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Behavior Of Recycled Aggregate Fibrous Reinforced Beams Under Flexural And Shear Loading, Eyad Sayhood, Ali Resheq, Farah Raoof Aug 2026

Behavior Of Recycled Aggregate Fibrous Reinforced Beams Under Flexural And Shear Loading, Eyad Sayhood, Ali Resheq, Farah Raoof

Engineering and Technology Journal

The use of recycled concrete aggregates (RCA) to replace part or all of the natural coarse aggregates (NCA) in the production of concrete has been on the increase. Such use helps in the protection of the natural resources and in the reduction in the use o f landfills. The experimental work consists of casting and testing ten rectangular simply supported reinforced concrete beams of dimensions (1500*150*240) mm with concentric point load at mid span as well as tests for control specimens to determine the mechanical prope rties of the concert. Five beams of these ten beams were designed to fail …

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Study The Performance Of Dissolved Air Flotation As Industrial Wastewater Treatment Method, Thamer Mohammed, Mohammed Albarazanje Aug 2026

Study The Performance Of Dissolved Air Flotation As Industrial Wastewater Treatment Method, Thamer Mohammed, Mohammed Albarazanje

Engineering and Technology Journal

This research aimed to study the removal efficiency of oilpollutant from industrial wastewater by dissolved-air flotation (DAF)with and without chemical coagulants. The sample test of wastewater isdischarged from Daura Refinery. The performance of dissolved airflotation for example saturation pressure and recycle ratio were studied.The industrial wastewater treated by DAF is carried out with two typesof chemical coagulants: Alum and Polyacrylamid. The treatment methodof wastewater by DAF with and without chemical coagulants and theireffect on the removal efficiency of oil, results were obtained at differentparameters such as saturation pressure (2,5-5.5atm) and recycle ratio(20-50). It has been found the oil removal efficiency …

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Removal Of Nitrate From Contaminated Groundwater Using Solar Membrane Distillation, Alaa Al-Fatlawi, Mohsen Karrabi, Ghassan Abukhanafer, Ahmed Al Samlan Al Samlan Aug 2026

Removal Of Nitrate From Contaminated Groundwater Using Solar Membrane Distillation, Alaa Al-Fatlawi, Mohsen Karrabi, Ghassan Abukhanafer, Ahmed Al Samlan Al Samlan

Engineering and Technology Journal

Nitrate contamination is worldwide water pollution posing a majorhealth hazard to human and animal life. Challenges are being faced to get freshwater for the areas having a low amount of usable water. This study aims toasses and evaluates the feasibility of removing nitrate from groundwater byusing cheap approaches. A pilot-scale solar distillation membrane filter, wasdesigned and constructed for this study, the set up was designed into twopartitions: i) water heater and ii) membrane distillation. The effect of severaloperating parameters such as feed and distillate temperature, nitrateconcentration, and pH, on water flux and nitrate removal efficiency, wasinvestigated. The results showed that …

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Isolation And Identification Of Ureolytic Bacteria Isolated From Livestock Soil To Improve The Strength Of Cement Mortar, Hussein Khadhim, Saad Ammar, Shahlaa Ebrahim Aug 2026

Isolation And Identification Of Ureolytic Bacteria Isolated From Livestock Soil To Improve The Strength Of Cement Mortar, Hussein Khadhim, Saad Ammar, Shahlaa Ebrahim

Engineering and Technology Journal

The aim of the present study is to isolate and recognize calciumcarbonate-producing bacteria and to check these bacterial strains for use incement mortar to improve its properties such as strength and water absorption.Bacteria were isolated from livestock soils were examined for urease producingactivity, the possibility to precipitate calcite and its activity to improve thecompressive strength. Based on the results, four isolates were selected andidentified. They were characterized as B. atrophaeus, B. subtilis, B. aryabhattaiand B. amyloliquefaciens. Experimental work was performed to evaluate theeffect of bacterial concentration in term of optical density (OD) on thecompressive strength. Bacterial cement mortar samples revealed …

