A Pretreatment Method for Detection of Cyanide Ion Concentration in Decontamination Wastewater

Ya Wei Cai; Lian Yuan Wang; Hai Yan Zhu; Meng Meng Ma; Hong Peng Zhang; Guo Hua Ma; Zhen Xing Cheng

doi:10.4028/www.scientific.net/AMR.864-867.101

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867A Pretreatment Method for Detection of Cyanide Ion...

A Pretreatment Method for Detection of Cyanide Ion Concentration in Decontamination Wastewater

Abstract:

Three oxidant decontaminants, including NaClO, H₂O₂ and an organic peroxyl acid, were introduced to destroy the cyanide ion. The residual cyanide ion concentrations in different decontamination water were detected by a cyanide ion selective meter. Before the detection process, the oxidants left in the cyanide decontamination water were pretreated by adding a certain amount of Na₂SO₃. Results showed that starch-iodide solution indicator method presented a perfect function on determining the dosage of Na₂SO₃. Values of the relative mean deviations on residual cyanide detection were below 5%. After the decontamination water was deoxidized by Na₂SO₃, whether the sample distillated or not could not affect the value of CN^- quite much. Non-distillation was confirmed alternative in the detection of cyanide ion decontamination water. Too much standing time would lead to a relatively lower CN^- concentration, especially in that of non-distillation.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

101-105

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.101

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Online since:

December 2013

Authors:

Ya Wei Cai, Lian Yuan Wang*, Hai Yan Zhu, Meng Meng Ma, Hong Peng Zhang, Guo Hua Ma, Zhen Xing Cheng

Keywords:

Cyanide Ion, Decontamination Water, Deoxidization, Detection, Pretreatment

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* - Corresponding Author

References

[1] U.S. Department of health and human services. PB2007-100674: Toxicological profile for cyanide, July 2006, p.42.

Google Scholar

[2] Department of envionmental protection of China. GB 8978-1996: National integrated wastwater discharge standard, (1996).

Google Scholar

[3] United States Environmental Protection Agency (EPA). Methods for chemical analysis of water and wastes. Environmental Monitoring and Support Laboratory, Cincinnati, OH, (1983).

Google Scholar

[4] Official Journal of the European Union, Commission Directive 1998/83/EC, 1998, p.30–42.

Google Scholar

[5] Saad S.M. Hassan, Mohamed S.A. Hamza and Ali E. Kelany. A novel spectrophotometric method for batch and flow injection determination of cyanide in electroplating wastewater [J], Talanta, 2007 (71), pp.1088-1095.

DOI: 10.1016/j.talanta.2006.06.010

Google Scholar

[6] Jian Ma and Purnendu K. Dasgupta. Recent developments in cyanide detection: A review [J]. Analytica Chimica Acta, 2010 (673), pp.117-125.

DOI: 10.1016/j.aca.2010.05.042

Google Scholar

[7] M.M. Botz. Overview of Cyanide Treatment Methods [J]. Mining Environmental Management, Mining Journal Ltd. May 2001, pp.28-30.

Google Scholar