Reduction of Hexavalent Chromium from Chrome Shavings

Authors

  • Salma A.A. Sharaf Department of Leather Engineering, Faculty of Engineering, University of Sudan for Sciences and Technology, Sudan Author
  • Gurashi A. Gasmeleed Department of Leather Technology, College of Applied and Industrial Sciences, University of Bahri, Khartoum, Sudan Author
  • A.E. Musa Department of Leather Technology, College of Applied and Industrial Sciences, University of Bahri, Khartoum, Sudan Author

Keywords:

Chrome shavings, Hexavalent chrome, Reduction, Solid waste, Leather

Abstract

The chrome tanned leather shavings which are produced by chrome tanning process and disposed as a waste, has to be treated and recycled. In this study the chrome shavings were incinerated at 1000°C to transform chromium III to chromium VI. The hexavalent chromium was reduced to basic chromium sulphate using 250% water, 92% Sulphuric acid and 25% sugar based on the dichromate weight. The basic chromium sulphate obtained was of 33% basicity and 21% chromic oxide with conversion of 96.80%. Complete reduction was achieved in three hours with pH of 2.5. Chrome tanning trials were performed using pickled sheep skin.

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Published

01-03-2013

Issue

Vol.1, No.1 (Mar 2013)

Section

Articles

How to Cite

Reduction of Hexavalent Chromium from Chrome Shavings. (2013). International Journal of Advance Industrial Engineering, 24-27. https://ijaie.evegenis.org/index.php/ijaie/article/view/1089