Feasibility of combining reverse osmosis-ferrite process for reclamation of metal plating wastewater and recovery of heavy metals

Seungjoon Chung, Seungjin Kim, Jong Oh Kim, Jinwook Chung

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The feasibility of reverse osmosis (RO) separation combined with ferrite reaction was investigated for the reclamation and recovery of heavy metals from metal plating wastewater. Disc tube-type RO modules were used for simultaneous purification and concentration of wastewaters containing zinc and chromium ions. A subsequent ferrite reaction was performed to recover zinc ions from RO concentrates. The operating conditions of the RO and ferrite reaction were determined in several lab-scale experiments with several types of model wastewater. Pilot-scale RO test results revealed that the zinc plating wastewater treated by one-pass RO and the chrome plating wastewater treated by two-pass RO were acceptable for preplating rinsewater. After ferrite reaction, 99.7% of zinc ions were recovered from the second-stage RO concentrate in the form of zinc ferrite, while significant amounts of chromium ions were retained in the concentrate. As a result of economic analysis, we suggested a retrofitting option, including a combined RO and ferrite process, for a wastewater treatment facility in a local metal plating company.

Original languageEnglish
Pages (from-to)15192-15199
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume53
Issue number39
DOIs
StatePublished - 2014 Jan 1

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Reclamation
Reverse osmosis
Heavy Metals
Plating
Heavy metals
Ferrite
Wastewater
Recovery
Zinc
Ions
Chromium
Zinc plating
Retrofitting
Economic analysis
Wastewater treatment
Purification

Cite this

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abstract = "The feasibility of reverse osmosis (RO) separation combined with ferrite reaction was investigated for the reclamation and recovery of heavy metals from metal plating wastewater. Disc tube-type RO modules were used for simultaneous purification and concentration of wastewaters containing zinc and chromium ions. A subsequent ferrite reaction was performed to recover zinc ions from RO concentrates. The operating conditions of the RO and ferrite reaction were determined in several lab-scale experiments with several types of model wastewater. Pilot-scale RO test results revealed that the zinc plating wastewater treated by one-pass RO and the chrome plating wastewater treated by two-pass RO were acceptable for preplating rinsewater. After ferrite reaction, 99.7{\%} of zinc ions were recovered from the second-stage RO concentrate in the form of zinc ferrite, while significant amounts of chromium ions were retained in the concentrate. As a result of economic analysis, we suggested a retrofitting option, including a combined RO and ferrite process, for a wastewater treatment facility in a local metal plating company.",
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Feasibility of combining reverse osmosis-ferrite process for reclamation of metal plating wastewater and recovery of heavy metals. / Chung, Seungjoon; Kim, Seungjin; Kim, Jong Oh; Chung, Jinwook.

In: Industrial and Engineering Chemistry Research, Vol. 53, No. 39, 01.01.2014, p. 15192-15199.

Research output: Contribution to journalArticle

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