Studies Of Chemical Precipitating Agents Magnesium, Sodium And Calcium Oxide In Removal Of Chromium From Chrome Tan Liquor

Authors

  • Sathish Thangamuthu
  • Shanmugam Palanisamy
  • Subramanian Nallasamy
  • Gowri Shankar Velusamy

Abstract

In this present study, chromium removed from chrome tan liquor using chemical precipitating agents such as MgO, CaO and Na2O. The potential evaluation of sludge from precipitation was investiged by varying temperature, pH, stirring speed and ratio of liqour to agents on synthetic and industrial effluents. The result shows that MgO and CaO have faster rate in precipitation and sludge formation, and higher dosage of CaO enabled in higher Cr removal efficiency. Higher in temperature and acidic pH have major impact in dissociation of precipitate from Cr removal, which reduce the eficiency below 75% when pH<6 and temperature >50oC.

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Published

2020-02-04

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Section

Articles