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امتزاز صبغة الكونغو الحمراء باستخدام مسحوق قشرة الجوز : تحليل نهج الاستجابة السطحية == Congo Red Dye Adsorption Using Walnut Shell Powder : Response Surface Approach Analysis (RSA

Author name: عبد العزيز حاتم محمد
Supervisor name: حنين احمد خضير كراغول
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department of Environmental Engineering
Language: English
University location: Salahaddin
Key words:
  • Adsorption of Congo red dye
  • Response Surface Approach Analysis (RSA)
  • Walnut Shell adsorbent
First pages:
Abstract: The use of Congo red dye in the textile, is a source of pollution. In this study, the adsorption removal of walnut shell powder as a bio-adsorbent for Congo red dye was evaluated. The surface of the adsorbent was characterized using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), energy dispersive X-ray (EDX), X-ray diffraction (XRD), surface area determination (BET), and pH point of zero charge (pHpzc). Four factors affecting the dye adsorption process were studied including pH, initial dye concentration, adsorbent dose, and contact time. The optimization study was conducted using the response surface methodology (RSM) by using the Box-Behnken design (BBD). The results showed that the highest dye removal percentage was 83% with operating conditions of pH 2, an initial dye concentration of 25 mg/L, an adsorbent dose of 1 gram/100 mL, and a contact time of 90 minutes. Meanwhile, the dye removal percentage predicted by RSM was 85% with pH 2, an initial dye concentration of 31.32%, an adsorbent dose of 1 g/100 ml, and a contact time of 92.47 minutes. The Langmuir and Freundlich models were applied to the experimental data. The results of the isotherm study showed that the adsorption conforms to the Langmuir equation with a value of adsorption capacity qmax = 35.11 mg/g. The kinetics of dye adsorption on the surface of walnut shells were studied by applying the pseudo-first-order model and the pseudo-second-order model. The results showed that the adsorption follows the pseudo-second-order model with R2 = 99.9. To increase the adsorption capacity of the walnut shell powder, the surface was modified in two ways: The first one was to convert the shells to nano diameter by grinding. while the second method was to prepare the activated carbon. Both methods gave high removal rates under the worst conditions obtained when using the material in its raw form, which were 92% and 98%, respectively. This study showed that the walnut shell is an effective absorbent material. It is economical to remove Congo red dye from water contaminated with this dye.
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تاثير بعض المؤشرات التشغيلية على اداء وحدة الحماة المنشطة ذات التهوية المطولة

Author name: مسعود محسن هزاع اللهيبي
Supervisor name: وليد محمد شيت العبد ربه
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
University location: Salahaddin

اثر ارتفاعات الابنية وتراصها على تلوث الهواء كمؤشر للسعة البيئية : دراسة تطبيقية في بعض شوارع كركوك == The Effect of Buildings Height And Their Proximity on Air Pollution As An Indicator For Environmental Capacity : Applicative Study In Some of Kirkuk Street

Author name: مريم حسن احمد سليمان بيك
Supervisor name: عباس حميد سليمون | ميسون محي هلال
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
Language: Arabic
University location: Salahaddin
First pages:
Abstract: توصلت الدراسة الحالية من خلال القياسات الموقعية في مواقع منتخبه من شوارع مدينة كركوك وهي شارع الجمهورية، وشارع طريق بغداد، وشارع القشلة الى ماياتي : لقد تبين ان اعلى قيمة سجلت للتلوث بغاز اول اوكسيد الكاربون في شارع الجمهورية كانتppm (88) في النقطة (5) ا | The present study, through field surveillances in selected areas of Kirkuk Streets as studies areas which are Al - Jimhoriya Street, Baghdad - road street, Al - Qishla street, arrived at the following : It was found that the maximum ratio of pollution wi

دراسة نوعية مياه الامطار وتاثيرها على بعض خصائص التربة في قضاء الطوز == Study of Rainwater Quality And Its Effect on Some Soil Characterstics In TUZ Region

Author name: شنو مصطفى علي محمد
Supervisor name: اياد فضيل قاسم النعمة | احمد سعيد عثمان الدباغ
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
Language: Arabic
University location: Salahaddin
First pages:
Abstract: اجريت هذه الدراسة للتحري عن نوعية مياه الامطار وتاثيرها على بعض خصائص التربة في قضاء الطوز ؛ اذ تضمنت الدراسة فحوصات لنوعية مياه الامطار لمعرفة تاثير الملوثات عليها، كما تضمنت الدراسة التحليل الكيميائي لترب بعض مناطق القضاء. تم اختيار ثمان مناطق لغرض تح | This study is conducted to investigate rainwater quality and its effect on some soil characteristics in Tuz region. The study involves determination of rainwater and soil characteristics in sites distributed inside Tuz region. Eight sites were monitored f