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Hydrogeologic Sustainability And Mitigation Of Shallow Groundwater Against High Saline And Chemical Pollutants, Najah Al Maimuri, Arkan Ali, Abdulhadi Al-Sa’Adi, Mohammed Abed Abed Aug 2026

Hydrogeologic Sustainability And Mitigation Of Shallow Groundwater Against High Saline And Chemical Pollutants, Najah Al Maimuri, Arkan Ali, Abdulhadi Al-Sa’Adi, Mohammed Abed Abed

Engineering and Technology Journal

A hydrogeologic study has been adopted to conceptualize the concepts of groundwater levels lowering in swamped area of Tyass, middle of Iraq. 2D dimensional groundwater model and, mitigation model has been used to mitigate the aquifer against high salinity and chemical pollutants by the mitigation theory of heterogeneous subsurface media, which depends upon physical and mathematical derivation, evaluation of chemical pollutants and total dissolved salts (TDS) of subsurface water before and after mitigation process. The water table level was lowered up to 2.43m at the center of a pumping well of abstraction discharge (400m3/day) obtained after 2755days in steady state. …

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Recycling Of Sewage Sludge Ash In Polymer Structures, Mohamad Alsaadi, Aseel Al-Zubaidi, Mukhallad Haider, Hasanain Hashim Hashim Aug 2026

Recycling Of Sewage Sludge Ash In Polymer Structures, Mohamad Alsaadi, Aseel Al-Zubaidi, Mukhallad Haider, Hasanain Hashim Hashim

Engineering and Technology Journal

In this study sewage sludge ash (SSA) particles were used as filler in the polyester resin to fabricate particulate composites with various filler contents of 0, 1, 2, 3, 4, 5, 6 and 7 wt%. The tensile, flexural, impact, hardness, chemical composition and scanning electron microscope tests wear done on the samples in accordance with ASTM standards. The results were improved at the particle content of 5 wt% for the tensile and flexural strength and then showed reducing trend with extra particle addition. Tensile and flexural modulus values of the particulate polyester composites significantly enhanced compared with the unfilled polyester …

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Design Of N-Bit Adder Without Applying Binary To Quaternary Conversion, Walaa Khalaf, Dhafer Zaghar, Kadhum Al-Majdi Aug 2026

Design Of N-Bit Adder Without Applying Binary To Quaternary Conversion, Walaa Khalaf, Dhafer Zaghar, Kadhum Al-Majdi

Engineering and Technology Journal

Microprocessor has been considered as most important part in ICs manufacturing and making progress since more than 50 years, so increasing microprocessor speed is paid attention in all technologies. ALU is known as the slowest part in microprocessor because of the ripple carry, nowadays microprocessor uses 8-uints as pipeline, each one has 8-bits for implementing 64-bit, working in this form has been captured the microprocessor development and limited its speed for all its computations. Parallel processing and high speed ICs always trying to increase this speed but unfortunately it remains limited. The contemporary solution for increasing microprocessors speed is the …

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Analysing Some Mechanical Properties Of Cinnamon Powder Reinforced With Polymeric Materials Used In Dental Application, Ahamed Alghabban, Reem Mohammed, Jumaah Mahmood Aug 2026

Analysing Some Mechanical Properties Of Cinnamon Powder Reinforced With Polymeric Materials Used In Dental Application, Ahamed Alghabban, Reem Mohammed, Jumaah Mahmood

Engineering and Technology Journal

In the dentures industry, materials must be chosen to have good mechanical properties in order to resist the conditions that may occur in the mouth. A study was conducted to assess tensile strength, elasticity coefficient, elongation, flexural strength, flexural modulus with impact properties of poly methyl methacrylate resin as matrix strengthened with cinnamon powder and also analysing these mechanical properties by using (OriginLab) software program. The samples of Poly Methyl methacrylate bio composites which containing 2%, 4%, 6%, and 8% weight fractions of cinnamon powder and an unfilled as control sample were fabricated using “hand lay up” method. The results …

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A Survey On Deceptive Detection Systems And Technologies, Harith Thannoon, Wissam Ali, Ivan Hashim Aug 2026

A Survey On Deceptive Detection Systems And Technologies, Harith Thannoon, Wissam Ali, Ivan Hashim

