화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.30, No.3, 634-641, March, 2013
DOI10.1007/s11814-012-0162-5  Export Citation
Removal of oil from biodiesel wastewater by electrocoagulation method
Saeb Ahmadi, Ebrahim Sardari1, Hamed Reza Javadian1, Reza Katal, and Mohsen Vafaie Sefti†
  • Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
  • 1Department of Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
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An attempt has been made to remove oil and grease (O&G) from biodiesel wastewater as well as O&G and turbidity in the presence of H2O2 and polyaluminum chloride (PAC), as a coagulant-aid by an electrochemical method using iron as sacrificial electrodes. The effects of current density, amount of hydrogen peroxide using as an oxidizing agent and addition of coagulant-aid, on percent removal and energy consumption have been investigated. The removal efficiency of O&G was in the range of 62-86%, whereas O&G removal was 100% in the current density range of 10- 12.5 mAcm^(-2) depending on the concentrations of H2O2 and coagulant aid. It is obtained that electrocoagulation in the absence of coagulant aid and oxidant is not too efficient for the treatment of this type of wastewater.
Keywords:Electrocoagulation;Biodiesel Wastewater;Polyaluminum Chloride;Oxidant
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