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61,005 resultsShowing papers similar to Microplastics Removal in a Dynamic Coagulation-Flocculation-Sedimentation System
ClearMicroplastic removal in batch and dynamic coagulation-flocculation-sedimentation systems is controlled by floc size
This study found that microplastic removal during water treatment is strongly controlled by coagulant dosage and operating conditions, with sweep flocculation at higher dosages achieving much better removal than charge-neutralization regimes used at lower dosages.
Understanding and Improving Microplastic Removal during Water Treatment: Impact of Coagulation and Flocculation
Researchers systematically tested coagulation and flocculation for removing microplastics from drinking water, finding that removal efficiency depended strongly on plastic particle size and whether particles had been weathered, with smaller pristine particles being the hardest to remove.
Microplastic removal in coagulation-flocculation: Optimization through chemometric and morphological insights
Researchers optimized the coagulation-flocculation process — a standard water treatment step where chemicals cause particles to clump and settle — for removing three types of microplastics: polypropylene, polyethylene, and polystyrene. Polystyrene was removed most efficiently, and adjusting pH, coagulant type, and dosage significantly improved removal rates, providing practical guidance for upgrading existing water treatment plants to better capture microplastics.
Size and Shape Distribution of Microplastics in PET Recycled Wastewater and Their Removal Behavior during the Coagulation–Flocculation Process
Researchers investigated the size and shape distribution of microplastics in wastewater from a PET recycling facility and evaluated removal efficiency through coagulation-flocculation, finding that fragment-shaped and medium-sized particles were most abundant and most effectively removed. The study demonstrates that coagulation-flocculation is a strong candidate for controlling microplastic release from plastic recycling facilities.
Comparative Removal Efficiency of Polypropylene Microplastics from Aqueous Solutions by Filtration, Centrifugation, and Flocculation
Researchers compared three methods (filtration, centrifugation, and flocculation) for removing polypropylene microplastics from laboratory water samples, evaluating removal efficiency and practicality for use as a foundation for standardized environmental water treatment protocols.
Evaluating theEfficiency of Enhanced Coagulationfor Nanoplastics Removal Using Flow Cytometry
Researchers evaluated the efficiency of enhanced coagulation for removing nanoplastics from water using flow cytometry as a quantification tool, addressing the interconnected challenges of nanoplastic removal and detection in conventional water treatment systems.
Mathematical modeling of water flocculation process with high turbidity: studies and comparative analysis between methods and models
This study compared mathematical models for predicting flocculation kinetics in water treatment, an important process for removing suspended particles including microplastics. More accurate flocculation models help optimize water treatment efficiency and reduce the microplastic particles that pass through conventional treatment into drinking water.
Coagulation and Flocculation before Primary Clarification as Efficient Solutions for Low-Density Microplastic Removal from Wastewater
Researchers tested coagulation and flocculation treatments before primary clarification in a wastewater treatment plant, finding up to 90% removal efficiency for low-density microplastics using PAX coagulant, with different reagents directing microplastics to either settled or floated sludge fractions.
The influence of coagulation process conditions on theefficiency of microplastic removal in water treatment
Researchers investigated how coagulation process conditions — including coagulant type, pH, and microsand addition — affect the removal of polyethylene, PVC, and textile microfibers from river water, municipal wastewater, laundry effluent, and synthetic matrices. Ferric chloride and polyaluminum chloride both achieved substantial removal, with performance varying significantly by water matrix and microplastic type.
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence
This study investigated how coagulation conditions affect microplastic aggregation in water treatment, finding that coagulant type and dose significantly influence floc formation with plastic particles and ultimately removal efficiency.
Microplastics removal through water treatment plants: Its feasibility, efficiency, future prospects and enhancement by proper waste management
Researchers reviewed over 80 studies on water treatment plant performance and found microplastic removal ranges widely — from 16% in basic primary treatment up to near 100% with advanced membrane systems — but a major flaw is that removed microplastics concentrate in sludge, which can re-enter the environment. The review recommends optimizing coagulants and sludge treatment to prevent microplastics from simply being relocated rather than eliminated.
Treatment technologies for the removal of micro plastics from aqueous medium
Researchers reviewed treatment technologies for removing microplastics from water, finding that while multiple methods including filtration, membrane processes, and coagulation show promise, their effectiveness depends on microplastic size, type, and concentration.
