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Enhancement of olive mill wastewater biodegradation by homogeneous and heterogeneous photocatalytic oxidation.
J Hazard Mater. 2009 Sep 30; 169(1-3):673-9.JH

Abstract

Olive mills wastewater (OMW) is characterized by its high organic content and refractory compounds. In this study, an advanced technology for the treatment of the recalcitrant contaminants of OMW has been investigated. The technique used was either photo-Fenton as homogeneous photocatalytic oxidation or UV/semi-conductor catalyst (such as TiO(2), ZrO(2) and FAZA) as heterogeneous photocatalytic oxidation for treatment of OMW. For both the processes, the effect of irradiation time, amounts of photocatalysts and semi-conductors, and initial concentration of hydrogen peroxide has been studied. At the optimum conditions, photo-Fenton process achieved COD, TOC, lignin (total phenolic compounds) and total suspended solids (TSSs) removal values of 87%, 84%, 97.44% and 98.31%, respectively. The corresponding values for UV/TiO(2) were 68.8%, 67.3%, 40.19% and 48.9%, respectively, after 80 min irradiation time. The biodegradability expressed by BOD(5)/COD ratio for treated wastewater was ranged from 0.66 to 0.8 compared to 0.19 for raw wastewater indicating enhancement of biodegradation.

Authors+Show Affiliations

Water Pollution Research Department, National Research Centre, Dokki, Cairo 11312, Egypt.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19457611

Citation

Badawy, M I., et al. "Enhancement of Olive Mill Wastewater Biodegradation By Homogeneous and Heterogeneous Photocatalytic Oxidation." Journal of Hazardous Materials, vol. 169, no. 1-3, 2009, pp. 673-9.
Badawy MI, El Gohary F, Ghaly MY, et al. Enhancement of olive mill wastewater biodegradation by homogeneous and heterogeneous photocatalytic oxidation. J Hazard Mater. 2009;169(1-3):673-9.
Badawy, M. I., El Gohary, F., Ghaly, M. Y., & Ali, M. E. (2009). Enhancement of olive mill wastewater biodegradation by homogeneous and heterogeneous photocatalytic oxidation. Journal of Hazardous Materials, 169(1-3), 673-9. https://doi.org/10.1016/j.jhazmat.2009.04.038
Badawy MI, et al. Enhancement of Olive Mill Wastewater Biodegradation By Homogeneous and Heterogeneous Photocatalytic Oxidation. J Hazard Mater. 2009 Sep 30;169(1-3):673-9. PubMed PMID: 19457611.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhancement of olive mill wastewater biodegradation by homogeneous and heterogeneous photocatalytic oxidation. AU - Badawy,M I, AU - El Gohary,F, AU - Ghaly,M Y, AU - Ali,M E M, Y1 - 2009/04/19/ PY - 2008/09/07/received PY - 2009/03/30/revised PY - 2009/04/01/accepted PY - 2009/5/22/entrez PY - 2009/5/22/pubmed PY - 2009/9/29/medline SP - 673 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 169 IS - 1-3 N2 - Olive mills wastewater (OMW) is characterized by its high organic content and refractory compounds. In this study, an advanced technology for the treatment of the recalcitrant contaminants of OMW has been investigated. The technique used was either photo-Fenton as homogeneous photocatalytic oxidation or UV/semi-conductor catalyst (such as TiO(2), ZrO(2) and FAZA) as heterogeneous photocatalytic oxidation for treatment of OMW. For both the processes, the effect of irradiation time, amounts of photocatalysts and semi-conductors, and initial concentration of hydrogen peroxide has been studied. At the optimum conditions, photo-Fenton process achieved COD, TOC, lignin (total phenolic compounds) and total suspended solids (TSSs) removal values of 87%, 84%, 97.44% and 98.31%, respectively. The corresponding values for UV/TiO(2) were 68.8%, 67.3%, 40.19% and 48.9%, respectively, after 80 min irradiation time. The biodegradability expressed by BOD(5)/COD ratio for treated wastewater was ranged from 0.66 to 0.8 compared to 0.19 for raw wastewater indicating enhancement of biodegradation. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19457611/Enhancement_of_olive_mill_wastewater_biodegradation_by_homogeneous_and_heterogeneous_photocatalytic_oxidation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)00550-0 DB - PRIME DP - Unbound Medicine ER -