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Efecto de microplásticos y nanoplásticos sobre el funcionamiento de reactores biológicos de tratamiento de aguas residuales
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Researchers reviewed evidence on how microplastics and nanoplastics entering wastewater treatment plants can disrupt biological reactor processes, impair bacterial reproduction, and reduce treatment efficiency and effluent quality, summarizing findings published since 2016.
A partir de los años 50 los productos fabricados con plástico se han desarrollado rápidamente y sus desechos se están convirtiendo en un problema cada vez más difícil de gestionar En la última década la presencia de microplásticos y nanoplásticos en el medioambiente ha ido en aumento, generando una gran preocupación Los MPs y NPs de hecho, no pueden ser reabsorbidos por el medioambiente lo que conlleva a que tienden a acumularse, causando efectos dañinos en los ecosistema s En el 2016 algunos científicos comenzaron a catalogar los microplásticos que llegaban a las EDAR y años posteriores comenzó el estudio de cómo estos polímeros puede n impact ar en los diferentes procesos de las EDAR, reduciendo su eficiencia y la calidad de las aguas. Diversos estudios han evidenciado que los MPs y NPs podrían afectar la reproducción de las bacterias y algunos procesos realizados por estas El presente trabajo pretende organizar y resumir los result ados obtenidos hasta ahora de los efectos generados por los MPs y NPs en los reactores biológicos de las EDAR
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Effect of microplastics and nanoplastics on the operation of biological wastewater treatment reactors
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This review examines the effects of microplastics and nanoplastics on the performance of biological wastewater treatment reactors, focusing on how their hydrophobicity enables adsorption of microorganisms and pollutants. Researchers found that wastewater treatment plants are primary emitters of micro- and nanoplastics to aquatic ecosystems, while the particles also disrupt microbial communities within treatment systems.
Importancia de las plantas de tratamiento de aguas residuales (EDAR) como receptoras y fuente (efluentes tratados y fangos) de micropartículas plásticas
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Researchers sampled four wastewater treatment plants in the Murcia region of Spain over two years, finding that conventional activated sludge processes achieved the highest microplastic removal efficiency (90.3%), while plants using only primary and secondary treatment discharged more microplastics in effluent, with fibers being the most common morphotype and low-density polyethylene and polypropylene the dominant polymers.
Effects of microplastics accumulation on performance of membrane bioreactor for wastewater treatment
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Researchers simulated the long-term accumulation of polypropylene microplastics in membrane bioreactors used for wastewater treatment. They found that while microplastic accumulation did not reduce the removal of key pollutants like COD and ammonia nitrogen, it did increase membrane fouling and alter the composition of microbial communities in the reactor. The study suggests that microplastic buildup in wastewater treatment systems may affect operational efficiency over time.
Effects of typical emerging pollutants on biological treatment systems: processes, mechanisms, and recovery strategies
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This review paper summarizes existing research on how nanomaterials, microplastics, and certain fluorinated chemicals affect wastewater treatment systems that rely on microorganisms. It covers how these pollutants move through such systems, how they affect microbial communities and activity, and strategies for helping systems recover.
Microplastics in granular sequencing batch reactors: Effects on pollutant removal dynamics and the microbial community
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Researchers investigated how polyethylene and polyethylene terephthalate microplastics affect pollutant removal in granular sludge wastewater treatment reactors. They found that microplastic type and concentration influenced nitrogen, phosphorus, and organic compound removal rates, with PET particles showing a stronger tendency to accumulate within the biomass. The study indicates that microplastic contamination in wastewater treatment systems may compromise treatment efficiency and alter microbial community dynamics.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.