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2013•Unpublished venueRequires access

Advanced Treatment of Heavy Oil Wastewater by Fenton Oxidation

Xun Guo

Open publisher page 1 citations

Abstract

Advanced treatment of Fenton oxidation was used to treat heavy oil wastewater which was hard to make effluent COD meet the discharge standard by conventional treatments due to its complexity,poor biodegradability and great toxicity.The effects on COD removal by dosages of H_2O_2 and Fe~(2+),oxidation time,pH value and dosing mode were studied.Experiment results showed that under the operating conditions with 1:1 mole ratio of H_2O_2:Fe~(2+),1:1 mass ratio of H_2O_2:COD,2 h oxidation time,3 initial pH value,18—20℃reaction temperature and adding chemicals once for all,the removal efficiency of COD was higher than 74%and effluent COD was of 58.9 mg/L,which could meet the discharge standard completely.In addition,increasing of addition times of reagents could improve the removal of COD in wastewater.

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What this paper is about

Advanced treatment of Fenton oxidation was used to treat heavy oil wastewater which was hard to make effluent COD meet the discharge standard by conventional treatments due to its complexity,poor biodegradability and great toxicity.The effects on COD removal by dosages of H_2O_2 and Fe~(2+),oxidation time,pH value and dosing mode were studied.Experiment results showed that under the operating conditions with 1:1 mole ratio of H_2O_2:Fe~(2+),1:1 mass ratio of H_2O_2:COD,2 h oxidation time,3 initial pH value,18—20℃reaction temperature and adding chemicals once for all,the removal efficiency of COD was higher than 74%and effluent COD was of 58.9 mg/L,which could meet the discharge standard completely.In addition,increasing of addition times of reagents could improve the removal of COD in wastewater.

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Available abstract

Advanced treatment of Fenton oxidation was used to treat heavy oil wastewater which was hard to make effluent COD meet the discharge standard by conventional treatments due to its complexity,poor biodegradability and great toxicity.The effects on COD removal by dosages of H_2O_2 and Fe~(2+),oxidation time,pH value and dosing mode were studied.Experiment results showed that under the operating conditions with 1:1 mole ratio of H_2O_2:Fe~(2+),1:1 mass ratio of H_2O_2:COD,2 h oxidation time,3 initial pH value,18—20℃reaction temperature and adding chemicals once for all,the removal efficiency of COD was higher than 74%and effluent COD was of 58.9 mg/L,which could meet the discharge standard completely.In addition,increasing of addition times of reagents could improve the removal of COD in wastewater.

Key concepts: Chemistry, Effluent, Wastewater, Biodegradation, Sewage treatment, Reagent, Nuclear chemistry, Pulp and paper industry

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