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61,005 resultsShowing papers similar to The factors affecting bacterial colonisation on microplastics and the impact of tertiary treatment of wastewater on the attached bacteria and microplastics
ClearThe 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.
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.
Determinants of microbial colonization on microplastics through wastewater treatment processes: The role of polymer type and sequential treatment
This study examined how polymer type (HDPE vs. PET) and sequential versus individual deployment at each wastewater treatment stage affect microbial colonization on microplastics. The stage of wastewater treatment was found to profoundly influence the bacterial communities colonizing microplastic surfaces.
Growth and prevalence of antibiotic-resistant bacteria in microplastic biofilm from wastewater treatment plant effluents
Researchers studied antibiotic-resistant bacteria growing in biofilms on microplastic surfaces in wastewater treatment plant effluent. The study found that microplastic biofilms accumulated antibiotic-resistant bacteria including Pseudomonas, Aeromonas, and Bacillus, and that these biofilms harbored higher concentrations of resistance genes compared to surrounding water, suggesting microplastics may serve as reservoirs for antibiotic resistance.
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.
Early and differential bacterial colonization on microplastics deployed into the effluents of wastewater treatment plants
Researchers deployed seven types of microplastic materials into the effluents of two wastewater treatment plants and characterised bacterial communities colonising them after an early biofilm formation period using 16S rRNA sequencing. They found significantly higher bacterial diversity on microplastics than in the surrounding free-living water, and detected elevated antibiotic resistance genes (sulI, tetM) on microplastic surfaces, suggesting that WWTP effluents seed microplastics with pathogen- and resistance gene-carrying biofilms.
Characterization of microplastics and their interaction with antibiotics in wastewater
Researchers characterized microplastics in wastewater and investigated their interactions with antibiotics, examining how microplastic surfaces adsorb antibiotic compounds and the implications for antibiotic transport and dissemination in wastewater treatment systems.
Biofilm formation on microplastics in wastewater: insights into factors, diversity and inactivation strategies
This study investigated how bacteria form biofilms on different types of microplastics in wastewater, finding that polyethylene supported the most biofilm growth, especially in dark, warm, oxygen-rich conditions. The biofilms contained bacteria from groups that include potential human pathogens, and different plastic types supported different microbial communities. This matters because microplastics coated in bacterial biofilms could transport harmful microorganisms through water systems and into the environment.
Colonization characteristics and surface effects of microplastic biofilms: Implications for environmental behavior of typical pollutants
This review examines how bacteria colonize microplastic surfaces in water, forming biofilms that change how the plastics behave in the environment. These biofilms alter the surface properties of microplastics and affect how they absorb and transport heavy metals and other pollutants. Understanding biofilm formation on microplastics is important because it can make the particles more dangerous by concentrating toxic substances that could eventually enter the food chain.
Tracking the Evolution of Microbial Communities on Microplastics through a Wastewater Treatment Process: Insight into the “Plastisphere”
Researchers tracked how bacterial communities form and evolve on polystyrene microplastics as they pass through primary, secondary, and tertiary stages of wastewater treatment. They found that biofilms on the microplastics harbored greater bacterial diversity than surrounding water, with certain pioneer species facilitating further microbial colonization. The study reveals that bacteria attached to microplastics become more resistant to treatment processes than free-floating bacteria, raising concerns about microplastics as carriers of potentially harmful microbes in treated effluent.
Contribution of microplastic particles to the spread of resistances and pathogenic bacteria in treated wastewaters
Researchers studied microplastic particles collected from treated wastewater effluents and found that MPs harbored significantly higher loads of antibiotic resistance genes and pathogenic bacteria compared to surrounding water, suggesting MPs facilitate their environmental spread.
Dataset of paper "Growth and prevalence of antibiotic-resistant bacteria in microplastic biofilm from wastewater treatment plant effluents"
This is a dataset accompanying a study on antibiotic-resistant bacteria in biofilms growing on microplastics in wastewater treatment plant effluents. The data include DNA sequencing results showing which bacterial species colonize plastic surfaces in treated wastewater.
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.
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.
Microplastic biofilm, associated pathogen and antimicrobial resistance dynamics through a wastewater treatment process incorporating a constructed wetland
This study tracked how microplastic-associated biofilms, pathogens, and antibiotic resistance genes changed through a wastewater treatment process that included a constructed wetland. While the treatment reduced some pathogens, certain antibiotic resistance genes persisted on microplastic surfaces even after treatment. This means microplastics leaving treatment plants could carry drug-resistant bacteria into rivers and lakes, potentially affecting downstream drinking water sources.
