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Papers
61,005 resultsShowing papers similar to Ultrasonic Acoustic Standing Waves for Efficient Microplastic Removal: a Scalable and Sustainable Approach to Wastewater Treatment
ClearA Novel Application of Ultrasound for Removal of Aqueous Microplastics
Researchers investigated bath-type ultrasonication as a novel method for removing microplastics from aqueous environments, reporting this as the first application of this technique for microplastic remediation. The ultrasound-based approach showed promise as an effective treatment strategy for addressing microplastic pollution in water systems.
High-efficiency and chemical-free microplastic recovery from laundry effluent using parallel and series acoustic focusing systems
This study developed a compact acoustic focusing system — roughly half the size of a sheet of paper — capable of separating microplastic fibers from laundry wastewater at 100 milliliters per minute with over 90% recovery efficiency and no chemicals required. The device uses sound waves to push plastic particles to the center of flow channels, concentrating them for removal without filters, coagulants, or surfactants. This chemical-free approach could be scaled for household washing machines or industrial laundries, potentially cutting a major source of aquatic microplastic pollution at the source.
Experimental Investigation of the Influence of High-Frequency Standing Sound Waves on Depth Filtration Using Coarse-Pored Media
This study investigated using high-frequency sound waves to improve depth filtration of fine particles from suspensions. Acoustic filtration enhancement could potentially be applied to improve microplastic removal in water treatment, where current filtration methods sometimes struggle with the smallest plastic particles.
Acoustofluidics for Micro and Nanoplastics Enrichment towards Environmental and Drinking Water Monitoring : A Story of Sound and Soul
This review examines acoustofluidic technology -- which uses sound waves to manipulate particles -- as an approach for concentrating micro- and nanoplastics from environmental and drinking water samples for monitoring purposes. The authors argue that acoustofluidics offers a promising, non-invasive platform for microplastic enrichment prior to analysis.
Remediation of Pollutants using Ultrasound Induced Cavitation: “Nanostars in a Jar”
This study investigates ultrasound-induced cavitation as an advanced method for removing emerging contaminants — including microplastics, pharmaceuticals, and pesticides — from wastewater that conventional treatment plants cannot fully address. The technique shows promise as a complement to existing water treatment technologies.
Microfiber Acoustic Recycling with Enzyme-Assisted Valorization and Elimination (MARVEL): A Novel Approach for Microplastic Isolation from WWT Sludge
Researchers developed MARVEL (Microfiber Acoustic Recycling with Enzyme-Assisted Valorization and Elimination), a novel approach combining acoustic methods and enzymatic treatment for isolating and valorizing microplastic microfibers from wastewater treatment sludge.
EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring
Researchers developed an acoustofluidic method called EchoTilt for capturing and enriching nanoplastics from water samples at high flow rates. The technique uses sound waves to trap particles as small as 25 nanometers in silica cluster grids, achieving a breakthrough in nanoplastic detection capability. The study demonstrates a promising approach for monitoring nanoplastic contamination in drinking water.
Evaluation of the Presence of Microplastics in Wastewater Treatment Plants: Development and Verification of Strategies for Their Quantification and Removal in Aqueous Streams
Researchers evaluated microplastic presence in wastewater treatment plants and developed a pilot capture system capable of detecting, quantifying, and removing microplastic particles from water. The study found that conventional treatment processes are insufficient for complete microplastic removal, highlighting the need for dedicated technologies to address this gap in water treatment infrastructure.
Development and evaluation of a water treatment system for the removal of microplastics in an aqueous medium.
Researchers developed and evaluated a water treatment system for removing microplastics from aqueous media, addressing the urgent environmental concern of microplastic contamination in rivers, seas, and oceans and assessing the system's effectiveness as a promising water purification technology.
Separation of Microplastics from Blood Samples Using Traveling Surface Acoustic Waves
Researchers developed a microfluidic device that uses sound waves to separate microplastic particles from human blood samples. The device successfully isolated polystyrene microplastics of different sizes from blood cells, with separation efficiency influenced by power levels and flow rate. This technology could enable more accurate measurement of microplastics circulating in human blood, which is important for understanding their potential health effects.
