This invention describes an innovative polymeric composite membrane that integrates zeolitic imidazole frameworks decorated with graphene oxide nanosheets, designed to tackle the challenging issue of removing water contaminants from polluted water sources. Unlike conventional filtration systems, this advanced membrane technology enhances separation efficiency, reduces fouling, and is engineered for reusability, making it a groundbreaking solution in the field of water purification.
Figure (1) Polymeric composite membranes: A barrier against heavy metal pollution
The challenge with existing water purification technologies, particularly those aimed at removing water contaminants, is their low efficiency, high operational costs, and propensity for rapid fouling, which diminishes their effectiveness and lifespan. Traditional methods often fail to provide a sustainable solution, as they require frequent replacement and maintenance, driving up costs and environmental waste. This invention addresses these issues by utilizing a nanoscale engineering approach to significantly improve the functionality and operational efficiency of filtration membranes.
The superior efficacy in removing up to 99% of water contaminants from polluted water, thereby showing a significant improvement over traditional filtration methods due to
- Unique integration of nanohybrid, specifically the combination of ZIF with graphene oxide nanosheets, embedded within various polymeric matrices
Reduction in fouling, a common problem in membrane technology, thus extending the operational life and reducing the frequency and costs associated with membrane replacement by the
- Fortification of the structural design by the nanomaterials, which imparts remarkable mechanical strength and durability, making the membranes capable of withstanding harsh operational environments typical in industrial water treatment
Long-term use of the membranes with the ability to be cleaned and reused multiple times without a loss in performance, offering an eco-friendly and cost-effective solution through
- Optimization of the physiochemical properties of the membranes, which is crucial for accomplishing quality water reclamation
The prototype of the composite membrane demonstrates a water permeation flux reaching upto ~350 L/m2/h, negatively charged surface with zeta potential of about -35 mV, and improved hydrophilicity with water contact angles decreasing to as low as 48°. These properties help prototype achieve excellent performance in water reclamation, indicating their suitability for commercial deployment.
At present, the prototype membrane has been fabricated using a phase inversion technique, which involves embedding the metal-carbon nanohybrid into a polymer matrix to form a structurally stable and functional filtration medium.
These prototypes were rigorously tested under varied conditions that mimic real-world industrial applications to demonstrate their effectiveness and durability. The tests confirmed the membrane’s high efficiency in pollutant removal and its robustness, showcasing its potential for commercial scale-up and widespread use.
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The societal impact of this technology is profound, particularly in terms of environmental protection. By providing a highly effective method for removing toxic substances from water, it contributes to the safety and cleanliness of global water resources, which is crucial for human health and biodiversity. Economically, it offers industries a cost-efficient alternative to traditional water treatment methods, reducing operational costs and minimizing waste.
- Environmental Remediation: To treat industrial wastewater laden with water contaminants, e.g., heavy metals.
- Recycling Systems within Industrial Facilities: Ideal for use where water quality is critical and sustainability is a goal.
- Research and Development: To explore the interactions between the membranes and the environmental pollutants, opening new avenues for advancements in pollution control technologies.
Geography of IP
Type of IP
202023001671
465993