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2009•Journal of Taiyuan University of TechnologyRequires access

Study on Pretreatment of Waste Water from Fischer-Tropsch Synthesis by Microelectrolysis-Fenton Method

Yongwang Li

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Abstract

The waste water from Fischer-Tropsch synthesis was pretreated through the combined method of Microelectrolysis-Fenton reagent catalytic oxidation.Then the effects of various reaction conditions and process parameters on treatment efficiency were investigated.The results suggest that: the CODCr removal rate reached 39.2% when iron and charcoal volume ratio in microelectrolysis was 1∶1,pH of influent was 3.0 and reaction time was 120min;the effluent after micoelectrolysis was further oxidized by Fenton,the removal rate of CODCr could reach approximately 69.4% when pH,dosing quantity of H2O2 and reaction time was 3.0,30 mL/L and 90 min,respectively.The BOD5/CODCr value was improved from 0.06 to 0.32,and the biodegradability also got improved effectively.

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What this paper is about

The waste water from Fischer-Tropsch synthesis was pretreated through the combined method of Microelectrolysis-Fenton reagent catalytic oxidation.Then the effects of various reaction conditions and process parameters on treatment efficiency were investigated.The results suggest that: the CODCr removal rate reached 39.2% when iron and charcoal volume ratio in microelectrolysis was 1∶1,pH of influent was 3.0 and reaction time was 120min;the effluent after micoelectrolysis was further oxidized by Fenton,the removal rate of CODCr could reach approximately 69.4% when pH,dosing quantity of H2O2 and reaction time was 3.0,30 mL/L and 90 min,respectively.The BOD5/CODCr value was improved from 0.06 to 0.32,and the biodegradability also got improved effectively.

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Available abstract

The waste water from Fischer-Tropsch synthesis was pretreated through the combined method of Microelectrolysis-Fenton reagent catalytic oxidation.Then the effects of various reaction conditions and process parameters on treatment efficiency were investigated.The results suggest that: the CODCr removal rate reached 39.2% when iron and charcoal volume ratio in microelectrolysis was 1∶1,pH of influent was 3.0 and reaction time was 120min;the effluent after micoelectrolysis was further oxidized by Fenton,the removal rate of CODCr could reach approximately 69.4% when pH,dosing quantity of H2O2 and reaction time was 3.0,30 mL/L and 90 min,respectively.The BOD5/CODCr value was improved from 0.06 to 0.32,and the biodegradability also got improved effectively.

Key concepts: Effluent, Biodegradation, Chemistry, Catalysis, Pulp and paper industry, Fischer–Tropsch process, Volume (thermodynamics), Wastewater

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