تصفح Theme 3: Geotechnical, Environmental, and Geo-environmental, Engineering حسب العنوان
السجلات المعروضة 10 -- 21 من 21
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Impact of Draw Solution Concentration on Forward Osmosis Process: A Simulation Study
( Qatar Univesrity Press , 2020 , Conference Paper)In this study, a simulation model was used to evaluate the performance of forward osmosis process. A solution of low salinity was used as the feed solution in forward osmosis to dilute saline solution (i.e. draw solution) ... -
Impact of Ionic Strength on Colloid Retention in a Porous Media: A Micromodel Study
( Qatar Univesrity Press , 2020 , Conference Paper)Release of deposited colloids in the soil porous media during two-phase flow poses potential health hazard due to the facilitated transport of contaminants towards groundwater reservoirs. Considerable uncertainties exist ... -
Influence of Aspect Ratio on the Bearing Capacity and Correlated Modulus of Subgrade Reaction for Shallow Foundations on Dense Sand
( Qatar Univesrity Press , 2020 , Conference Paper)One of the most fundamental problems in the field of geotechnical engineering is the prediction of bearing capacity and settlement of shallow foundations on cohesion-less soil subjected to vertical central loading. The ... -
Influence of Fines on the Compressibility of Surface Sands in Kuwait
( Qatar Univesrity Press , 2020 , Conference Paper)Influence of fines on the strength and compressibility of compacted fill soil is very important in determining its behavior under applied loads. In Kuwait, fill soil is usually backfilled from excavated surface soils ... -
Influence of Water Table Fluctuation on Natural Source Zone Depletion in Hydrocarbon Contaminated Subsurface Environments
( Qatar Univesrity Press , 2020 , Conference Paper)Most of the prediction theories regarding dissolution of organic contaminants in the subsurface systems have been proposed based on the static water conditions and the influence of water fluctuations on mass removal requires ... -
Investigation of the Effect of the Force-Frequency on the Behaviour of a New Viscous Damper for Railway Applications
( Qatar Univesrity Press , 2020 , Conference Paper)The primary purpose of this work is to experimentally investigate the damping coefficient of a viscous damper, intended to be used in railway applications to reduce noise emission. The viscous shock absorber used in this ... -
Predicted and Back-calculated Coefficients of Permeability of Randomly Fractured Rock Mass: A Case Study
( Qatar Univesrity Press , 2020 , Conference Paper)This paper presents the discrepancy between the coefficients of permeability measured for randomly fractured limestone using field falling-head tests and that back-calculated for the same rock mass based on the actual ... -
Resource Recovery from Waste, Water and Wastewaters with Membrane Technologies
( Qatar Univesrity Press , 2020 , Conference Paper)In this study, critical elements (Boron (B) and Rare Earth Elements (REE)) recovery is studied with membrane technologies. Concentrated boron can be recovered by using different technologies. Membrane technologies such as ... -
The Use of Measuring While Drilling and Wireline Logging to Identify the Geological Strata in Qatar
( Qatar Univesrity Press , 2020 , Conference Paper)In the field of engineering and construction in the Middle East, it is a common practice to economize a geotechnical investigation using a conventional scope, based on the lowest price. This tends to compromise the project ... -
Treatment of Wastewater Using Reverse Osmosis for Irrigation Purposes
( Qatar Univesrity Press , 2020 , Conference Paper)This work investigates the performance of reverse osmosis (RO) for the reclamation of treated sewage effluent (TSE) to be used as irrigation water for food crops. The feed water used in this study was a real sample of ... -
Use of 3D Images to Evaluate Formation Damage Induced by Montmorillonite Fines in Porous Media Systems
( Qatar Univesrity Press , 2020 , Conference Paper)Formation damage costs oil and gas industry $140 billion/year in lost productivity, this is a key challenge to Qatar, the world's largest LNG exporter. During production from a well, multiphase flow foster drag forces to ... -
Utilizing Steel Slag in the Removal of Suspended Solids from Dewatered Construction Water
( Qatar Univesrity Press , 2020 , Conference Paper)Construction dewatering is an operation used to remove shallow groundwater that infiltrates construction sites. After recovering this water from the construction sites, the water is either discharged to the sea, injected ...