Response Surface Optimization of Adsorption Conditions of Cr (VI) from Wastewater by Modified Brewer's Grains

Abstract:

Surface response optimization of Adsorption Conditions of Cr(VI) wastewater by modified brewer's grains with the factors of pH value, adsorption temperature, adsorption time, amount of adsorbent and the response of adsorption rate were studied. The optimal parameters for Adsorption Conditions were of adsorbent concentration of 60 mg·L-1, adsorbent particle size of 60~80 mesh, pH 2.23, adsorbent amount of 3.64 g·L-1, adsorption time and temperature of 1.13 h and 30 °C, respectively. The maximal absorption rate got 97.45%.The modified brewer's grains is a promising, cheap, efficient, new biological materials of adsorption for Cr (VI) in wastewater.

• Periodical: Advanced Materials Research (Volumes 781-784)
• Pages: 1931-1936
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.781-784.1931
• Online since: September 2013
• Authors: Xin Long Jiang, Yi Hua Jiang
• Keywords: Adsorption Conditions, Cr(VI), Modified Brewer's Grains, Response Surface Methodology (RSM)

References

[1] X.S. Wang Z.Z. Li,C. Sun. Removal of Cr(VI) from aqueous solutions by low-cost biosorbents: Marine macroalgae and agricultural by-products.J. Hazard. Mater., 2008, 153(3): 1176-1184.

DOI: 10.1016/j.jhazmat.2007.09.079

[2] G. Qin M.J. Mcguire N.K. Blute, et al. Hexavalent chromium removal by reduction with ferrous sulfate, coagulation, and filtration: A pilotscale study. Environ. Sci. Technol., 2005, 39(16): 6321-6327.

DOI: 10.1021/es050486p

[3] L.H. Wang Z.G. Liu . Study and application of Cr(VI ) -containing wastewater in alkaline solution by iron chips electrolysis process. Energy Environmental Protection. 2010, 24 (5): 27-31 (in Chinese).

[4] H.W. Liao,M. Zheng,L. Mu, et al. Separation and enrichment of micro chromium Cr(VI) in waste water by dialkenyl succinimide/ tributyl phosphate/ kerosene liquid membrane. Metallurgical Analysis., 2009, 29 (4) : 41-45 (in Chinese).

[5] L. Fan J.Q. Zhang,X. Cheng, et al. Progress of treatment of wastewater containing chromium by ion-exchange method and adsorption method. Technology of Water Treat ment, 2009, 35 (1): 30-33 ( in Chinese).

[6] S.D. Shen,J. Xu. Research on adsorption of hexavalent chromium in water onto grapefruit husk powder. Chinese Journal of Environmental Engineering, 2010, 4 ( 8): 1841-1845 ( in Chinese).

[7] D. Sud,G. Mahajan,M. Kaur. Agricultural waste material as potential adsorbent for sequestering heavy metal ions for aqueous solutions-A review. Bioresour. Technol., 2008 , 99(14): 6017-6027.

DOI: 10.1016/j.biortech.2007.11.064

[8] D. Park S.R. Lim Y.S. Yun, et al. Development of a new Cr(VI)-biosorbent from agricultural biowaste. Bioresour. Technol., 2008 , 99 (18): 8810-8818.

DOI: 10.1016/j.biortech.2008.04.042

[9] S. Chen,Q. Yue,B. Gao, et al. Equilibrium and kinetic adsorption study of the adsorptive removal of Cr(VI) using modified wheat residue.J. Colloid Interface Sci., 2010 , 349(1): 256-264.

DOI: 10.1016/j.jcis.2010.05.057

[10] K.K. Singh,R. Rastogi S.H. Hasan. Removal of Cr (VI) from wastewater using rice bran.J. Colloid Interface Sci., 2005 , 290 (1): 61-68.

DOI: 10.1016/j.jcis.2005.04.011

[11] Y.X. Guo, D.D. Pan, T. Masaru . Optimisation of hydrolysis conditions for the production of the angiotensin-I converting enzyme (ACE) inhibitory peptides from whey protein using response surface methodology. Food Chem, 2009, 114: 328-333.

DOI: 10.1016/j.foodchem.2008.09.041

[12] G.Y. Lv, P. Wang, J.Y. He, et al. Medium optimization for enzymatic production of L-cysteine by Psedomonas sp. Zjwp-14 using response surface methodology. Food Technol Biotech, 2008, 46 (4): 395-401.

[13] X.J. Yu, N. Guo, Z.M. Chi, et al. Inulinase overproduction by a mutant of the marine yeast Pichia guilliermondii using surface response methodology and inulin hydrolysis. Biochem Eng J, 2009, 43: 266-271.

DOI: 10.1016/j.bej.2008.10.018