http://localhost:8080/xmlui/handle/123456789/303 2026-03-12T04:39:41Z 2026-03-12T04:39:41Z ZAYED, ABDUL BASIT ALI http://localhost:8080/xmlui/handle/123456789/339 2024-03-25T09:23:37Z 2022-01-01T00:00:00Z

STUDY OF BATCH ADSORPTION OF METHYLENE BLUE IN AQUEOUS SOLUTION USING PINE ACTIVATED CARBON AS AN ADSORBENT ZAYED, ABDUL BASIT ALI Dyes have been widely used in many industries (such as; textile, paper, rubber, pharmaceutical, and food) to color their products. The presence of dyes in wastewater is harmful for human beings, living organism and has toxic effect on microorganism’s live. In this study, the removal of methylene blue MB dye from aqueous solutions was investigated .The adsorption studies were carried out by batch experiments using physical activated carbon prepared from the pine tree .The effect of contact time, pH, initial dye concentration, adsorbent dose, particle size, agitation speed, and temperature was explored. In addition, isotherms adsorption studies were estimated for determination of the equilibrium adsorption capacity using two widely applied isotherms: Langmuir, Freundlich. Experimental data were also tested using two kinetic models: the pseudo-first-order model and the pseudo-second-order model. Based on these models, the kinetic parameters (rate constant and equilibrium adsorption capacity) for MB adsorption on AC were calculated. النسخة الورقية كاملة موجودة بمكتبة كلية الهندسة المشرف : MR. KHALED S. ALJFAIRI

2022-01-01T00:00:00Z Al Qahwaji, Abdul Razzaq S. Dakhil, Abdul Razzaq m. http://localhost:8080/xmlui/handle/123456789/338 2025-01-06T09:25:48Z 2019-01-01T00:00:00Z

Study of Using Propane Gas in Gas Cooling Rings Produced from Oil Fields and The Design of Some Production Units Al Qahwaji, Abdul Razzaq S.; Dakhil, Abdul Razzaq m. This research is about the refrigeration gas at fields. This thesis began with an introduction of oil in the plant separator between gas and oil and reduces the pressure on air pressure through several stages of insulation. Starting from the extraction of the mixture, this contains oil, water and gas from the well and then inserted into the separation unit. Oil from the bottom, gas from the top and water in the middle, these phases are separated depending on the density. The aim of the study was to replace the refrigeration gas by propane in the cooling loop. Also to design some of industrial units (storage tank,separator and distillation). In this research we replace propane gas in the cooling system of natural gas instead of Freon due to environmental risks of Freon gas to the ozone layer also, economic motives. The Hysys program was used to simulate these modules. The cost of propane gas lower than the cost of Freon. The characteristics of propane gas was studied and compared with Freon gas and it was found that Propane gas has the higher efficiency compared to Freon. In addition, Freon, which is internationally banned. Finally, some basic units were designed such as (distillation and separator). The energy difference of using propane and Freon in refrigerants is about 10,500 Kj/h were the propane consumes less energy. However propane can cause a dangerous explosion, the results showed that it is possible to use propane instead of Freon in cooling loops with safety considerations. It would be benefit to use C3 in order to protect the environment of dangers pollutants. النسخة الورقية كاملة موجودة بمكتبة كلية الهندسة المشرف :Mr. Khalid Abed Mr. Mohamed Farhat

2019-01-01T00:00:00Z Aeleewan, Ali Salim Brik, Ziad Emhemed http://localhost:8080/xmlui/handle/123456789/337 2024-03-25T09:22:46Z 2021-01-01T00:00:00Z

Adsorption of Copper(II) from Aqueous Solution by Activated Carbon prepared from Orange Charcoal Aeleewan, Ali Salim; Brik, Ziad Emhemed Heavy metals are still being released into our environment in large quantities. It is even increasing in some parts of the world. Pollution of water resources caused by heavy metal disposal has been a growing global concern in recent decades. One of these poisonous metals is copper. In this study, we used Orange Charcoal prepared from orange trees wood, which can be found in local markets in Libya as a lot and low cost. to remove copper ions Cu +2 from aqueous solution was removed using Orange Charcoal as an adsorbent. The effects of concentration, contact time, PH, adsorbent dosage, and chemical activation by HCL and NaOH were all investigated in fixed bed column in this study. the equilibrium adsorption capacity of the adsorbents for Cu +2 was obtained by Langmuir isotherm. The results showed that Orange charcoal can be an effective adsorbent for copper(II) removal. النسخة الورقية كاملة موجودة بمكتبة كلية الهندسة المشرف : Mr. Mohamed Ali Al deib

2021-01-01T00:00:00Z ben nour, Abdalsttar Abdalnour Eshtiwi, Haitham Emhemmed abugoffa, Abdalnasser Milad http://localhost:8080/xmlui/handle/123456789/336 2024-03-25T09:22:08Z 2021-01-01T00:00:00Z

REMOVAL OF METHYL ORANGE DYE USING ACTIVATED CARBON DERIVED FROM PINE AGRICUITURE WASTES ben nour, Abdalsttar Abdalnour; Eshtiwi, Haitham Emhemmed; abugoffa, Abdalnasser Milad Textile effluents are considered as potential sources of water pollution because they contain toxic dyes. The discharge of azo dye in to environment is of great alarmed due to color, toxicity, mutagenicity, and carcinogenicity of the dye. This work to study the possibility of using activated carbon derived from Pine branches in the removal of MO dye from aqueous solution by batch operation and Adsorption Technique. Various operating parameters such as solution pH, equilibrium contact time, initial dye concentration, adsorbent dosage, particle diameter and temperature have been studied. The results indicated that the adsorption of MO decreased with increasing pH, and the optimum solution pH for the adsorption of MO was found to be 7. The adsorption process increases with increasing dosage of AC, also the amount of MO removed changes with MO initial concentration and contact time. Adsorption was rapid and occurred within 140 min. for MO concentration range from 10 to 30 ppm (mg/l). About 0.8 g of AC was found to be enough remove 83.106% of 10 mg/l initial MO dye concentration from 20 mL of dye solution. The optimum agitation rate is 200 rpm. The optimum particle diameter and temperature are 0.315 mm. and 25 C° respectively. The equilibrium adsorption data for MO were fitted well with the Langmuir and Freundlich adsorption isotherm models. Satisfactory agreement between experimental data and the model- predicted values was expressed by the correlation coefficient (r2). The maximum adsorption capacity of AC was found to be 0.7312 mg/g. So, the results indicated the suitability use of the activated carbon derived from Pine branches as low cost and natural material for reliable removal of MO from water and wastewater effluents. النسخة الورقية كاملة موجودة بمكتبة كلية الهندسة المشرف : Mr. Nooraddein A. Ekrayem

2021-01-01T00:00:00Z