Treatment of Polymerization Effluents from Acrylic Fiber Manufacturing Using a Combination Process of Flocculation and Fenton Oxidation

Abstract:

A combined process of flocculation and Fenton oxidation was studied for the treatment of polymerization effluents (PME) from the manufacture of dry-spun acrylic fibers. 5 inorganic and 3 organic flocculants were investigated and the optimal regents and conditons were PAC (at 25°C, pH=8 and a dosage of 150 mg/L), and Z7650 (at 25°C, pH=6 and a dosage of 10 mg/L). Under this condition, the COD was removed by 23.1% of the initial 1824 mg/L. The optimum efficiency of Fenton process was determined at 25°C and pH=4 with a reaction time of 90 min. The dosage of H₂O₂ and the rate of c(H₂O₂)/c(FeSO₄) were respectively 0.53 mol/L and 20:1. Finally, the removal of COD, total nitrogen, ammonia, SO₃^2- and turbidity by the combined process were 64.0%, 99.3%, 99.6%, 99.7% and 89.4% respectively. BOD/COD was also improved from 0.09 to 0.25.

• Periodical: Advanced Materials Research (Volumes 332-334)
• Pages: 1582-1585
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.332-334.1582
• Online since: September 2011
• Authors: Bin Cai, Xin Wang, Xiao Li Dai, Guang Xu Yan, Shao Hui Guo
• Keywords: Dry-Spun Acrylic Fiber, Fenton Oxidation, Flocculation, Polymerization Effluent

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