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Application of ferrate(VI) in the treatment of industrial wastes containing metal-complexed cyanides : a green treatment.
J Environ Sci (China). 2009; 21(10):1347-52.JE

Abstract

Ferrate(VI) was employed for the oxidation of cyanide (CN) and simultaneous removal of copper or nickel in the mixed/complexed systems of CN-Cu, CN-Ni, or CN-Cu-Ni. The degradation of CN (1.00 mmol/L) and removal of Cu (0.095 mmol/L) were investigated as a function of Fe(VI) doses from 0.3-2.00 mmol/L at pH 10.0. It was found that Fe(VI) could readily oxidize CN and the reduction of Fe(VI) into Fe(III) might serve efficiently for the removal of free copper ions. The increase in Fe(VI) dose apparently favoured the CN oxidation as well as Cu removal. Moreover, the pH dependence study (pH 10.0-13.0) revealed that the oxidation of CN was almost unaffected in the studied pH range (10.0-13.0), however, the maximum removal efficiency of Cu was obtained at pH 13.0. Similarly, treatment was carried out for CN-Ni system having the initial Ni concentration of 0.170 mmol/L and CN concentration of 1.00 mmol with Fe(VI) dose 2.00 mmol at various pH values (10.0-12.0). Results showed a partial oxidation of CN and partial removal of Ni. It can be observed that Fe(VI) can partially degrade the CN-Ni complex in this pH range. Further, Fe(VI) was applied for the treatment of simulated industrial waste/effluent waters treatment containing CN, Cu, and Ni.

Authors+Show Affiliations

Department of Environmental Engineering, Kwandong University, Gangneung 210-701, Korea. leesm@kd.ac.krNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19999988

Citation

Lee, Seung-Mok, and Diwakar Tiwari. "Application of ferrate(VI) in the Treatment of Industrial Wastes Containing Metal-complexed Cyanides : a Green Treatment." Journal of Environmental Sciences (China), vol. 21, no. 10, 2009, pp. 1347-52.
Lee SM, Tiwari D. Application of ferrate(VI) in the treatment of industrial wastes containing metal-complexed cyanides : a green treatment. J Environ Sci (China). 2009;21(10):1347-52.
Lee, S. M., & Tiwari, D. (2009). Application of ferrate(VI) in the treatment of industrial wastes containing metal-complexed cyanides : a green treatment. Journal of Environmental Sciences (China), 21(10), 1347-52.
Lee SM, Tiwari D. Application of ferrate(VI) in the Treatment of Industrial Wastes Containing Metal-complexed Cyanides : a Green Treatment. J Environ Sci (China). 2009;21(10):1347-52. PubMed PMID: 19999988.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Application of ferrate(VI) in the treatment of industrial wastes containing metal-complexed cyanides : a green treatment. AU - Lee,Seung-Mok, AU - Tiwari,Diwakar, PY - 2009/12/17/entrez PY - 2009/12/17/pubmed PY - 2010/1/14/medline SP - 1347 EP - 52 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 21 IS - 10 N2 - Ferrate(VI) was employed for the oxidation of cyanide (CN) and simultaneous removal of copper or nickel in the mixed/complexed systems of CN-Cu, CN-Ni, or CN-Cu-Ni. The degradation of CN (1.00 mmol/L) and removal of Cu (0.095 mmol/L) were investigated as a function of Fe(VI) doses from 0.3-2.00 mmol/L at pH 10.0. It was found that Fe(VI) could readily oxidize CN and the reduction of Fe(VI) into Fe(III) might serve efficiently for the removal of free copper ions. The increase in Fe(VI) dose apparently favoured the CN oxidation as well as Cu removal. Moreover, the pH dependence study (pH 10.0-13.0) revealed that the oxidation of CN was almost unaffected in the studied pH range (10.0-13.0), however, the maximum removal efficiency of Cu was obtained at pH 13.0. Similarly, treatment was carried out for CN-Ni system having the initial Ni concentration of 0.170 mmol/L and CN concentration of 1.00 mmol with Fe(VI) dose 2.00 mmol at various pH values (10.0-12.0). Results showed a partial oxidation of CN and partial removal of Ni. It can be observed that Fe(VI) can partially degrade the CN-Ni complex in this pH range. Further, Fe(VI) was applied for the treatment of simulated industrial waste/effluent waters treatment containing CN, Cu, and Ni. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/19999988/Application_of_ferrate_VI__in_the_treatment_of_industrial_wastes_containing_metal_complexed_cyanides_:_a_green_treatment_ L2 - https://medlineplus.gov/iron.html DB - PRIME DP - Unbound Medicine ER -