Psychiatric Pharmaceuticals as Emerging Contaminants in Wastewater

Silva, Bruna; Costa, Filomena; Neves, Isabel C.; Tavares, Teresa

doi:10.1007/978-3-319-20493-2

Cited by 32 publications

(38 citation statements)

References 121 publications

(182 reference statements)

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“…Although conventional wastewater treatment plants, WWTP, are effective in terms of organic matter and nutrients removal, they are not prepared for the treatment of complex micropollutants, such as pharmaceuticals [1]. Hence, several pharmaceuticals and their metabolites have been introduced in aquatic ecosystems, mainly from effluents of WWTP [2,3]. Even though pharmaceutical compounds have been detected at trace concentrations (from ng/L to µg/L levels), extremely high concentrations (up to mg/L levels) of various pharmaceutical residues have been found in effluents from drug manufacturing facilities [4,5].…”

Section: Introductionmentioning

confidence: 99%

Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water

Silva

Martins

Roșca

et al. 2020

Separation and Purification Technology

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The goal of this study is to demonstrate that waste-based biosorbents can be cost-effective and green alternatives to commercial adsorbents for the retention of pharmaceuticals. Adsorption kinetics and equilibrium measurements allowed the determination of the adsorption capacity of commercial adsorbents (GAC-granular activated carbon and two synthetic zeolites) and waste-based biosorbents (SCG-spent coffee grounds, pine bark and cork waste) for the retention of fluoxetine from water. For commercial adsorbents, the maximum adsorption capacities followed the order GAC (233.5 mg/g) > zeolite 13× (32.11 mg/g) > zeolite 4A (21.86 mg/g), while for low-cost biosorbents, the sequence was SCG (14.31 mg/g) > pine bark (6.53 mg/g) > cork waste (4.74 mg/g). The economic feasibility of the adsorbents/biosorbents was examined through a detailed cost analysis. Commercial adsorbents present higher costs per gram of fluoxetine removed (6.85 €/g, 3.13 €/g and 1.07 €/g zeolite 4 A, zeolite 13× and GAC, respectively) when compared to low-cost biosorbents (0.92 €/g, 0.41 €/g and 0.16 €/g for pine bark, cork waste and SCG, respectively). It was found that SCG is the most economically viable option for fluoxetine removal, while cork waste, the second less expensive, is the most environmentally friendly biosorbent since its preparation does not generate any solid or liquid wastes. This manuscript demonstrates that the conversion of waste materials into adsorbents has a double environmental benefit for both improving waste management and protecting the environment.

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Section: Introductionmentioning

confidence: 99%

Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water

Silva

Martins

Roșca

et al. 2020

Separation and Purification Technology

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“…More information about microfluidic LC can be found in Rainville et al, Wang et al and Šesták et al [110,112,113]. Advances made in hand-portable LC instrumentation will moreover allow its use on-site and therefore have a huge potential in environmental and bioanalysis [114]. …”

Section: (Ii) Trends In Liquid Chromatographymentioning

confidence: 99%

Quantitative mass spectrometry methods for pharmaceutical analysis

Loos¹,

Schepdael²,

Cabooter³

2016

Phil. Trans. R. Soc. A.

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Quantitative pharmaceutical analysis is nowadays frequently executed using mass spectrometry. Electrospray ionization coupled to a (hybrid) triple quadrupole mass spectrometer is generally used in combination with solid-phase extraction and liquid chromatography. Furthermore, isotopically labelled standards are often used to correct for ion suppression. The challenges in producing sensitive but reliable quantitative data depend on the instrumentation, sample preparation and hyphenated techniques. In this contribution, different approaches to enhance the ionization efficiencies using modified source geometries and improved ion guidance are provided. Furthermore, possibilities to minimize, assess and correct for matrix interferences caused by co-eluting substances are described. With the focus on pharmaceuticals in the environment and bioanalysis, different separation techniques, trends in liquid chromatography and sample preparation methods to minimize matrix effects and increase sensitivity are discussed. Although highly sensitive methods are generally aimed for to provide automated multi-residue analysis, (less sensitive) miniaturized set-ups have a great potential due to their ability for in-field usage. This article is part of the themed issue ‘Quantitative mass spectrometry’.

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“…The presence of pharmaceutical compounds, especially antibiotics in water and wastewater is increasing the concern related to the environmental contamination since the conventional biological treatments seem to be unsatisfactory in this case. Due to their potential risk, recently an important number of scientific works in the field of the detection of pharmaceuticals, particularly antibiotics were carried out …”

Section: Introductionmentioning

confidence: 99%

Study of the Electroreactivity of Amoxicillin on Carbon Nanotube‐Supported Metal Electrodes

et al. 2018

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The electroreactivity of amoxicillin (AMX) was studied on catalysts based on platinum, palladium and ruthenium supported on carbon nanotubes (Pt/CNT, Pd/CNT, Ru/CNT) in aqueous media using cyclic voltammetry. Cyclic voltammograms show two oxidation processes, the first one between 0.5 and 1.0 V vs. reference hydrogen electrode (RHE) and the second one between 1.2 and 1.6 V vs. RHE. The effects of electrocatalytic material and supporting electrolyte, on current intensities and oxidation potentials, were determined using experimental design strategy (DOE). Kinetic parameters of the oxidation reactions were calculated from the scan rate study. The constant potential electrolysis of AMX was carried out on Ru/CNT catalyst, in 0.1 M NaOH and AMX conversion reached 45 % after 6 h of electrolysis at 2.5 V vs. RHE. The percentages of CO 3 2À , SO 4 2À and NO 3 À among oxidation products were 26, 17and 4 %, respectively. The primary degradation products of AMX determined by HPLC-MS gave some insight about the reaction pathways.[a] M.

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Psychiatric Pharmaceuticals as Emerging Contaminants in Wastewater

Cited by 32 publications

References 121 publications

Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water

Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water

Quantitative mass spectrometry methods for pharmaceutical analysis

Study of the Electroreactivity of Amoxicillin on Carbon Nanotube‐Supported Metal Electrodes

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