Quantitative analysis of plasticizers in a wastewater treatment plant: influence of the suspended solids parameter

The main objective of present study was the quantitative analysis of bisphenol A (BPA) in soil and leachate of a municipal sanitary landfill. The influence of the solvent polarity and pH over the quantitative analysis of BPA in the leachate was also investigated. The soil samples were collected from closed cells and extracted by Soxhlet extraction with ethanol. The liquid samples, from row leachate from the same sanitary landfill were extracted by Solid Phase Extraction (SPE) with C-18 cartridges and ethanol. The organic extracts from liquid and solid samples were analyzed by Gas Chromatography with Flame Ionization Detector (GC/FID). For the soil and liquid samples the average concentrations of BPA were 21.30 (±0.61) µg kg −1 and 26.83 (±2.69) µg L −1 , respectively. These results were far above the ones cited in the literature and are of special concern because BPA may disrupt the human endocrine system. The acidification allows the increase of 5% of the extraction efficiency. In this way, the acidification step is recommended for the quantification of BPA in samples where the concentration of this analyte is below 0.1%. In these cases the acidification step may avoid important loss of the analyte and improve the detection limit in the instrumental analysis.

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“…The methods of sample's collection and analysis were adapted from previous studies published by our research group [22], [23].…”

Section: Methodsmentioning

confidence: 99%

Occurrence of Bisphenol A in soil and leachate of a municipal landfill: effect of the sample acidification

et al. 2014

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“…DEP is often found in formulations of medicines, perfumes, nail polishes, shampoos, toys and other consuming goods (Gómez-Hens & Aguilar-Caballos, 2003;Viecelli et al, 2011). Phthalates are of great concern today due to their intensive utilization, especially for the purpose of increasing the flexibility and strength of plastic packaging; however phthalates are not chemically bound to the packaging plastic, which facilitates the release from the plastic into aqueous matrices (Farajzadeh & Mogaddam, 2012a;Farajzadeh & Mogaddam, 2012b).…”

Section: Application In Real Samplesmentioning

confidence: 99%

“…4NP is a byproduct from the biological degradation of alkylphenol polyethoxylates, widely used as nonionic surfactants in household cleaning products (Moreira et al, 2011;De Araujo, Bauerfeldt & Cid, 2017). DEP is a synthetic substance used as an ingredient in cosmetic formulation and to increase the flexibility of plastic materials used in the manufacture of toys, household items, auto parts and others (Viecelli et al, 2011;Farajzadeh & Mogaddam, 2012a;Farajzadeh & Mogaddam, 2012b). BPA is a degradation product of some polymers, such as polycarbonates and epoxide resins, and is used as an antioxidant in polyvinyl chloride (PVC) plastics (Chen et al, 2011;Doerge et al, 2011;Bomfim et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Development and validation of an analytical method for detection and quantification of benzophenone, bisphenol A, diethyl phthalate and 4-nonylphenol by UPLC-MS/MS in surface water

Araujo

Bauerfeldt

Marques

et al. 2020

PeerJ Analytical Chemistry

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Guandu River is the main water source for 9 million inhabitants in Rio de Janeiro city and some others included in the metropolitan region of the Rio de Janeiro State, Brazil. Here, the development of a chromatographic method and its application to assess the occurrence of 4-nonylphenol (4NP), benzophenone (BP), bisphenol A (BPA) and diethyl-phthalate (DEP), known as endocrine disruptors (EDs), is reported. Sample were prepared by solid phase extraction (SPE) with C18 cartridge and methanol as elution solvent. Validation of analytical method followed the United States Environmental Protection Agency protocol (USEPA 8000D guide) and selectivity, matrix effect, linearity, precision, accuracy, robustness, limit of detection (LOD) and limit of quantification (LOQ) were evaluated. The recovery was greater than 90%, accuracy was found between 80% and 115% and relative standard deviation (RSD) below 11.03%. LOQ ranged from 10.0 to 50.0 ng L−1, while the LOD ranged from 0.87 to 5.72 ng L−1. The coefficients of determination (R2) were greater than 0.99 for all compounds within a linear ranges of 10.0 to 500 ng L−1 for 4NP and BP and 50.0 to 500 ng L−1 for BPA and DEP. The method was therefore considered selective and robust for all micropollutants. Matrix effect was observed for BP, 4NP and DEP. The developed method was applied to analyze five samples collected monthly during 2018 at a selected sampling point of a river in Rio de Janeiro State. The maximum concentrations found for BPA, BP, DEP and 4NP were 182.04, 286.20, 2.56×103 and 13.48 ng L−1 respectively. These values are high enough to justify an investigation on the presence of these micropollutants in drinking water as well as to extend the monitoring for the search of similar pollutants and their metabolites.

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“…Therefore, BPA is frequently found in plastic bottles, food cans, containers, composite dental fillings and adhesives . This compound is not readily biodegradable with common biological methods requiring lengthy treatments; thus, BPA can persist in the environment causing superficial and groundwater contamination. Effective treatments are needed to prevent negative effects on human health and the environment.…”

Section: Introductionmentioning

confidence: 99%

Kinetic analysis and biodegradability of the Fenton mineralization of bisphenol A

Rivero

Alonso

Dominguez

et al. 2014

J of Chemical Tech & Biotech

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BACKGROUND: This work reports the kinetic and biodegradability analysis of bisphenol A (BPA) Fenton oxidation. An experimental study was carried out within the variables H 2 O 2 /Fe (II)/BPA in the range 10/3/1 to 50/3/1 and at temperatures of 25-70 ∘ C. Kinetics of the environmental parameters dissolved organic carbon (DOC) and chemical oxygen demand (COD) were analysed. RESULTS: The concentration of H 2 O 2 and the temperature have a strong influence on the kinetics of Fenton mineralization of BPA.Working at 70 ∘ C, the measured DOC values matched that calculated using the measured organic acids, which demonstrates that the oxidation reactions proceeded at a sufficient rate to form organic acids. Moreover, as BPA solutions are not easily biodegradable, the biodegradability of the solution during Fenton oxidation was studied by means of respirometry assays, evaluating the short-term biochemical oxygen demand (BOD st )/COD ratio. CONCLUSIONS: The kinetic models proposed are capable of predicting the rate of H 2 O 2 consumption and the oxidation of DOC and COD as a function of the temperature. Under the process conditions tested the treated effluents increased their biodegradability, facilitating compatibility with further biological treatment.

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Quantitative analysis of plasticizers in a wastewater treatment plant: influence of the suspended solids parameter

Cited by 10 publications

References 22 publications

Occurrence of Bisphenol A in soil and leachate of a municipal landfill: effect of the sample acidification

Occurrence of Bisphenol A in soil and leachate of a municipal landfill: effect of the sample acidification

Development and validation of an analytical method for detection and quantification of benzophenone, bisphenol A, diethyl phthalate and 4-nonylphenol by UPLC-MS/MS in surface water

Kinetic analysis and biodegradability of the Fenton mineralization of bisphenol A

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