Fraction Distribution Changes of Heavy Metals in Co-Pyrolysis of Sewage Sludge and Corn Straw

Abstract:

Maiz’s short sequential extraction procedure was used to extract the heavy metals in the carbon residues made from sewage sludge by co-pyrolysis with corn straw. The content of heavy metals in the residues was determined by ICP-MS to study the fraction distribution changes of heavy metals. It is concluded that the content of mobile and mobilization heavy metals exsisted in the residue decrease and the content of residual heavy metals increase due to the co-pyrolysis. The co-pyrolysis temperature has great effect on the fraction distribution changes of heavy metals. The content of residual fraction for Cr, Ni, Pb is up to the top at 700°C and for Cd、Cu、Zn is at 500°C. The carbon residues are unhazardous and safe.

• Periodical: Advanced Materials Research (Volumes 236-238)
• Pages: 187-191
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.236-238.187
• Online since: May 2011
• Authors: Qiu Rong Zhang, Shuang Quan Zhang, Ting Ting Pan
• Keywords: Carbon Residue, Corn Straw, Fraction Distribution, Heavy Metal, Pyrolysis, Sewage Sludge

References

[1] Biarne.P, Kjell T.N.W, Science Technology, 36, 283-290. (1997)

[2] Bengtsson.M, Tillman.A, Resources, Conservation and Recycling, 42, 65-82. (2004)

[3] Fytili.D, Zabaniotou.A, Renewable and Sustainable Energy Reviews, 12, 116-140. (2008)

[4] Yu Lan-lan, Qin zhong, Environmental Chemistry, 24, 401-404. (2005)

[5] P.C. Chiang, J. H., Chem.En, 65, 922-927. (1987)

[6] Zhang shuang-quan, Dong ming-jian, Yin zhi-yuan, et al, Zhong Guo Ke Ji ChengGuo, 11, (2010)

[7] Lin yun-qin, Zhou shao-qi, Ecology and Environment, 17, 4. (2008)

[8] Ito. A, Umita.T, Aizawa.J, Takachi.T, Morinaga. K, Water Research, 34, 751-758. (2000)

[9] Samaras. P, Papadimitriou. C. A, Haritou.I, Zouboulis.A.I, Journal of Hazardous Materials, 154, 1052-1059. (2008)

DOI: 10.1016/j.jhazmat.2007.11.012

[10] Tessier A, C. Q. G, Bissson. M, Analytical Chemistry, 51, 844-851. (1979)

[11] A.M.URE, P.Q, H.MUNTAU, B.GRIEPINK, Intern.J.Environ.Anal.Chem, 51, 135-151. (1992)

[12] I. Maiz, M.V.E, E.Millán, The Science of The Total Environment, 206, 107-115. (1997)

[13] A, K.P, Applied Geochemistry, 2, 3-9. (1993)

[14] Kistler.R.C, Widmer.F, Brunner.P.H, Environmental Science and Technology, 21, 704-708. (1987)