Treatment of Cr(III) - Containing Wastewater by Continuous Foam Separation

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Abstract:

Cr(III)-containing wastewater was treated by continuous foam separation process. The factors affecting the Cr(III) removal efficiency were researched. The optimal operating conditions determined by orthogonal experiments are as follows:wastewater pH 6.50,gas flow 400ml/min,cationic surfactant dosage 50mg/L.When the mass concentration of Cr(III) in the influent is 7.5mg/L,the effluent can meet the national discharge standard with 98% of Cr(III) removal rate for continuous running. The kinetic experimental results show that the foam separation of Cr(III) accords with the first order kinetic equation. The results of continuous experiments in a scale-up foam separation column indicate which reach the Second Wastewater Discharge Standard of Country.

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Periodical:

Advanced Materials Research (Volumes 356-360)

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1535-1538

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Online since:

October 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Niu Xiaoxia:Journal of Luoyang University,Vol. 4(1999), p.39(In Chinese)

Google Scholar

[2] Hu Shan,ZhangYanyan: Chinese Traditional and Herbal Drugs,Vol. 5(2008), p.682(In Chinese)

Google Scholar

[3] A.A. Klmiyatfu: Metallic Ore Dressing S,Vol. 7(2007), p.28

Google Scholar

[4] Zhi Zhou: Removal of chromium from water by batch-type foam separation,Vol. 31(2011), p.38(In Chinese)

Google Scholar

[5] LIU Gui-min,DING Hong-mei,WU Zhao-Liana:The Impact of the Interaction between Reactive Blue 69 and CTAB on the Foamability of the Aqueous Solution,Vol.24(2010), p.585(In Chinese)

Google Scholar