The Effects of Microplastics on Floc Formation, Nutrient Removal and Settleability in Wastewater Treatment
Researchers investigated how microplastics affect floc formation, nutrient removal, and settleability in wastewater treatment systems, examining the mechanisms by which these ubiquitous anthropogenic pollutants entering via packaging, cosmetics, and other production sectors disrupt activated sludge processes.
Evaluating the Efficiency of Enhanced Coagulation for Nanoplastics Removal Using Flow Cytometry
Flow cytometry was used to quantify fluorescently labeled nanoplastics removal during enhanced coagulation-flocculation water treatment, demonstrating that this technique enables accurate detection and process optimization for nanoplastic removal in drinking water treatment.
Coagulation technologies for separation of microplastics in water: current status
This review examines how coagulation water treatment technologies can remove microplastics from water. Conventional coagulation achieves 8-98% removal efficiency while electrocoagulation achieves 8-99%, depending on conditions, offering a potentially effective approach for reducing microplastics in drinking water and wastewater.
Removal efficiency of 0.3 to 4 millimeters microplastics in raw water via coagulation and flocculation process
This study tested how effectively a conventional coagulation and flocculation water treatment process could remove microplastics in the 0.3–4 mm size range from raw water. The treatment achieved meaningful removal rates, suggesting that existing drinking water infrastructure can provide some protection against microplastic contamination.
Elimination of a Mixture of Microplastics Using Conventional and Detergent-Assisted Coagulation
Researchers tested coagulation as a method to remove microplastics from tap water, evaluating how microplastic type (PE and PVC), water pH, coagulant dose, and microplastic concentration affect removal efficiency, and finding that detergent-assisted coagulation improves performance.
Quantitively Analyzing the Variation of Micrometer-Sized Microplastic during Water Treatment with the Flow Cytometry-Fluorescent Beads Method
Researchers developed a flow cytometry-fluorescent bead method for quantitatively measuring the removal of micrometer-sized microplastics during water treatment processes, demonstrating a rapid and reliable analytical approach for evaluating treatment plant efficiency.
Microplastic removal by coagulation: a review of optimizing the reaction conditions and mechanisms
This review examines recent advances in using coagulation to remove microplastics from water and wastewater, analyzing how factors like coagulant type, dosage, pH, and particle shape affect removal efficiency. Researchers found that optimizing these reaction conditions is critical for maximizing microplastic removal while reducing energy costs. The study highlights significant knowledge gaps in understanding the mechanisms behind coagulation-based microplastic removal and calls for more extensive research.
A comprehensive review of microplastics in wastewater treatment plants
This review surveys microplastic removal technologies used in wastewater treatment plants, comparing membrane bioreactors, electrocoagulation, coagulation-sedimentation, and biodegradation approaches. Understanding removal efficiency at treatment plants is critical because they are a primary pathway by which microplastics — and the toxic chemicals they carry — reach rivers, coastal waters, and ultimately drinking water supplies.
Microplastics in the continuous biofilm reactor: Occurrence, fate, and removal
A laboratory-scale continuous biofilm reactor was monitored for microplastic occurrence, fate, and removal over 53 days. Microplastics were detected at all stages of the reactor and were partially retained within the biofilm. The study shows that biofilm reactors can reduce microplastic concentrations in treated water but do not eliminate them entirely.
Filtration Methods for Microplastic Removal in Wastewater Streams — A Review
This review surveys filtration, membrane, coagulation, and biological methods for removing microplastics from wastewater, concluding that membrane bioreactors and dynamic membranes are among the most effective current technologies. The paper provides a useful comparative overview for engineers and policymakers seeking cost-effective solutions to prevent microplastics from passing through treatment plants into waterways.
The removal of microplastics from water by coagulation: A comprehensive review
This review comprehensively examined coagulation as a technology for removing microplastics from drinking water and wastewater treatment plants, analyzing the mechanisms, influencing factors, and effectiveness of different coagulants for microplastic removal.
Influence of wastewater treatment process on pollution characteristics and fate of microplastics
Researchers investigated microplastic abundance and removal efficiency across four wastewater treatment plants using different treatment technologies, finding influent concentrations between 539 and 1,290 particles per liter that were reduced substantially by primary and secondary treatment. Smaller microplastic particles proved hardest to remove and most likely to persist in final effluent.