title

کاهش آلاینده ها از پساب با استفاده از باکتری های آلکالوفیل در کارخانجات پتروشیمی

حاجی پور, سعیده and حشمتی پور, زهیر and سیادت, سیدداور and محمدی, فرزاد (1391) کاهش آلاینده ها از پساب با استفاده از باکتری های آلکالوفیل در کارخانجات پتروشیمی. در: The 13th Iranian & The Second International Congress of Microbiology, July 14 – 16, 2012, Ardabil - Iran.

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Title

Reduction Pollutants in Wastewater Using Alkalophilic Bacteria in Petrochemical Plants

English Abstract

Background & Objectives: Generally petrochemical wastewater have high pH (pH>11) and COD. According to these characteristics, the activities of microorganisms are difficult in this wastewater and activated sludge rarely occurs. On the other hand a group of microorganisms called Alkaliphiles, are able to grow at high pH easily with high activity. Methods: In this study we investigate activities of the alkaliphilic bacteria in petrochemical wastewater and estimate their effects on wastewater. In this study, alkaliphilic bacteria have been isolated from petrochemical wastewater by Horikoshi medium and their phenotypic and genotypic characteristics were detected. Then we prepared the conditions for optimum growth of alkaliphilic bacteria in the wastewater. In order to find the abilities and activities of these bacteria, we estimated some factors in their medium like pH, heavy metal content, COD value, aeration, temperature and so on before and after bacterial growth. Results: The result shows after preparing the conditions of optimal growth and treatment wastewater with alkaliphilic bacteria, the pH of wastewater had been reduced 2 units and also COD shows a reduction about 60%. Activity of these bacteria in wastewater will reduce the heavy metals too. Conclusion: Overall, this study is unique in its kind. But comparing to past studies that shows activated sludge is able to reduce or remove pollutants our study have suitable efficiency.

Item Type:Conference or Workshop Item (Poster)
زبان سند : انگلیسی
نویسنده مسئول :سعیده حاجی پور
کلیدواژه ها (انگلیسی):Alkaliphilic ; Petrochemical Wastewater ; Horikoshi Medium ; COD
Subjects:WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health

QW Microbiology and Immunology
Divisions:Vice Chancellor for Research and Technology > Deputy for Research and Technology management and Medical Information > University of Management Conferences and Congresses
ID Code:4580
Deposited By: MS Soghra Golmaghani
Deposited On:07 Jun 1392 09:10
Last Modified:07 Jun 1392 09:10

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