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61,005 resultsShowing papers similar to Microplastics and nitrogenous dbps in drinking water: a complex interaction beyond adsorption
ClearMicroplastics and nitrogenous dbps in drinking water: a complex interaction beyond adsorption
Researchers examined the interaction between microplastics and nitrogenous disinfection byproducts in drinking water, investigating how plastic particles may influence the formation or toxicity of these chemical contaminants. The study found that microplastics and nitrogenous disinfection byproducts interact in ways that go beyond simple co-occurrence, potentially altering chemical risks in treated water.
Microplastics and nitrogenous disinfection byproducts in drinking water: complex interactions beyond adsorption
This study examined how microplastics in drinking water interact with nitrogenous disinfection byproducts (DBPs)—among the most toxic disinfection products—beyond simple adsorption. Researchers found that microplastics can modify DBP formation during water chlorination and alter their bioavailability, complicating risk assessment for treated drinking water containing both microplastics and disinfection byproducts.
Effects of microplastics on DBPs formation under the chlorination of natural organic matters
Researchers investigated how microplastics affect disinfection byproduct formation during chlorination of natural organic matter in water treatment, finding that the presence of microplastics can influence the generation of potentially harmful DBPs.
Mechanistic insight into the role of typical microplastics in chlorination disinfection: Precursors and adsorbents of both MP-DOM and DBPs
Chlorination of polypropylene and polystyrene microplastics released dissolved organic matter that formed disinfection by-products, with PS-MPs being more susceptible to chlorination; the study found that even small MPs in drinking water can contribute to DBP precursor loads during treatment.
Effects of microplastics on water disinfection and formation of disinfection by-products
This review examines how the presence of microplastics in drinking water and wastewater interferes with chlorination and ozonation disinfection processes, potentially reducing their effectiveness and generating harmful disinfection by-products. Microplastics can leach dissolved organic carbon that reacts with disinfectants, and they serve as refuges for antibiotic-resistant bacteria that may survive standard treatment. The authors call for more realistic laboratory experiments and field studies to properly assess the real-world risks that microplastics pose inside water treatment plants.
Insight into the dynamic transformation properties of microplastic-derived dissolved organic matter and its contribution to the formation of chlorination disinfection by-products
Researchers studied how dissolved organic matter released from microplastics transforms under UV light and how it contributes to the formation of harmful disinfection byproducts during water chlorination. They found that UV exposure changed the chemical composition of the microplastic-derived organic matter, affecting its reactivity during disinfection. The findings suggest that microplastics in water sources may indirectly increase the formation of potentially harmful chemicals during standard water treatment.
Formation of disinfection by-products from microplastics, tire wear particles, and other polymer-based materials
This study investigated the formation of disinfection by-products (DBPs) during water disinfection from precursors contributed by microplastics, tire wear particles, and other polymeric materials. Results showed that polymer-derived compounds can generate a range of DBPs, raising concerns about microplastic contamination of drinking water sources.
The potential risks posed by micro-nanoplastics to the safety of disinfected drinking water
This review examines the risks that micro- and nanoplastics pose to the safety of disinfected drinking water. Researchers found that common disinfection processes like ozone, chlorine, and UV treatment can actually make plastics more harmful by promoting leaching of organic compounds and generating disinfection byproducts. The study suggests that enhanced treatment technologies such as advanced coagulation, membrane filtration, and improved detection methods are needed to effectively remove these contaminants and prevent secondary hazards.
Overlooked risks of photoaging of nitrogenous microplastics with natural organic matter in water: Augmenting the formation of nitrogenous disinfection by-products
Researchers discovered that when nitrogen-containing microplastics like polyamide undergo photoaging in the presence of natural organic matter, they produce significantly elevated levels of harmful nitrogenous disinfection byproducts in water. The dominant byproduct, NDMA, reached concentrations exceeding WHO guidelines at 202 ng/L. The study proposes a new theoretical framework explaining how interactions between aging microplastics and natural organic matter create previously overlooked water treatment risks.
Leaching of organic matters and formation of disinfection by-product as a result of presence of microplastics in natural freshwaters
Researchers found that microplastics leach dissolved organic carbon into freshwater, and when combined with chlorine disinfection, this leached material promotes the formation of disinfection byproducts like chloroform in drinking water treatment.
Formation mechanisms of carcinogenic N-nitrosamines from dissolved organic matter derived from nitrogen-containing microplastics during chloramine disinfection
Researchers investigated how dissolved organic matter in water facilitates the formation of carcinogenic N-nitrosamines during chlorination, finding that microplastic-associated organic compounds contributed to nitrosamine precursor pools in treatment scenarios.
Physicochemical changes in microplastics and formation of DBPs under ozonation
Researchers examined physicochemical changes in thermoplastic polyurethane and polyethylene microplastics during ozonation water treatment, finding that the process can alter microplastic morphology and potentially generate disinfection byproducts.
