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معالجة تلوث المياه الصناعية الملوثة بالكبريتات في مصفى الدورة العراق
Author name:
روعة رضوان عبد الباري
Supervisor name:
تغريد هاشم جاسم النور
General topic:
Chemistry
Specific topic:
Chemistry
Degree:
Master
University:
University of Baghdad
Language:
English
University location:
Baghdad
First pages:
25T1763 - p.pdf
Abstract:
Purpose of this research was the examination of the environmental situation of industrial wastewater of Al - Dora - Refinery . Also the effect ofchemical precipitation method applied to treat polluted wastewater wasinvestigated .AL - Dora Refinery consumes big amounts of water for different purposes . This water is heavily polluted during its passage through the refinery andcause great damage to the environment unless the water is treated toremove pollution . This research was carried out in three main stages. Thefirst stage included the examination of polluted water passing through five main stations of the refinery and going to the treatment unit by measuringsome essential physical and chemical properties, like water temp. ,electrical conductivity , turbidity, PH - Value , total dissolved solids T.D.S , suspended solids , sulphate ion ,phosphate ion , biological oxygen demand (BOD) , chemical oxygen demand (COD), phenol and oils .The secondstage included measuring of the above menthioned physical and chemical properties between the treatment unit ( P10) and outgoing water of ( P18)during the period from November 2014 until September 2015.Reasons for increase and decrease of pollutants were discussed and theresults were analyzed and discussed The third stage included the treatment of sulfate - polluted water using calcium hydroxide . Its effect on differentsulfate concentrations was shown (1000,800,450 and 285) ppm Tests werecarried out under the following conditions . Variable time and constantconcentrations .and constant time and variable concentrations . PH - Values , sulfate concentration(%)،TDS, electrical conductivity and turbidity weremeasured before and after treatment .The results of the research showed very good efficiency of water treatment with calcium hydroxide reducing sulfate concentration under theinternationally allowed limit of 400 ppm.Statistical studies were carried out on the water samples.
