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Removal of nanoparticles (both inorganic nanoparticles and nanoplastics) in drinking water treatment – coagulation/flocculation/sedimentation, and sand/granular activated carbon filtration
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Researchers reviewed the removal of inorganic nanoparticles and nanoplastics during conventional drinking water treatment, finding that coagulation/flocculation/sedimentation and sand/granular activated carbon filtration can substantially reduce nanoparticle concentrations but with variable efficiency depending on particle type.
Nanoparticles, such as metallic ones like Ag, Au and TiO 2 as well as nanoplastics, are applied in or emitted by a wide variety of products or stem from degradation.
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Conventional and biological treatment for the removal of microplastics from drinking water
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Researchers examined microplastic removal by a full-scale drinking water treatment plant, finding that conventional coagulation-flocculation-filtration processes and biological filters with granular activated carbon effectively reduced microplastic concentrations in treated water.
Review of Advanced Water Treatment for Removal of Nanoplastic Pollution
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This review evaluates drinking water treatment technologies for removing nanoplastics, finding that combined coagulation, flocculation, and filtration achieves up to 99.9% removal efficiency. As nanoplastics are detected in drinking water globally and cannot be degraded in the environment or human body, identifying effective removal processes is directly relevant to protecting public health.
What have we known so far about microplastics in drinking water treatment? A timely review
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This review summarizes research on microplastic occurrence and removal in drinking water treatment, covering both laboratory and full-scale studies through August 2021. Researchers found that conventional treatment processes like coagulation-flocculation, membrane filtration, and sand filtration are generally effective at reducing microplastics in water, though results vary widely depending on conditions. The study identifies key factors influencing removal efficiency and highlights the need for further research on nanoplastics in drinking water.
Removal efficiency of micro- and nanoplastics (180 nm–125 μm) during drinking water treatment
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Researchers tested how effectively standard drinking water treatment processes remove micro- and nanoplastics ranging from 180 nanometers to 125 micrometers. They found that coagulation and sedimentation alone removed less than 2% of plastic particles, while granular filtration was far more effective, achieving 87% to nearly 100% removal depending on particle size. The study also found that biofilm formation on microplastics significantly improved their removal during coagulation treatment.
Treatment processes for microplastics and nanoplastics in waters: State-of-the-art review
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This review summarized established and emerging treatment processes for removing microplastics and nanoplastics from drinking water and wastewater, evaluating coagulation, membrane filtration, advanced oxidation, and biological treatment in terms of removal efficiency and operational feasibility.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.