Impact of non-aged and UV-aged microplastics on the formation of halogenated disinfection byproducts during chlorination of drinking water and its mechanism
Researchers investigated how both new and UV-aged microplastics affect the formation of halogenated disinfection byproducts during chlorine treatment of drinking water. They found that non-aged microplastics reduced byproduct formation by adsorbing organic precursors, while UV-aged microplastics had a much smaller reduction effect because they release organic compounds that offset adsorption. The study reveals that environmental aging of microplastics changes their impact on drinking water treatment chemistry in important ways.
Towards microplastics contribution for membrane biofouling and disinfection by-products precursors: The effect on microbes
Researchers found that microplastics in raw water increased microbial growth and altered community composition during ultrafiltration, promoting extracellular polymer production that accelerated membrane fouling and elevated disinfection by-product formation in treated water.
Microplastics release precursors of chlorinated and brominated disinfection byproducts in water
Researchers investigated whether microplastics leach chemical additives that serve as precursors for chlorinated and brominated disinfection byproducts when exposed to hydrolysis and simulated sunlight, testing seventeen microplastics across seven polymer types and finding that this previously unrecognized pathway poses potential risks to drinking water quality.
Potential disinfection byproducts-related risks to drinking water? Molecular insights into the dissolved organic matter from photodegradation of polyethylene microplastics
This study analyzed the dissolved organic matter released during photodegradation of polyethylene microplastics, finding that sunlight exposure generates complex organic compounds that could act as precursors to disinfection byproducts in drinking water treatment. The results highlight an underappreciated pathway by which microplastics may affect drinking water safety.
Leaching of organic matter from microplastics and its role in disinfection by-product formation
Researchers found that microplastics leach organic matter into water that subsequently acts as a precursor for disinfection by-products during chlorination, with polystyrene MPs generating the most leachate and producing the most by-products compared to polyethylene MPs.
Modifications of ultraviolet irradiation and chlorination on microplastics: Effect of sterilization pattern
Researchers found that both UV irradiation and chlorination used in drinking water treatment alter the surface properties, size distribution, and chemical composition of microplastics, with combined treatments producing greater modifications and potentially increasing the release of plastic additives and adsorbed contaminants.
Effects of UV light on physicochemical changes in thermoplastic polyurethanes: Mechanism and disinfection byproduct formation
Researchers examined how UV light exposure changes the properties of thermoplastic polyurethane microplastics in water and whether those changes affect the formation of harmful disinfection byproducts during water chlorination. They found that UV exposure broke the plastic into smaller fragments and released soluble chemicals that significantly increased byproduct formation after chlorination. The findings suggest that aging microplastics in water systems could contribute to the creation of potentially harmful chemicals during standard water treatment.
UV aging of microplastic polymers promotes their chemical transformation and byproduct formation upon chlorination
Researchers studied how UV aging of different microplastic polymers affects their behavior during water chlorination treatment. They found that UV aging significantly increased the reactivity of polyamide and polyester microplastics, promoting the release of harmful organic compounds and the formation of disinfection byproducts by more than 10-fold. The study reveals that weathered microplastics in drinking water systems may generate more toxic byproducts during standard chlorination than their pristine counterparts.
The fate of microplastics and organic matter leaching behavior during chlorination
Researchers studied how chlorination affects polystyrene and polyethylene microplastics and the organic matter they release, finding that chlorination promoted organic carbon leaching from microplastics at about 0.3 to 0.5 parts per thousand of the plastic mass. The leached organic matter showed significant potential to form trihalomethane and haloacetonitrile disinfection byproducts, raising concerns about chlorinated microplastics in drinking water systems.
Impact and microbial mechanism of continuous nanoplastics exposure on the urban wastewater treatment process
Researchers investigated the effects of continuous nanoplastic exposure on wastewater treatment over 200 days, finding that while total nitrogen removal was not significantly inhibited, nanoplastics altered microbial community composition and affected nitrification and denitrification processes.
The Influence of Some Physicochemical Parameters of Surface Waters on the Formation of Trihalomethanes During the Drinking Water Treatment Process
Despite its title referencing trihalomethanes in drinking water treatment, this paper studies disinfection byproducts formed during water chlorination — not microplastic pollution. It examines how water temperature, organic carbon content, and pH affect the formation of potentially carcinogenic chemical compounds in tap water in Romania and is not relevant to microplastics.
Insight into the effect of UVC-based advanced oxidation processes on the interaction of typical microplastics and their derived disinfection byproducts during disinfection
Scientists found that UV-based water treatment processes, while intended to clean drinking water, caused microplastics to release more organic matter and form more disinfection byproducts during chlorination. Up to 42% of the toxic byproducts formed were absorbed back onto the microplastic surfaces, creating contaminated particles. This concerning finding suggests that some common water treatment methods could unintentionally make microplastic contamination in drinking water more hazardous.