Engineering and Technology Journal

There are many types of indicators that have been proven to be useful clues for deceptive detection techniques, and most of this indicators that have been presented and proven by psychology to be signs of lying. This paper presents a survey of most popular deceptive detection systems. Many techniques for lie detection have been presented by researchers; most of them are reviewed in this paper. This study focus on the algorithms, which are presented in some pervious work, and how the database has been collected for each technique, furthermore explain the adopted cues for each deception detection technique. The accuracy …

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Design Of Double Notch Band Half-Elliptical Shape Reconfigurable Antenna For Uwb Applications, Haydar Al-Tamimi, Salah O. Aug 2026

Design Of Double Notch Band Half-Elliptical Shape Reconfigurable Antenna For Uwb Applications, Haydar Al-Tamimi, Salah O.

Engineering and Technology Journal

A compact ultra-wideband (UWB) reconfigurable antenna with dual band-notched properties is presented in this paper. The dual notch band half – elliptical reconfigurable antenna is fed by (50 Ω) microstrip feed lines and it is printed above an FR-4 substrates (32 × 32.6) mm2 dimensions. This dual band notched characteristic is accomplished by embedding two crossing U-shaped slot in the half-elliptical radiating patch of the proposed reconfigurable antenna. The modeling procedure and performance evaluation of the presented antenna was achieved by using the electromagnetic simulator software, (CST) Computer Simulation Technology. The measured bandwidth of the presented antenna for (VSWR < 2) spans 2.6 GHz to 12 GHz, which covers the entire UWB band of 3.1 GHz to 10.6 GHz, with a controlling dual notched band (VSWR > 2) …

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Performance Of Geopolymer Concrete Exposed To Freezing And Thawing Cycles, Mohammed Shamsa, Basil Al-Shathr, Tareq Al-Attar Aug 2026

Performance Of Geopolymer Concrete Exposed To Freezing And Thawing Cycles, Mohammed Shamsa, Basil Al-Shathr, Tareq Al-Attar

Engineering and Technology Journal

In this study, the effect of rapid freezing and thawing (ASTM C666 – procedure A) on three different types of Geopolymer concrete studied using three types of pozzolanic material: fly ash, metakaolin and ground granulated blast furnace slag (GGBFS). The Geopolymer concrete was prepared using 400 kg of the pozzolanic material with alkaline liquid prepared at 8 molar concentration with normal fine and coarse aggregates. The ratio of alkaline to fly ash and GGBFS was 1.5: 1 and for metakaolin was 2: 1 for workability and compressive strength requirements. Specimens (100 × 100 × 400) mm were exposed to 100, …

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Application Of Wheat Husk In Color Removal Of Textile Wastewater, Mohamed Mohammed, Anaam Sabri, Eman Taha Aug 2026

Application Of Wheat Husk In Color Removal Of Textile Wastewater, Mohamed Mohammed, Anaam Sabri, Eman Taha

Engineering and Technology Journal

Adsorption is the most efficient technique used to remove organic pollutants from wastewater. Dyes represent one of the pollutants that may remove by adsorption. The textile industry used dyes for colorization of fibers and always generates a considerable amount of colored wastewater. In present work, the removal of Malachite green (MG) dye pollutant from synthetic wastewater onto mesoporous Wheat husk (WH) was studied in batch adsorption systems. The characterization for the prepared wheat husk was studied by, scanning electron microscopy (SEM), Fourier transforms infrared (FTIR) spectroscopy. The batch experiments were carried out to measure the removal efficiency of MG as …

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Diclofenac Removal From Wastewater By Iraqi Pillared Clay, Faris Al Ani, Ghayda Al-Kindi, Noor Al-Bidri Aug 2026

Diclofenac Removal From Wastewater By Iraqi Pillared Clay, Faris Al Ani, Ghayda Al-Kindi, Noor Al-Bidri

