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61,005 resultsShowing papers similar to Application of Water Hyacinth Biomass (Eichhornia crassipes) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study
ClearCan Microplastics Accumulate Toxic dye in Water? An adsorption-desorption Study under Different Experimental Conditions
Researchers investigated the adsorption and desorption of the toxic dye Rhodamine B on polystyrene, polypropylene, and polyvinyl chloride microplastics under different experimental conditions. Results showed fast and substantial adsorption of the dye onto all three plastic types, with adsorption coefficients ranging from approximately 1,500 to 2,000, indicating microplastics can act as carriers of toxic dyes in aquatic environments.
First Evidence of Microplastic in the Roots of Eichhornia Crassipes (mart.) Solms (1883) at the Delmiro Gouveia Paulo Afonso Reservoir – Ba - Submedio São Francisco
This Brazilian study is the first to document microplastics in the roots of water hyacinth (Eichhornia crassipes) in the Sao Francisco River basin, finding 211 microplastic particles in root samples across multiple collection months. Fibers were the dominant type in both plant roots and water samples, highlighting the plant's role in accumulating suspended microplastics.
Tracing and trapping micro- and nanoplastics: Untapped mitigation potential of aquatic plants?
Researchers used fluorescently labeled polystyrene particles to trace microplastic and nanoplastic uptake in three aquatic plant species, finding that nanoplastics concentrated primarily in roots via apoplastic transport with bioconcentration factors up to 306, suggesting floating plants like water hyacinth may be useful for removing plastic from contaminated water.
Microplastic Pollution in Surface Waters and Sediments of Urban Lake
This book chapter reviews microplastic pollution in urban lake surface waters and sediments, describing sources, distribution patterns, and the ecological consequences of MP accumulation in these widely used but understudied freshwater habitats.
Proposal of Invader Pontederia crassipes as a Savior of Micro and Macro Size Plastic Pollution
This study was the first to evaluate microplastic and macroplastic capture potential of the invasive water hyacinth, finding 3,691 particles in the roots of 12 specimens, with fragments dominating. The results suggest this widely distributed invasive plant may passively accumulate plastic particles from aquatic environments.
Adsorption of different types of microplastic particles by macrophytes of Lake Baikal
Researchers experimentally investigated the adsorption of different microplastic particle types by submerged macrophyte species from Lake Baikal, finding that macrophytes can accumulate microplastics on their surfaces with implications for aquatic plant health and associated ecological communities in this unique ecosystem.
Competition adsorption of malachite green and rhodamine B on polyethylene and polyvinyl chloride microplastics in aqueous environment
Researchers examined the competitive adsorption of two organic dyes, malachite green and rhodamine B, onto polyethylene and polyvinyl chloride microplastics in water, finding that both microplastic types preferentially adsorb malachite green and that competitive effects depend on initial dye concentrations.
Recent advances in dyes uptake by microplastics in aquatic environments: Influencing factors and ecotoxicological behaviors
This review examined how microplastics in water environments can absorb and carry dye pollutants, effectively acting as transport vehicles for these contaminants. Researchers found that environmental factors like water salinity, pH, and temperature, as well as the physical properties of the microplastics themselves, all influence how much dye they can absorb, which has implications for understanding combined pollution risks in aquatic systems.
Adsorption of different types of microplastic particles by macrophytes of Lake Baikal
Researchers experimentally investigated the adsorption of different microplastic particle types by submerged macrophyte species from Lake Baikal, finding that macrophytes can accumulate microplastics on their surfaces with implications for aquatic plant health and associated ecological communities in this unique ecosystem.
Exploring the Interaction between Microplastics, Polycyclic Aromatic Hydrocarbons and Biofilms in Freshwater
Researchers investigated the adsorption of benzo(a)pyrene and pyrene by five microplastic types in freshwater over 3 and 30 days, finding that polypropylene was the most efficient adsorbent while polystyrene was the least efficient for benzo(a)pyrene. The study also examined how bacterial biofilms on microplastics, including pathogenic species such as Escherichia coli and Klebsiella pneumoniae, interact with PAH adsorption dynamics.
Phytoremediation of microplastics by water hyacinth
Researchers found that water hyacinth, a fast-growing floating plant, can remove 55-69% of microplastics from contaminated water within 48 hours through root adsorption. The plant's massive root surface area traps plastic particles, while a special structure in the stem prevents the plastics from reaching the leaves. This study offers a promising natural, low-cost approach to cleaning microplastics from waterways.
Adsorption of cyanotoxins on polypropylene and polyethylene terephthalate: Microplastics as vector of eight microcystin analogues
Eight microcystin analogues were tested for adsorption onto polypropylene and polyethylene terephthalate microplastics, finding that these common plastics can bind cyanotoxins from freshwater environments. The study identifies microplastics as potential vectors for cyanobacterial toxins in lakes and reservoirs, with implications for drinking water safety.
