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61,005 resultsShowing papers similar to Enhanced removal of polyethylene microplastics from water through polymeric ferric sulfate with laminarin
ClearEfficiency and mechanism of micro- and nano-plastic removal with polymeric Al-Fe bimetallic coagulants: Role of Fe addition
Researchers investigated polymeric Al-Fe bimetallic coagulants for removing micro- and nanoplastics from drinking water, finding that iron addition enhanced nanoplastic removal efficiency through improved charge neutralization and floc formation mechanisms.
Microplastics removal from natural surface water by coagulation process
Researchers compared the effectiveness of ferrous and aluminum sulfate coagulants for removing microplastics from natural surface water, finding that both successfully removed polystyrene and polyvinyl chloride particles. Ferrous sulfate showed slightly higher removal efficiency, and the addition of coagulant aids further improved results. The study demonstrates that conventional coagulation processes already used in drinking water treatment can meaningfully reduce microplastic contamination.
Enhanced Removal of Polystyrene Microplastics from Water Through Coagulation Using Polyaluminum Ferric Chloride with Coagulant Aids
Researchers tested enhanced coagulation using modified coagulants to remove polystyrene microplastics from water, finding that surface-modified coagulants achieved significantly higher removal efficiencies than conventional alum. Removal reached over 90% under optimized conditions, demonstrating a practical upgrade pathway for conventional water treatment plants to reduce microplastic discharge.
Enhancing nano and microplastics destabilization: Synergistic effects of natural mucin and conventional coagulants in water and wastewater treatment
Researchers investigated whether combining jellyfish mucus with conventional water treatment coagulants could improve removal of micro- and nanoplastics from water. The synergistic combination achieved over 90% removal efficiency with settling times under 5 minutes, outperforming either agent alone by leveraging bridging and entrapment mechanisms.
Magnetic polymeric ferric magnesium chloride: Fe species distribution, characterization and coagulation removal of microplastics in water
Researchers developed a magnetic polymeric ferric magnesium chloride (MPFMC) coagulant and characterized its iron species distribution and physicochemical properties for use in removing microplastics from water. The study elucidated the coagulation mechanism by which MPFMC captures microplastic particles, demonstrating its potential as an efficient water treatment agent.
Removal characteristics of microplastics by Fe-based coagulants during drinking water treatment
The removal of polyethylene microplastics from drinking water was tested with Fe-based coagulants under various conditions, finding that traditional coagulation alone achieved below 15% removal, while coagulation combined with ultrafiltration substantially improved performance. The study identifies the limitations of conventional water treatment for microplastic removal and highlights ultrafiltration as a necessary add-on for effective particle reduction.
Enhancing microplastic removal from natural water using coagulant aids
Researchers tested different chemical treatments for removing microplastic beads from natural water and found that polyaluminium chloride combined with polyacrylamide achieved over 95% removal across six common plastic types. The treatment worked on particles ranging from 10 to 1,000 micrometers, and natural organic matter in the water actually improved performance. The findings suggest that optimizing standard water treatment processes could be a practical way to reduce microplastic contamination in drinking water sources.
Investigating the Potential of Coagulants to Improve Microplastics Removal in Wastewater and Tap Water
Researchers found that adding coagulants (FeCl3 or Al2(SO4)3) to wastewater and tap water improved microplastic removal, with aluminum sulfate achieving 43% and 62% removal efficiencies respectively, though the high concentrations required suggest that combining coagulants with organic polyelectrolytes could improve practicality.
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.
Influence of Different Coagulants on Microplastics Removal
Researchers compared the effectiveness of different coagulants—including aluminum sulfate, ferric chloride, and polyaluminum chloride—for removing microplastics from water, finding significant performance differences dependent on plastic particle size, charge, and coagulant dose.
Removal of polystyrene and polyethylene microplastics using PAC and FeCl3 coagulation: Performance and mechanism
Researchers studied how two common water treatment coagulants, PAC and iron chloride, remove polystyrene and polyethylene microplastics from water. They found that PAC was more effective than iron chloride, and that alkaline conditions improved removal rates. The study provides practical insights for drinking water treatment plants looking to reduce microplastic contamination in their supply.
Research on Effect of Microplastics Removal through Combination of Coagulation and Sand Filtration
Researchers tested three coagulants — ferric chloride (FeCl3), polyferric sulfate (PFS), and polyaluminum chloride (PAC) — for microplastic removal from secondary wastewater effluent, finding that 40 mg/L PFS achieved the highest coagulation removal rate of 61%. A combined PFS plus sand filtration process removed 91% of microplastics, 82% of suspended solids, and 85% of total phosphorus at a treatment cost of approximately 0.0594 Yuan per tonne of wastewater.
