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Application of advanced oxidation processes for the treatment of cyanide containing effluent.
Environ Technol. 2003 Oct; 24(10):1269-76.ET

Abstract

Batch experiments were carried out for the removal of cyanide in the effluent of plating industry by the application of advanced oxidation processes. Four systems with different modes of oxidation in combination of ultra violet (UV) light with hydrogen peroxide and/or ozone were investigated. Of all the applied systems, UV-light with two oxidants, i.e. O3 (32 mg min(-1)), and H2O2 (1.36 g l(-1)) was found successful in bringing down the amount of cyanide from 157.32 mg l(-1) to 1.0 mg l(-1), which is the limit set by the Ministry of Environment of Korea for cyanide-containing discharges. Other systems, however, could not bring the cyanide abatement to the targeted value even with higher dosage of oxidants and an extended period of reaction time. Regardless of the oxidation modes applied, all the heavy metal ions in the treated effluent were reduced to 90%. Ultra violet light with the combination of two oxidants had the economic preference over the other systems since a relatively lower dosage of UV-light (2484 W-S cm(-2)) was found effective at achieving the targeted level of cyanide removal.

Authors+Show Affiliations

Kim YJ
Department of Environmental Engineering, Kyungpook National University, Daegu 702-701, South Korea.
Qureshi TI
No affiliation info available
Min KS
No affiliation info available

MeSH

CyanidesElectroplatingHydrogen PeroxideIndustrial WasteKoreaOxidants, PhotochemicalOxidation-ReductionOzoneUltraviolet RaysWater PollutionWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

14669807

Citation

Kim, Y J., et al. "Application of Advanced Oxidation Processes for the Treatment of Cyanide Containing Effluent." Environmental Technology, vol. 24, no. 10, 2003, pp. 1269-76.
Kim YJ, Qureshi TI, Min KS. Application of advanced oxidation processes for the treatment of cyanide containing effluent. Environ Technol. 2003;24(10):1269-76.
Kim, Y. J., Qureshi, T. I., & Min, K. S. (2003). Application of advanced oxidation processes for the treatment of cyanide containing effluent. Environmental Technology, 24(10), 1269-76.
Kim YJ, Qureshi TI, Min KS. Application of Advanced Oxidation Processes for the Treatment of Cyanide Containing Effluent. Environ Technol. 2003;24(10):1269-76. PubMed PMID: 14669807.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Application of advanced oxidation processes for the treatment of cyanide containing effluent. AU - Kim,Y J, AU - Qureshi,T I, AU - Min,K S, PY - 2003/12/13/pubmed PY - 2004/3/18/medline PY - 2003/12/13/entrez SP - 1269 EP - 76 JF - Environmental technology JO - Environ Technol VL - 24 IS - 10 N2 - Batch experiments were carried out for the removal of cyanide in the effluent of plating industry by the application of advanced oxidation processes. Four systems with different modes of oxidation in combination of ultra violet (UV) light with hydrogen peroxide and/or ozone were investigated. Of all the applied systems, UV-light with two oxidants, i.e. O3 (32 mg min(-1)), and H2O2 (1.36 g l(-1)) was found successful in bringing down the amount of cyanide from 157.32 mg l(-1) to 1.0 mg l(-1), which is the limit set by the Ministry of Environment of Korea for cyanide-containing discharges. Other systems, however, could not bring the cyanide abatement to the targeted value even with higher dosage of oxidants and an extended period of reaction time. Regardless of the oxidation modes applied, all the heavy metal ions in the treated effluent were reduced to 90%. Ultra violet light with the combination of two oxidants had the economic preference over the other systems since a relatively lower dosage of UV-light (2484 W-S cm(-2)) was found effective at achieving the targeted level of cyanide removal. SN - 0959-3330 UR - https://www.unboundmedicine.com/medline/citation/14669807/Application_of_advanced_oxidation_processes_for_the_treatment_of_cyanide_containing_effluent_ DB - PRIME DP - Unbound Medicine ER -