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61,005 resultsShowing papers similar to Pretreatment methods for the isolation of microplastics from wastewater and sludge samples: Part 1
ClearPretreatment methods for the isolation of microplastics from wastewater and sludge samples Part 2
This article reviews pretreatment methods for isolating microplastics from wastewater and sludge samples, examining digestion, density separation, and filtration approaches to optimize sample preparation for downstream identification and quantification.
Effects of chemical pretreatments on microplastic extraction in sewage sludge and their physicochemical characteristics
This study evaluated different chemical pretreatment methods for extracting microplastics from sewage sludge, finding that some treatments can alter the physical and chemical properties of plastic particles in ways that affect identification. Choosing the right extraction method is important for accurately characterizing microplastic contamination in biosolids.
Microplastics in wastewaters: Pretreatment to detection trail
This review examines how microplastics enter and move through wastewater treatment systems, from their origins to detection methods. Researchers analyzed the relationship between the physical and thermal properties of microplastics and the pretreatment techniques used to separate them from organic matter for analysis. The study highlights the urgent need for standardized sampling and analysis protocols to enable consistent comparisons of microplastic contamination across different wastewater treatment facilities.
Microplastic isolation method for wastewater and sludge samples by removal of excess organic and inorganic interferences
Researchers developed an improved microplastic isolation method for wastewater and sludge samples that removes extracellular polymeric substances (EPS) interfering with detection. The optimized protocol improves the accuracy and reliability of microplastic quantification in complex environmental matrices.
Remediation of wastewater polluted with microplastics
This Croatian review covers techniques for removing microplastics from wastewater, summarizing the biogeochemical cycle of microplastics and their identification methods in wastewater treatment plants. The review notes that treatment plants are a significant source of microplastic release to the environment.
Validation of Sample Preparation Methods for Microplastic Analysis in Wastewater Matrices—Reproducibility and Standardization
Sample preparation methods for microplastic analysis in wastewater were validated against reference standards to assess recovery rates and reproducibility. The validation study identified methods that reliably extract microplastics from complex wastewater matrices, supporting more consistent environmental monitoring of microplastic discharge from treatment plants.
A review of methods for the isolation of microplastics in municipal wastewater treatment
This review summarizes methods used to isolate and quantify microplastics from municipal wastewater treatment plants, identifying inconsistencies in sampling and analysis protocols that make it difficult to compare results across studies.
Microplastics Removal from Municipal Wastewater Through Oxide-Biological Processes. Phase 1: Preliminary Fragmentation of Microplastics from Wastewater and Aerobic Pre-conditioning of Wastewater with Activated Sludge
Researchers tested a combined treatment approach for removing microplastics from municipal wastewater, involving mechanical fragmentation followed by biological treatment with activated sludge. The preliminary results suggest that oxidative pre-treatment can reduce microplastic particle size, potentially making them more amenable to biological breakdown in wastewater systems.
Enrichment of microplastics from drinking water treatment sludge
Researchers investigated the enrichment and concentration of microplastics in drinking water treatment sludge, building on prior evidence that treatment processes remove up to 93% of microplastics from source water and thereby accumulate them in sludge byproducts. The study developed and evaluated methods for isolating and characterizing microplastics from this underexplored but potentially significant secondary pollution reservoir.
A novel method for organic matter removal from samples containing microplastics
Researchers developed a novel organic matter removal method for wastewater treatment plant sludge samples containing microplastics, demonstrating that the approach is more time- and cost-effective than existing techniques while preserving microplastic integrity for accurate quantification and identification.
Extraction and analytical methods of microplastics in wastewater treatment plants: Isolation patterns, quantification, and size characterization techniques
This review summarizes the different methods scientists use to find, measure, and identify microplastics in wastewater treatment plants. It found 12 distinct sample processing approaches and three categories of analytical techniques currently in use, but no single standardized method exists. The lack of consistent methods makes it hard to compare results across studies and fully understand how much microplastic enters the environment through treated wastewater.
Microplastics in seawater: a study of pretreatment, separation, and recovery.
Researchers developed and compared pretreatment, separation, and recovery methods for isolating microplastics from seawater samples, addressing the methodological diversity that limits comparability across marine monitoring studies. The study identified optimal combinations of techniques that improve microplastic recovery efficiency while minimizing contamination and sample loss.