Phenolic-modified cationic polymers as coagulants for microplastic removal
Researchers developed phenolic-modified cationic polymer coagulants inspired by natural metal-phenolic coordination chemistry, achieving over 90% removal of polystyrene microplastics from water. The surface modification approach simplified the two-step coagulation process and expanded the range of effective coagulant materials.
Removal of Pristine and UV-Weathered Microplastics from Water: Moringa oleifera Seed Protein as a Natural Coagulant
Researchers tested a natural plant-based coagulant from Moringa oleifera seeds for removing microplastics from water, comparing it to conventional chemical treatments. The natural coagulant effectively removed both fresh and UV-weathered polyethylene microplastics, performing comparably to synthetic alternatives. This approach offers a more eco-friendly and less toxic option for cleaning microplastics from water systems.
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.
Sustainable Removal of Microplastics and Natural Organic Matter from Water by Coagulation–Flocculation with Protein Amyloid Fibrils
Researchers developed a novel water treatment method using protein-based amyloid fibrils as a natural flocculant to remove microplastics and dissolved organic matter from water. The method achieved removal efficiencies above 97% for both microplastic particles and humic acid, outperforming conventional chemical flocculants at the same dosage. The approach offers a sustainable, biodegradable alternative to traditional water treatment chemicals for addressing microplastic contamination.
Synergistic fouling mitigation of co-contaminants of ultrafine microplastics and organics in seawater pretreatment using ferrous iron/peracetic acid
Researchers developed an advanced coagulation method using ferrous iron and peracetic acid to remove ultrafine microplastics and algal organic matter from seawater during desalination pretreatment. The new system achieved 84% turbidity removal, far surpassing conventional ferrous iron treatment at 19%, by forming larger and denser particle clusters. The study demonstrates that this approach could address the growing challenge of microplastic-organic co-contamination in seawater treatment.
Improving nanoplastic removal by coagulation: Impact mechanism of particle size and water chemical conditions
Researchers found that coagulation using aluminum chlorohydrate and polyacrylamide achieved up to 98.5% removal efficiency for polystyrene nanoplastics, with smaller particles being easier to remove, though humic acid in water competed for adsorption sites and reduced effectiveness.
Efficient, quick, and low-carbon removal mechanism of microplastics based on integrated gel coagulation-spontaneous flotation process
Researchers developed a new gel-based coagulation and flotation method for removing microplastics from water using a natural seaweed-derived crosslinker. The process achieved high removal rates quickly while using significantly less energy than traditional coagulation-flotation approaches. The study offers a more efficient and lower-carbon approach to water treatment that could help address microplastic contamination in drinking water and wastewater systems.
Coagulative removal of microplastics from aqueous matrices: Recent progresses and future perspectives
This review examines how coagulation, a common water treatment technique, can be used to remove microplastics from water. Researchers compared the effectiveness of different coagulants, finding that natural options like chitosan and protein-based coagulants achieved removal rates above 90 percent. The study highlights the promise of natural coagulants as a more sustainable approach to tackling microplastic contamination in water treatment systems.
Removal of microplastics from water by coagulation of cationic-modified starch: An environmentally friendly solution
Researchers developed a cationic-modified starch bio-coagulant as an eco-friendly method for removing microplastics from water, achieving an average removal rate of over 65% for polystyrene particles. The starch-based treatment was effective across a wide range of water pH levels and performed well in natural water samples from China's Yangtze River Delta. The study offers a sustainable and cost-effective approach for addressing microplastic contamination in water systems.
Removal of microplastics from water by magnetic nano-Fe3O4
Researchers developed a method for removing microplastics from water using magnetic iron oxide nanoparticles that attach to plastic surfaces, allowing the particles to be pulled out with a magnet. The technique achieved removal rates above 80% for common microplastic types in environmental water samples including river water, sewage, and seawater, suggesting a practical approach for water treatment.
Enhancing the coagulation process for the removal of microplastics from water by anionic polyacrylamide and natural-based Moringa oleifera
Scientists tested improved water treatment methods using aluminum sulfate combined with either a synthetic aid or natural Moringa oleifera seed extract to remove microplastics from water. Both combinations achieved over 80-93% removal for certain plastic types, and the natural plant-based approach cut the required chemical dose in half -- offering a more sustainable way to keep microplastics out of drinking water.
Utilization of chitosan as a natural coagulant for polyethylene microplastic removal
Scientists tested chitosan, a natural material derived from shellfish, as an eco-friendly way to remove polyethylene microplastics from water. Under the best conditions (pH 6.0 with 100 mg/L of chitosan), the treatment removed 81.5% of microplastics, offering a promising and environmentally safe approach to cleaning microplastic-contaminated water.