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Papers
17 resultsShowing papers similar to Development of a Routine Screening Method for the Microplastic Mass Content in a Wastewater Treatment Plant Effluent
ClearWastewater treatment plants as a pathway for microplastics: Development of a new approach to sample wastewater-based microplastics
Researchers developed a new sampling and monitoring protocol for microplastics at wastewater treatment plants, enabling more consistent tracking of microplastic loads through treatment stages and discharged effluent.
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.
Validation of Sample Preparation Methods for Microplastic Analysis in Wastewater Matrices—Reproducibility and Standardization
Sample preparation methods for microplastic analysis in wastewater were validated against reference standards to assess recovery rates and reproducibility. The validation study identified methods that reliably extract microplastics from complex wastewater matrices, supporting more consistent environmental monitoring of microplastic discharge from 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.
Evaluation of the Presence of Microplastics in Wastewater Treatment Plants: Development and Verification of Strategies for Their Quantification and Removal in Aqueous Streams
Researchers evaluated microplastic presence in wastewater treatment plants and developed a pilot capture system capable of detecting, quantifying, and removing microplastic particles from water. The study found that conventional treatment processes are insufficient for complete microplastic removal, highlighting the need for dedicated technologies to address this gap in water treatment infrastructure.
Occurrence and fate of microplastics from wastewater treatment plants assessed by a fluorescence-based protocol
A fluorescence-based protocol was developed to identify and quantify microplastics smaller than 500 micrometers in wastewater treatment plant effluent, improving on traditional methods that miss these smaller particles.
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.
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.
Microplastic pollution is widely detected in US municipal wastewater treatment plant effluent
Researchers conducted a wide survey of US municipal wastewater treatment plants and found microplastics widely present in effluent, confirming that conventional treatment does not fully remove microplastics and that treatment plants are ongoing sources of environmental contamination.
Identification and quantification of microplastics in wastewater treatment plant effluent: Investigation of the fate and biological effects
This study identified and quantified microplastics in wastewater treatment plant effluents and sludge, finding particles in all samples with fibers being the dominant type. The research contributes to understanding how much microplastic reaches surface waters via wastewater discharge and how much is captured in sludge that is subsequently applied to agricultural land.
Method development for microplastic analysis in wastewater
This book chapter describes methods developed to detect and measure microplastics in wastewater samples, addressing the lack of standardized analytical protocols. Reliable detection methods are essential because wastewater treatment plants are a major pathway through which land-based microplastics enter aquatic environments.
Improved methodology to determine the fate and transport of microplastics in a secondary wastewater treatment plant
An improved methodology was applied to track the fate and transport of microplastics through a wastewater treatment plant, measuring particle size, shape, and polymer type at multiple treatment stages. The study found that while most microplastics are removed during primary and secondary treatment, smaller particles persist into the effluent and sludge.
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.
Long-Term Monitoring of Microplastics in a German Municipal Wastewater Treatment Plant
Researchers conducted long-term monitoring of microplastics in a German municipal wastewater treatment plant, tracking seasonal and annual changes in influent and effluent concentrations and assessing the plant's overall plastic retention efficiency.
Assessing the Mass Concentration of Microplastics and Nanoplastics in Wastewater Treatment Plants by Pyrolysis Gas Chromatography–Mass Spectrometry
Researchers used pyrolysis gas chromatography-mass spectrometry to measure the mass concentration of both microplastics and nanoplastics at different stages of wastewater treatment. They found that treatment plants removed over 93% of microplastics and nanoplastics by mass, but measurable amounts still remained in treated effluent. The study provides important data on nanoplastic levels in wastewater, which have been largely unmeasured due to limitations of previous detection methods.
Determining an optimized laboratory procedure to extract microplastics from wastewater treatment plant effluents using the acid-washing process
This study developed and optimized an acid-washing protocol for extracting microplastics from wastewater treatment plant effluents. An efficient extraction method is essential for accurately measuring the microplastics that wastewater plants fail to fully remove before releasing treated water into the environment.
How can we trace microplastics in wastewater treatment plants: A review of the current knowledge on their analysis approaches
This review critically evaluates the analytical methods used to detect microplastics in wastewater treatment plants, covering sampling strategies, extraction and purification procedures, and identification techniques including spectroscopy. The authors highlight a lack of standardized methods as the primary challenge limiting accurate and comparable measurements across studies.