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61,005 resultsShowing papers similar to Removal of Nano-Zinc Oxide (nZnO) from Simulated Waters by C/F/S—Focusing on the Role of Synthetic Coating, Organic Ligand, and Solution Chemistry
ClearRemoval of nanoparticles (both inorganic nanoparticles and nanoplastics) in drinking water treatment – coagulation/flocculation/sedimentation, and sand/granular activated carbon filtration
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.
Adsorption of Lead from Effluents Using Synthesized ZnO Nanoparticles: A Comprehensive Study for Wastewater Treatment
This paper is not about microplastics — it evaluates synthesized zinc oxide nanoparticles as an adsorbent for removing lead from contaminated water, addressing heavy metal pollution in wastewater treatment.
Coagulation of TiO2, CeO2 nanoparticles, and polystyrene nanoplastics in bottled mineral and surface waters. Effect of water properties, coagulant type, and dosage
Polyaluminum chloride was more effective than iron chloride at coagulating TiO2, CeO2 nanoparticles, and polystyrene nanoplastics in drinking water sources, requiring lower doses to achieve particle removal. Nanoplastics were harder to coagulate than metal oxide nanoparticles, indicating that current water treatment practices may inadequately remove plastic nanoparticles from drinking water.
Review of Advanced Water Treatment for Removal of Nanoplastic Pollution
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.
Treatment processes for microplastics and nanoplastics in waters: State-of-the-art review
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.
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.
From Mineral Salts to Smart Hybrids: Coagulation–Flocculation at the Nexus of Water, Energy, and Resources – A Critical Review
A review traced innovations in coagulation-flocculation-sedimentation treatment from simple mineral salts to advanced hybrid nanomaterial additives for water purification. These advances are relevant to improving the efficiency of removing microplastics during conventional water treatment.
Laboratory and Commercial Synthesized Zinc Oxide Nanoparticles Adsorption onto Coconut Husk: Characterization, Isotherm, Kinetic, and Thermodynamic Studies
Researchers investigated the adsorption of laboratory-synthesized and commercial zinc oxide nanoparticles onto raw coconut husk, conducting batch adsorption studies and characterizing samples by XRD, FESEM, and spectroscopic techniques to evaluate coconut husk as a biosorbent for ZnO-NP removal from water.
Natural-based coagulants/flocculants for microplastics and nanoplastics removal via coagulation–flocculation: a systematic review
This systematic review evaluates how natural plant-based materials can be used to remove microplastics and nanoplastics from water through coagulation and flocculation processes. The findings show that these sustainable, nature-derived alternatives can effectively capture plastic particles during water treatment, offering a greener approach to reducing microplastic contamination in our drinking water.
Removal efficiency and adsorption mechanisms of CeO2 nanoparticles onto granular activated carbon used in drinking water treatment plants
Researchers investigated how well granular activated carbon (GAC), commonly used in drinking water treatment, can remove cerium oxide nanoparticles. The study found that GAC achieved removal efficiencies of up to 75% in natural lake water, with adsorption driven primarily by electrostatic attraction and enhanced by the presence of divalent cations and natural organic matter.
Strategies for determining heteroaggregation attachment efficiencies of engineered nanoparticles in aquatic environments
Researchers developed strategies for determining heteroaggregation attachment efficiencies of engineered nanoparticles with suspended particulate matter in aquatic environments, providing a practical roadmap for understanding nanoparticle fate in natural water systems.
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.
From Mineral Salts to Smart Hybrids: Coagulation–Flocculation at the Nexus of Water, Energy, and Resources—A Critical Review
This review traces six decades of coagulation-flocculation water treatment research, covering the evolution from simple inorganic aluminum and iron salts to hybrid biosourced and polymer coagulants, comparing their efficiency for removing turbidity, organic matter, and micropollutants.
Towards a better understanding of CeO2 manufactured nanoparticles adsorption onto sand grains used in drinking water treatment plants
Researchers studied how cerium dioxide (CeO2) nanoparticles — used in industry and increasingly found in waterways — stick to the sand filters used in drinking water treatment plants. They found that under acidic conditions, electrostatic attraction pulls the nanoparticles onto sand surfaces, but under realistic lake-water conditions, natural organic matter causes them to clump and settle instead, limiting how well the filters remove them.
Multiple roles of dissolved organic matter on typical engineered nanomaterials: environmental behaviors, pollutants removal and potential risks
This review examines how dissolved organic matter in natural water interacts with engineered nanomaterials, influencing their environmental behavior, pollutant removal capacity, and potential ecological risks in aquatic systems.
Recent advances in microplastic removal from drinking water by coagulation: Removal mechanisms and influencing factors
A meta-analysis and random forest model found that coagulation can effectively remove microplastics from drinking water, with particle shape being the most important factor affecting removal efficiency, followed by coagulant type and dosage. Charge neutralization is the dominant mechanism for small microplastics, while adsorption bridging and sweeping work better for larger particles.
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.
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.
Retention of ZnO nanoparticles onto polypropylene and polystyrene microplastics: Aging-associated interactions and the role of aqueous chemistry
Researchers investigated how zinc oxide nanoparticles attach to polypropylene and polystyrene microplastics under different water chemistry conditions. They found that UV-aged microplastics retained significantly more nanoparticles than fresh ones, and water pH and natural organic matter influenced the interaction. The study suggests that weathered microplastics in the environment are more effective at carrying metal contaminants, potentially increasing ecological risks.
Microplastic removal by coagulation/flocculation: A review and bibliometric analysis
This review of existing research found that a common water treatment method called coagulation (where chemicals help clump particles together so they can be removed) works well at filtering out microplastics from drinking water and wastewater. The treatment is especially good at removing larger microplastic pieces, but struggles with the tiniest ones under 10 micrometers. This matters because microplastics are showing up everywhere in our water supply, and this research suggests we already have proven technology that could help reduce our exposure to these plastic particles.
A comparative study on the stability and coagulation removal of aged vs. nonaged nanoplastics in surface water
Researchers used palladium-doped nanoplastics as tracers to compare how environmentally aged and pristine nanoplastics behave during water treatment coagulation. They found that ozone-aged nanoplastics developed more oxygen-containing surface groups, making them harder to remove through conventional coagulation, while solar-aged particles showed mainly physical changes. The study suggests that current drinking water treatment processes may be less effective at removing aged nanoplastics than fresh ones.
Sustainable coagulative removal of microplastic from aquatic systems: recent progress and outlook
This review examines how natural coagulants from plants, animals, and microbes can be used to remove microplastics from water as a greener alternative to conventional chemical treatments. These bio-based coagulants, especially when combined with nanotechnology, show promising removal rates while avoiding the toxic residues left by traditional chemical approaches.
Removal of natural organic matter from surface water sources by nanofiltration and surface engineering membranes for fouling mitigation – A review
Researchers reviewed how nanofiltration membranes can remove natural organic matter — a key source of toxic disinfection byproducts — from drinking water, and assessed how surface engineering can reduce membrane clogging (fouling). They found that membranes modified with zwitterionic polymers show the most promise for maintaining clean, effective water treatment over time.
Developments in the Application of Nanomaterials for Water Treatment and Their Impact on the Environment
This review covers the application of nanomaterials for water treatment and remediation, evaluating how nanomaterial properties enable removal of pollutants including heavy metals, organic contaminants, and microplastics. It surveys the current state of research and discusses practical challenges for scaling up nanomaterial-based water treatment.