Engineering and Technology Journal

This study deals with the removal of Pharmaceutical pollutants such as Diclofenac, which caused hazardous pollutant for human health, from aqueous solution. The aim of this study is an investigation to remove the diclofenac from synthesis wastewater by using of pillared clay that made from Iraqi clay (ALAnbar clay) as adsorbent by using both batch and packed bed reactor to study kinetic model. The experimental work in batch reactor using different parameter (diclofenac, pillared clay and pH) in four beakers for 3 hours in jar test instrument , from the result show pH is the important factor effect on the …

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Impact Of A Bright Nickel Interlayer On The Performance Of Solar Absorber Nano Coatings Deposited By Electroplating On Copper Substrate, Mohammed Kadihm, Khalid Sukkar, Ahmed Abbas Aug 2026

Impact Of A Bright Nickel Interlayer On The Performance Of Solar Absorber Nano Coatings Deposited By Electroplating On Copper Substrate, Mohammed Kadihm, Khalid Sukkar, Ahmed Abbas

Engineering and Technology Journal

In this, work, a layer of bright nickel was deposited on the copper substrate using electroplating technique watts bath, before copper nanoparticles (CuNP) Evaporation via physically vapor deposition. The improvement of the solar absorber using CuNP and CuNP, combined with bright nickel, was found to be well than CuNP singly. Bright nickel improved the thermal stability of the absorber. Also the other optical properties absorption, emissivity slight decrease from (93% to 87%0) in another hand thermal conductivity was evaluated using hot disk analyzer with a good improvement obtain by CuNP( 89%) deposited on copper substrate while it decreases with percentage18.8% …

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Cement Based Solidification/Stabilization Leaching Performances Of Selected Heavy Metal Ions Under Different Ph Extractions, Basim A. Hussain Hussain, Shahlaa Ebrahim, Abbas Sulaymon Aug 2026

Cement Based Solidification/Stabilization Leaching Performances Of Selected Heavy Metal Ions Under Different Ph Extractions, Basim A. Hussain Hussain, Shahlaa Ebrahim, Abbas Sulaymon

Engineering and Technology Journal

Liquid to solid partitioning as a function of pH leaching Procedure LSP EPA method 1313 was carried out to test the effectiveness , performance and efficiency of the cement-based solidification / stabilization (S/S) of heavy metals contaminated sand samples using Ordinary Portland Cement OPC type A . Two cement based mix designs ( 7 and 25 % ) have been applied to (S/S) sand contaminated samples with different heavy metal ions ( Pb , Cu , Cr , and Cd ) having the following concentrations ( 500 , 1500 and 3000 mg / kg ). Fixed water to cement ratio …

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Environmental Impact Assessment Of Halfaya Oilfield Project, Amin Thamir, Souzan Lafta, Faras Mohammed, Mahdi Hanon Hanon Aug 2026

Environmental Impact Assessment Of Halfaya Oilfield Project, Amin Thamir, Souzan Lafta, Faras Mohammed, Mahdi Hanon Hanon

Engineering and Technology Journal

Implement the necessary measures is necessary to limit the potential damages and risks resulting from oil and gas exploration activities to take the necessary precautions and arrangements to protect the land, air, waters and the groundwater basins from pollution and damage. The Environmental Impact Assessment (EIA) process is used to ensure that environmental and social sustainability considerations are included in decisions regarding the Projects considering the possible impacts associated with the proposed Centralized Waste Facility (CWF). The EIA was undertaken with consideration of the environmental standards and guidelines to determine the environmental impact assessment of Halfaya Oilfield; this facility is …

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Electrode Wear Evaluation In E.D.M Process, Ali Khleifa, Osama Sabbar Aug 2026

Electrode Wear Evaluation In E.D.M Process, Ali Khleifa, Osama Sabbar

Engineering and Technology Journal

Electric Discharge Machining (E.D.M) is a non-conventional machining process and has a larger extent of application in the manufacturing industry due to its accuracy. E.D.M simply uses an electrical spark between the workpiece and tool in the presence of medium dielectric to erode the workpiece in a controlled manner. This study investigates the enhance the various performance parameters measured in E.D.M process using Tagushi Technique. The main goals are to maximize the removal rate of material M.R.R and minimizing the wear rate of tool TWR.

