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Papers
20 resultsShowing papers similar to Microbial Community in a Wastewater System
ClearAssessment of the Active Sludge Microorganisms Population During Wastewater Treatment in a Micro-Pilot Plant
Pilot-scale micro-tests assessed the composition and health of active sludge microorganism communities during wastewater treatment, providing biological and chemical characterization data applicable to industrial-scale treatment plant optimization. The study identified key parameters for monitoring microbial efficiency in treating chemically complex wastewater.
Analysis of the diversity of microbial communities in typical domestic sewage
This review examines how microbial communities in domestic sewage influence treatment efficiency, highlighting that diverse microorganisms are essential for breaking down waste and preventing polluted water from reaching natural water bodies.
Community Composition and Function of Bacteria in Activated Sludge of Municipal Wastewater Treatment Plants
Researchers analyzed the bacterial communities in activated sludge from two municipal wastewater treatment plants in Shenzhen, China, using gene sequencing. They found that Proteobacteria dominated all samples and that nutrient levels and nitrogen compounds were the primary factors shaping microbial community structure. The study provides insights into how microbial communities function during wastewater treatment, which is relevant since these systems are known to both encounter and discharge microplastics.
Fungal Diversity in Two Wastewater Treatment Plants in North Italy
Researchers characterized fungal diversity in two wastewater treatment plants in northern Italy, finding diverse communities including molds and yeasts whose composition varied with treatment stage and influent quality, suggesting fungi may play underappreciated roles in contaminant removal including potential interactions with microplastics.
A Review on Microorganisms in Constructed Wetlands for Typical Pollutant Removal: Species, Function, and Diversity
This review analyzed the community structure, diversity, and function of microorganisms in constructed wetlands for pollutant removal, examining how microbial communities drive degradation of nitrogen, phosphorus, heavy metals, and emerging contaminants.
Diversity of antibiotic resistance gene variants at subsequent stages of the wastewater treatment process revealed by a metagenomic analysis of PCR amplicons
Not relevant to microplastics — this study uses next-generation sequencing to catalog antibiotic resistance gene variants at different stages of a wastewater treatment plant, finding that some variants change in abundance through the process while novel variants are present throughout.
Selective microbial attachment to LDPE plastic beads during passage through the wastewater network
Researchers tracked how microbial communities colonize plastic beads as they travel through different stages of a wastewater treatment plant. They found that distinct bacterial communities selectively attached to the plastic surfaces at each treatment stage, differing from the microbes in the surrounding water. The study reveals that microplastics passing through wastewater systems accumulate unique microbial hitchhikers that could carry pathogens or antibiotic-resistant bacteria into the environment.
Novel bacterial lineages assembled from wastewater-impacted river metagenomes unveil ecosystem functions and risk of antibiotic resistance spread in the community
Researchers assembled novel bacterial lineages from metagenomes of wastewater-impacted river sediments, identifying previously undescribed microbial taxa with metabolic capabilities for plastic degradation and emerging contaminant breakdown.
Identification of microplastic-associated microbial communities from various stages of wastewater treatment and recipient surface waters using MALDI-TOF mass spectrometry
Researchers deployed six polymer types at different stages of wastewater treatment across three Hungarian plants and used MALDI-TOF mass spectrometry to identify the bacteria colonizing microplastic surfaces, finding distinct microbial communities that may act as vectors for antibiotic resistance.
The dangerous transporters: A study of microplastic-associated bacteria passing through municipal wastewater treatment
This study characterized bacterial communities attached to microplastics sampled from multiple stages of a municipal wastewater treatment plant, finding that diverse bacteria including potential pathogens and antibiotic-resistant strains remained attached to microplastics through all treatment steps. The results suggest microplastics could transport hazardous bacteria through wastewater treatment and into receiving environments.
Microplastics increase impact of treated wastewater on freshwater microbial community
Microplastic particles added to treated wastewater effluent amplified the impact on freshwater microbial communities compared to effluent alone, disrupting both bacterial community composition and functional processes. The study suggests that microplastics in treated wastewater discharge may compound the ecological harm caused by residual effluent contaminants on receiving water microbiology.
Toward an intensive understanding of sewer sediment prokaryotic community assembly and function
Researchers characterized prokaryotic communities in sewer sediments across multifunctional, commercial, and residential urban areas using 16S rRNA amplicon sequencing, finding significant compositional differences linked to land use and nutrient levels. Network analysis revealed the residential area harbored the most complex and stable microbial network, while stochastic processes dominated community assembly across all zones.
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.
Profiling trace organic chemical biotransformation genes, enzymes and associated bacteria in microbial model communities
This is not about microplastics — it is a wastewater microbiology study profiling the genes, enzymes, and bacterial communities responsible for breaking down trace organic chemicals (pharmaceuticals and other pollutants) during biological wastewater treatment.
The microbial community and functional indicators response to flow restoration in gradient in a simulated water flume
Researchers examined how microbial community structure and functional indicators respond to gradient flow restoration in a simulated water flume, finding that flow regime significantly influences river ecological systems including functional indicators and microbial community composition.
Microbial Diversity and Community Structure of Wastewater-Driven Microalgal Biofilms
This paper is not about microplastics; it profiles microbial communities in algal turf scrubber biofilms used for treating different wastewaters, finding that microbial composition is shaped by the wastewater type rather than the initial inoculum.
Microbial Succession on Microplastics in Wastewater Treatment Plants: Exploring the Complexities of Microplastic-Microbiome Interactions
This review examines how different microorganisms colonize microplastic surfaces in wastewater treatment plants, forming communities called biofilms that change as the treatment process progresses. These biofilms can include harmful bacteria and antibiotic-resistant organisms that ride on microplastics through the treatment process and into the environment. The findings are concerning because microplastics leaving treatment plants could carry disease-causing microbes into waterways used for drinking and recreation.
Wastewater treatment alters microbial colonization of microplastics
Analysis of microplastics and their biofilms across raw sewage, effluent, and sludge at two wastewater treatment plants found that >99% of influent MPs were retained in sludge, and that wastewater treatment substantially altered biofilm microbial composition, enriching bioflocculation-associated taxa.
Linking ecological niches to bacterial community structure and assembly in polluted urban aquatic ecosystems
Researchers examined how ecological niches shape bacterial community structure and assembly in polluted urban water ecosystems. The study found that the specific environmental conditions within different niches play a key role in determining how microbial communities respond to water pollution. These findings have implications for understanding microbial ecology and maintaining aquatic ecosystem health.
Wastewater 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.