Study of increasing the flow rate of acoustic separation in a circular tube for microplastics collection
Researchers investigated acoustic separation as a method to collect microplastics smaller than 300 micrometers from water inside circular tubes, finding that increasing flow rates is feasible to improve collection efficiency.
Innovating Ferro-sonication approach for extracting microplastics from wastewater
Researchers developed a ferro-sonication approach for extracting microplastics from wastewater, combining magnetic separation with ultrasonic treatment to achieve high-efficiency particle recovery from complex effluent matrices.
A selective separation method for microplastics using ultrasonic jet atomization
Researchers developed a selective microplastic separation method using ultrasonic jet atomization, demonstrating that a diaphragm-based system can enclose microplastics in water into atomized mist and emit them into the air, with particle separation correlated to acoustic energy.
Microfiber Acoustic Recycling with Enzyme-Assisted Valorization and Elimination (MARVEL)
Researchers developed MARVEL, a two-stage system combining acoustic separation and enzyme-assisted degradation to remove and degrade microfiber plastics from wastewater treatment sludge. The system achieved high microfiber removal efficiency and enzymatic breakdown of isolated fibers, offering a promising approach to preventing sludge-derived MP re-entry into ecosystems.
A Novel Application of Filtration for the Collection of Microplastics in Waterways
Researchers developed a novel filtration system for collecting microplastics from waterways, demonstrating its effectiveness as a scalable and practical tool for environmental monitoring and plastic pollution assessment.
EchoGrid: High-Throughput Acoustic Trapping for Enrichment of Environmental Microplastics
Engineers developed the EchoGrid, a device that uses sound waves to capture and concentrate microplastics from large water samples for easier detection. The device can process drinking water and environmental samples much faster than existing methods, which is important because microplastics are often present at low concentrations that require large sample volumes to detect. Better detection tools like this are essential for understanding how much microplastic contamination exists in the water people drink.
Fundamental Study of the Removal of Microplastic Fibers Using Swirling Flow and Magnetic Field
Researchers developed a method combining swirling water flow and a magnetic field to remove microplastic fibers from laundry wastewater. The approach was effective at capturing fiber-shaped microplastics that typically pass through conventional sewage treatment, helping prevent them from entering waterways.
Innovative technologies for removal of micro plastic: A review of recent advances
Researchers reviewed emerging technologies for removing microplastics from wastewater, covering filtration, coagulation, biological treatment, and other methods used at treatment plants. The review highlights which approaches show the most promise and calls for broader adoption and improved standardization so that microplastics are more consistently captured before they reach rivers, lakes, and oceans.
Towards a More Sustainable Water Treatment: Design of a Hydrodynamic Test Rig and Testing of a Novel Microplastic Filter Using Biomimetics
Researchers designed a hydrodynamic test rig and a novel biomimetic microplastic filter inspired by aquatic filter-feeding organisms, aiming to improve solid-liquid separation in water treatment. The study demonstrates how biological filtration strategies can inform more sustainable industrial microplastic removal approaches.
Recent Developments in the Application of Ultrasonication in Pre-Treatment of Municipal Sewage Sludge
Not relevant to microplastics — this paper reviews ultrasonication as a pre-treatment method for municipal sewage sludge to improve anaerobic digestion efficiency, with no focus on plastic contamination.
Review: Impact of microfluidic cell and particle separation techniques on microplastic removal strategies
Researchers reviewed how microfluidic technology — the same miniaturized tools used in medical diagnostics to sort cells — could be adapted to separate and recover microplastics from water, offering a more precise and scalable alternative to conventional filtration methods used in wastewater treatment.
Effect of ultrasonication conditions on polyethylene microplastics sourced from landfills: A precursor study to establish guidelines for their extraction from environmental matrices
Researchers established optimal ultrasonication conditions for extracting polyethylene microplastics from landfill samples, finding that specific frequency and duration parameters significantly affect extraction efficiency and particle integrity.
Marine microplastic separation device based on micro nano bubble flotation technology
Researchers designed a marine microplastic separation device using micro-nano bubble flotation technology to address limitations of existing methods, enabling continuous separation of microplastic particles from seawater with improved efficiency and reduced risk of secondary contamination.
Microplastics_Removal
Researchers evaluated the efficiency of a microplastic removal system for synthetic wastewater that combines a chemical treatment process with simple filtration, measuring removal performance across different microplastic types and concentrations.