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Textile Dye Removal By Activated Date Seeds, Seroor Khaleef, Huda Hamad Aug 2026

Textile Dye Removal By Activated Date Seeds, Seroor Khaleef, Huda Hamad

Engineering and Technology Journal

The objective of the study was to prepare activated carbon from date seeds (ADS) and use it as a medium for textile dye adsorption. Batch adsorption of reactive green dye showed that dye adsorption depends on the contact time, the dye concentration, and the pH equilibrium. Different concentrations of the prepared activated carbon were used with different dye concentrations and evaluated for dye removal efficiency. The maximum dye adsorption in this study was achieved after 270 min at a pH range of 5-9. In this study, the functional groups in the prepared ADS were identified using Fourier transform infrared (FTIR) …

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Framework For Solid Waste Management In Steel Fabrication, Luma Al-Kindi, Wadood Alghabban Aug 2026

Framework For Solid Waste Management In Steel Fabrication, Luma Al-Kindi, Wadood Alghabban

Engineering and Technology Journal

Solid Waste Management (SWM) is a term used to determine greatest energy-efficient and least-polluting ways to deal with the different components and items of community’s Solid Waste stream. The solid waste could be either in solid or liquid form. Solid waste could be defined as, ”Any material that is not required by the owner, fabricator or processor.” Solid Waste could be classified as Domestic waste, Industrial waste, Waste from oil plant, Electronic-waste, Construction waste, Agricultural waste, Food treating waste, Bio-medical waste, and Nuclear waste. Due to social and environmental significances, waste reduces, reuse, and recycle have become necessities in minimizing …

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Selecting The Potential Water Harvesting Sites Using Fuzzy Gis-Based Spatial Multi-Criteria Evaluation In Salah Al-Din Governorate, Iraq, Imzahim Abdulkareem, Hussein Karim, Nadia Aziz Aug 2026

Selecting The Potential Water Harvesting Sites Using Fuzzy Gis-Based Spatial Multi-Criteria Evaluation In Salah Al-Din Governorate, Iraq, Imzahim Abdulkareem, Hussein Karim, Nadia Aziz

Engineering and Technology Journal

Remote sensing and GIS-based techniques were used to select the potential sites for water harvesting in Salah Al-Din Governorate, northern Baghdad/ Iraq. Spatial Multi-Criteria Evaluation (MCE) was used where seven criteria layers have been evaluated to identify water-harvesting sites, such as slope, stream order, precipitation, potential evaporation rate, soil type, distance to roads and the Normalized Difference Vegetation Index (NDVI). This method helps in locating water-harvesting sites in suitable places as well as improves the management of water resources in the study area. Fuzzy logic modeling was used to standardize the criteria layers, and the Fuzzy Gamma overlay was used …

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Removal Of Reactive Red Dye (Cibacron Fn-R) From Synthetic Wastewater By Using Natural Substance, Safaa Al-Hussaini, Eman Mohammed, Abdul Hameed Al-Obaidy Aug 2026

Removal Of Reactive Red Dye (Cibacron Fn-R) From Synthetic Wastewater By Using Natural Substance, Safaa Al-Hussaini, Eman Mohammed, Abdul Hameed Al-Obaidy

Engineering and Technology Journal

Synthetic textile wastewater was simulated by using Cibacron reactive red dye FN-R. Pomegranate peels were used as adsorbents to remove the red dye by applying a continuous fixed bed column reactor system having a filter with a diameter of 30mm and a length of 110mm. The effect of different parameters on the removal efficiency was studied; pH levels (2, 4, 6, 8, 10, and 12), flow rate (27, 45, and 60 ml/min), initial dye concentration (10, 15, 20, and 25 mg/l), and the contact time (30, 60, 90, 120, 150, and 180 min). It was found that the optimum pH …

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Oil Removal From Oilfield Produced Water, North Rumaila By Combination Coagulationflocculation And Microfiltration Technique, Thamer Mohammed, Eman Awad, Thabit Ahmed Aug 2026

Oil Removal From Oilfield Produced Water, North Rumaila By Combination Coagulationflocculation And Microfiltration Technique, Thamer Mohammed, Eman Awad, Thabit Ahmed

