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إمكانية استخدام الغاز الحيوي لإنتاج الطاقة الكهربائية من مصافي المياه العادمة في جنوب بغداد
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يهدف البحث إلى تحليل إمكانية استثمار الغاز الحيوي الناتج من مشاريع تصفية المياه العادمة في جنوب بغداد بوصفه مصدرًا متجددًا لإنتاج الطاقة الكهربائية ، مع التركيز على غاز الميثان بوصفه المكوّن الرئيس ذي القيمة الحرارية العالية . اعتمدت الدراسة على القياسات الميدانية لتراكيز غاز الميثان في مشروعي الرستمية والكرخ الرئيسية خلال فصلي الشتاء والصيف ، مع مقارنة القراءات بين مراحل المعالجة المختلفة، ابتداءً من المعالجة التمهيدية وصولًا إلى المعالجة المتقدمة . أظهرت النتائج وجود تراكيز مرتفعة لغاز الميثان تجاوزت المحددات العالمية ، مع تسجيل أعلى القيم في مراحل المعالجة التمهيدية والأولية ، ولاسيما خلال فصل الصيف ، مما يشير إلى أن هذه المراحل تمثل المصدر الرئيس لانبعاث الغاز الحيوي . كما بيّن التحليل الإحصائي وجود تباين فصلي واضح ، إذ سجلت تراكيز الغاز متوسطات أعلى في فصل الصيف مقارنة بفصل الشتاء ، ويُعزى ذلك إلى تأثير ارتفاع درجات الحرارة في زيادة نشاط عمليات التحلل اللاهوائي للمواد العضوية . واعتمادًا على التقديرات التقريبية، أظهرت الدراسة أن تجميع نحو100 م³ يوميًا من الغاز الحيوي يمكن أن يسهم في إنتاج ما يقارب200 كيلوواط/ساعة يوميًا من الطاقة الكهربائية ، الأمر الذي يعكس جدوى اقتصادية وبيئية واضحة في تشغيل أجزاء من منظومة مشاريع التصفية وتقليل الاعتماد على مصادر الطاقة التقليدية . وتوصلت الدراسة إلى إمكانية استثمار الغاز الحيوي باستخدام تقنيات تحويل الطاقة ، مثل محركات الاحتراق الداخلي وخلايا الوقود ، بما يسهم في خفض الانبعاثات الغازية وتقليل كلف التشغيل ، فضلًا عن تعزيز توجهات الاستدامة البيئية والطاقة المتجددة في منطقة الدراسة .

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Publication Date
Sun May 19 2024
Journal Name
Basrah Journal Of Agricultural Sciences
Investigation on Field Performance of Plowing and Harvesting Potatoes in Southern Baghdad
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This field experiment, was conducted to investigate a comparison of two methods for harvesting potatoes: mechanical and handy when using moldboard and chisel plow for primary tillage and three different distances for planting tubers in the rows 15, 25, and 35 cm in silt clay loam soil south of Baghdad. The factorial experiment followed a randomized complete block design with three replications using L.S.D. 5 % and 1 %. Mechanical harvest recorded the best valid potato tubers at 88.78 %, marketable yield of 31.74 ton. ha-1, efficiency lifted 95.68 %, tubers damage index 28.41, speeding up the harvesting process and reducing time and effort. Handy harvest gave the least damage to potato tubers, 6.02 %, and unlifted potato tubers, 4.32 %. Howe

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Publication Date
Wed Sep 30 2020
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
Effect of measurement and analysis of quality costs on continuous improvement: Applied research in the Directorate General for the distribution of electric power in the Middle Euphrates
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The research aims to identify the theoretical foundations for measuring and analyzing quality costs and continuous improvement, as well as measuring and analyzing quality costs for the Directorate of Electricity Supply / Middle Euphrates and continuous improvement of the distribution of electrical energy,The problem was represented by the high costs of failure and waste in electrical energy result to the excesses on the network and the missing (lost) energy,Thus, measuring and analyzing quality costs for the distribution of electrical energy and identifying continuous improvement leads to a reduction in missing and an increase in sales, as the research reached many conclusions, the most important of which is the high percentage o

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Publication Date
Tue Jan 23 2018
Journal Name
Iraqi Journal Of Market Research And Consumer Protection
ESTIMATION OF SOME CHEMICAL AND PHYSICAL PROPERTIES USING A WATER TREATMENT UNIT VORTISAND COMPARED TO THEIR CONCENTRATION IN WATER PRODUCED BY TRIDINTINAL DRINKING WATER PROJECTS IN BAGHDAD.: ESTIMATION OF SOME CHEMICAL AND PHYSICAL PROPERTIES USING A WATER TREATMENT UNIT VORTISAND COMPARED TO THEIR CONCENTRATION IN WATER PRODUCED BY TRIDINTINAL DRINKING WATER PROJECTS IN BAGHDAD.
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This study was conducted to determine the ability of water treatment system (Vortisand) to reduce some chemical and physical properties for tigris river raw water, It consisted of turbidity, electrical conductivity, pH, total hardness, calcium Hardness as well as temperature in order to determine the unit`s efficiency for reducing their concentration as compared to those in the water produced by some classical potable water projects (Dora and Wathba) in Baghdad. Samples were collected during the cold months (December 2016 and January 2017) and during the hot months (May and June 2017). The results showed that this system has the ability to reduce some properties such as turbidity, the values were 215NTU in raw water and decreased to NTU

