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61,005 resultsShowing papers similar to Removal of Microplastics from Laundry Wastewater Using Coagulation and Membrane Combination: A Laboratory-Scale Study
ClearIdentification, removal of microplastics and surfactants from laundry wastewater using electrocoagulation method
Laundry wastewater from a 2 kg synthetic fabric load released up to 114,300 microfibers per wash, and an electrocoagulation treatment removed roughly 98% of those fibers along with surfactants and organic load in about 25 minutes at a cost of US$0.53 per cubic meter. The results highlight both how significant laundry is as a microplastic source and that electrocoagulation is a cost-effective option for treating it before wastewater reaches natural waterways.
Development and Efficiency Evaluation of Microplastic Removal Filter for Laundry Machines
Researchers developed a four-stage filter for laundry machines designed to capture microplastics released during washing. Over 50 tests, the filter achieved an average microplastic removal rate of 98.5%, along with 92% removal of chemical oxygen demand. The most common microplastics in laundry wastewater were polyethylene (57%), followed by PET and nylon, highlighting both the scale of laundry-related microplastic pollution and the effectiveness of filtration solutions.
Reuse of Water in Laundry Applications with Micro- and Ultrafiltration Ceramic Membrane
Microfiltration and ultrafiltration ceramic membranes were compared for the treatment of laundry wastewater containing microfibers, with both membranes achieving high microfiber removal while the ultrafiltration membrane provided better water quality for reuse. The study supports ceramic membrane filtration as an effective approach to capturing textile microplastics at the point of washing.
Are we overestimate the contribution of microplastics from industrial laundry? Microplastic exploration in an industrial laundry: Quantification and elimination
Researchers investigated microplastic contributions from an industrial laundry in Sweden and tested two filtration technologies for removal. Both drum filtration and ultrafiltration achieved over 90% microplastic removal efficiency by mass, with polyester and smaller fragments being the most prevalent particles. However, a mass balance analysis revealed that local town wastewater contributed even more microplastics than the industrial laundry, suggesting that the contribution from industrial laundries may be overestimated.
Efficient Filtration Systems for Microplastic Elimination in Wastewater
Synthetic microfibers and microplastic particles released during industrial laundry processes are a significant but under-addressed source of water pollution. This study designed a three-stage textile cascade filter system capable of capturing microplastic particles down to 1.5 micrometers from laundry wastewater, achieving high removal efficiency using progressively finer polypropylene filter media. The approach offers a practical engineering solution for reducing microplastic discharge from commercial laundries before it reaches waterways.
Evaluation of MiniPlast Filters for Microplastic Removal from Laundry Wastewater
Researchers evaluated MiniPlast in-washing machine filters for capturing synthetic microfibers released during laundry cycles, finding that the filters significantly reduced microplastic emissions in wastewater and could serve as a practical household intervention for reducing microfiber pollution.
Removal of Microfiber from Laundry Wastewater Using the Electrocoagulation Method
Researchers investigated microfiber release from laundry wastewater and found a reference load of 2.5 L of synthetic textiles released approximately 92,700-114,300 synthetic microfibers. Electrocoagulation treatment at neutral pH, 25-minute operating time, and 300 A/m² current density achieved 97.9% microfiber removal efficiency at a treatment cost of US$0.53/m³.
Effect of coagulation on microfibers in laundry wastewater
Researchers tested ferric chloride and polyaluminium chloride (PACl) as coagulants for removing synthetic microfibers from laundry wastewater, finding that surfactants in detergent reduced removal efficiency from up to 96% to 0-37%. Adding PACl restored removal to above 90%, with optimal PACl concentrations dependent on detergent concentration, suggesting coagulant addition is critical for effective microfiber removal from laundry effluent.
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.
Microplastics in wastewater treatment plants of Wuhan, Central China: Abundance, removal, and potential source in household wastewater
Two wastewater treatment plants in Wuhan, China, removed 62-66% of incoming microplastics, and household sources including clothing laundering, facial cleansers, and toothpaste were identified as dominant contributors. Washing one kilogram of clothing released over 150,000 fibers, making laundry the largest single household microplastic source.
Direct filtration of microfibre-containing wastewater using nanofibre membranes: combined effects of mode of filtration and type of microfibre
Scientists tested how tiny plastic fibers from clothes and textiles affect water treatment systems that remove these pollutants from wastewater. They found that different types of plastic fibers either help or hurt the cleaning process depending on the material and how the water flows through filters. This research is important because it could help improve systems that remove microplastics from our water supply before they reach rivers, oceans, and potentially our drinking water.
