title: The potential of autochthonous microbial culture encapsulation in a confined environment for phenol biodegradation.
abstract: Olive mill wastewater (OMWW) is claimed to be one of the most polluting effluents produced by agro-food industries, providing high contaminants load that encase cytotoxic agents such as phenolic and polyphenolic compounds. Therefore, a significant and continuous stress episode is induced once the mixed liquor of the wastewater treatment plants (WWTP's) is being exposed to OMWW. The use of bio-augmentation treatment procedures can be useful to eliminate or reduce such stress episodes. In this study, we have estimated the use of autochthonous biomass implementation within small bioreactor platform (SBP) particles as a bio-augmentation method to challenge against WWTPs stress episodes. Our results showed that SBP particles significantly reduced the presence of various phenolics: tannic, gallic and caffeic acid in a synthetic medium and in crude OMWW matrix. Moreover, the SBP particles succeeded to biodegrade a very high concentration of phenol blend (3000 mg L(-1)). Our findings indicated that the presence of the SBP microfiltration membrane has reduced the phenol biodegradation rate by 50 % compared to the same suspended culture. Despite the observed reduction in biodegradation rate, encapsulation in a confined environment can offer significant values such as overcoming the grazing forcers and dilution, thus achieving a long-term sufficient biomass. The potential for reducing stress episodes caused by cytotoxic agents through bio-augmentation treatment procedure using the SBP technology is discussed.
authors.affiliation: The Galilee Society, Institute of Applied Research (Affiliated with University of Haifa), P.O. Box 437, Shefa Amr, 20200, Israel.|Tel Hai College, Tel Hai, Upper Galilee, 12208, Israel.
authors.forename: Hassan
authors.initials: H
authors.lastname: Azaizeh
authors.affiliation: Golan Research Institute, University of Haifa, P.O.B 97, Qatzrin, Israel.
authors.forename: Eyal
authors.initials: E
authors.lastname: Kurzbaum
authors.affiliation: The Galilee Society, Institute of Applied Research (Affiliated with University of Haifa), P.O. Box 437, Shefa Amr, 20200, Israel.
authors.forename: Ons
authors.initials: O
authors.lastname: Said
authors.affiliation: The Galilee Society, Institute of Applied Research (Affiliated with University of Haifa), P.O. Box 437, Shefa Amr, 20200, Israel.
authors.forename: Husain
authors.initials: H
authors.lastname: Jaradat
authors.affiliation: Water Industries Engineering Department, Achi Racov Engineering School, Kinneret College on the Sea of Galilee, D.N. Emek Ha'Yarden, 15132, Israel. ofirmn@kinneret.ac.il.
authors.forename: Ofir
authors.initials: O
authors.lastname: Menashe
mesh_terms: D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D005525:Food-Processing Industry; D007220:Industrial Waste / Q000032:analysis*; D000069463:Olive Oil; D010636:Phenols / Q000032:analysis*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
chemical_list: D007220:Industrial Waste; D000069463:Olive Oil; D010636:Phenols; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Confined environment bio-augmentation; Encapsulation; Olive mill wastewater; Phenol biodegradation; Small bioreactor platform (SBP); Wastewater treatment