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Browsing Department of Civil and Environmental Engineering by Issue Date

Browsing Department of Civil and Environmental Engineering by Issue Date

Now showing items 1-20 of 484

Mobility and availability of copper in agricultural soils irrigated from water treated with copper sulfate algaecide

Salam; El-Fadel, M (Springer, 2008)

In this paper, downward movement and availability of copper in soils irrigated with CuSO4 algaecide treated water were examined using column leaching experiments. Two simulations considering 1 and 10 years irrigation period ...
Effect of Butylated Hydroxytoluene (BHT) on the aerobic biodegradation of a model vegetable oil in aquatic media

Salam, Darine.A; Suidan, M.T; Venosa, A.D (American Chemical Society, 2012)

Antioxidants added to vegetable oils to prevent lipid oxidation significantly affect their biodegradation in impacted aquatic environments. In this study, the effect of butylated-hydroxytoluene (BHT) on the biodegradation ...
Assessment of aquatic toxicity and oxygen depletion during aerobic biodegradation of vegetable oil: Effect of oil loading and mixing regime

Salam, Darine.A; Naik, N.; Suidan, M.T; Venosa, A.D (American Chemical Society, 2012)

The potential ecological impacts of aerobic biodegradation of vegetable oils on contaminated water columns was investigated in the laboratory at different oil loadings (100, 333, and 1,000 gal acre -1) and mixing regimes ...
Vapor-induced transfer of bacteria in the absence of mechanical disturbances

Ayoub, Georges M.; Dahdah, Liza; Alameddine, Ibrahim M.; Malaeb, Lilian N. (Elsevier, 2014)

Transfer of bacteria through water vapor generated at moderate temperatures (30-50 degrees C) in passive solar stills, has scarcely been reported. The objective of this research was to investigate whether bacteria in highly ...
Car ownership motivations among undergraduate students in China, Indonesia, Japan, Lebanon, Netherlands, Taiwan, and USA

Belgiawan, Prawira Fajarindra; Schmöcker, Jan Dirk; Abou-Zeid, Maya; Walker, Joan L.; Lee, Tzu-Chang; Ettema, Dick F.; Fujii, Satoshi (Kluwer Academic Publishers, 2014)

“Peak car” and related discussions suggest that especially younger people (age cohort until 30) have less desire to drive and purchase cars. This might though only be true for a limited range of developed countries. This ...
Economic feasibility of a solar still desalination system with enhanced productivity

Ayoub, Georges M.; Malaeb, Lilian N. (2014)

Solar still desalination systems offer sustainable tools for fresh water production. However, their widespread application is often hindered by their relatively low production rates compared to other desalination methods. ...
Updated normalized load-settlement model for full-scale footings on granular soils

Najjar, Shadi S.; Shammas, Elie A.; Saad, Michel (2014)

The design of spread footings on granular soils is generally governed by serviceability requirements. Recent studies have utilized databases of load tests to investigate the use of normalized load-settlement curves to model ...
Reliability functions for buried submarine pipelines in clay subjected to upheaval buckling

Valle-Molina, Celestino; Alamilla, Jorge Luis; Sánchez-Moreno, Jorge; Najjar, Shadi S.; López-Acosta, Norma Patricia (Elsevier Ltd, 2014)

This paper presents the reliability analyses for studying and quantifying the variation of the reliability index (β) with the main parameters involved during the upheaval buckling of submarine buried pipes caused by high ...
Social and economic sustainability of urban systems: Comparative analysis of metropolitan statistical areas in Ohio, USA

González-Mejía, Alejandra M.; Eason, Tarsha N.; Cabezas, Heriberto; Suidan, Makram T. (Springer-Verlag Tokyo, 2014)

The development of a comprehensive sustainability analysis tool for evaluating regional urban systems would present researchers, planners, and policy makers with a powerful tool to study and manage systems, with the goal ...
GIS-based assessment for the development of a groundwater quality index towards sustainable aquifer management

El-Fadel, Mutasem E.; Tomaszkiewicz, Marlene A.; Adra, Y.; Sadek, Salah M.; Abou Najm, Majdi R. (Kluwer Academic Publishers, 2014)

This study aims at developing Groundwater Quality Indices (GQIs) that constitute a reliable tool in defining aquifer vulnerability. For this purpose, water quality sampling campaigns were conducted on 60 groundwater wells ...
Hydrology of the Jordan River Basin: A GIS-Based System to Better Guide Water Resources Management and Decision Making

