Treatment of Silicon Steel Wastewater with Fenton Reagent

Abstract:

The paper aims to find out an economic and effective treatment for the silicon steel wastewater. According to the Fenton reaction principle, chemical adsorption and chemical flocculation, chemical oxygen demand (COD) and Cr⁶⁺ in the wastewater were reduced. The appropriate parameters were as follows: the mol ratio of Fe²⁺ to H₂O₂ was 1:2, the mol ratio of Fe²⁺ (dosage into the wastewater) to Cr⁶⁺ (content of the wastewater) was 5.2:1, pH 3-4, temperature 15-35°C. Under these conditions, the removal rate of Cr⁶⁺ and COD_Cr was 99.99% and 98.11% respectively, the Cr⁶⁺ and CODCr of the influent reduced from 2959mg/L and 1351mg/L to 0.421mg/L and 25.6mg/L respectively, and the effluent concentration achieved 1-class in "Steel Industrial Water Pollutant Discharge Standard(GB 13456-92)".

• Periodical: Advanced Materials Research (Volume 340)
• Pages: 287-292
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.340.287
• Online since: September 2011
• Authors: Wen Yi Zhang, Rong Chen, Xin Luo, Qiu Yan Li, Ning Han
• Keywords: Chromium-Containing Wastewater, Fenton Reagent, Passivation Wastewater, Silicon Steel Wastewater

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