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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Understanding The Impact Of Microplastic Contamination On Soil Quality And Eco-Toxicological Risks In Horticulture: A Comprehensive Review, N. P. Gayathri, Geena Prasad, Vaishna Prabhakaran, Vishnu Priya
Understanding The Impact Of Microplastic Contamination On Soil Quality And Eco-Toxicological Risks In Horticulture: A Comprehensive Review, N. P. Gayathri, Geena Prasad, Vaishna Prabhakaran, Vishnu Priya
Research outputs 2022 to 2026
The horticulture sector, essential for global food production, confronts significant challenges with prevalent pollutants, mainly microplastics. The presence of microplastics in the food chain has induced physiological stress and a multifactorial food safety concern. The complexity of the problem, arising from intricate interactions among microplastics, organisms, and ecosystems, poses a substantial challenge to food safety, necessitating an immediate strategic perspective due to the associated risks to human health and eco-toxicology. Significant knowledge gaps persist regarding their impact on terrestrial ecosystems, especially in horticulture. This study addresses the urgent need to comprehend the implications of microplastics on soil health, eco-toxicological risks, …
Application Of Naoh Modified Micro-Polyethylene As Storage Material For H2, Tawanda Matamba, Hussein R. Abid, Masoumeh Zargar, Alireza Keshavarz, Stefan Iglauer
Application Of Naoh Modified Micro-Polyethylene As Storage Material For H2, Tawanda Matamba, Hussein R. Abid, Masoumeh Zargar, Alireza Keshavarz, Stefan Iglauer
Research outputs 2022 to 2026
H2 is increasingly regarded as a decarbonized solution for the increasing energy demand. However, due to its low density, H2 cannot be easily compressed, and there is a need for materials that can store large amounts of H2. Here we tested H2 adsorption capacity of micro-polyethylene (MicroPE) – a significant environmental pollutant - at 1–70 bar and 30 °C. H2 adsorption capacity increased with increasing the adsorption pressure (from 0.06 mol/kg at 17.21 bar to 0.20 mol/kg at 68.11 bar for raw MicroPE). MicroPE activated with aqueous NaOH significantly changed H2 adsorption under the same operating conditions. H2 adsorption increased …
Microplastics Fouling Mitigation In Forward Osmosis Membranes By The Molecular Assembly Of Sulfobetaine Zwitterion, Javad Farahbakhsh, Mitra Golgoli, Mehdi Khiadani, Amir Razmjou, Masoumeh Zargar
Microplastics Fouling Mitigation In Forward Osmosis Membranes By The Molecular Assembly Of Sulfobetaine Zwitterion, Javad Farahbakhsh, Mitra Golgoli, Mehdi Khiadani, Amir Razmjou, Masoumeh Zargar
Research outputs 2022 to 2026
Forward osmosis (FO) membranes have potential for the efficient water and wastewater treatment applications. However, their development has faced significant challenges due to their fouling propensity. In this study, FO membranes modified with sulfobetaine zwitterions (i.e., [2-(Methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl) ammonium hydroxide) were fabricated and used for the first time to address microplastic (MP) fouling issue. Water flux, reverse salt flux (RSF), fouling, and flux recovery were evaluated for the membranes loaded with different quantities of the zwitterions ranging from 0.25 % to 2 %. The developed membranes were tested over 49 h with feed solutions containing polyethylene MPs and bovine serum albumin …
Harnessing The Power Of Metal-Organic Frameworks To Develop Microplastic Fouling Resistant Forward Osmosis Membranes, Mitra Golgoli, Javad Farahbakhsh, Abdul H. Asif, Mehdi Khiadani, Amir Razmjou, Michael L. Johns, Masoumeh Zargar
Harnessing The Power Of Metal-Organic Frameworks To Develop Microplastic Fouling Resistant Forward Osmosis Membranes, Mitra Golgoli, Javad Farahbakhsh, Abdul H. Asif, Mehdi Khiadani, Amir Razmjou, Michael L. Johns, Masoumeh Zargar
Research outputs 2022 to 2026
With the gradual increase of microplastics (MPs) in water and wastewater streams, it is imperative to investigate their removal using tertiary treatment systems to minimize and preferably prevent their entrance into aquatic environments. Forward osmosis (FO) is a non-pressurized membrane process with potential applications in MPs removal from wastewater. However, efficient application of FO systems relies on developing high-performance FO membranes with low fouling tendency. MPs are proven as emerging foulants in membrane systems, diminishing their performance and lifetime and this highlights the need to consider MP fouling in developing sustainable membranes. The current study focuses on a novel modification …
