A5003293676- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Water Treatment and Disinfection
- Wastewater Treatment and Nitrogen Removal
- Solar-Powered Water Purification Methods
- Wastewater Treatment and Reuse
- Microplastics and Plastic Pollution
- Electrospun Nanofibers in Biomedical Applications
- Urban Stormwater Management Solutions
- Microbial Community Ecology and Physiology
- Fuel Cells and Related Materials
- Analytical Chemistry and Sensors
- Water Systems and Optimization
- Advanced Sensor and Energy Harvesting Materials
- Polymer Surface Interaction Studies
- Fluid Dynamics and Mixing
- Graphene and Nanomaterials Applications
- Marine Biology and Environmental Chemistry
- Bacterial biofilms and quorum sensing
- Water Quality Monitoring Technologies
- Health disparities and outcomes
- Microbial Fuel Cells and Bioremediation
- Fecal contamination and water quality
- 3D Printing in Biomedical Research
- Surface Modification and Superhydrophobicity
King Abdullah University of Science and Technology
2016-2025
University of Alberta
2021
Membrane systems are commonly used in the water industry to produce potable and for advanced wastewater treatment. One of major drawbacks membrane is biofilm formation (biofouling), which results an unacceptable decline performance. Three novel situ biofouling characterization techniques were assessed: (i) optical coherence tomography (OCT), (ii) planar optodes, (iii) nuclear magnetic resonance (NMR). The first two assessed using a grown on surface nanofiltration (NF) membranes transparent...
Abstract The use of traditional drinking water microbial quality monitoring methods, including heterotrophic plate counts (HPCs) and total coliform counts, are not only laborious time-consuming but also do readily allow identification risk areas in the network. Furthermore, if concern identified, mitigation measures taken, it takes days before effectiveness these is known. This study identified flow cytometry (FCM) as an online sensor technology for bacterial distribution We monitored cell...
The shortage of fresh water resources has made the desalination seawater a widely adopted technology. Seawater reverse osmosis (SWRO) is most commonly used method for desalination. SWRO process energy-intensive, and energy in spent on pressurizing to overcome osmotic barrier producing water. pressure needed depends salinity seawater, its temperature, membrane surface properties. Membrane compaction occurs due hydraulic application long-term operations operating temperature fluctuations...
Chemical cleaning is routinely performed in reverse osmosis (RO) plants for the regeneration of RO membranes that suffer from biofouling problems. The potential urea as a chaotropic agent to enhance solubilization biofilm proteins has been reported briefly literature. In this paper efficiency membrane systems compared conventionally applied acid/alkali treatment. Preliminary assessment confirmed did not damage polyamide and increased with increasing concentrations temperature. Accelerated...
Surface coating of membranes may be a promising option to control biofilm development and biofouling impact on membrane performance spiral-wound reverse osmosis (RO) systems.The objective this study was investigate the an amphiphilic copolymer formation control.The composed both hydrophilic hydrophobic monomers hydroxyethyl methacrylate (HEMA) perfluorodecyl acrylate (PFA), respectively.Commercial RO were coated with HEMA-PFA film.Long short term studies uncoated feed spacer performed using...
A critical problem in seawater reverse osmosis (RO) filtration processes is biofilm accumulation, which reduces system performance and increases energy requirements. As a result, membrane systems need to be periodically cleaned by combining chemical physical protocols. Nutrient limitation the feed water strategy control formation, lengthening stable performance. However, cleanability of biofilms developed under various nutrient conditions not well understood. This study analyzes removal...
Biofouling is one of the major factors causing decline in membrane performance reverse osmosis (RO) plants, and perhaps biggest hurdle technology. Chemical cleaning periodically carried out at RO installations aiming to restore performance. Typical agents used water treatment industry include sodium hydroxide (NaOH) hydrochloric acid (HCl) sequence. Rapid biofilm regrowth related after conventional chemical a routinely observed phenomenon due inefficient removal biomass from modules. Since...