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Oxidative treatment of cyanide in wastewater using hydrogen peroxide and homogeneous catalyst.

Abstract

Batch kinetic tests were conducted to determine the effects of experimental conditions and catalysts on cyanide degradation. Cyanide degradation by hydrogen peroxide was found to follow first-order kinetics. Reaction rates increased with increasing pH and decreasing temperature. The activation energy for cyanide degradation by hydrogen peroxide was found to be -13.81 kJ/mol. The addition of Cu2+ or Cd2+ as catalysts resulted in increasing reaction rates. In alkaline conditions, the catalytic effects of Cu2+ or Cd2+ were accelerated and Cu2+ was found to be a more effective catalyst than Cd2+. The practical relevance of the laboratory oxidation method of cyanide was demonstrated for actual industrial wastewater.

Authors+Show Affiliations

Department of Environmental Science and Engineering, Ewha Womans University, Seoul, Korea.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15055942

Citation

Lee, Tae-Yoon, et al. "Oxidative Treatment of Cyanide in Wastewater Using Hydrogen Peroxide and Homogeneous Catalyst." Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering, vol. 39, no. 3, 2004, pp. 787-801.
Lee TY, Kwon YS, Kim DS. Oxidative treatment of cyanide in wastewater using hydrogen peroxide and homogeneous catalyst. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2004;39(3):787-801.
Lee, T. Y., Kwon, Y. S., & Kim, D. S. (2004). Oxidative treatment of cyanide in wastewater using hydrogen peroxide and homogeneous catalyst. Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering, 39(3), 787-801.
Lee TY, Kwon YS, Kim DS. Oxidative Treatment of Cyanide in Wastewater Using Hydrogen Peroxide and Homogeneous Catalyst. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2004;39(3):787-801. PubMed PMID: 15055942.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Oxidative treatment of cyanide in wastewater using hydrogen peroxide and homogeneous catalyst. AU - Lee,Tae-Yoon, AU - Kwon,Young-Shik, AU - Kim,Dong-Su, PY - 2004/4/2/pubmed PY - 2004/4/30/medline PY - 2004/4/2/entrez SP - 787 EP - 801 JF - Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering JO - J Environ Sci Health A Tox Hazard Subst Environ Eng VL - 39 IS - 3 N2 - Batch kinetic tests were conducted to determine the effects of experimental conditions and catalysts on cyanide degradation. Cyanide degradation by hydrogen peroxide was found to follow first-order kinetics. Reaction rates increased with increasing pH and decreasing temperature. The activation energy for cyanide degradation by hydrogen peroxide was found to be -13.81 kJ/mol. The addition of Cu2+ or Cd2+ as catalysts resulted in increasing reaction rates. In alkaline conditions, the catalytic effects of Cu2+ or Cd2+ were accelerated and Cu2+ was found to be a more effective catalyst than Cd2+. The practical relevance of the laboratory oxidation method of cyanide was demonstrated for actual industrial wastewater. SN - 1093-4529 UR - https://www.unboundmedicine.com/medline/citation/15055942/Oxidative_treatment_of_cyanide_in_wastewater_using_hydrogen_peroxide_and_homogeneous_catalyst_ L2 - https://www.tandfonline.com/doi/full/10.1081/ese-120027742 DB - PRIME DP - Unbound Medicine ER -