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Document Type |
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Thesis |
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Document Title |
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Biodegradation of phenolic compounds and treatment of phenolic industrial wastewater using extremophilic consortium under saline condition التكسير الحيوي للمركبات الفينولية ومعالجة المخلفات الفينولية في مياه الصرف الصناعي باستخدام المجموعات البكتيرية المحبة للظروف القاسية تحت ظروف ملحية |
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Subject |
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Faculty of Science |
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Document Language |
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Arabic |
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Abstract |
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Saudi Arabia industrial sectors face significant challenges in treating industrial waste contaminated with micropollutants such as phenolic compounds. Phenolic compounds are a type of secondary plant metabolite that is commonly found in effluent from oil refineries and petroleum industries. They pose an environmental risk because they act as a single major pollutant. The compound dissolves readily in water and organic solvents. Numerous methods for phenol removal are used, including enzymatic degradation and polymerization of phenols, but biological treatment always has the major advantage of being environmentally friendly and cost-effective. Our study focuses on the biodegradation of phenolic compounds under extreme conditions such as salinity. The degradation of phenolic compounds (Phenol, 2-Chlorophenol, 4-Chlorophenol, 2-Nitrophenol) was studied at different concentrations from 50 to 1000 ppm. HPLC (High Performance Liquid Chromatography) was used to assess its efficiency, and bacterial growth was measured using a protein estimation kit.scale continuous stirred tank reactor (CSTR) was used to evaluate the treatment potential of the bacterial consortium. In addition, bacterial community analysis was carried out using the next-generation sequencing technique.Shown the ability to degrade phenolic compounds completely at different concentrations under extreme conditions. CSTR was used to treat phenol-contaminated industrial waste for 40 days, which recorded 96% COD removal.. Bacterial community analysis confirmed the presence of bacterial strains such as Ochrobactrum (54%), Rhodobacter (16%), Marinobacter (12%), Bacillus (9%), Stenotrophomonas (5%) and Pseuodomonas (4%). According to our findings, halophilic bacterial consortiums play an important role in phenolic compound degradation and the treatment of phenol-rich industrial wastewater under extreme conditions..
Keywords: Biodegradation, Phenolic, Industrial wastewater, Halophilic bacterial consortium, HPLC. |
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Supervisor |
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Prof. Bassam Aljohany |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1444 AH
2022 AD |
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Co-Supervisor |
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Dr. Arulazhagan Pugazhendi |
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Added Date |
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Monday, February 27, 2023 |
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Researchers
| رحاب محمد الوهبي | Alwahbi, Rehab Mohammed | Researcher | Master | |
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