Contaminated microplastics: adsorption/desorption of Rhodamine B and phase separation by electrocoagulation-flotation
Researchers studied the adsorption and desorption behavior of Rhodamine B dye onto microplastics under varying conditions, finding that contaminated microplastics can accumulate and later release dye pollutants in aquatic environments. The results contribute to understanding how microplastics serve as carriers for organic contaminants.
The removal of methylene blue from aqueous solutions by polyethylene microplastics: Modeling batch adsorption using random forest regression
This study found that polyethylene microplastics can effectively absorb methylene blue dye from water, demonstrating that microplastics act as sponges for other pollutants in the environment. The microplastics could be reused for dye removal across multiple cycles, confirming their strong binding capacity. While this property could theoretically be useful for water cleanup, it also means that microplastics in the environment absorb and carry toxic chemicals, which can then be released inside the body when microplastics are ingested.
Research status and prospects of microplastic pollution in lakes
This review systematically covers microplastic pollution research in lakes, including sampling and identification methods, distribution patterns, ecological effects, and knowledge gaps, identifying lakes as important but understudied sinks for microplastic contamination.
Microplastics in river water: occurrence, weathering, and adsorption behaviour
Researchers examined microplastics in river water, characterizing their occurrence, degree of weathering, and capacity to adsorb co-contaminants. The study highlights microplastics as vectors that can transport and re-release other pollutants in freshwater systems.
Sequestration of microfibers and other microplastics by green algae, Cladophora, in the US Great Lakes
Researchers found that the macrophytic green alga Cladophora in the Great Lakes sequesters synthetic microfibers at high rates, suggesting that submerged aquatic vegetation serves as an important sink for textile-derived plastic particles in freshwater systems.
Microplastic pollution in lakes: Sources, impact, and solutions
This review comprehensively covers the sources, pathways, ecological impacts, and remediation strategies for microplastic pollution in freshwater lakes, highlighting how particles from urban runoff, wastewater, and atmospheric deposition accumulate in lake ecosystems and transfer into food webs.
[Characterization of Microplastic Pollution of Sediments from Urban Lakes].
Sediments from urban lakes in Maanshan City, China contained microplastics in both spring and summer, with fragments and fibers as the most common types. Local industrial and domestic activities were identified as the likely sources, adding to evidence of widespread microplastic contamination in freshwater sediments.
A critical review of microplastics and nanoplastics in wastewater: Insights into adsorbent-based remediation strategies
This review analyzes research on removing microplastics and nanoplastics from water using materials that absorb the particles, finding that adsorption is the most widely studied removal method. Carbon-based and metal-based materials currently dominate the research, but plant-based (biopolymer) adsorbents are gaining attention because they are biodegradable and non-toxic. Better removal technologies are critical because conventional water treatment often fails to capture the smallest plastic particles that pose the greatest risk to human health.
Insight into the absorption and migration of polystyrene nanoplastics in Eichhornia crassipes and related photosynthetic responses
Researchers studied how water hyacinth plants absorb and transport polystyrene nanoplastics of different sizes. Smaller nanoplastics (20 nm) penetrated deeper into root tissue and migrated to leaves, while larger ones (200 nm) mostly stayed in the roots. Both sizes impaired photosynthesis, suggesting that nanoplastic pollution in waterways can harm aquatic plants that play important roles in water purification.
Degradation and adsorption behavior of biodegradable plastic PLA under conventional weathering conditions
Researchers characterized microplastic pollution in the surface water of the Mekong River across multiple countries, finding the highest concentrations near urban centers in Vietnam and Cambodia. Fibers and fragments were most common, with polyester and polypropylene dominating.
Spatial and temporal distribution characteristics of microplastics in surface water of typical shallow lake in the middle and lower reaches of Yangtze River: A case study of Lake Baoan, Hubei Province
A seasonal sampling campaign at Lake Baoan, a shallow Yangtze River basin lake in China, found an average microplastic abundance of about 16 particles per litre in surface water, with fibers making up 40% of particles and polyethylene the dominant polymer. Microplastic concentrations peaked in winter and were lowest in summer, but showed no significant correlation with conventional water-quality indicators — suggesting that standard water-quality monitoring will miss microplastic contamination.
Micro Plastic Pollution in Freshwater Ecosystems: Sources, Fate and Effects
This review addresses microplastic pollution in freshwater ecosystems, examining sources including synthetic textile washing microfibers and cosmetic microbeads, and the secondary fragmentation of larger plastic debris. The authors assess the fate of particles in rivers and lakes, their effects on aquatic organisms, and the adequacy of current management approaches.