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Papers
61,005 resultsShowing papers similar to Towed dredge for collection of microplastics from the surface of the bottom through density separation
ClearA new small device made of glass for separating microplastics from marine and freshwater sediments
Researchers developed a new compact glass device for extracting microplastics from marine and freshwater sediments via density separation, addressing shortcomings of existing apparatus such as poor recovery rates and time inefficiency.
An efficient extraction device for microplastics in marine sediments and its applications
Researchers developed a new high-efficiency extraction device for separating microplastics from marine sediment samples using air pumps and metal perforated plate fillers. The device demonstrated improved effectiveness and efficiency compared to conventional density flotation methods for isolating plastic particles. The study suggests this tool could enhance the accuracy of quantitative microplastic detection in marine environments where sediments serve as significant pollution sinks.
Separation of microplastics from deep-sea sediment using an affordable, simple to use, and easily accessible density separation device
Researchers developed an affordable, simple, and accessible density separation device for extracting microplastics from deep-sea sediment, addressing the lack of accuracy and reproducibility in existing extraction methods. The study included spike-recovery experiments as positive controls to validate extraction performance across different sediment matrices.
Validation of density separation for the rapid recovery of microplastics from sediment
Researchers validated a density separation method for rapidly recovering microplastics from sediment samples, confirming it as a reliable and efficient approach for routine environmental monitoring.
Separation of microplastics from deep-sea sediment using an affordable, simple to use, and easily accessible density separation device
This study developed an affordable, simple technique for separating microplastics from deep-sea sediment samples, using density separation and chemical digestion to achieve reliable extraction of plastic particles from these challenging matrices.
Microplastic extraction from sediments established? – A critical evaluation from a trace recovery experiment with a custom-made density separator
Scientists evaluated the accuracy of a custom density separator for extracting small microplastic particles from sediment, finding variable recovery rates across different polymer types. Standardized and validated extraction methods are essential for accurate measurements of microplastic contamination in sediment environments.
A novel, highly efficient method for the separation and quantification of plastic particles in sediments of aquatic environments
Researchers improved a density separation method for isolating microplastics from aquatic sediments, achieving higher recovery rates and reducing processing time compared to earlier approaches. The validated method was designed to be reproducible and cost-effective, addressing the need for reliable standardized protocols in microplastic monitoring.
Optimization of elutriation device for filtration of microplastic particles from sediment
Researchers optimized an elutriation device — which uses upward water flow to separate particles by density — achieving high microplastic recovery rates from sediment by adjusting flow rate and column diameter. The optimized device provides a practical, low-cost tool for extracting microplastics from environmental sediment samples in research and monitoring programs.
An optimized density-based approach for extracting microplastics from soil and sediment samples
Researchers optimized a density-based extraction method for isolating microplastics from soil and sediment samples, testing different density solutions and separation steps to maximize recovery efficiency. The improved protocol reduces contamination risks and particle loss, enabling more accurate quantification of microplastics in terrestrial and freshwater sediment matrices.
Marine Sediment Sampling With an Underwater Legged Robot: A User-Driven Sampling Approach for Microplastic Analysis
Researchers developed a novel marine sediment sampling system using an underwater legged robot designed specifically for microplastic assessment studies. The system was built to meet the requirements of marine biologists, allowing precise sediment collection at controlled depths with minimal disturbance, enabling more reliable and repeatable microplastic sampling in underwater environments.
Evaluation of microplastics sediment sampling techniques—efficiency of common methods and new approaches
Researchers tested how well common sediment sampling tools capture microplastics in riverbeds and found that standard grab samplers and corers lose fine, low-density particles — the very type that microplastics tend to be. A combination of methods is needed for accurate measurements, and freeze coring shows promise as a more reliable future technique.
Extraction of microplastics from sediment matrices: Experimental comparative analysis
Extraction efficiencies of four methods for separating microplastics from sediment matrices were experimentally compared using spiked samples, finding that density separation with saturated NaCl was adequate for most polymer types but underperformed for high-density polymers, and that no single method achieved complete recovery across all particle sizes and shapes.
A novel method enabling the accurate quantification of microplastics in the water column of deep ocean
A new sampling method was developed to accurately measure microplastics in the deep ocean water column, addressing gaps left by traditional net trawls that miss very small particles. Reliable deep-sea sampling is critical since the deep ocean is thought to be a major sink for global microplastic pollution.
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.
A small-scale, portable method for extracting microplastics from marine sediments
Researchers developed a portable, low-cost device for extracting microplastics from marine sediments using density flotation with zinc chloride solution. The Sediment-Microplastic Isolation unit achieved an average extraction efficiency of nearly 96% across different sediment types in a single step. This tool makes it easier for researchers to accurately measure microplastic contamination in seafloor sediments during field work.
Robotic Vacuum Cleaner for Microplastics
Researchers developed a robotic device capable of vacuuming up tiny plastic particles floating on the surface of water bodies, offering a new tool for cleaning up microplastic pollution in lakes, ponds, or coastal areas. The device represents a step toward automated, scalable approaches for removing microplastics from aquatic environments.
New method for extracting microplastics from sediments using a hydrocyclone and sieve
Researchers developed a faster way to pull microplastics out of sediment using a hydrocyclone — a device that spins water and particles using centrifugal force — processing about 10 kg of sediment in just 30 seconds. This is dramatically faster than current lab methods and could help scientists study microplastic pollution at much larger scales without needing toxic chemicals.
Comparison of Different Procedures for Separating Microplastics from Sediments
Researchers compared three different methodologies for separating dense microplastics from fine sediments, finding significant differences in recovery rates and identifying contamination risks during the separation procedures.
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.
Towards Accessible Aquatic Cleanup: A Low-Cost Solution for Floating Waste Extraction
Researchers designed and tested a low-cost autonomous floating waste extractor using a conveyor mechanism to capture lightweight surface pollutants including microplastics, demonstrating high efficiency in capturing debris and offering an affordable solution for resource-constrained settings.
Laboratory Designed Portable Device for Density Separation and Characterization of Microplastics in Environmental Soil Samples
Scientists designed a small, portable device for extracting microplastics from soil and sediment samples using a density separation method with different salt solutions, successfully isolating PET, LDPE, PVC, and PP from samples collected in school yards, lakesides, and agricultural fields. A portable, low-cost device lowers the barrier to field-based microplastic monitoring and could enable wider participation in pollution surveys.
Comparison of pre-treatment methods and heavy density liquids to optimize microplastic extraction from natural marine sediments
Researchers compared multiple pre-treatment methods and density separation liquids for extracting microplastics from marine sediments, identifying optimised protocols that improved recovery rates and reduced contamination, supporting the development of more standardised monitoring approaches.
An innovative approach for microplastic sampling in all surface water bodies using an aquatic drone
Researchers adapted an aquatic drone to sample microplastics in surface water, finding it produced results comparable to the standard Manta net while offering better reproducibility and improved capture of smaller, lighter particles in both river and coastal environments.
Comparison between the traditional Manta net and an innovative device for microplastic sampling in surface marine waters
Researchers compared a traditional Manta trawl net to an innovative sampler called MuMi for collecting microplastics from sea surface water, finding the MuMi offered advantages in ease of use, lower cost, and capturing smaller particles, while both methods revealed variability driven by sampling mesh size.