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2013•Environmental ChemistryRequires access

Pretreatment of C_9 resin wastewater by Fenton oxidation process

Wang Ruzhe

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Abstract

Fenton oxidation as a pretreatment method was used to treat C9resin wastewater. The influence factors associated with the treatment efficiency were examined by the single-factor and orthogonal test. The optimal parameters were obtained as follow: Fe2 +0. 5 g·L- 1,H2O210 mL·L- 1,pH 4 and reaction time 1. 0 h. The removal efficiency of COD and TOC were 60. 6% —62. 7% and 54. 3% —58. 4%,respectively,and the ratio of B / C( BOD5to COD) was increased from 0. 21 to 0. 51 under the optimal conditions. The experimental results show that the biodegradability of C9resin wastewater was significantly improved by Fenton oxidation treatment.

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What this paper is about

Fenton oxidation as a pretreatment method was used to treat C9resin wastewater. The influence factors associated with the treatment efficiency were examined by the single-factor and orthogonal test. The optimal parameters were obtained as follow: Fe2 +0. 5 g·L- 1,H2O210 mL·L- 1,pH 4 and reaction time 1. 0 h. The removal efficiency of COD and TOC were 60. 6% —62. 7% and 54. 3% —58. 4%,respectively,and the ratio of B / C( BOD5to COD) was increased from 0. 21 to 0. 51 under the optimal conditions. The experimental results show that the biodegradability of C9resin wastewater was significantly improved by Fenton oxidation treatment.

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Available abstract

Fenton oxidation as a pretreatment method was used to treat C9resin wastewater. The influence factors associated with the treatment efficiency were examined by the single-factor and orthogonal test. The optimal parameters were obtained as follow: Fe2 +0. 5 g·L- 1,H2O210 mL·L- 1,pH 4 and reaction time 1. 0 h. The removal efficiency of COD and TOC were 60. 6% —62. 7% and 54. 3% —58. 4%,respectively,and the ratio of B / C( BOD5to COD) was increased from 0. 21 to 0. 51 under the optimal conditions. The experimental results show that the biodegradability of C9resin wastewater was significantly improved by Fenton oxidation treatment.

Key concepts: Wastewater, Biodegradation, Chemistry, Nuclear chemistry, Degradation (telecommunications), Oxidation process, Sewage treatment, Environmental chemistry

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