System Identification: Mixing/holding tanks & heat exchanger on wash water recycling process Solids/Liquid: Sand & grit/Municipal water, recycled Problem: Shaker screens, though seemingly an “industry standard” in the industrial laundry business, became an increasingly troublesome and intensive maintenance problem for ALSCO Linen in Edmonton, Alberta, Canada. Important to remove solids prior to mixing/holding tank (to prevent unwanted solids acc

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