DocumentCode :
2481516
Title :
The removal of COD from refinery wastewater by Fenton reagent
Author :
Zhang, Qingxuan ; Yang, Guohua
Author_Institution :
State key Lab. of Heavy Oil Process., China Univ. of Pet. East China, Qingdao, China
fYear :
2011
fDate :
24-26 June 2011
Firstpage :
7974
Lastpage :
7977
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 Fe2+ 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-L1 to 60 mmol-L"1. The COD removal first increased then decreased with the mole ratio of Fe2+ to H2O2. The maximum COD removal appeared as the mole ratio of Fe 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%.
Keywords :
oil refining; oxidation; pH; wastewater treatment; COD removal; Fenton reagent; chemical oxygen demand; oxidation temperature; oxidation time; pH value; refinery wastewater; Chemicals; Degradation; Iron; Oxidation; Petroleum; Wastewater; Wastewater treatment; COD removal; Fenton reagent; refinery wastewater;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
Type :
conf
DOI :
10.1109/RSETE.2011.5966300
Filename :
5966300
Link To Document :
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