Removal of Heavy Metals from Aqueous Solution Using Biochar Derived from Biomass and Sewage Sludge

Abstract:

Biochar, a production of cotton/sludge pyrolysis, was used as an adsorbent for the removal of heavy metals from aqueous solutions. In this paper, it was assessed that the effect of biochar produced parameters including pyrolysis temperature and heating rate, adsorption time, solution pH and biochar modification on removal of Cd from aqueous solution, and the removal effect of heavy metals from mixed aqueous solution was also studied. The results showed that the optimum conditions were pyrolysis temperature of 550°C, heating rate of 5°C/min, adsorption time of 90min, biochar dosage of 10g/L and solution pH=6, respectively. And the effect was a little increased when the biochar were impregnated with chemicals. About 99% Cd, Pb and Zn were removed from aqueous solution using biochar under the optimum conditions.

• Periodical: Applied Mechanics and Materials (Volume 768)
• Pages: 89-95
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.768.89
• Online since: June 2015
• Authors: Han Qiao Liu*, Xian Xu, Zhen Hua Wu, Guo Xia Wei, Lei Sun
• Keywords: Adsorption, Bbiochar, Heavy Metal, Sludge

References

[1] F. Akbal, S. Camci, Copper chromium and nickel removal from metal plating wastewater by electrocoagulation. Desalination, 269 (2011), 214-222.

DOI: 10.1016/j.desal.2010.11.001

[2] L. Beesley, M. Marmiroli, The immobilisation and retention of soluble arsenic, cadmium and zinc by biochar. Environ. Pollut, 159(2011): 474-480.

DOI: 10.1016/j.envpol.2010.10.016

[3] R. Pusker, L. G. M. Jose and K. Sandeep, Removal of copper and cadmium from aqueous solution using switchgrass biochar produced via hydrothermal carbonization process. Journal of Environmental Management, 109(2012), 61-69.

DOI: 10.1016/j.jenvman.2012.04.047

[4] X. Y. Xu, X. D. Cao, Z. Ling, H. L. Wang, H. R. Yu and B. Gao, Removal of Cu, Zn, and Cd from aqueous solutions by the dairy manure-derived biochar. Environ Sci Pollut Res, 20(2013), 358-368.

DOI: 10.1007/s11356-012-0873-5

[5] Z. Liu and F. S. Zhang, Removal of lead from water using biochars prepared from hydrothermal liquefaction of biomass. Hazard. Mater, 167 (2009), 933-939.

DOI: 10.1016/j.jhazmat.2009.01.085

[6] F. Boudrahem, A. Soualah and B. F. Aissani, Pb(II) and Cd(II) removal from aqueous solutions using activated carbon developed from coffee residue activated with phosphoric acid and zinc chloride. Chem. Eng. Data, 56 (2011), 1946-(1955).

DOI: 10.1021/je1009569

[7] A. Mahtab, S. L. Sang, X. M. Dou, M. Dinesh, S. Jwa-Kyung, E. Y. Jae and S. Yong, Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water. Bioresource Technology, 118(2012).

DOI: 10.1016/j.biortech.2012.05.042

[8] K. C. Murat, K. Cisem, C. Özge and E. P. Ayse, Adsorption of heavy metal ions from aqueous solutions by bio-char, a by-product of pyrolysis. Applied Surface Science, 283(2013), 856- 862.

DOI: 10.1016/j.apsusc.2013.07.033

[9] U. Minori, H. Lynda, K. Wartelle, K. Thomas, A. F. Chanel and M. L. Isabel, Influence of Pyrolysis Temperature on Biochar Property and Function as a Heavy Metal Sorbent in Soil. Agricultural and Food Chemistry, 59(2011), 2501-2510.

DOI: 10.1021/jf104206c

[10] A. Evita, B. George, K. Dimitrios and D. Evan, Biochar production by sewage sludge pyrolysis. Journal of Analytical and Applied Pyrolysis, 101(2013), 72-78.

DOI: 10.1016/j.jaap.2013.02.010