Analysis of the potential role of microplastics as transporters of microorganisms in activated sludge
Researchers investigated whether microplastic microbeads present in wastewater can support microbial biofilm formation and facilitate the spread of microorganisms in activated sludge treatment systems. Microplastics from multiple polymer types readily hosted biofilm development, with bacterial communities differing between plastic types, suggesting microplastics can serve as microbial vectors in wastewater treatment.
Dataset of paper "Growth and prevalence of antibiotic-resistant bacteria in microplastic biofilm from wastewater treatment plant effluents"
This is a duplicate dataset entry for the study on antibiotic-resistant bacteria in microplastic biofilms in wastewater treatment plant effluents. The data document microbial communities on plastic surfaces that could transport drug-resistant bacteria into receiving waterways.
Assessment of Emerging Pathogens and Antibiotic Resistance Genes in the Biofilm of Microplastics Incubated Under a Wastewater Discharge Simulation
Researchers incubated common plastic types in flowing water that simulated wastewater discharge conditions for 10 weeks and studied the bacteria that colonized the plastic surfaces. They found that microplastics exposed to treated wastewater developed distinct bacterial communities compared to those in clean river water, including emerging pathogens and antibiotic resistance genes. The study suggests that microplastics in waterways receiving wastewater may serve as mobile platforms for spreading harmful bacteria and antibiotic resistance in the environment.
Microplastic biofilms in water treatment systems: Fate and risks of pathogenic bacteria, antibiotic-resistant bacteria, and antibiotic resistance genes
This review examines how microplastics in drinking water and wastewater treatment plants develop biofilms that harbor dangerous bacteria and antibiotic resistance genes. The biofilm-coated microplastics can protect pathogens from disinfection processes, allowing them to survive treatment and potentially reach tap water. This raises concerns about microplastics serving as vehicles for antibiotic-resistant bacteria in our water supply.
Wastewater treatment alters microbial colonization of microplastics released to the environment
This study found that the type of microbes colonizing microplastics changes significantly after they pass through wastewater treatment, with treated microplastics carrying a different and potentially less harmful microbial community. Understanding how treatment affects the 'plastisphere' is important for assessing the ecological risk of microplastics released into waterways.
Microplastic-associated biofilms in wastewater treatment plants: Mechanisms and impacts
This review examines how microplastics in wastewater treatment plants develop biofilms that fundamentally change the particles' behavior and environmental impact. Researchers found that biofilm formation on microplastics creates a paradox: it improves their removal by helping them settle faster, but the biofilms also serve as reservoirs for antibiotic-resistant bacteria and pathogens. The findings highlight the need for treatment plant operators to consider biological transformations of microplastics, not just their physical removal.
Microplastics shape microbial interactions and affect the dissemination of antibiotic resistance genes in different full-scale wastewater treatment plants
A study of three full-scale wastewater treatment plants found that microplastics were associated with increased spread of antibiotic resistance genes (ARGs), with microplastic surfaces appearing to facilitate microbial interactions that promote ARG transfer. This is a significant public health concern because wastewater plants that fail to fully remove microplastics may also be inadvertently accelerating the dissemination of antibiotic resistance into receiving waterways.
Microplastics in wastewater treatment plant: Characterization of changes, influencing factors, and their impact on the spatial distribution of pathogenic bacteria
Researchers investigated the relationship between microplastics and pathogenic bacteria throughout a wastewater treatment plant, finding significant correlations between microplastic abundance and populations of potential pathogens including Pseudomonas, Staphylococcus, and Acinetobacter. Fibers and fragments were the dominant microplastic shapes, primarily polyethylene and polypropylene in the 0.5-1 mm size range. The study also found that microplastics influence microbial aerosolization during treatment, suggesting they may play a role in spreading airborne bacteria from wastewater facilities.
Do microplastics promote the attachment of antimicrobial resistant pathogens?
Researchers examined whether microplastics promote the attachment and persistence of antimicrobial resistant (AMR) pathogens, finding that microplastics in aquatic environments frequently co-occur with AMR bacteria and antimicrobial residues, and may facilitate the spread of resistant pathogens.