استنباط معامل نوعية المياه لنهر دجلة بين الشرقاط والبوعجيل == Development of Water Quality Index For Tigris River Water Between Alsharqat And Alboajeel

Author name: محمد مثنى نعمان
Supervisor name: اياد فضيل قاسم النعمة
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
Language: Arabic
University location: Salahaddin
First pages:
Abstract: يستعمل معامل نوعية المياه كاداة لتصنيف نوعية المصدر المائي وتحديد صلاحيته للاستعمالات المختلفة ( المنزلية والصناعية والري ) وتعيين اسلوب المعالجة المطلوبة لمياه ذلك المصدر. تضمنت الدراسة الحالية تقييم نوعية مياه نهر دجلة بين مدينة الشرقاط وقرية البوعجيل | Water quality index is used as a tool to classify water resources qualitatively and quantitatively for various uses. Moreover it can be used to determine the required treatment methods to bring water into standard level.This work tried to use water qual

ازالة بعض العناصر الثقيلة من المخلفات السائلة باستخدام الكاربون المنشط الحبيبي == Removal of Some Heavy Metals From Liquid Waste By Using Granular Activated Carbon

Author name: عباس علي كنوش حمد الجبوري
Supervisor name: مزهر مهدي ابراهيم الدوري
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
Language: Arabic
University location: Salahaddin
First pages:
Abstract: تهدف الدراسة الى ازالة العناصر الثقيلة (النحاس والمنغنيز والزنك ) من مياه الصرف الصناعية في مصفى بيجي باستخدام عملية الامتزاز بواسطة الكاربون المنشط الحبيبي وامكانية تمثيل العملية بنموذج رياضي. تم انجاز هذا البحث على مرحلتين، تضمنت المرحلة الاولى تجارب نم | L'objectif du présent travail est d'éliminer les métaux lourds (cuivre, manganèse et zinc) dans les eaux usées de la raffinerie de Baiji industrielle utilisant le charbon actif granulaire (GAC). Dans la première étape de la présente étude, un réacteur dis

استعمال تقنيتي الاستخلاص بالمذيبات وكواسر الاستحلاب لمعالجة الخبث النفطي الناتج من مصفى بيجي == Using The Solvent Extraction And Demulsifiers Technique To Treat The Oily Sludge From Baiji Refinery

Author name: عائشة فلاح عمر محمد
Supervisor name: مزهر مهدي ابراهيم الدوري
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
Language: Arabic
University location: Salahaddin
First pages:
Abstract: Water in oil emulsion occurs at many stages in the production and treatment of crude oil. The oily sludge stability results from the presence of interfacial barrier preventing coalescence of the dispersed water droplets. This is due to the presence of pol

استخدام المرشح الرملي البطيء في ازالة العكورة من مياه نهر دجلة في مدينة تكريت == The Use Of Slow Sand Filter To Remove Turbidity from Tigris River at Tikrit City

Author name: عبد الحميد عبد الرحمن محمود بدي
Supervisor name: وليد محمد شيت
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering - Department Of Civil Engineering
Language: Arabic
University location: Salahaddin
First pages:

دراسة تاثير بعض العوامل التشغيلية للخلية الكهروحيوية على قابلية نزع ماء الحماة المنشطة باستخدام المعالجة الهوائية واللاهوائية == The Study Of Effects Of Some Operation Factors For Bioelectricity Cell On Activated Sludge Dewaterability By Using As A Aerobic And Anaerobic Treatment

Author name: سماهر جاسم محمد حوري
Supervisor name: Waleed M. Sh . AL- Abdraba
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering
Language: English
University location: Salahaddin
First pages:

تركيبة ومعدل نشوء النفايات الصلبة المنزلية لمركز تكريت وناحية العلم وتحديد موقع الطمر الصحي الامثل == Composition & Generation Rate of Domestic Solid Waste for Tikrit Centre & AL-Alam Region & Determination of The Optimal Site for Sanitary Landfilling

Author name: حنين احمد خضير القره غولي
Supervisor name: وليد محمد شيت العبد ربه
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering
Language: Arabic
University location: Salahaddin
First pages:

استخدام مرشحات ثنائية الوسط في ازالة مركبات الفينول والباراكلوروفينول باستخدام كاربون منشط تجاري ومصنع محليا من نوى التمر == Using Dual Media Filters tO removE phenol and parachlorophenol compounds by commercial and manufactured date stones based ACTIVATED CARBON

Author name: نادية نزهت صبيح الربيعي
Supervisor name: مزهر مهدي ابراهيم الدوري
General topic: Civil Engineering
Specific topic: Environmental Engineering
Degree: Master
University: Tikrit University - College Of Engineering
Language: Arabic
University location: Salahaddin
First pages: