Bleacing of olive mill wastewater by clay in the presence of hydrogen peroxide |
| |
| Institution: | 1. Laboratorie de Chimie des Matériaux et de l''Environnement, Faculté des sciences, Dhar El Mehraz, Fès, Maroc Morocco;2. Laboratoire de Contrôle des Eaux, R.A.D.E.E.F, Fès, Maroc Morocco;3. Département Génie Chimique et Biochimique, INSAT, 1080, Tunis, Tunisie;4. Laboratoire de Microbiologie de l''Environnement, Faculté des sciences, Dhar El Mehraz, Fès, Maroc Morocco;1. Consiglio Nazionale delle Ricerche, Istituto per la Valorizzazione del Legno e delle Specie Arboree (IVALSA), Catania, Via P. Gaifami 18, 95126 Catania, Italy;2. Consiglio Nazionale delle Ricerche, Istituto di Chimica Biomolecolare (ICB), Catania, Via P. Gaifami 18, 95126 Catania, Italy;3. Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), Università degli Studi di Catania, Via Valdisavoia 5, 95123 Catania, Italy;1. College of Physics Science and Technology, Hebei University, Baoding 071002, China;2. Yingli Green Energy Holding Co., Ltd., 3399 North Chaoyang Avenue, Baoding 071051, China;3. State Key Laboratory of Photovoltaic Materials and Technology, Yingli Solar, 071051, China;1. College of Engineering, China Agricultural University, 100083 Beijing, PR China;2. Naturally Wallace Consulting, 7801 Vauxhill Drive, PO Box 99587, Raleigh, NC 27624, United States;3. Department of Bioscience, Aarhus University, Ole Worms Allé 1, 8000 Aarhus C., Denmark;4. Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research – UFZ, Permoserstrasse 15, Leipzig D-04318, Germany;5. Iridra, Via La Marmora 51, 50121 Florence, Italy;1. Al-Balqa Applied University, Al-Huson University College, Department of Chemical Engineering, Jordan;2. The University of Jordan, Faculty of Engineering and Technology, Chemical Engineering Department, 11942 Amman, Jordan;3. Sustainable and Renewable Energy Engineering Department, University of Sharjah, Sharjah, United Arab Emirates;4. Department of Life and Environmental Sciences, College of Natural & Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates;5. Department of Earth and Environmental Sciences, Yarmouk University, Jordan;6. Department of Chemical Engineering, Faculty of Engineering Technology, Al-Balqa Applied University, Marka, Amman, Jordan;7. Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, United Arab Emirates;8. Department of Chemical Engineering, Qatar University, Qatar;9. Planning and Statistics Authority, Doha, Qatar;1. Nireas-International Water Research Center, University of Cyprus, P.O. Box 20537, CY-1678, Nicosia, Cyprus;2. Bioenergy Unit, National Laboratory of Energy and Geology, Estrada do Paço do Lumiar, 22, 1649-038, Lisboa, Portugal;3. Department of Natural Resources and Environment, Faculty of Agriculture, Jordan University of Science and Technology, Irbid, Jordan;4. Ben-Gurion University of the Negev, Departments of Biotechnology, Energy and Environmental Engineering, P.O. Box 653, Beer-Sheva, 84105, Israel;5. Department of Civil and Environmental Engineering, University of Cyprus, P.O. Box 20537, CY-1678, Nicosia, Cyprus |
| |
| Abstract: | Treatment of olive mill wastewater (OMW) with clayey soils in the presence of hydrogen peroxide (H2O2) allows the elimination of phenolic compounds responsible for the black-brownish color of this industrial effluent. The aim of this research was to define optimal physicochemical parameters for the bleaching of OMW with clay in the presence of hydrogen peroxide. Two clayey soil powders were tested (A and B) and the results obtained indicate that high bleaching could be reached after 24 hours exposure of OMW to 7 % (W/V) clay material A in the presence of 0.5 % (V/V) hydrogen peroxide. Under these conditions, the bleaching led to about 87 % decrease of polyphenols (PF) and a 66 % decrease of the Chemical Oxygen Demand (COD). The structure of clay and its concentration in iron salts have an effective adsorbent and catalytic effect on the removal of the majority of polyphenols. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