Assessing The Release Of Microplastics And Nanoplastics From Plastic Containers And Reusable Food Pouches: Implications For Human Health, Kazi Albab Hussain, Svetlana Romanova, Ilhami Okur, Dong Zhang, Jesse Kuebler, Xi Huang, Bing Wang, Lucia Fernandez-Ballester, Yongfeng Lu, Mathias Schubert, Yusong Li
Assessing The Release Of Microplastics And Nanoplastics From Plastic Containers And Reusable Food Pouches: Implications For Human Health, Kazi Albab Hussain, Svetlana Romanova, Ilhami Okur, Dong Zhang, Jesse Kuebler, Xi Huang, Bing Wang, Lucia Fernandez-Ballester, Yongfeng Lu, Mathias Schubert, Yusong Li
Department of Civil and Environmental Engineering: Faculty Publications
This study investigated the release of microplastics and nanoplastics from plastic containers and reusable food pouches under different usage scenarios, using DI water and 3% acetic acid as food simulants for aqueous foods and acidic foods. The results indicated that microwave heating caused the highest release of microplastics and nanoplastics into food compared to other usage scenarios, such as refrigeration or room-temperature storage. It was found that some containers could release as many as 4.22 million microplastic and 2.11 billion nanoplastic particles from only one square centimeter of plastic area within 3 min of microwave heating. Refrigeration and room-temperature storage …
Microplastics Fouling And Interaction With Polymeric Membranes: A Review, Mitra Golgoli, Mehdi H. Khiadani, Abdellah Shafieian, Tushar K. Sen, Y. Hartanto, M. L. Johns, Masoumeh Zargar
Microplastics Fouling And Interaction With Polymeric Membranes: A Review, Mitra Golgoli, Mehdi H. Khiadani, Abdellah Shafieian, Tushar K. Sen, Y. Hartanto, M. L. Johns, Masoumeh Zargar
Research outputs 2014 to 2021
The emergence and accumulation of microplastics (MPs) in various aquatic environments have recently raised significant concerns. Wastewater treatment plants (WWTPs) have been identified as one of the major sources of MPs discharge to the environment, implying a substantial need to improve advanced techniques for more efficient removal of MPs. Polymeric membranes have been proven effective in MPs removal. However, fouling is the main drawback of membrane processes and MPs can foul the membranes due to their small size and specific surface properties. Hence, it is important to investigate the impacts of MPs on membrane fouling to develop efficient membrane-based techniques …
The Transport Of Non-Spherical Particles In A Simulated Ocean Environment, Hannah Reed
The Transport Of Non-Spherical Particles In A Simulated Ocean Environment, Hannah Reed
REU Final Reports
Plastic particles contaminating the world’s oceans and accumulating in oceanic gyres has become a ubiquitous problem and the solution involving how to clean up the debris efficiently has still not been found. One particular issue is understanding where the greatest densities of debris may be. It is known that floating trash will tend to accumulate in large circular systems of ocean water called gyres, however these areas span thousands of miles of ocean. The present study aims to understand the transport of anisotropic particles in conditions similar to an oceanic environment using experimental methods in an effort to better predict …
Realizing Urban Water Pollution Impact In Melbourne, Australia Through Painting, Gregory Suplinskas
Realizing Urban Water Pollution Impact In Melbourne, Australia Through Painting, Gregory Suplinskas
Independent Study Project (ISP) Collection
Throughout the month of November 2016, I undertook a creative environmental art project in Melbourne, Australia. I chose to create a water-soluble oil painting (dimensions 3 ft. x 4 ft.) that represents water pollution problems in the city of Melbourne, particularly in Port Phillip Bay. These problems include toxic stormwater runoff, plastics pollution and plastic nurdles, as well as nutrient buildup and algal overgrowth. The painting includes messages regarding sustainability; sustainable action limits the use of our natural resources so that humans can preserve the environment for future generations rather than degrade it. In the painting, I combine conceptual and …