Research on the Cr (VI) Absorption by Activated Sludge

Qiang Li; Sheng Han; Da Ke Hao; Jia Jia Wang; Yan Luo; Yan Hong Qu; Dong Xue Song; Xue Ying Hu

doi:10.4028/www.scientific.net/AMM.229-231.138

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 229-231Research on the Cr (VI) Absorption by Activated...

Research on the Cr (VI) Absorption by Activated Sludge

Abstract:

The adsorption performance of Cr (VI) on activated sludge and the effect of adsorption time, pH, temperature on the adsorption and desorption were studied. The initial pH is important for biosorption, and the optimum effect on Cr (VI) biosorption is acquired within initial pH of 0.5-1.0. Activated sludge has high efficiency of treating low concentration Cr (VI) wastewater. The removal rate of Cr (VI) could reach 99% when the total concentrations of Cr (VI) were 10 mg/L. The results of static test showed that the adsorption equilibrium was reached within 60 min. The biosorption process was fitted into Langmuir and Freundlich isotherm adsorption equations. It is presumed that the progress of biosorption was reversible adsorption and irreversible adsorption simultaneously, however the reversible adsorption was more important in the biosorption and the adsorption belongs to physics adsorption.

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Applied Mechanics and Materials (Volumes 229-231)

Pages:

138-141

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.229-231.138

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Online since:

November 2012

Authors:

Qiang Li, Sheng Han, Da Ke Hao, Jia Jia Wang, Yan Luo, Yan Hong Qu, Dong Xue Song, Xue Ying Hu

Keywords:

Activated Sludge, Adsorption, Chromium-Containing Wastewater, Cr(VI)

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References

[1] C. Quintelas, E. Sousa and F. Silva: Process Biochem Vol. 41 (2006), p.2087-(2091).

Google Scholar

[2] M.N. Nourbakhsh, S. Kiliçarslan and S. Ilhan: Chem Eng J Vol. 85 (2002), pp.351-355.

Google Scholar

[3] Y. Liu, H. Xu, S.F. Yang and J.H. Tay: J Biotechnol Vol. 102 (2003), pp.233-239.

Google Scholar

[4] N.S. Maurya and A.K. Mittal: Water Sci Technol Vol. 59 (2009), p.2073-(2079).

Google Scholar

[5] K. Akhtar, A.M. Khalid, M.W. Akhtar and M.A. Ghauri: Bioresour Technol Vol. 100 (2009), pp.4551-4558.

Google Scholar

[6] T. Akar, Z. Kaynak, S. Ulusoy, D. Yuvaci, G. Ozsari and S.T. Akar: J Hazard Mater Vol. 163 (2009), pp.1134-1141.

DOI: 10.1016/j.jhazmat.2008.07.084

Google Scholar

[7] Q. Li, M. Chen, F.C. Cui, J.F. Cheng and Y.Z. Zhang: Environ Sci Vol. 27 (2006), pp.343-346.

Google Scholar

[8] T.A. Dvis, B. Volesky and A. Mucci: Water Res Vol. 37 (2003), pp.4311-4330.

Google Scholar

[9] H. Salehizadeh, M. Vossoughi and I. Alemzadeh: Biochem Eng J Vol. 5 (2000), pp.39-44.

Google Scholar