Preliminary Study on the Removal of Hexavalent Chromium in Wastewater with Reduction of Sulfur Dioxide

Abstract:

The paper focused on a self-developed methodology through using sulfur dioxide to deal with high concentration of chromium-containing wastewater. It studied the effects of different pH values, different reaction time, different temperatures and different amounts of sulfur with sulfur dioxide reduction reaction on the chromium-containing wastewater. The results showed that: when the reaction conditions were controlled as follows: the pH values ranged from 2 to 4, the reaction temperature was controlled 40~60°C, the amount of sulfur in theoretical was 1.2 times and the reaction time was 40 min, the hexavalent chromium in the high concentrations of chromium-containing wastewater could be effectively removed.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1699-1703
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1699
• Online since: December 2013
• Authors: Ji Ming Wu*, Sheng Gao Cheng
• Keywords: Chromium-Containing Wastewater, Hexavalent Chromium, Removal Efficiency, Sulfur Dioxide Reduction

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