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61,005 resultsShowing papers similar to Understanding and characteristics of coagulation removal of composite pollution of microplastic and norfloxacin during water treatment
ClearUnderstanding 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.
Sustainable removal of contaminants of emerging concern from wastewater by the living membrane bioreactor: effect of the co-occurrence of microplastics and antibiotics
Researchers investigated a living membrane bioreactor (LMBR) for removing the antibiotic ofloxacin and oxidized polyethylene microplastics from urban wastewater, finding that the biological membrane effectively retained both contaminants of emerging concern and that microplastics acted as antibiotic carriers, with their co-presence influencing overall removal efficiency.
Effects of microplastics accumulation and antibiotics contamination in anaerobic membrane bioreactors for municipal wastewater treatment
This study found that when aged PVC microplastics and the antibiotic ciprofloxacin are both present in wastewater treatment systems, they interact to make each other's harmful effects worse. The combination cut treatment efficiency in half and disrupted the microbes needed for wastewater processing, raising concerns about how microplastic pollution could undermine water treatment that protects public health.
Combined pollution of tetracyclines and microplastics in the aquatic environment: Insights into the occurrence, interaction mechanisms and effects
This review examines how microplastics and tetracycline antibiotics interact in water environments, since microplastics can absorb and carry antibiotics on their surfaces. Factors like pH, heavy metals, and organic matter in water influence how tightly antibiotics bind to microplastics, and the combined pollution is more harmful to aquatic life than either pollutant alone. This is relevant to human health because these microplastic-antibiotic combinations can enter drinking water supplies and promote antibiotic resistance.
Microplastic 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.
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.
Coagulation–Sedimentation in Water and Wastewater Treatment: Removal of Pesticides, Pharmaceuticals, PFAS, Microplastics, and Natural Organic Matter
This review evaluated how coagulation-sedimentation processes in water and wastewater treatment perform against emerging contaminants including microplastics, pharmaceuticals, pesticides, and PFAS. Researchers found that conventional coagulants can remove up to 95% of micro- and nanoplastics but are less effective for pharmaceuticals and PFAS, and that novel coagulant systems and hybrid approaches show promise for improving removal across contaminant types.
Characterization of microplastics and their interaction with antibiotics in wastewater
Researchers characterized microplastics in wastewater and investigated their interactions with antibiotics, examining how microplastic surfaces adsorb antibiotic compounds and the implications for antibiotic transport and dissemination in wastewater treatment systems.
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.
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.
Mechanistic insight into different adsorption of norfloxacin on microplastics in simulated natural water and real surface water
This study compared the adsorption of norfloxacin antibiotic onto microplastics in simulated natural water versus real surface water, finding that natural organic matter and competing ions in real water significantly reduced antibiotic uptake by microplastics.
Microplastics removal by coagulation: cutting-edge coagulants and coagulation processes
This review examines how coagulation, a water treatment process that clumps particles together for easier removal, can be used to filter microplastics from water. Researchers summarize recent advances in coagulant materials, including novel hybrid formulations, and the factors that influence their effectiveness. The study highlights coagulation as a practical and scalable approach for addressing microplastic contamination in water treatment systems.
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.
Behaviour of M. aeruginosa–Microplastic composite pollutants in coagulation and sludge storage
Microcystis aeruginosa extracellular polymers promoted adhesion of microplastics to algal flocs during coagulation, improving MP removal efficiency with polyaluminum chloride, while microplastics had opposite effects on algal removal depending on whether inorganic or organic coagulants were used.
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.
The occurence of pharmaceuticals and other micropollutants in wastewater treatment plant in the aspect of interaction with microplastics
Researchers analysed the occurrence of antibiotics, virucidal, and fungicidal pharmaceuticals in raw and treated sewage at a wastewater treatment plant in southern Poland, examining their removal efficiency and potential interactions with microplastics present in the effluent. The study found that pharmaceutical micropollutants persisted through treatment to varying degrees, raising concerns about combined contamination pathways when microplastics act as co-vectors for these compounds.
Microplastic interactions with co-existing pollutants in water environments: Synergistic or antagonistic roles on their removal through current remediation technologies
This review examines how microplastics interact with other pollutants like heavy metals, pesticides, and pharmaceuticals in water, often making each contaminant harder to remove during treatment. The interactions between microplastics and co-existing pollutants can produce unpredictable combined toxic effects that are worse than either pollutant alone. Understanding these interactions is important because real-world water contamination involves mixtures, not single pollutants, and current treatment methods may not adequately address these combinations.
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.
Evaluation of microplastic polyvinylchloride and antibiotics tetracycline co-effect on the partial nitrification process
This study investigated the combined effects of PVC microplastics and the antibiotic tetracycline on nitrification — the biological process by which wastewater treatment plants remove ammonia from sewage. Both pollutants reduced nitrification efficiency, and their combined presence caused greater disruption than either alone, complicating the treatment of wastewater that contains multiple contaminants.
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.
Removal of microplastics in unit processes used in water and wastewater treatment: a review
This review evaluates various water and wastewater treatment technologies for their ability to remove microplastics, including filtration, coagulation, and advanced oxidation methods. The authors found that while conventional treatment plants can remove a large percentage of microplastics, significant quantities still pass through into treated water. The study calls for combining multiple treatment steps and developing new technologies specifically designed to capture micro- and nanoplastic particles.
Collaborative removal of microplastics, bacteria, antibiotic resistance genes, and heavy metals in a full-scale wastewater treatment plant
Researchers tracked how a full-scale wastewater treatment plant in China simultaneously removes microplastics, bacteria, antibiotic resistance genes, and heavy metals, finding that while the plant removed over 80% of incoming microplastics, those that remained in the effluent were associated with elevated levels of antibiotic resistance genes and heavy metals. Microplastics appeared to serve as carriers that concentrate and co-transport these co-contaminants through treatment processes. This raises important concerns: even "clean" treated wastewater discharged into rivers may carry microplastics loaded with antibiotic-resistant bacteria and toxic metals.
Synergistic Pollution: Interactions Among Polyethylene, Surfactants, and Antibiotics in an Aquatic Environment
Researchers investigated synergistic pollution effects among polyethylene microplastics, surfactants, and antibiotics in aquatic systems, finding that co-presence enhanced the environmental persistence and bioavailability of antibiotics beyond what microplastics or surfactants caused individually.
Removal of microplastics from wastewater through electrocoagulation-electroflotation and membrane filtration processes
Researchers investigated electrocoagulation-electroflotation and membrane filtration for removing microplastics from wastewater, finding that combining these processes effectively recovers microplastic particles from treatment plant effluent.