جداسازي و شناسايي ميكروارگانيسمهاي گوگردخوار از لجن تصفيهخانه فاضلاب پالايشگاه نفت تهران
Journal Title: آب و فاضلاب - Year 2016, Vol 27, Issue 4
Abstract
Isolation and Identification of Sulfur Degrading Bacteria in the Sludge from Tehran Refinery Wastewater Treatment Abstract Identification of sulfur-degrading microorganisms is a major step in microbial desulfurization of organic compounds, especially oil. Microbial desulphurization is ecologically safe and economically justifiable; hence, the importance of knowledge on the identification, isolation, and adaptation of microorganisms from operational, economic, and environmental viewpoints. The objective of this descriptive‒applied research was to identify and isolate sulfur-degrading bacteria in the sludge from Tehran refinery wastewater treatment plant. For this purpose, 120 samples (10 samples per month over a 12‒month period) were collected from different locations and elevations of the sedimentation basin. The samples were then stirred and homogenized before they were transferred to the laboratory where they were cultured on specific and differential media to allow the microorganisms to grow. Finally, tests were performed and the following bacteria were identified in the samples: Brevundiomonas vesicularis, Acinetobacter spp, Clostridium spp, Alcaligenes spp, E.coli, Bacillus spp, Klebsiella spp, Acromobacter spp, and Desulfovibrio spp. Results indicate that all the bacteria identified in the samples used sulfur as their only source of energy. Another important contribution of this study is that Brevundiomonas vesicularis is for the first time identified in this study as a sulfur-degrading one.
Authors and Affiliations
Reza Shokouhi, Mohammad Yousef Alikhani, zahra Kashitarash Esfahani
اولويتبندي پارامترهاي مؤثر بر هزينههاي توزيع، خريد، تصفيه و نگهداري تأسيسات آب (مطالعه موردي: شرکتهاي آبفاي استان کرمانشاه)
Investigation and Prioritization of the Parameters Involved in Water Distribution, Purchase, Treatment, and Facility Maintenance Costs (A Case Study of Kermanshah Province Water and Wastewater Company) Abstract An imp...
توسعه عملکرد روشهاي تعمير خطوط لوله فاضلاب به کمک روشهاي نوين حفاريهاي بدون ترانشه (مطالعه موردي: شهر اصفهان) Developing the Performance of Sewage Pipelines Repairing Using Trenchless Methods (Case Study: Isfahan)
Abstract Nowadays, the using modern trenchless methods for repairing sewer networks have been developed in most countries. Generally, for repairing the sewage lines using trenchless methods, bypassing the repair zone is...
سنتز کامپوزيت ژل کربوکسي متيل سلولز-مونت مورلونيت و کارايي آن در حذف کاتيون مس دو ظرفيتي از محلولهاي آبي
Synthesis of Carboxymethyl Cellulose-Montmorillonite Hydrogel Composite and Studying its Function for Copper Cation Removal from Aqueous Soluti In this study, composite hydrogel was provided based on carboxymethyl cellu...
عملکرد فيلترها پس از شستشوي معکوس با بررسي ميزان كاهش کدورت و شمارش زئوپلانكتونها در تصفيهخانه آب اصفهان
Evaluating Filters Operation after Backwash by Examining Turbidity Decrease and Counting Zooplanktons in Isfahan Water Treatment Plant One of the reasons for poor performance of filters is their being backwashed. The p...
حذف سولفید از پساب با استفاده از فناوری جدید پیل سوختی میکربی و تولید همزمان انرژی پاک
Sulfide Removal from Wastewater Using the New Microbial Fuel Cell Technology with Simultaneous Clean Energy Generation Abstract Wastewater is nowadays a major concern in human societies that has encouraged many scient...