Browsing Environmental Science by Title

3D printed feed spacers based on triply periodic minimal surfaces for flux enhancement and biofouling mitigation in RO and UF

Sreedhar, Nurshaun; Thomas, Navya; Ketan, Oraib Al; Rowshan, Reza; ETAL. (Elsevier, 2018-01)

In this proof of concept study, 3D printed feed spacers with complex geometries based on triply periodic minimal surfaces (TPMS) were designed and tested in reverse osmosis (RO) and ultrafiltration (UF) processes. The ...

3D printed photocatalytic feed spacers functionalized with β-FeOOH nanorods inducing pollutant degradation and membrane cleaning capabilities in water treatment

Sreedhar, Nurshaun; Kumar, Mahendra; Jitan, Samar Al; Thomas, Navya; ETAL. (Elsevier, 2022-01)

A novel 3D printed photocatalytic feed spacer was developed for use in membrane-based water and wastewater filtration systems. The spacer fulfilled two new functions; degradation of membrane-permeating pollutants in the ...

3D printed spacers based on TPMS architectures for scaling control in membrane distillation

Thomas, Navya; Sreedhar, Nurshaun; Ketan, Oraib Al-; Rowshan, Reza; ETAL. (Elsevier, 2019-07)

In this study, the performance of novel 3D printed spacers was investigated for scaling control in direct contact membrane distillation (DCMD). The spacers, designed as triply periodic minimal surfaces (TPMS), were tested ...

3D printed spacers for organic fouling mitigation in membrane distillation

Castillo, Erik Hugo Cabrera; Thomas, Navya; Ketan, Oraib Al; Rowshan, Reza; Al-Rub, Rashid K Abu; ETAL. (Elsevier, 2019-08)

3D printing offers the flexibility to achieve favorable spacer geometrical modification. The role of 3D printed spacers for organic fouling mitigation in direct contact membrane distillation (DCMD) is evaluated. Compared ...

3D printed triply periodic minimal surfaces as spacers for enhanced heat and mass transfer in membrane distillation

Thomas, Navya; Sreedhar, Nurshaun; Ketan, Oraib Al; Rowshan, Reza; ETAL. (Elsevier, 2018-10)

3D printing is utilized to create different feed channel spacer designs aimed at enhancing the spacer performance specifically for membrane distillation (MD) application. The novelty is the use of mathematically developed ...

A Study on the Space Layout and Configuration of Shopping Malls in Relation to Pedestrian Movement Behavior - Case of UAE

Meziani, Rim; Hussien, Hussien Ali (SPSD Press, 2017)

The research aims to understand the relationship between the popularity and attractiveness of commercial buildings, shopping malls and any relationship with visitor satisfaction. This would assist in designing new malls ...

Acid mediated networked cellulose: preparation and characterization

Hashaikeh, Raed; Abushammala, Hatem (Elsevier, 2011)

High-yield networked cellulose (NC) material was prepared by sulfuric acid dissolution of microcrystalline cellulose (MCC) and regeneration in ethanol. The dissolution was studied by varying treatment temperature and time ...

Activation of PVDF membranes through facile hydroxylation of the polymeric dope

Gharabli, Samer Al; Mavukkandy, Musthafa O; Kujawa, Joanna; Nunes, Suzana P; Arafat, Hassan A (Cambridge University Press, 2017-11)

A method comprising a two-step alkali/acid treatment of poly (vinylidene fluoride) (PVDF) polymer is developed for the fabrication of flat-sheet PVDF membranes functionalized with labile hydroxyl groups. This method involves ...

Air quality assessment in an industrial area by using environmental indicators

Triantafyllou, AG; Paliatsos, AG; Voutsinas, M; Zuburtikudis, Ioannis (2002-10)

In the present work an assessment of the air quality in the Ptolemais œ Kozani industrial area (Northwestern Greece) is attempted by the use of environmental indicators. Data about the air pollutant concentrations measured ...

An analysis of atmospheric pollutants concentration in urban area in Greece

Triantafyllou, AG; Patra, A; Zuburtikudis, Ioannis; ETAL. (2001-07)

In this study continuous concentration measurements of atmospheric pollutants for a 3 year period are analyzed. These measurements have been carried out in the central area of Kozani (down town Kozani), the largest city ...

Antiscaling 3D printed feed spacers via facile nanoparticle coating for membrane distillation

Thomas, Navya; Kumar, Mahendra; Palmisano, Giovanni; Rub, Rashid K Abu Al; Alnuaimi, Reham Y (Elsevier, 2021-02)

Surface modification of feed spacers rather than membranes may hold more merit as an antiscaling strategy in membrane distillation (MD), as it avoids compromising the functionality of MD membrane. In this work, an antiscaling ...

Assessing the influence of Corporate Governance, Ownership Concentration and Bank Size on the Firm’s Value and Bank’s Performance: Evidence from Pakistan

I, Khan; Ahmad, Waqar; SAA, Shah (2020)

This empirical study examines the impact of corporate governance, ownership structure and bank size on the bank’s performance and firm’s value of the banking sector in Pakistan. The data is extracted for 17 commercial banks ...

Assessment and rationalization of water quality monitoring network: a multivariate statistical approach to the Kabbini River (India)

Mavukkandy, Musthafa O; Karmakar, Subhankar; Harikumar, PS (Springer Berlin Heidelberg, 2014-09)

The establishment of an efficient surface water quality monitoring (WQM) network is a critical component in the assessment, restoration and protection of river water quality. A periodic evaluation of monitoring network is ...