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20 resultsShowing papers similar to The Influence of Some Physicochemical Parameters of Surface Waters on the Formation of Trihalomethanes During the Drinking Water Treatment Process
ClearEffects 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.
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.
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 of source water quality on total organic carbon and trihalomethane removal efficiency in a water treatment plant: A case study of Upper Awash, Ethiopia
This study examined how source water quality affects the ability of a treatment plant in Ethiopia to remove organic carbon and reduce harmful byproducts called trihalomethanes. The researchers found that higher levels of metals and turbidity in the source water reduced treatment effectiveness. While not directly about microplastics, the findings are relevant because microplastics in source water can also carry organic pollutants and interfere with water treatment processes, compounding the challenge of providing safe drinking water.
Characteristics of microplastic polymer-derived dissolved organic matter and its potential as a disinfection byproduct precursor
UV irradiation caused polypropylene and polyethylene microplastics to leach dissolved organic matter into water, producing low-molecular-weight compounds that could react with chlorine during water treatment to form trihalomethanes, a known class of disinfection byproducts and carcinogens. The findings suggest that microplastics in source water could be a previously unrecognized precursor to harmful disinfection byproducts.
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.
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.
Unveiling the optical and molecular characteristics of aging microplastics derived dissolved organic matter transformed by UV/chlor(am)ine oxidation and its potential for disinfection byproducts formation
Researchers studied how UV light and common water disinfection chemicals break down microplastics in water and found that different treatment methods produce different types of dissolved organic matter from the plastic. Some treatment combinations, particularly UV with chlorine, created byproducts that could form harmful disinfection byproducts when water is later chlorinated. This is important because it means water treatment processes might unintentionally create new toxic compounds from the microplastics already present in water.
Impact of Chlorine or UV/H2O2 on Microplastics Under Conditions Representative of Drinking Water Treatment
Researchers exposed low- and high-density polyethylene microplastics to chlorine and UV/H2O2 at drinking-water-relevant doses and found that surface changes and cytotoxicity increases reported in earlier studies occurred only at far higher doses than used in practice.
The aging and pollution behavior of microplastics in tap water supply system subjected to residual chlorine exposure
Researchers studied how residual chlorine in tap water distribution systems ages ABS and polycarbonate microplastics, finding that chlorine exposure caused surface changes and increased hydrophilicity of the particles. The aging microplastics released dissolved organic matter into the water and, when interacting with chlorine, produced trichloromethane, a disinfection byproduct. The findings suggest that microplastics in drinking water infrastructure may contribute to the formation of harmful chemical byproducts.
Impact of chlorine and UV/H2O2 on microplastics in drinking water
Using chlorine and UV/hydrogen peroxide at dosages realistic for actual drinking water treatment plants, this study assessed whether standard disinfection processes alter microplastics in tap water. The work addresses a critical public health question — whether the water treatment people rely on to make tap water safe actually removes or changes the microplastics that have been detected in treated drinking water.
Disinfection impacts: Effects of different disinfection treatments on common polymer types to guide the identification of polymers of concern in the water industry
Researchers tested how common water disinfection methods, including chlorination and chloramination, affect seven types of plastic particles at different doses and pH levels. They found that both treatments caused measurable physical and chemical changes to the polymers, with some plastics showing significant surface degradation and chemical alterations. The findings suggest that water treatment processes may unintentionally transform microplastics in ways that could affect their environmental behavior and potential health impacts.
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.
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.
Interactive impacts of microplastics and chlorine on biological stability and microbial community formation in stagnant water
Researchers found that microplastics in stagnant drinking water accelerated chlorine decay and promoted microbial regrowth, with microplastic-associated biofilms harboring opportunistic pathogens and shifting microbial community composition toward potentially harmful species.
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.
A Review of the Current Literature on Sources and Mitigation Strategies of Microplastics in Drinking Water
Researchers reviewed the key sources of microplastic contamination in drinking water — including plastic waste, synthetic clothing, and microbeads in personal care products — and assessed strategies for reducing exposure through improved treatment technologies and stricter regulations on plastic production. The review emphasizes that effective policy, combined with public awareness about single-use plastics, is essential for protecting drinking water quality.
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.
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.
Microplastics and nitrogenous dbps in drinking water: a complex interaction beyond adsorption
Researchers investigated interactions between microplastics and nitrogenous disinfection byproducts in drinking water, examining how plastic particles affect the formation and toxicity of these regulated chemical contaminants. The study identified complex interactions suggesting that microplastics in treated water may alter the risk profile of nitrogenous disinfection byproducts.