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61,005 resultsShowing papers similar to [Whole Process Analysis and Fate Behavior of Microplastics in Urban Wastewater Treatment Plants, Including their Occurrence Forms, Components, and Removal Efficiency].
ClearEffects of different treatment processes in four municipal wastewater treatment plants on the transport and fate of microplastics
Researchers investigated microplastic transport and fate across four municipal wastewater treatment plants in southeastern China, finding that different treatment processes varied in their microplastic removal efficiency, with fibers and fragments as the dominant types.
[Characterization of Microplastic Removal Rate Variation in the Whole Process of Urban Wastewater Plant with Conventional Oxidation Ditch Process].
Researchers characterized microplastic removal rates across each treatment stage of an urban wastewater treatment plant in Handan, northern China, using a conventional oxidation ditch process, finding that WWTPs are major conduits for MPs entering natural water bodies and identifying which treatment steps achieve the greatest removal.
Occurrence and Characteristics of Microplastics in a Wastewater Treatment Plant
Researchers sampled the inflow, outflow, and sludge of a Chinese wastewater treatment plant, finding up to 44 microplastic particles per liter in incoming water — mostly polyester fibers. The plant removed about 96% of microplastics, but the remaining fraction was still discharged into receiving waterways.
Abundance and removal characteristics of microplastics at a wastewater treatment plant in Zhengzhou
Researchers investigated microplastic abundance and removal efficiency across treatment stages at a wastewater treatment plant in Zhengzhou, China, sampling sewage at each processing section to track migration and fate of microplastics. The study characterized removal rates and identified which treatment stages were most effective at capturing microplastic contaminants.
Influence of wastewater treatment process on pollution characteristics and fate of microplastics
Researchers investigated microplastic abundance and removal efficiency across four wastewater treatment plants using different treatment technologies, finding influent concentrations between 539 and 1,290 particles per liter that were reduced substantially by primary and secondary treatment. Smaller microplastic particles proved hardest to remove and most likely to persist in final effluent.
Distribution characteristics of microplastics in wastewater treatment plants in mega cities–the case study of Chengdu City
Researchers studied microplastic distribution and removal across wastewater treatment plant processes in China, finding that WWTPs intercept large quantities of MPs before discharge but that residual concentrations in effluent still represent a significant pathway for environmental MP release.
Where do they go? A review of the wastewater treatment process and its impact on the fate of microplastics
This review examines the fate of microplastics across the physical, chemical, and biological stages of wastewater treatment plant (WWTP) processes, finding that WWTPs act as both sources and destinations for microplastics while not being designed to remove them, and surveying new removal strategies.
Effectiveness of conventional municipal wastewater treatment plants in microplastics removal: Insights from multiple analytical techniques
Researchers evaluated the effectiveness of conventional municipal wastewater treatment plants in removing microplastics across multiple treatment stages, finding removal efficiencies of 70–90% but documenting that billions of particles still pass through in final effluent daily.
The Pollution Characteristics and Fate of Microplastics in Typical Wastewater Treatment Systems in Northern China
Researchers analyzed microplastic contamination at two wastewater treatment plants in Zhengzhou, China, finding overall removal efficiencies of about 93 and 96 percent respectively. Fibers and fragments were the most common microplastic shapes detected, with much of the removed material ending up concentrated in sewage sludge. The study raises concerns that while treatment processes are effective at reducing waterborne microplastics, the contaminated sludge may redistribute the pollution when applied to agricultural land.
Spatiotemporal Distribution Characteristics and Removal Efficiency of Microplastics in a Wastewater Treatment Plant
Researchers examined microplastic removal efficiency across three seasons at a wastewater treatment plant in Zhengzhou, China, sampling influent, process effluent, and final effluent. They found an overall removal efficiency of 86%, with polypropylene and polyethylene terephthalate as the dominant polymer types and fragment- and granule-shaped particles comprising over 80% of microplastics detected.
Occurrence and Removal of Microplastics in Tertiary Wastewater Treatment Plants: A Case Study of Three Plants in Zhengzhou, China
Researchers studied microplastic occurrence and removal efficiency at three wastewater treatment plants in Zhengzhou, China. The study found influent concentrations ranging from 147 to 289 particles per liter, with removal efficiencies between 76% and 91%, indicating that while treatment plants significantly reduce microplastic levels, substantial quantities still pass through to receiving waters.
Transport and fate of microplastic particles in wastewater treatment plants
Researchers tracked microplastic particles through multiple stages of a wastewater treatment plant, finding that particles were concentrated in sludge but that a fraction passed through each treatment stage and remained in the final effluent.
