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Ion exchange treatment of rinse water generated in the galvanizing process

Author:
Marañón Maison, María ElenaUniovi authority; Fernández Nava, YolandaUniovi authority; Castrillón Peláez, LeonorUniovi authority
Subject:

Rinse water

Acidic water

Zinc

Iron

Cationic resin

Ion exchange

Removal

Publication date:
2005
Editorial:

Water Environment Federation

Publisher version:
http://dx.doi.org/10.2175/106143005X73947
Citación:
Water Environment Research, 77 (7), p. 3054-3058 (2005); doi:10.2175/106143005X73947
Descripción física:
p. 3054-3058
Abstract:

A study was conducted of the viability of using the cationic exchange resins Amberlite IR-120 and Lewatit SP-112 to treat rinse water generated in the galvanizing process as well as acidic wastewater containing zinc (Zn) and iron (Fe). Solutions containing either 100 mg/L of Zn at pH 5.6 (rinse water) or Fe and Zn at concentrations of 320 and 200 mg/L at pH 1.5 (acidic water), respectively, were percolated through packed beds until the resins were exhausted. Breakthrough capacities obtained ranged between 1.1 and 1.5 meq metal/mL resin. The elution of metal and the regeneration of resins were performed with hydrochloric acid. The influence of the flowrate used during the loading stage was also studied, with 0.5 bed volumes/min (3.2 cm/min) found to be the optimum flowrate

A study was conducted of the viability of using the cationic exchange resins Amberlite IR-120 and Lewatit SP-112 to treat rinse water generated in the galvanizing process as well as acidic wastewater containing zinc (Zn) and iron (Fe). Solutions containing either 100 mg/L of Zn at pH 5.6 (rinse water) or Fe and Zn at concentrations of 320 and 200 mg/L at pH 1.5 (acidic water), respectively, were percolated through packed beds until the resins were exhausted. Breakthrough capacities obtained ranged between 1.1 and 1.5 meq metal/mL resin. The elution of metal and the regeneration of resins were performed with hydrochloric acid. The influence of the flowrate used during the loading stage was also studied, with 0.5 bed volumes/min (3.2 cm/min) found to be the optimum flowrate

URI:
http://hdl.handle.net/10651/29132
ISSN:
1061-4303
DOI:
10.2175/106143005X73947
Patrocinado por:

Foundation for the Support of Resarch in Applied Science and Technology (FICYT) and AGALSA (Ref.PA-MAS92-03)

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