The Generation and Analysis of Carbon Steel Pickling Sludge

Abstract:

The sludge generated from carbon steel pickling process, containing a large number of metal ions, particularly hexavalent chromium, mercury, lead and nickel ion, which is considered to be a kind of hazardous solid waste. The content of moisture in the sludge is 40.02% to 97.30% ,and pH value is about 7 to 11 ;The content of iron in the sludge is the highest, which is from 14.21% to 50.12% ; Other conventional metal elements like Ca , K, Na and Mg ,their content as follows: 5.93% to 29.93% , 0.011 % to 0.14% , 0 to 0.33% and 0.11% to 1.65 % . The heavy metal elements like Zn, Ni, Mn, Cr, Cu, Hg and Pb, their content as follows: 0.0094% to 4.83%, 0.0063% to 1.129% , 0.0226% to 0.106, 0.0103 % to 0.0647% , 0.0034% to 0.0657% , 0.0017% to 0.0135% and 0.0012% to 0.0038% . The anions like SO₄^2- , Cl^- and PO₄^3-, their contents are 0.18 % to 31.92%, 0.05 % to 4.27%, 16% to 11.61%, respectively. This paper has a certain reference value for the treatment and utilization of carbon steel pickling sludge. This paper has certain reference value when treating and utilizing the plain carbon steel pickling sludge.

• Periodical: Applied Mechanics and Materials (Volumes 368-370)
• Pages: 505-509
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.368-370.505
• Online since: August 2013
• Authors: Bin Bin Fang, Yang Yang, Zhen Chu, Xiu Yun Sun, Wen Ping Huang, Xing Wei Song, Lian Jun Wang
• Keywords: Analysis of Component, Carbon Steel, Pickling Sludge

References

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