For oily wastewater from aldaura refinerytreatment plant

مقدم أطروحة جامعية

Muhammad, Harith Ayyad

مشرف أطروحة جامعية

al-Mukhtar, Riyad Sadiq Muhammad
Abd al-Hamid, Qusayy Fadil

الجامعة

الجامعة التكنولوجية

الكلية

-

القسم الأكاديمي

قسم الهندسة الكيمياوية

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

الملخص الإنجليزي

The membrane bioreactor (MBR) integrates well conventional activated sludge system with advanced membrane separation for wastewater treatment.

The aim of this work is to investigate submerged MBR System for the treatment of oily wastewater in Al-daura refinery.

The MBR process retains a high concentrations of mixed liquor suspended solids (MLSS), giving a numbers of avails such as smaller aeration tank, lower sludge wastage, higher effluent quality and higher ability of shock loading.

In the present study, two flexible glass reactors (30 liter) were used, with 18 liter of contaminated wastewater brought ^om wastewater treatment unit in Al-Daura Refinery, two liters of activated sludge with 5000 mg/l of MLSS were used brought from recycle aeration tank.

Hollow fiber membrane manufactured in the University of Technology/ Chemical Engineering Department was used as biomembrane with special properties to bear high transe membrane pressure (TMP).

The system was run under two stages; first stage was the building of the system and checking for any leakage and concluded with the selection of the best TMP which was -450 mmHg to give 300 ml/hr of effluent.The system was started with 1000, 500 mg/l MLSS for and the optimum concentration of MLSS was selected which was 1 g/l and considered as initial concentration for other runs.

The second stage included the effect of preheating influent wastewater with different temperatures of (45°, 55°) at different preheating periods of (15, 30, 45) min on the performance of ^BR and the removal efficiency of COD, BOD, Oil content, Phenol, TDS and turbidity was detected .

It was found that the removal of COD is improve to reach 71%, 60 for BOD.

And it was found the removal of Phenol and Oil reach 99.9%, turbidity removal is excellent at all temperatures, reaching 99 4% It was observed an increase in TDS as function of time, it is noted that TDS concentration reaches 1881 at the optimum conditions due to changes of sulfates found in influent water to sulfides leading to increase in dissolved salts.

التخصصات الرئيسية

العلوم الهندسية والتكنولوجية (متداخلة التخصصات)

الموضوعات

• الصرف الصحي
• مياه الصرف الصحي

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-417767