A Study of Forward Osmosis Using Various Drawing Agent

Adil A. Al-Hemiri; Adil O. Sharil; Mustrfa Hussein

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Publication Date

Wed Sep 30 2009

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Volume

10

Issue Number

3

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A Study of Forward Osmosis Using Various Drawing Agent

Forward Osmosis Draw solution

Desalination

Adil A. Al-Hemiri

Adil O. Sharil

Mustrfa Hussein

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This research was aimed to study the osmotic efficiency of the draw solutions and the factors affecting the performance of forward osmosis process : The draw solutions used were magnesium sulfate hydrate (MgSO₄.7H₂O) pojtassium chloride (KCL), calcium chloride (CaCl₂) and ammonium bicarbonate (NH₄HCO₃). It was found that water flux increases with increasing draw solution concentration, and feed solution flow rate and decreases with increasing draw solution flow rate and feed solution concentration. And also found that the efficiency of the draw solutions is in the following order:

CaCl₂> KCI > NH₄HCO₃> MgSO₄.7H₂O

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Publication Date

Thu Aug 30 2018

Journal Name

Journal Of Engineering

Monitoring Land Cover Change Using Remote Sensing and GIS Techniques: a Case Study of Al-Dalmaj Marsh, Iraq

Marsh of Iraq

Change detection

Land cover

NDVI

Landsat image

Marwah Moojid

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Al-Dalmaj marsh and the near surrounding area is a very promising area for energy resources, tourism, agricultural and industrial activities. Over the past century, the Al-Dalmaje marsh and near surroundings area endrous from a number of changes. The current study highlights the spatial and temporal changes detection in land cover for Al-Dalmaj marsh and near surroundings area using different analyses methods the supervised maximum likelihood classification method, the Normalized Difference Vegetation Index (NDVI), Geographic Information Systems(GIS), and Remote Sensing (RS). Techniques spectral indices were used in this study to determine the change of wetlands and drylands area and of other land classes, th

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(15)

Publication Date

Tue Aug 19 2025

Journal Name

Scientific Reports

Predictive modeling of asthma drug properties using machine learning and topological indices in a MATLAB based QSPR study

Jalal Hatem Hussein

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(2)

(1)

Publication Date

Wed Nov 27 2024

Journal Name

International Journal Of Integrated Engineering

Noise Modeling and Removal from Electrocardiogram Signals: A Study Using Wavelet Transform with Graphical User Interface

Noor

Alaa

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(1)

Publication Date

Wed Nov 27 2024

Journal Name

International Journal Of Integrated Engineering

Noise Modeling and Removal from Electrocardiogram Signals: A Study Using Wavelet Transform with Graphical User Interface

Noor

A.

Alaa

Sawal

Siti

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The electrocardiogram (ECG) is the recording of the electrical potential of the heart versus time. The analysis of ECG signals has been widely used in cardiac pathology to detect heart disease. The ECGs are non-stationary signals which are often contaminated by different types of noises from different sources. In this study, simulated noise models were proposed for the power-line interference (PLI), electromyogram (EMG) noise, base line wander (BW), white Gaussian noise (WGN) and composite noise. For suppressing noises and extracting the efficient morphology of an ECG signal, various processing techniques have been recently proposed. In this paper, wavelet transform (WT) is performed for noisy ECG signals. The graphical user interface (GUI)

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(1)

Publication Date

Sun Jun 23 2019

Journal Name

American Rock Mechanics Association

Using an Analytical Model to Predict Collapse Volume During Drilling: A Case Study from Southern Iraq

reservoir geomechanics

strength

Rock mechanics

borehole collapse

Reservoir Characterization

Upstream Oil & Gas

pore pressure

Wellbore Design

horizontal stress

Drilling

Ahmed K.

Asmaa

Usama

Ralph E.

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Zubair Formation is one of the richest petroleum systems in Southern Iraq. This formation is composed mainly of sandstones interbedded with shale sequences, with minor streaks of limestone and siltstone. Borehole collapse is one of the most critical challenges that continuously appear in drilling and production operations. Problems associated with borehole collapse, such as tight hole while tripping, stuck pipe and logging tools, hole enlargement, poor log quality, and poor primary cement jobs, are the cause of the majority of the nonproductive time (NPT) in the Zubair reservoir developments. Several studies released models predicting the onset of borehole collapse and the amount of enlargement of the wellbore cross-section. However, assump

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Publication Date

Sat Mar 21 2026

Journal Name

Bulletin Of Engineering Geology And The Environment

Geotechnical heterogeneity assessment using MASW and ERT: a case study from Al Maktoum airport, Dubai, UAE

Shear wave velocity (Vs)

2D MASW

Electrical resistivity tomography

Geotechnical parameters

Bedrock discontinuities

Al Maktoum Airport

Ahmed J. R.

Khaled S.

Mohammed H.

Osamah S.

Bing

Rana

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(1)

Publication Date

Mon Oct 28 2024

Journal Name

Deep Underground Science And Engineering

Ground vibration isolation using mass scatters: A comparative study with trench barriers and wave‐impeding blocks

Mohannad

Majeed R.

Hayder A.

Mahdi

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Abstract<p>Traffic‐induced ground vibrations cause significant problems for residents and nearby structures. Reducing the effect of these vibrations on the neighboring environment is a key challenge, particularly in urban areas. This study presents both numerical and experimental investigations of the performance of mass scatters for screening ground vibrations. A three‐dimensional numerical model is validated and extended to conduct a comparative study on the efficiency of three geotechnical methods of isolation. These methods include trench barriers, wave‐impeding blocks (WIBs), and mass scatters. The results showed that mass scatters represent an efficient way of scattering ground vi</p> ... Show More

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(4)

(2)

Publication Date

Tue Jan 01 2019

Journal Name

The 53rd U.s. Rock Mechanics/geomechanics Symposium

Using an analytical model to predict collapse volume during drilling: A case study from southern Iraq

A.K.

uSAMA

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(8)

Publication Date

Mon Jan 01 2024

Journal Name

Lecture Notes In Electrical Engineering

A Study of the Influence of Steel Brushes in Rail Surface Magnetic Flux Leakage Detection Using Finite Elements Simulation

Gong

Muhammad Firdaus

Mimi Faisyalini

Ghassan Nihad

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View Publication

Publication Date

Sun Mar 01 2015

Journal Name

Baghdad Science Journal

A study of adsorption isotherms for the removal of herbicide Atlantis WG from aqueous solutions by using Bentonite clay

: Adsorption isotherms

kinetic

Atlantis WG [Mesosulfuron-methyl (3% W/W)

lodosulfuron-methyl sodium (0.6% W/W)

Mefenpyr-diethyl (9% W/W)]. Bentonite

Muna S.

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The subject of this research involves studying adsorption to removal herbicide Atlantis WG from aqueous solutions by bentonite clay. The equilibrium concentration have been determined spectra photometry by using UV-Vis spectrophotometer. The experimental equilibrium sorption data were analyzed by two widely, Langmuir and Freundlish isotherm models. The Langmuir model gave a better fit than Freundlich model The adsorption amount of (Atlantis WG) increased when the temperature and pH decreased. The thermodynamic parameters like ?G, ?H, and ?S have been calculated from the effect of temperature on adsorption process, is exothermic. The kinetic of adsorption process was studied depending on Lagergren ,Morris ? Weber and Rauschenberg equati

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