Research of 6-Nitry Industrial Wastewater Treatment by Coagulation-Fenton Oxidation

Abstract:

The paper adopted Coagulation-Fenton Oxidation Method on treating the wastewater of 6-nitro-1,2 diazonium oxygroup naphthalene-4-sulfoacid production process (i.e. 6-nitry wastewater), introduced the treatment effect of the combined technology used on 6-nitry wastewater, and studied the factors influencing the treatment effect, to determine the reasonable parameters of the technology on treating 6-nitry wastewater. The results showed that Using polyaluminium chloride (mass fraction 2%) as flocculant for treating 6-nitry wastewater, the COD removal rate reached up to 48.7%; Making Fenton reagent oxidation treatment on coagulation yielding water, under the best conditions for solution acidity controlled at pH3 or so, in the 100 mL wastewater, 30% hydrogen peroxide was 5.0 mL, 0.5 mol/L ferrous sulfate solution was 4.0 mL, reaction time was 60 min, the COD removal rate could reach 98% or more.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 2745-2748
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.2745
• Online since: May 2012
• Authors: Ling Yan Ren, Gang Xu
• Keywords: 6-Nitry Industrial Wastewater, Coagulating Sedimentation, Fenton Oxidation, Wastewater Treatment

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