A new water filter breakthrough eliminates forever chemicals using modified graphene oxide
Graphene oxide filter efficiently removes PFAS chemicals.
A recent scientific advance from Monash University addresses the critical issue of removing 'forever chemicals' or PFAS from drinking water. These substances, known for their resistance to degradation and their health hazards, find their way into numerous products, and conventional treatment methods fall short. By exploiting the properties of modified graphene oxide combined with a carbohydrate called beta-cyclodextrin, researchers have developed a potent filtration membrane. Graphene oxide, a form of carbon known for its remarkable strength and conductivity, is made by oxidizing graphite. Beta-cyclodextrin is a cyclic oligosaccharide with the ability to entrap molecules within its ring structure, which is leveraged here for capturing PFAS molecules.
Eubert Mahofa, the project lead, emphasized the membrane’s dual functionality: eliminating minute pollutants efficiently while allowing swift water passage. Effective filtering without sacrificing flow rate presents a major progression in water purification technology. Through a process called shear alignment printing, the team efficiently crafted these membranes, which remain effective across varying water temperatures — a critical factor for practical usage in diverse environments.
Dr. Sally El Meragawi stressed the importance of balancing contaminant removal with the preservation of essential minerals in the water, crucial for maintaining health standards. This dual capability makes the technology applicable to both potable water and wastewater scenarios, ensuring safe and healthy consumption. It's of significant benefit for potentially every major water utility or purification facility interested in employing this innovation for improved public health.
The breakthrough’s real game-changer lies in its customization potential. Professor Mainak Majumder noted this aspect, highlighting that the chemical properties of beta-cyclodextrin could be altered to effectively target varied pollutants such as pharmaceuticals, heavy metals, and pesticides. The evolution of such adjustable water filters opens opportunities for precise contaminant targeting, setting a new standard in water purification.
This endeavor is the result of a partnership between Monash University, Clean TeQ Water, and NematiQ. Their collective expertise combines academic research with practical application, steering this innovative membrane technology towards wide-scale implementation. This achievement marks an essential step forward in combatting global water pollution challenges, promising cleaner, safer water for all.
Sources: Monash University, TechSpot, Clean TeQ Water