2024-04-11T01:42:59Z
https://etj.uotechnology.edu.iq/?_action=export&rf=summon&issue=13422
Engineering and Technology Journal
ETJ
1681-6900
1681-6900
2019
37
6A
Study on Removal of Vanadium from Iraqi Crude Oil by Prepared Nanozeolites
Amin
Tamer
Faras
Mohammed
Luma
Mahmood
Marwan
Hussein
Mahdie
Hanyn
The present study has been conducted to investigate the removal of vanadium from Iraqi crude oil by prepared zeolite nanoparticles. Ball milling was used as a top-down approach to synthesize zeolite nanoparticles. Different variables such as adsorbent loading, Vanadium loading, and operating time were investigated for their influence on Vanadium removal. Experimental results of adsorption test show that both Langmuir and Freundlich isotherms predict well with the experimental data. Kinetic analysis of the studied system gives the following linear equations, For Langmuir isotherm: 1ππ=1.6505 1πΆπ−0.0139 with R2 = 0.9738, For Freundlich isotherm: ππππ=1.0848 1πΆπ – 0.4412 with R2 = 0.9711XRD and EDX analyses reveal the noticeable uptake of zeolite for V. In crude oil, experimental results indicated that for zeolite loading at 1 g/100 ml oil and within approximately 6 h, the removal efficiencies of V were 65, 40, and 30% at vanadium loadings of 70, 80, and 90 ppm respectively. Long-time tests revealed the high capability of zeolite A for vanadium removal.
Heavy Metals
crude oil, zeolite A
mechanical milling, isotherm models
2019
06
25
188
194
https://etj.uotechnology.edu.iq/article_168785_8ed54712299caf6d2726bf8ca020da08.pdf
Engineering and Technology Journal
ETJ
1681-6900
1681-6900
2019
37
6A
Improving the Properties of Main Drainage Water by Using of Magnetic Field Technique
Olla
Kareem
Abdul Hameed
Al-Obaidy
Riyad
Al-Anbari
In this research, main drainage channel treated by using a magnetic field with a density of (6000 Guesses). The general drain water samples flowed through the magnetic field with three levels of treatment (5 minutes, 15 minutes and 30 minutes) depending on the contact time. After treatment, it was found that the magnetic field works to improve more than ten physical and chemical properties of water. Essentially, Magnetic treatment has had a significant effect on the high salt content found in general drain water samples as it has been reduced and converted into simpler compounds. In addition, the magnetic field has an important role in increase the percentage of dissolved oxygen in water.
magnetic water
physical Properties
salinity
Water Treatment
2019
06
25
195
200
https://etj.uotechnology.edu.iq/article_168786_0e0bf156f7ec1cef1a41e2fc9ec8c986.pdf
Engineering and Technology Journal
ETJ
1681-6900
1681-6900
2019
37
6A
Modification of Prepared (Al 2024/Alumina/Mn) Composite by Laser Surface SiC Clad Layer
Marwa
Juber
Amer
Majeed
Mohammed
Hamza
Thair
Tawfiq
The present work shows the cladding process of silicon carbide on the substrate of prepared composite (Al 2024/Alumina/Mn) by using a laser beam (pulsed Nd-YAG). To obtain the desired results, the best laser parameters were chosen. The parameters of the laser beam that have chief affected during the experiments in this work are peak power (1.9)kW, work frequency (8)Hz and pulse duration (5.3)ms, the preplaced powder technique favorite during a cladding process and the results in this work were proved by SEM, micro-hardness, EDS, and chemical corrosion tests. The results of the experimental work have shown that a micro-hardness increased about (28%) times for Aluminum/Alumina composite by silicon carbide cladding compared with the original value of micro-hardness, and thickness of the cladding layer was about (34μm). The resistance of corrosion was enhanced with about (35%) for the Aluminum/Alumina composite with SiC cladding.
aluminum
Laser cladding
Silicon Carbide
2019
06
25
201
206
https://etj.uotechnology.edu.iq/article_168787_a5c7be02d31bdc5c858794cf53d7cdbc.pdf
Engineering and Technology Journal
ETJ
1681-6900
1681-6900
2019
37
6A
Removal Performance Assessment of Dyes in Solution Using Mesoporous MCM-41 Prepared from Iraqi Rice Husk
Najat
Saleh
Anaam
Sabri
Ban
Abdul Hussein
In this study, mesoporous silica MCM-41 material was synthesized using Iraqi rice husk for the first time, as silica precursor and Cetyltrimethylammonium bromide (CTAB) as a template. MCM-41 was characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), BET surface area, Fourier transform infrared (FTIR) spectroscopy and Thermal Gravimetric Analysis (TGA). Then the ability of MCM-41 as adsorbents were tested to treat dyes as one of the organic pollutants from synthetic wastewater . The adsorption behavior of Gentian violet(GV), Methylene blue(MB) and Congo red(CR) dyes from synthetic wastewater onto mesoporous MCM-41 was tested. Batch adsorption was employed to determine the effects of pH (2-11), adsorbent dose (0.05-1g), contact time (0–200 min), initial concentration (25-300 mg/L) and temperature (293,313,333Ν¦ K). It was found that MCM-41 has higher potential for adsorption of basic dyes (GV, MB) and lesser for acidic dye (CR) from aqueous solution in batch system .Adsorption isotherms were fitted with the Langmuir, Freundlich, and Temkin models. It was found that the Langmuir adsorption isotherm model for GV and CR had the best fit with; on the other hand, the Freundlich adsorption isotherm model had the best fit for MB.
MCM-41
Rice husk
Gentian violet
methylene blue
Congo red
adsorption
2019
06
25
207
213
https://etj.uotechnology.edu.iq/article_168788_282f199bb785f11679d08f32b2a60078.pdf
Engineering and Technology Journal
ETJ
1681-6900
1681-6900
2019
37
6A
Physical and Chemical Characteristics Comparison of the Drinking Water and Water Produced from the Conventional and Modification Solar Water Distillery
Hussein
Mohammed Ali
Sabah
Ahmed
A comparison of the physical and chemical characteristics of water samples produced from the conventional and modification solar water distilleries, and water samples of networks from different regions in Kirkuk were carried out. Two samples of each water type were tested. The study has focused on measuring the total dissolved solids, pH, electrical conductivity, sodium, calcium, potassium, magnesium, sulfate, nitric and chloride. The results show that all tests of distillate water produced from the solar water distillery are within Iraqi and world standards lower than the other samples, but only pH values ranged from 7 to 8.3, which are within the standard specifications.
Drinking Water
Solar Water Distillery
chemical
Physical
Kirkuk City
2019
06
25
214
221
https://etj.uotechnology.edu.iq/article_168789_6922fc0c7e59126bc99586ef0663a021.pdf