Removal of Microplastics/Microfibers and Detergents from Laundry Wastewater by Microbubble Flotation
Researchers developed a microbubble flotation system that removes over 98% of microplastics and 95% of detergent surfactants from laundry wastewater. The study successfully scaled the approach from bench-level to a pilot-scale column over 5 meters tall, demonstrating a practical, cost-effective solution for treating one of the largest sources of microplastic pollution entering waterways.
Improvement of a microfiber filter for domestic washing machines
Researchers improved a microfiber filter designed for domestic washing machines to more effectively capture synthetic microfibers and microplastics released during laundry cycles, testing filter performance across different fabric types and washing conditions. The enhanced filter design achieved higher capture rates of microfibers compared to existing solutions, representing a practical household-level intervention to reduce microplastic emissions to wastewater.
Microplastics in Wastewater by Washing Polyester Fabrics
Researchers investigated microplastic fiber release from polyester fabrics during washing, characterizing the quantity and types of microplastics generated and their potential pathway into wastewater systems as a significant source of environmental microplastic pollution.
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.
The significant impacts of laundry wastewater on microplastics: a case study in a residential area
Researchers measured microplastic concentrations in laundry wastewater from a residential area and tracked their contribution to urban drainage, finding that laundry effluent is a significant and underestimated source of microfibers entering municipal sewer systems and subsequently rivers.
Microplastics_Removal
Researchers evaluated the efficiency of a microplastic removal system for synthetic wastewater that combines a chemical treatment process with simple filtration, measuring removal performance across different microplastic types and concentrations.
Transport and retention of laundry microplastic fibres in slow sand filtration systems
Slow sand filtration — one of the most energy-efficient water treatment methods — was tested for its ability to remove laundry-derived microplastic fibers from washing machine effluent, with results showing 92–95% removal at the lowest flow rate tested. Fine sand filters slightly outperformed coarse sand, and the top layer of the filter did most of the work. Given that laundry wastewater is a major source of microplastic fiber pollution entering waterways, these results support slow sand filtration as a practical, low-cost add-on treatment to prevent fiber release.
An evaluation of microplastics fate in the wastewater treatment plants: frequency and removal of microplastics by microfiltration membrane
This study assessed microplastic removal efficiency at a wastewater treatment plant in Iran and tested microfiltration membrane performance, finding that the membrane significantly improved microplastic removal beyond conventional treatment steps.
Membrane fouling characteristics and mechanisms in coagulation-ultrafiltration process for treating microplastic-containing water
This study investigated how microplastics affect membrane fouling during a common water treatment process that combines coagulation with ultrafiltration. Researchers found that while microplastics initially worsen membrane fouling, adding the right amount of coagulant can actually turn the plastics into an advantage by creating a looser filter cake that improves water flow.
Evaluation of Using Sequential Electrocoagulation and Chemical Coagulation for Urea Removal from Synthetic and Domestic Wastewater
Not relevant to microplastics — this study evaluates electrocoagulation and chemical coagulation techniques for removing urea from wastewater to prevent eutrophication, with no focus on plastic pollution.
Wastewater Treatment Approaches to Remove Microplastics
This review summarizes current approaches for removing microplastics from wastewater, noting that treatment plants capture many particles but are not fully effective — particularly for small fibers from laundry. Improving wastewater treatment efficiency is a key strategy for reducing the microplastic loads entering rivers and oceans.
A Janus branch filter for washing machines: Simultaneous removal of microplastics and surfactants
Engineers developed a Janus-membrane branch filter for washing machines that simultaneously removes microplastics (capturing 78–89% of dreg by weight) and surfactants from laundry wastewater in a single step. This is a promising household-scale solution to one of the largest sources of microplastic release into waterways, since synthetic textiles shed enormous quantities of plastic fibers with every wash.
The impact of a large textile laundry facility on the overall influx of microplastics and their removal in two wastewater treatment plants in the Netherlands
Researchers measured microplastic contributions from a large industrial textile laundry facility and found it accounted for 13% of the total microplastic load entering a nearby wastewater treatment plant. Encouragingly, the treatment plants removed over 99.8% of microplastics larger than 50 micrometers, suggesting that targeting major point-source emitters like laundries could be an efficient strategy for reducing plastic pollution.