing portion. It effectively reduces VOC's from the escaping gas, resulting in total <br /> hydrocarbon emissions 75% less than the 300 ppm desired limitations. <br /> » Does any compressed gas remain in the drum?? ? <br /> The compressed gas seeks escape through the point of least resistance, which is the filter. <br /> However, a minimal amount of gas may remain in the drum. By leaving the "last" can <br /> punctured within the AEROSOLV housing until puncturing is resumed, an effective <br /> prolonged seal can be maintained. <br /> » Can pressure build in the drum?? ? <br /> 10/21/2010 <br />