Microplastics in seawater: a study of pretreatment, separation, and recovery.
Researchers developed and compared pretreatment, separation, and recovery methods for extracting microplastics from seawater samples, evaluating each step for efficiency and contamination risk. The optimized workflow improved particle recovery and reduced matrix interference, supporting more accurate seawater microplastic quantification.
Sampling, pre-treatment, and identification methods of microplastics in sewage sludge and their effects in agricultural soils: a review
This review examines methods for sampling, pre-treating, and identifying microplastics in sewage sludge, which accumulates microplastics removed during wastewater treatment. Researchers found that standardized protocols for sludge analysis are still lacking, making it difficult to compare results across studies. The study also highlights that when microplastic-laden sludge is applied to agricultural soils, it may introduce persistent plastic contamination into terrestrial ecosystems.
Combined application of analytical techniques for microplastic determination to achieve comprehensive results for sewage sludge samples
Researchers combined multiple analytical techniques for comprehensive microplastic determination in sewage sludge samples, addressing the challenge that more than 90% of microplastics entering wastewater treatment plants are retained in sludge and require robust multi-method characterization.
Research progress on microplastics in wastewater treatment plants: A holistic review
This review provides a holistic assessment of microplastics in wastewater treatment plants, covering sampling methods, occurrence patterns across treatment stages, removal efficiencies, and the environmental risks posed by microplastic discharge through effluent and sludge.
Microplastics extraction from wastewater treatment plants: Two-step digestion pre-treatment and application
Researchers developed an optimized two-step digestion method for extracting microplastics from wastewater treatment plant samples, achieving high recovery rates especially in organic-rich matrices like sludge, and applied it across multiple treatment stages.
Wastewater treatment plant as microplastics release source – Quantification and identification techniques
This review examines wastewater treatment plants as sources of microplastic release into the environment, along with current methods for separating and identifying these particles. While conventional treatment plants remove over 90% of incoming microplastics, they remain major point sources due to the enormous volumes of effluent they discharge. The review also highlights that over 80% of microplastics entering treatment plants become trapped in sewage sludge, which when used as agricultural fertilizer represents a potential pathway for soil contamination.
Combined application of analytical techniques for microplastic determination to achieve comprehensive results for sewage sludge samples
Researchers applied a combination of complementary analytical techniques to achieve comprehensive microplastic characterization in sewage sludge samples, addressing the limitations of using single methods for such complex matrices. They found that more than 90% of microplastics entering wastewater treatment plants are retained in the resulting sludge, and that combining analytical approaches improved detection across size ranges and polymer types.
The Emerging of Microplastic and Nanoplastic as Pollutants and their Characterization and Analysis
This review presents an integrated approach to sampling, sample preparation, and analytical methods for detecting microplastics and nanoplastics in solid and aqueous environmental samples, discussing current challenges and emerging methodologies for more accurate characterization.
Enrichment of microplastics from drinking water treatment sludge
Researchers developed an enrichment protocol to concentrate and recover microplastics from drinking water treatment sludge, where up to 93% of influent microplastics are captured during treatment but where analysis of the resulting sludge has remained methodologically challenging. The study established extraction and detection procedures to quantify microplastics in this concentrated waste matrix, enabling better characterisation of the fate of removed particles.
Microplastics in sewage sludge: Distribution, toxicity, identification methods, and engineered technologies
This review examines how microplastics accumulate in sewage sludge from wastewater treatment plants, which then becomes a major pathway for spreading these particles into the environment. Researchers found that sludge can contain extremely high concentrations of microplastics, ranging from thousands to hundreds of thousands of particles per kilogram. The study evaluates current detection methods and emerging technologies for removing microplastics from sludge before it is applied to agricultural land or disposed of.
Mikroplastik - Źródła, Techniki Separacji I Identyfikacji
This review (in Polish) covers microplastics — their sources in the environment and the analytical techniques used to separate and identify them. The paper provides an overview of sampling, extraction, and spectroscopic identification methods relevant to environmental monitoring of microplastic pollution.
Optimization of a method used for extracting microplastics from an organic matter-rich matrix and isolated particles assessment
Researchers optimized a method for extracting microplastics from sewage sludge — a challenging organic-rich matrix — by combining density separation and chemical digestion steps, improving recovery rates and enabling more accurate characterization of sludge-associated microplastics.