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Development of a schwarzite-based moving bed 3D printed water treatment system for nanoplastic remediation
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Researchers developed a 3D-printed moving bed water filter using schwarzite-coated materials that trap nanoplastics via surface charge interactions, demonstrating efficient removal of polycarbonate-derived nanoplastics from synthetic contaminated water in lab testing.
The impact of micro and nanoplastic debris on our aquatic ecosystem is among the most prominent environmental challenges we face today. In addition, nanoplastics create significant concern for environmentalists because of their toxicity and difficulty in separation and removal. Here we report the development of a 3D printed moving bed water filter (M-3DPWF), which can perform as an efficient nanoplastic scavenger. The enhanced separation of the nanoplastics happens due to the creation of a charged filter material that traps the more surface charged nanoparticles selectively. Synthetic contaminated water from polycarbonate waste has been tested with the filter, and enhanced nanoplastic removal has been achieved. The proposed filtration mechanism of surface-charge based water cleaning is further validated using density function theory (semi-empirical) based simulation. The filter has also shown good structural and mechanical stability in both static and dynamic water conditions. The field suitability of the novel treatment system has also been confirmed using water from various sources, such as sea, river, and pond. Our results suggest that the newly developed water filter can be used for the removal of floating nanoparticles in water as a robust advanced treatment system.
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Surface-Charge-Regulated MoS2 Membrane for Induced Agglomeration and Efficient Removal of Nanopollutants
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Scientists have developed a new water filter using a specially engineered material that gives tiny water pollutants, like nanoplastics and metal particles, an electric "charge" that makes them clump together, so they're easier to catch and remove. Unlike typical filters that force you to choose between fast water flow and thorough cleaning, this one does both: it filters water quickly while removing over 99% of these harmful particles. This matters because nanoplastics and metal contaminants are increasingly found in drinking water and are linked to potential health risks, so better filtration technology could help keep our water supplies safer.
3D-printed, flow-through water filters for microplastic capture: The effect of surface porosity, column height, and pressure-sensitive adhesives on removal efficiency
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Researchers developed 3D-printed flow-through filtration columns using fused deposition modeling for microplastic capture from wastewater, testing the effects of surface porosity, column height, and pressure-sensitive adhesive coatings on removal efficiency. The customizable and scalable design demonstrates the potential of additive manufacturing to produce effective and adaptable microplastic filtration systems.
Addressing plastic pollution: A 3D-printed porous PAC scaffold for effective nanoplastic removal
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Researchers used 3D printing to fabricate porous activated carbon scaffolds and demonstrated they effectively adsorb multiple types of nanoplastics — including polystyrene, PET, polypropylene, and PVC — from freshwater samples through a combination of pore-filling and chemical interactions, with stable performance across varied environmental conditions.
Rapid Sand Filtration Technique for Remediation of Microplastics
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Researchers tested rapid sand filtration as a technique for removing microplastics from water, evaluating particle removal efficiency across different plastic sizes, shapes, and filter media. The technique achieved meaningful microplastic reduction and was proposed as a practical water treatment enhancement.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.