Following is a diagram of the shirt-cleaning process used
Chapter 4, Problem 4.37(choose chapter or problem)
Following is a diagram of the shirt-cleaning process used by the Floods of Suds One-Day Laundry Services, Inc. The shirts are soaked in an agitated tub containing Whizzo, the Wonder Detergent, and are then wrung out and sent to a rinse stage. The dirty Whizzo is sent to a filter in which most of the dirt is removed, and the cleaned detergent is recycled back to join a stream of pure Whizzo, with the combined stream serving as the feed to the washtub. Wh Dirty shirts Clean shirts AGITATED Pure Wh 97% Wh TUB 87% Wh 8% Wh FILTER Recycled Wh Data: 1. Each 100 Ibm of dirty shirts contains 2.0 Ibm of dirt. 2. The washing removes 95% of the dirt in the dirty shirts. 3. For each 100 Ibm of dirty shirts, 25 Ibm of Whizzo leaves with the clean shirts, of which 22 Ibm is wrung back into the tub. 4. The detergent that enters the tub contains 97% Whizzo, and that which enters the filter contains 87%. The wet dirt that leaves the filter contains 8.0% Whizzo. 170 Chapter 4 Fundamentals of Material Balances Encyclopedia Equipment filter, stripping column, extractor (3) How much pure Whizzo must be supplied per 100 Ibm of dirty shirts? (b) What is the composition of the recycled stream?
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