Diuron

Heise, Stefan; Litz, Norbert

doi:10.1002/9783527678501.bgs2016001

Cited by 4 publications

(7 citation statements)

References 113 publications

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“…Among the species found, the most significant compounds are phthalic acid esters, widely used as plasticizers, namely, di-iso-octyl phthalate (DiOP), di-isobutyl phthalate (DiBP), dibutyl phthalate (DBP), and diethyl phthalate (DEP). These compounds are related to the presence of plastics as they are widely used during processing stages for softening, increasing flexibility, or elasticity and, thus, produced industrially in high volume . Since plasticizers are only physically bound to the matrix they are able to easily enter in the environment with volatilization identified as the major pathway for their release, and many are found ubiquitously .…”

Section: Resultsmentioning

confidence: 99%

“…These compounds are related to the presence of plastics as they are widely used during processing stages for softening, increasing flexibility, or elasticity and, thus, produced industrially in high volume . Since plasticizers are only physically bound to the matrix they are able to easily enter in the environment with volatilization identified as the major pathway for their release, and many are found ubiquitously . They can be photodegraded in atmosphere within the first day, taking longer in an aquatic environment where they can bioconcentrate .…”

Section: Resultsmentioning

confidence: 99%

“…Since plasticizers are only physically bound to the matrix they are able to easily enter in the environment with volatilization identified as the major pathway for their release, and many are found ubiquitously . They can be photodegraded in atmosphere within the first day, taking longer in an aquatic environment where they can bioconcentrate . DEP and DBP are among priority pollutants defined by the European and United States’ Environmental Protection Agencies as they can act as endocrine disruptors .…”

Section: Resultsmentioning

confidence: 99%

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Pyrolysis and Char Characterization of Refuse-Derived Fuel Components

Silva¹,

Dias²,

Arnal

et al. 2015

Energy Fuels

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This work concentrates on the pyrolysis and char characterization of a refuse-derived fuel (RDF), produced from municipal solid waste, and five of its components, namely, nonpackaging paper, food, textile, low-density polyethylene film, LDPE, and packaging polypropylene wastes. Specifically, this work characterizes physically and chemically the materials, examines the pyrolysis and oxidation patterns of the RDF and its components using thermogravimetric analysis (TGA) and a quartz reactor (QR), respectively, evaluates the reactivity toward oxygen of selected RDF chars at 650°C in the QR, and characterizes the trace organics emission during the pyrolysis and chars oxidation in the QR by means of gas chromatography coupled with mass spectrometry. The main conclusions of this study are as follows: (1) the pyrolysis and oxidation patterns indicate the presence of low-stability organic components, lignocellulosic materials, and plastics but with the maximum rates occurring at lower temperatures than those reported in the literature; (2) the reactivity toward oxygen of chars at 650°C revealed that the food waste and the LDPE film waste chars are among the less reactive chars, while the textiles waste and the packaging PP waste chars are among the more reactive chars; the RDF char reactivity resembles mostly that of the nonpackaging paper waste char; (3) analyses of the trace organic elements released reflect the transversal contamination of the different materials that compose RDF, derived from its mixed origin. During both pyrolysis and char combustion, phthalates were the most relevant compounds encountered.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Pyrolysis and Char Characterization of Refuse-Derived Fuel Components

Silva¹,

Dias²,

Arnal

et al. 2015

Energy Fuels

View full text Add to dashboard Cite

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“…In general, phthalic acid is used to produce phthalate ester in certain industries (Graham, 1973). According to Heise and Litz (2004), phthalates ester is mainly used as additives in plastic production and is known as a plasticizer.…”

Section: Gc-ms Analysismentioning

confidence: 99%

“…The function of plasticizer in plastic production is as a mixture in order to optimize the properties of the resulting plastic obtained in term of flexibility and elasticity (Heise and Litz, 2004). Based on this result, it is strongly expected that biomass oil has great potential along with Phthalic acid, 2-ethylhexyltridecyl for future use in a bio-based plastic industry.…”

Section: Gc-ms Analysismentioning

confidence: 99%

Extraction of hydrocarbons from freshwater green microalgae (Botryococcus sp.) biomass after phycoremediation of domestic wastewater

Gani

Sunar

Matias-Peralta

et al. 2017

International Journal of Phytoremediation

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This study was undertaken to analyze the efficiency of Botryococcus sp. in the phycoremediation of domestic wastewater and to determine the variety of hydrocarbons derived from microalgal oil after phycoremediation. The study showed a significant (p < 0.05) reduction of pollutant loads of up to 93.9% chemical oxygen demand, 69.1% biochemical oxygen demand, 59.9% total nitrogen, 54.5% total organic carbon, and 36.8% phosphate. The average dry weight biomass produce was 0.1 g/L of wastewater. In addition, the dry weight biomass of Botryococcus sp. was found to contain 72.5% of crude oil. The composition analysis using Gas Chromatogram - Mass Spectrometry (GC-MS) found that phthalic acid, 2-ethylhexyltridecyl ester (CHO), contributed the highest percentage (71.6%) of the total hydrocarbon compounds to the extracted algae oil. The result of the study suggests that Botryococcus sp. can be used for effective phycoremediation, as well as to provide a sustainable hydrocarbon source as a value-added chemical for the bio-based plastic industry.

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Gas Chromatography-Mass Spectrometric Study of Low-Molecular-Weight Exogenous Metabolites of Algae-Bacterial Communities in the Laboratory Accumulative Culture

Bataeva

2023

Preprint

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The study of exogenous metabolites of algae-bacterial communities in the laboratory accumulative culture obtained from natural river water was done using gas chromatography-mass spectrometry. Exometabolites of the algae-bacterial community (including microalgae and cyanobacteria) in the culture medium were represented by saturated, unsaturated, and aromatic hydrocarbons, carboxylic acids, phenolic, and terpene compounds and their derivatives. Possible biological activities of the discovered exometabolites are considered. The study has demonstrated that an increase in the number of main groups of microorganisms, along with changes in the composition of algae and cyanobacteria, are responsible for the increase in the composition and concentration of metabolites in the microecosystem's culture medium after one month of cultivation. The presence of octacosane in high concentration (0.0603 mg/l; 23.78% of the total content of low molecular weight organic compounds) by the end of exposure accumulative culture is associated with the strong development of the cyanobacterium Gloeocapsa sp. in the presence of diatom algae of the genus Navicula and green algae of the genera Chlorella and Scenedesmus. Due to the need to comprehend the ecological and biochemical mechanisms of the formation and functioning of algae-bacterial communities, as well as to predict potential paths of transformation and evolution of aquatic ecosystems, the specificity of exometabolite complexes of algae and microorganisms, as well as their allelopathic and other biochemical interactions in freshwater ecosystems, requires further serious study.

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Diuron

Cited by 4 publications

References 113 publications

Pyrolysis and Char Characterization of Refuse-Derived Fuel Components

Pyrolysis and Char Characterization of Refuse-Derived Fuel Components

Extraction of hydrocarbons from freshwater green microalgae (Botryococcus sp.) biomass after phycoremediation of domestic wastewater

Gas Chromatography-Mass Spectrometric Study of Low-Molecular-Weight Exogenous Metabolites of Algae-Bacterial Communities in the Laboratory Accumulative Culture

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