[Advances in the Separation and Removal of Microplastics in Water Treatment Processes].
This review analyzed the distribution of microplastics across major Chinese water ecosystems and evaluated how particles of different colors, sizes, shapes, and materials behave through water treatment processes. Results showed that conventional treatment achieves variable removal efficiency depending on particle characteristics, with smaller particles and fibers posing the greatest challenge to complete removal.
Fate and occurrence of microplastics in wastewater treatment plants
This review summarizes recent research on the abundance and removal of microplastics in wastewater treatment plants, examining how different treatment stages capture or release microplastic particles and assessing the overall efficiency of current infrastructure.
[Removal of Microplastics by Different Treatment Processes in Shanghai Large Municipal Wastewater Treatment Plants].
A study of two large wastewater treatment plants in Shanghai found that microplastic concentrations in incoming sewage were very high, and overall removal efficiency ranged from 63% to 90% depending on treatment processes. Even with high removal rates, large volumes of microplastics are still discharged to waterways daily.
Characteristics and removal efficiency of microplastics in sewage treatment plant of Xi'an City, northwest China
Researchers systematically tracked microplastic transport, characteristics, and removal through both the sewage and sludge treatment streams of a Chinese wastewater treatment plant. The study found that while most microplastics were removed from effluent, substantial quantities accumulated in sludge.
Occurrence Characterization and Contamination Risk Evaluation of Microplastics in Hefei’s Urban Wastewater Treatment Plant
Researchers characterized microplastic contamination at various stages of a wastewater treatment plant in Hefei, China, under both dry and rainy weather conditions. They found that while the treatment process removed a significant portion of microplastics, notable amounts still passed into the effluent, with rain increasing contamination levels. The study provides a detailed assessment of how effectively current wastewater treatment technology handles microplastic pollution.
Nano and microplastics occurrence in wastewater treatment plants: A comprehensive understanding of microplastics fragmentation and their removal
This review provides a comprehensive look at how nano- and microplastics move through wastewater treatment plants, from entry to discharge. Researchers examined how larger plastic particles fragment into smaller nano-sized pieces during treatment processes and evaluated which treatment stages are most effective at removing them. The study finds that while conventional treatment removes most microplastics, significant quantities of nanoplastics may still pass through into waterways.
Study of occurrence, abundance, and characterization of microplastics in wastewater treatment plant in New Delhi, India
Researchers quantified microplastic prevalence in influent, treated effluent, and sludge from a wastewater treatment plant in New Delhi, finding that MPs are present throughout the treatment process and that the plant incompletely removes them, discharging MPs into receiving waters.
A study on characteristics of microplastic in wastewater of South Korea: Identification, quantification, and fate of microplastics during treatment process
Microplastics were tracked through three South Korean wastewater treatment plants with different tertiary treatment methods, finding 75–92% removal by primary and secondary treatment and over 98% removal after tertiary treatment. The study confirms that advanced treatment steps are necessary to approach near-complete microplastic removal from municipal wastewater.
The fate of microplastics in wastewater treatment plants: An overview of source and remediation technologies
This review examines how wastewater treatment plants serve as key pathways for microplastic entry into the environment, analyzing removal efficiencies across different treatment stages and identifying advanced technologies for improved microplastic remediation.
Understanding microplastic presence in different wastewater treatment processes: Removal efficiency and source identification
Researchers tracked microplastic removal across different treatment stages at two wastewater treatment plants and found overall removal rates of 90% and 97%. They discovered that population density in the served area was a bigger driver of influent microplastic levels than sewage volume, and that activated sludge served as the primary trap for captured particles. The study identified laundry washing and daily consumer products as the main sources of microplastics entering the treatment plants.
Research progress on microplastics in wastewater treatment plants: A holistic review
This review provides a holistic assessment of microplastics in wastewater treatment plants, covering sampling methods, occurrence patterns across treatment stages, removal efficiencies, and the environmental risks posed by microplastic discharge through effluent and sludge.
Abundance, Characteristics, and Removal of Microplastics in Wastewater Treatment Plant located in Southwest China
Researchers investigated microplastic abundance, characteristics, and removal efficiency at a wastewater treatment plant in Leshan, Southwest China, finding influent concentrations of 267.74 particles/L reduced to 68.34 particles/L in effluent, achieving a 74.48% total removal rate, with smaller particles (0.05-0.3 mm) being the most prevalent and hardest to remove.