Engineering and Technology Journal

The Southern Oil Company, which is operated in North Rumaila oilfield in Basrah/ Iraq, is one of the important companies which produced huge amounts of produced oilfield water. The aim of this study is to treat the produced water by hybrid methods: the process of coagulation-flocculation and microfiltration technique (ceramic membrane) to remove the oil content and improve the water quality to meet the allowable limit of reinjection into the reservoir. Poly-aluminum chloride (PAC), and Ferric Chloride (FeCl3.6H2O) coagulants were used separately and in combination with cationic polyelectrolyte (PE). After produced water was treated with different doses of coagulant, it …

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Diagnosis And Evaluation Of Defects Encountered In Newly Constructed Houses In Erbil City, Kurdistan, Iraq, Khalil Wali, Noori Ali Aug 2026

Diagnosis And Evaluation Of Defects Encountered In Newly Constructed Houses In Erbil City, Kurdistan, Iraq, Khalil Wali, Noori Ali

Engineering and Technology Journal

This study investigated the types and profile of defects facing newly constructed houses through conducting a survey and analyzing defect records of data observed for 652 houses out of 1000 houses newly constructed for Salahaddin University academic staff in Erbil City. The result of analysis revealed that the overall of 6758 defects identified with the mean average of 10 defects per house. The overall percentage of defected houses for each type of defects and the location of the defect ranged from 10% to 67%. The most defected components found in the doors and windows, which comes in rank 1 with …

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Optimal Location And Parameter Setting Of Statcom Device Based Pso For Iraqi Grid Voltage Profile Enhancement And Power Losses Minimizing, Rashid Al-Rubayi, Mohammed Eesee Aug 2026

Optimal Location And Parameter Setting Of Statcom Device Based Pso For Iraqi Grid Voltage Profile Enhancement And Power Losses Minimizing, Rashid Al-Rubayi, Mohammed Eesee

Engineering and Technology Journal

The main goal of this work is to enhance the Voltage stability by using optimum location and parameters setting of STATCOM device. The parameters are the magnitude of the output voltage ������ and the angle ������, these parameters are taken to control the device performance. The simulation results have been done by using power flow program solution by Newton-Raphson method (Matlab program / M-file) with Particle Swarm Optimization (PSO) technique, for power losses minimizing and improving voltage profile. Two systems have been implemented:- IEEE 5-bus test system and Iraqi (400 kV) National super Grid System 27-bus. The MATLAB programs are …

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Examining The Impact Of Different Thermosyphon Diameters And Working Fluids On Their Performance, Talib Farge, Sahar Al-Sakini, Aseel Ismael Aug 2026

Examining The Impact Of Different Thermosyphon Diameters And Working Fluids On Their Performance, Talib Farge, Sahar Al-Sakini, Aseel Ismael

Engineering and Technology Journal

This work was designed to examine the effect of various thermosyphon diameters and working fluids on the thermosyphon performance. A thermosyphon made from copper tubes with three different external diameters 7, 13 and 22mm with thickness of 1mm is used in this work. The length of evaporator and condenser were 120 and 300 mm respectively. Working fluids were water, acetone and Freon R11 working fluids are tested. The obtained results have shown that the temperature gradient was decreased when increasing the thermosyphon diameter. Also, the results showed that the Merit for water had the highest value than the other working …

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Investigation Of Corrosion Protection For Steel By Eco-Friendly Coating, Majid Abdulmajeed, Hiba Abdullah, Slafa Ibrahim, Ghaith Alsandooq Alsandooq Aug 2026

Investigation Of Corrosion Protection For Steel By Eco-Friendly Coating, Majid Abdulmajeed, Hiba Abdullah, Slafa Ibrahim, Ghaith Alsandooq Alsandooq

Engineering and Technology Journal

The coupling effect of coating and inhibition has been investigated in the present work. polypyrrole coating with adding coumarin was applied on carbon steel to protect it against corrosion. Electropolymerization process by cyclic voltammeter was carried out in 0.2M oxalic acid electrolyte containing 0.1M pyrrole monomer without and with 0.01M coumarin as an eco-friendly inhibitor. SEM/EDS, AFM and FTIR techniques were used to identify the coating film. Corrosion test using Potentiostat was achieved for uncoated and coated specimens and the results indicated that the corrosion potentials became nobler compared with uncoated specimen, this means that the anodic sites were covered …

