Monitoring Aromatic Surfactants and Their Biodegradation Intermediates in Raw and Treated Sewages by Solid-Phase Extraction and Liquid Chromatography

Corcia, Antonio Di; Samperi, Roberto; Marcomini, Antonio

doi:10.1021/es00054a016

Cited by 209 publications

(153 citation statements)

References 33 publications

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“…But the pH of all effluent after Fenton process was less than 3. This showed that the pH of the wastewater was decreasing in the reaction process which may be due to the production of some intermediate products, such as nonylphenoxy carboxylic acids (NPEC) [17] [18]. It was speculated that the optimal pH in reaction process was still in the range of 3 -4, which was coincident with the values reported in the literatures.…”

Section: Effect Of Initial Phsupporting

confidence: 59%

Treatment of the High Concentration Nonylphenol Ethoxylates (NPEOs) Wastewater by Fenton Oxidation Process

Zhou¹,

Zhang²

2017

AJAC

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The Fenton oxidation process was applied in the treatment of an actual high concentration nonylphenol Ethoxylates (NPEOs) wastewater. The effects of H 2 O 2 dosage, molar ratio of H 2 O 2 /Fe 2+ (Fe 2+ dosage), pH value and reaction time on the degradation of NPEOs were investigated. The orthogonal experiment indicated that the order of degree of influence on the COD removal was molar ratio of H 2 O 2 /Fe 2+ , reaction time, dosage of H 2 O 2 , and initial pH. The single-factor tests were carried out to determine the optimal conditions, and the results were H 2 O 2 dosage of 76.32 mmol/L, molar ratio of H 2 O 2 /Fe 2+ of 3, pH value of 5 and reaction time of 2 h. Under the optimum operation conditions, the COD removal efficiency was 85.6% and the effluent could be mixed with other wastewater into the large-scale biological treatment system.

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Section: Effect Of Initial Phsupporting

confidence: 59%

Treatment of the High Concentration Nonylphenol Ethoxylates (NPEOs) Wastewater by Fenton Oxidation Process

Zhou¹,

Zhang²

2017

AJAC

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“…The octadecylsilica sorbents allow for achieve high recoveries for different alkylphenol ethoxylates oligomers and low for nonylphenols and octylephenols [18,19]. The use of GCB or C 18 sorbents give possibility to isolation of anionic (LAS, SPC, AES) and non-ionic (APEO, APEC, NP) surface active compounds in single extraction [20][21][22].The highly cross-linked PSDB (polymeric sorbent) was used for simultaneous isolation of APs, short-chain AP 1-5 EOs [23] and long-chain AP [6][7][8][9][10][11][12][13][14][15][16] EOs (low recoveries for long-chain compounds) [7]. The comparison of octadecylsilica and polymeric sorbents applied for isolation of non-ionic SAA from liquid samples provide to conclusions that both sorbents have obtained similar recoveries of analytes, but polymeric sorbent allows for faster extraction of larger sample volumes [7,23].…”

Section: Liquid Samplesmentioning

confidence: 99%

Determination of Surfactants in Environmental Samples. Part III. Non-Ionic Compounds

Olkowska¹,

Ruman²,

Kowalska³

et al. 2013

Ecological Chemistry and Engineering S

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Non-ionic surface active agents are a diverse group of chemicals which have an uncharged polar head and a non-polar tail. They have different properties due to amphiphilic structure of their molecules. Commercial available non-ionic surfactants consist of the broadest spectrum of compounds in comparison with other types of such agents. Typically, non-ionic compounds found applications in households and industry during formulation of cleaning products, cosmetics, paints, preservative coatings, resins, textiles, pulp and paper, petroleum products or pesticides. Their are one of the most common use class of surfactants which can be potential pollution sources of the different compartment of environment (because of they widely application or discharging treated wastewaters to surface water and sludge in agricultural). It is important to investigate the behavior, environmental fate of non-ionic surfactants and their impact on living organisms (they are toxic and/or can disrupt endocrine functions). To solve such problems should be applied appropriated analytical tools. Sample preparation step is one of the most critical part of analytical procedures in determination of different compounds in environmental matrices. Traditional extraction techniques (LLE -for liquid samples; SLE -for solid samples) are time and solvent-consuming. Developments in this field result in improving isolation efficiency and decreasing solvent consumption (eg SPE and SPME -liquid samples or PLE, SFE and MAE -solid samples). At final determination step can be applied spectrophotometric technique, potentiometric titrametration or tensammetry (determination total concentration of non-ionic surfactants) or chromatographic techniques coupled with appropriated detection techniques (individual analytes). The literature data concerning the concentrations of non-ionic surfactants in the different compartments of the environment can give general view that various ecosystems are polluted by those compounds.

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“…Water sample was without previous filtration, extracted on a graphitized carbon black SPE column (Supelclean ENVI-Carb), washed with methanol and eluted with dichloromethane/methanol containing tetramethylammoniumhydroxide (Di Corcia, et al, 1994). After evaporation the extract was redisolved in equal parts 10 mM NH4OAc in water and methanol and analysed by LC-MS/MS.…”

Section: Sodium Dodecyl Sulphate (Sds) Sodium Laureth Sulphate (Sdsementioning

confidence: 99%

Pharmaceuticals and additives in personal care products as environmental pollutants

Huber¹,

Remberger²,

Goetsch³

et al. 2013

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Monitoring Aromatic Surfactants and Their Biodegradation Intermediates in Raw and Treated Sewages by Solid-Phase Extraction and Liquid Chromatography

Cited by 209 publications

References 33 publications

Treatment of the High Concentration Nonylphenol Ethoxylates (NPEOs) Wastewater by Fenton Oxidation Process

Treatment of the High Concentration Nonylphenol Ethoxylates (NPEOs) Wastewater by Fenton Oxidation Process

Determination of Surfactants in Environmental Samples. Part III. Non-Ionic Compounds

Pharmaceuticals and additives in personal care products as environmental pollutants

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