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5. A textile dyeing factory produces effluent containing Zn2+, Ag+, and Cd2+ at concentrations of 30, 10, and 40 mg/L, respectively. The wastewater flow rate averages 350 m3/d. An ion exchanger with a capacity of 2.50 meq/g is to be used to remove these metals before discharge of the waste to the sewer. The exchange capacity of the resin on a volumetric basis is 1.5 meq/L. The regenerant solution will be HCI at a concentration of 40 g/L. a. What is the volume of the ion exchanger and mass of resin that is needed to remove these ions if the resin is to be regenerated once per month? b. What is the volume of regeneration using every month?

5. A textile dyeing factory produces effluent containing Zn2+, Ag+, and Cd2+ at concentrations of 30, 10, and 40 mg/L, respectively. The wastewater flow rate averages 350 m3/d. An ion exchanger with a capacity of 2.50 meq/g is to be used to remove these metals before discharge of the waste to the sewer. The exchange capacity of the resin on a volumetric basis is 1.5 meq/L. The regenerant solution will be HCI at a concentration of 40 g/L. a. What is the volume of the ion exchanger and mass of resin that is needed to remove these ions if the resin is to be regenerated once per month? b. What is the volume of regeneration using every month?

Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter2: Municipal Solid Waste Characteristics And Quantities
Section: Chapter Questions
Problem 2.16P
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5. A textile dyeing factory produces effluent containing Zn2+, Ag+, and Cd2+ at concentrations of 30, 10, and 40 mg/L, respectively. The wastewater flow rate averages 350 m3/d. An ion exchanger with a capacity of 2.50 meq/g is to be used to remove these metals before discharge of the waste to the sewer. The exchange capacity of the resin on a volumetric basis is 1.5 meq/L. The regenerant solution will be HCI at a concentration of 40 g/L. a. What is the volume of the ion exchanger and mass of resin that is needed to remove these ions if the resin is to be regenerated once per month? b. What is the volume of regeneration using every month?
Transcribed Image Text:5. A textile dyeing factory produces effluent containing Zn2+, Ag+, and Cd2+ at concentrations of 30, 10, and 40 mg/L, respectively. The wastewater flow rate averages 350 m3/d. An ion exchanger with a capacity of 2.50 meq/g is to be used to remove these metals before discharge of the waste to the sewer. The exchange capacity of the resin on a volumetric basis is 1.5 meq/L. The regenerant solution will be HCI at a concentration of 40 g/L. a. What is the volume of the ion exchanger and mass of resin that is needed to remove these ions if the resin is to be regenerated once per month? b. What is the volume of regeneration using every month?
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