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Effect Of Using Local Insulation Materials On The Indoor Temperature Of Residential Buildings At Iraq, Abdulrahman Mahmood, Haqi Qatta, Nassr Hussein Aug 2026

Effect Of Using Local Insulation Materials On The Indoor Temperature Of Residential Buildings At Iraq, Abdulrahman Mahmood, Haqi Qatta, Nassr Hussein

Engineering and Technology Journal

In this research, a thermal insulation between the two layers of a wall has been used for the residence buildings to reduce the heat transmitted across the walls and thus reducing the power consumption for cooling load. A MATLAB program was used to obtain the thermal response for various types of walls from the energy sources (solar radiation and ambient temperature) in summer season in Baghdad, Iraq. Local materials used in this study as thermal insulators between the two layers of walls are: local cane mat, wood sawdust and cork grains. Modeling tests were carried out on June, July and …

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The Effect Of Using Multi Types Of Mineral Admixtures On Some Properties Of Lightweight Self-Compacting Concrete, Waleed Razaq, Qais Freih, Shubbar Al Obaidey Aug 2026

The Effect Of Using Multi Types Of Mineral Admixtures On Some Properties Of Lightweight Self-Compacting Concrete, Waleed Razaq, Qais Freih, Shubbar Al Obaidey

Engineering and Technology Journal

The main objective of this research was studying the effects of using multi types of mineral admixtures as high reactivity Attapulgite (HRA), high reactivity Metakaolin (HRM) and fly ash (FA) on some rheological and mechanical properties of lightweight self - Compacting concrete (LWSCC), when were used as a partially replacement by weight of cement. The results showed that using of (HRA) and (HRM) increased the superplasticizer (SP) dosage, while (FA) with spherical particles reduced the (SP) dosage relative to reference mix (Ref. mix) to get the same slump flow target value. The optimum content for (HRA) used in this study …

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Study The Catalytic Oxidation Of Phenol In Both Baskets Stirred Tank And Packed Bed Reactors, Ghayda Al-Kindi, Faris Al Ani Aug 2026

Study The Catalytic Oxidation Of Phenol In Both Baskets Stirred Tank And Packed Bed Reactors, Ghayda Al-Kindi, Faris Al Ani

Engineering and Technology Journal

The aim of this study, using five types of AL-Fe pillared Iraqi clay to study catalyst wet air oxidation to oxide phenol from synthesis’s wastewater and study the limitation criteria in control of operating conditions. Two types of reactor (Batch and packed bed) used to study operation conditions and the best conditions result from Batch reactor was pressure 3.2Mpa, temperature 130⁰C, phenol concentration 500mg/l and pH 3.9, for packed bed reactor with AL-Fe pillared clays of Anbar-Erbil, Mosul, due to high phenol removal, in up-flow mode. The results show that phenol removal is 98-97.8-95% for Erbil-MosulAnbar respectively, when the LHSV …

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Effect Of Operating Parameters On Degradation Of Eriochrome Black T Dye, Walaa Sabre, Sheymaa Mohammed, Ahmed Ali Aug 2026

Effect Of Operating Parameters On Degradation Of Eriochrome Black T Dye, Walaa Sabre, Sheymaa Mohammed, Ahmed Ali

Engineering and Technology Journal

Of the effect, the process parameters on photocatalytic degradation Eriochrome black T( EBT) dye has been degraded in a batch reactor under UV light in heterogeneous slurry utilizing various concentrations of two semiconductors commercial catalysts (Titanium dioxide and Zinc Oxide). The parameter has been studied (catalyst type, catalyst concentration, pH of dye solution and initial dye concentration). The results showed that the best dose of TiO2 and ZnO are 1.5 and 1 g/l respectively and the optimum pH (6 and 11) using TiO2 and ZnO respectively. Moreover, the comparative assessment of the photocatalytic efficiency was made for different photocatalytic powder. …

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