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استخدام بعض المخلفات الصلبة والمواد البوزوالنيه في الخلطات الخرسانية ل نتاج خرسانة صديقة للبيئة
Author name:
معتز حميد نايل
General topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
استخدام المخلفات الصناعية والزراعية للانتاج الخرسانة الخضراء
Author name:
رانيا فاضل جويد
General topic:
Civil Engineering
Degree:
Higher Diploma
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
استخدام الالياف الزجاجية المعالجة لتحسين انضغاطية الترب الطينية
Author name:
شذى سامي علوان
General topic:
Civil Engineering
Degree:
Higher Diploma
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
استجابة الفشل للوحدات الخرسانية مسبقة الصب باستخدام نظام الخبير
Author name:
سيماء عامر غنام
General topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
اداء البلاطات الخرسانية المسلحة تحت تاثير احمال اللي
Author name:
اسامة عبد الرزاق مخلف طعمة
General topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
اداء الاعمدة الخرسانية المسلحة القصيرة المعرضة للتاكل تحت احمال انضغاط (دراسة تجريبية)
Author name:
لبنى براء محمود
General topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
اداء اساس الماكنة المستندة على تربة جبسيه محسنة
Author name:
مازن علي حسين العزاوي
General topic:
Civil Engineering
Degree:
Doctorate
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
اختبار العملي للعتبات الخرسانية المسلحة المحتويه على EPS المعالج
Author name:
ياسر غائب حسين
General topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
احتمالية ظهور مطارات محلية جديدة في المنطقة الوسطى من العراق : باستخدام النظم الديناميكية
Author name:
براء رعد محمد العبيدي
General topic:
Civil Engineering
Degree:
Doctorate
University:
Tikrit University - College Of Engineering
University location:
Salahaddin
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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هايدروجيولوجية وهايدروكيميائية حوض كلار - شمال شرق العراق
Author name:
ريبوار ناصر دارا
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
نمذجة الجريان فوق المسيل المائي المدرج باستخدام ديناميكية الموائع الحسابية
Author name:
افنان صلاح امين
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
نمذجة الترب الجبسية الحاوية على تكهفات
Author name:
ياسر خالد محمد العاني
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
مقاومة القص وسلوك الاكتاف الخرسانية المسلحة بوجود ام عدم وجود الالياف الكاربونية
Author name:
سيروان خورشيد رفيق الزهاوي
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
مقاومة القص للعتبات ىالخرسانية عالية المقاومة ذاتية الرص والمسلحة بالالياف الفولاذية
Author name:
خالد احمد عبد الله النعيمي
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
معالجة المخلفات السائلــــــــــــة لمعمــــــــــل البان تكريت باستخدام مرشح لاهوائي متبوع بمعالجة هوائية
Author name:
رند رافع احمد حسون
Supervisor name:
اياد فضيل قاسم النعمة
General topic:
Civil Engineering
Specific topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
قابلية التحمل للاساس الحلقي المسند على تربة رملية مسلحة باستخدام المشبكات الصناعية (GEOGRID)
Author name:
محمد خير الله احمد الدوري
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
قابلية التحمل لاساس شريطي محمل لا مركزيا على تربة رملية مسلحة
Author name:
اكرم حسن عبد الطائي
Supervisor name:
جودت كاظم عباس
General topic:
Civil Engineering
Specific topic:
Structural Engineering - Soil Mechanics
Degree:
Master
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
سلوكية الركائز الدقيقة في الترب الضعيفة
Author name:
انسام احمد جواد الكروي
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
سلوك العتبات الخرسانية المسلحةو المعززة بالياف الفضلات البلاستيكية تحت تاثير حمل الانثناء
Author name:
محمد عيسـى صالح الراوي
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
سلوك البلاطات الفيروسمنتية الحاوية على طبقة وسطية من مونة فتات المطاط لمخلفات الاطارات
Author name:
هديل رياض خطاب
Supervisor name:
عزيز ابراهيم عبد الله
General topic:
Civil Engineering
Specific topic:
Civil Engineering
Degree:
Master
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
سلوك البلاطات الخرسانية المسلحة المجوفة احادية الاتجاه والمعززة بالالياف
Author name:
واصف خضير مجيد
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
سلوك الانحناء التجريبي والتحليلي للالواح الخرسانية المسلحة المحشوة
Author name:
مهدي عثمان حسن
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
سلوك الانثناء للعتبات الخرسانية المسلحة بالالياف ذات مقطع T
Author name:
عدنان ابراهيم عبد الله
General topic:
Civil Engineering
Specific topic:
Civil Engineering
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
دراسة معاملات مقاومة التربة الجبسية غير المشبعة
Author name:
هدى وجود الرفيعي
Supervisor name:
احمد عبد الحميد العبيدى
General topic:
Civil Engineering
Specific topic:
Structural Engineering - Soil Mechanics
Degree:
Master
University:
Tikrit University - College Of Engineering - Department Of Civil Engineering
University location:
Salahaddin
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