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Publication Date
Wed Dec 01 2021
Journal Name
Journal Of Economics And Administrative Sciences
Using Fuzzy Inference to Evaluation Suppliers in Diyala General Electric Industries Company
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The research aims to evaluate the suppliers at Diyala general electric industries company conducted in an environment of uncertainty and fuzzy where there is no particular system followed by the company, and also aims to use the problem of traveling salesman problem in the process of transporting raw materials from suppliers to the company in a fuzzy environment. Therefore, a system based on mathematical methods and quantity was developed to evaluate the suppliers. Fuzzy inference system (FIS) and fuzzy set theory were used to solve this problem through (Matlab) and the problem of the traveling salesman in two stages was also solved by the first stage of eliminating the fuzzing of the environment using the rank function method, w

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Publication Date
Fri Oct 11 2019
Journal Name
Journal Of The College Of Education For Women
The South Baghdad Electrical Station and its Environmental Impact on the Tigris River
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The South Baghdad electrical station located on the eastern bank of the Tigris River south of Baghdad city was selected within the municipality of Karrada between  two  latitude ( 330 15 , 33 0  18 )North  and  longitude ( 44 0  27 , 44 030 ) East . The purpose of the study is to determine the contribution of the station to the effect of pollution of the Tigris water by taking water samples at the station site and two sites, one before and the other after the station, distributed over time periods of three months between each sample of water and the beginning of August and November Shabat and Mayar and analyzed water samples physically, chemically and biologic

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Publication Date
Sat Sep 30 2017
Journal Name
Al-khwarizmi Engineering Journal
Anaerobic Digestion and Codigestion of Chlorella Vulgaris Microalgae Biomass with Wastewater Sludge and Dairy Manure for Biogas Production
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Abstract

 

Anaerobic digestion process of organic materials is biochemical decomposition process done by two types of digestion bacteria in the absence of oxygen resulting in the biogas production, which is produced as a waste product of digestion. The first type of bacteria is known as acidogenic which converts organic waste to fatty acids. The second type of bacteria is called methane creators or methanogenic which transforms the fatty acids to biogas (CH4 and CO2). The considerable amounts of biodegradable constitutes such as carbohydrates, lipids and proteins present in the microalgae biomass make it a suitable substrate for the anaerobic digestion or even c

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Publication Date
Thu Oct 31 2013
Journal Name
Al-khwarizmi Engineering Journal
Simulation of a Wet Sulfuric Acid Process (WSA) for Utilization of Acid Gas Separated from Omani Natural Gas
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In this study, a proposed process for the utilization of hydrogen sulphide separated with other gases from omani natural gas for the production of sulphuric acid by wet sulphuric acid process (WSA) was studied. The processwas simulated at an acid gas feed flow of   5000 m3/hr using Aspen ONE- V7.1-HYSYS software. A sensitivity analysis was conducted to determine the optimum conditions for the operation of plant. This included primarily the threepacked bed reactors connected in series for the production of sulphur trioxidewhich represented the bottleneck of the process. The optimum feed temperature  and catalyst bed volume for each reactor were estimated and then used in the simulation of the whole process for tw

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Publication Date
Sun Jun 01 2014
Journal Name
Journal Of Economics And Administrative Sciences
Designing system cost for water pollution plants in mayoralty of Baghdad
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          There is an increase in the need for cost accounting in all organizations and from different sectors to provide detailed information to the totals of financial accounting, first and help solve problems associated with inventory and analysis, tabulation and allocation of cost elements II and do the planning process and provide the necessary oversight and help to take the right decisions such as pricing decisions that need to Information cost accounting.
And suffer most of the non-governmental organizations from the lack of a cost accounting system provides information on the cost of service in these organizations and the department research sample circle v

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Publication Date
Mon Sep 01 2014
Journal Name
Al-khwarizmi Engineering Journal
Production of Bioethanol from Waste Potatoes
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In this research, production of ethanol from waste potatoes fermentation was studied using Saccharmyses cerevisiae. Potato Flour was prepared from potato tubers after cooking and drying at 85°C. Homogenous slurry of potato flour was prepared in water at solid liquid ratio 1:10. Liquefaction of potato flour slurry with α-amylase at 80°C for 40 min followed by saccharification with glucoamylase at 65°C for 2 hr .Fermentation of hydrolysate with Saccharomyces cerevisiae at 35°C for two days resulted in production of 33 g/l ethanol.

      The parameters studied were; temperature, time of fermentation and pH. It was found that Saccharification process is affected by enzyme Amylo 300 conc

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Publication Date
Sun Jan 13 2019
Journal Name
Arab Science Heritage Journal
استخدام الفرز , الاستدارة والارضية دلائل على طاقة البيئة الترسيبية لتكوين المودود ( جنوب العراق)
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أن تكوين المودود شكل (1)  فى منطقة الدراسة يعتبر من التكاوين المهمة فى منطقة الخليج العربى وايران . لقد تم وصف هذا التكوين لاول مرة  من قبل (1) فى المقطع المثالى فى بئر ( دخان  -1 ) والذى قسمة الى قسمين رئيسين . القسم الاعلى  يتكون من حجر جيرى حامل للدمالق  اما القسم  الاسفل فهو  صلصالى . 

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