NDLI: The removal of COD from refinery wastewater by Fenton reagent

Content Provider	IEEE Xplore Digital Library
Author	Qingxuan Zhang Guohua Yang
Copyright Year	2011
Description	Author affiliation: State key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266555, China (Qingxuan Zhang; Guohua Yang)
Abstract	Chemical oxygen demand (COD) has been the crucially problematic parameters in refinery wastewater treatment. This study was conducted to investigate COD removal in refinery wastewater with Fenton process. The effects of pH value, H2O2 dosage, the mole ratio of $Fe^{2+}$ to H2O2, oxidation time and oxidation temperature on COD removal were discussed. The results showed that COD removal efficiency first increased then decreased with the increase of solution pH, and the highest COD removal appeared as pH was about 2.5 to 3.0. The COD removal rose from 36.61 % to 43.44 % with H2O2 concentration from 25 $mmol·L^{−1}$ to 60 $mmol·L^{−1}.$ The COD removal first increased then decreased with the mole ratio of $Fe^{2+}$ to H2O2. The maximum COD removal appeared as the mole ratio of $Fe^{2+}$ to H2O2 is 1∶5. The COD removal increased with time and leveled off after 120 minutes. When the oxidation temperature increased from 30°C to 50°C, the COD removal increased slightly from 40.98% to 44.81%.
Starting Page	7974
Ending Page	7977
File Size	223473
Page Count	4
File Format	PDF
ISBN	9781424491728
e-ISBN	9781424491711
DOI	10.1109/RSETE.2011.5966300
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-24
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Oxidation Iron Refinery wastewater Wastewater Wastewater treatment Petroleum Chemicals COD removal Fenton reagent
Content Type	Text
Resource Type	Article

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