Comair, Georges Fadi; McKinney, Daene C.; Maidment, D. R.; Espinoza-Dávalos, Gonzalo E.; Sangiredy, Harish; Fayad, Abbas; Salas, Fernando R. (2014)

A new method of participatory decision support that can be used in transboundary basins is presented. The framework of this method relies first on the creation of a transboundary geographic information system database to ...
Visible-light-induced photodegradation of gas phase acetonitrile using aerosol-made transition metal (V, Cr, Fe, Co, Mn, Mo, Ni, Cu, Y, Ce, and Zr) doped TiO2

Inturi, Siva Nagi Reddy; Thirupathi, Boningari; Suidan, Makram T.; Smirniotis, Panagiotis G. (Elsevier B.V., 2014)

A series of semiconductor photocatalysts based on transition metals (M'=V, Cr, Fe, Co, Mn, Mo, Ni, Cu, Y, Ce, and Zr) incorporated TiO2 (Ti/M'=20 atomic ratio) materials have been synthesized by adopting a one-step liquid ...
Nondestructive quantification of macropore volume using shear-thinning fluid

Stewart, Ryan D.; Abou Najm, Majdi R.; Rupp, David E.; Selker, John S. (Soil Science Society of America, 2014)

Understanding and quantifying the role of preferential pathways, such as soil cracks, on flow in porous media requires accurate estimation of their volume and connectivity. Current estimation methods either are based on ...
Development of a groundwater quality index for seawater intrusion in coastal aquifers

Tomaszkiewicz, Marlene A.; Abou Najm, Majdi R.; El-Fadel, Mutasem E. (Elsevier BV, 2014)

Coastal aquifers are increasingly threatened by seawater intrusion due to increased urbanization, groundwater exploitation, and global sea-level rise. Pattern diagrams, which constitute the outcome of several hydro-geochemical ...
Electricity generation and microbial community structure of air-cathode microbial fuel cells powered with the organic fraction of municipal solid waste and inoculated with different seeds

El-Chakhtoura, Joline; El-Fadel, Mutasem E.; Rao, Hari Ananda; Li, Dong; Ghanimeh, Sophia A.; Saikaly, Pascal E. (Elsevier Ltd, 2014)

The organic fraction of municipal solid waste (OFMSW), normally exceeding 60% of the waste stream in developing countries, could constitute a valuable source of feed for microbial fuel cells (MFCs). This study tested the ...
Methodology for relating accelerated trafficking to field trafficking for pavement evaluation

Kumar, Tanmay Naveen; Chehab, Ghassan R. (2014)

Over the years, numerous Accelerated Pavement Testing (APT) devices have been developed to facilitate quick evaluation of the performance and service life of pavements, materials, and related products under various loading ...
Effectiveness of the earth tube heat exchanger system coupled to a space model in achieving thermal comfort in rural areas

Yassine, Bilal; Ghali, Kamel Abou; Ghaddar, Nesreen K.; Chehab, Ghassan R.; Srour, Issam M. (2014)

The aim of this work is to investigate by modelling the possibility of reducing the operational energy of a typical house without negatively affecting its embodied energy. This is done through consideration of different ...
Flame aerosol synthesized Cr incorporated TiO2 for visible light photodegradation of gas phase acetonitrile

Inturi, Siva Nagi Reddy; Thirupathi, Boningari; Suidan, Makram T.; Smirniotis, Panagiotis G. (2014)

A series of Cr-TiO2 nanoparticles with different atomic ratios of Ti to Cr have been synthesized by adopting a one-step flame aerosol synthesis technique. The photocatalytic activity of flame aerosol made TiO2 loaded with ...
A comparative examination of MBR and SBR performance for the treatment of high-strength landfill leachate

El-Fadel, Mutasem E.; Hashisho, Jihan (Taylor and Francis Inc., 2014)

The management of landfill leachate is challenging, with relatively limited work targeting high-strength leachate. In this study, the performance of the membrane bioreactor (MBR) and sequencing batch reactor (SBR) technologies ...
Coagulation of highly turbid suspensions using magnesium hydroxide: Effects of slow mixing conditions

Ayoub, Georges M.; BinAhmed, Sara W.; Al-Hindi, Mahmoud; Azizi, F. (Springer Verlag, 2014)

Laboratory experiments were carried out to study the effects of slow mixing conditions on magnesium hydroxide floc size and strength and to determine the turbidity and total suspended solid (TSS) removal efficiencies during ...

Now showing items 1-20 of 484

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Browsing Department of Civil and Environmental Engineering by Issue Date

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