We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Development and Efficiency Evaluation of Microplastic Removal Filter for Laundry Machines
Summary
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.
Microplastics contained in laundry wastewater are identified as the main cause of marine microplastics, accounting for approximately 35% of marine microplastics. In this study, a four-stage microplastic filter for laundry wastewater was developed and the removal rates of microplastics, COD, SS, and turbidity were checked through 50 tests to confirm the efficiency of the filter. The microplastic removal rate was confirmed using μFTIR with a high efficiency of 98.5% on average for 50 tests. The microplastics contained in laundry wastewater were identified as 57% PE, 9% PET, 9% PA, 8% PU, 8% PP, 6% PPMA, and 3% PAN. COD was measured using the COD manganese method, and the COD removal rate of the laundry wastewater filter was an average of 92% for 50 times. SS was verified by filtration using a vacuum pump and the average removal rate was 80% during 50 tests. Turbidity was confirmed with an average removal rate of 88% using a turbidity meter. As a result of the experiment, it was confirmed that when the developed filter was installed in laundry wastewater, not only microplastics but also various water pollutants were reduced. In addition, the water quality pollution index showing the highest correlation with microplastics in laundry wastewater was SS, and the p-value was confirmed to be 0.000.
Sign in to start a discussion.
More Papers Like This
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.
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.
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.
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.
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.