Adsorptive removal of pharmaceuticals and personal care products from aqueous solutions by chemically treated fly ash

Styszko, Katarzyna; Szczurowski, Jakub; Czuma, Natalia; Makowska, Dorota; Kistler, Magdalena; Uruski, Łukasz

doi:10.1007/s13762-017-1415-y

Cited by 21 publications

(6 citation statements)

References 32 publications

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“…Practically, many adsorbents (like CFA) are difficult to remove after wastewater treatment. CFA has been used for wastewater treatment in a variety of ways based on adsorption as well as adsorption enhanced degradation (Mushtaq et al 2019;Styszko et al 2018;Wang et al 2018). Modification of fly ash (FA) by magnetite or ferrite nanoparticles allows easy separation of adsorbent/catalyst magnetically.…”

Section: Introductionmentioning

confidence: 99%

MnFe2O4/coal fly ash nanocomposite: a novel sunlight-active magnetic photocatalyst for dye degradation

Mushtaq

Zahid

Mansha

et al. 2020

Int. J. Environ. Sci. Technol.

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The present study focuses on the use of waste coal fly ash (CFA) for preparing magnetic photocatalyst (MnFe 2 O 4 /CFA) and its application of dye degradation from water. The MnFe 2 O 4 /CFA photocatalyst was synthesized through a facile hydrothermal method and characterized by various techniques for its structural, morphological, and photocatalytic properties. The MnFe 2 O 4 /CFA nanocomposite was used for photocatalytic degradation of methylene blue (MB) under sunlight. Detailed studies for various parameters such as pH, catalyst dose, initial dye concentration, oxidant concentration, and time on photocatalytic degradation were analyzed. The degradation efficiency reached ~ 100% under sunlight within 30 min by the MnFe 2 O 4 /CFA nanocomposite. The degradation/removal efficiency of MB was found in the order MnFe 2 O 4 /CFA (99.9%) > CFA (61%) > MnFe 2 O 4 (56%) under optimum conditions for composite at pH = 3, composite dose 60 mg/L, and oxidant dose 0.8 mM. The MnFe 2 O 4 /CFA is a promising visible-light-active photocatalyst and can be reused several times without significant loss in photocatalytic degradation efficiency.

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Section: Introductionmentioning

confidence: 99%

MnFe2O4/coal fly ash nanocomposite: a novel sunlight-active magnetic photocatalyst for dye degradation

Mushtaq

Zahid

Mansha

et al. 2020

Int. J. Environ. Sci. Technol.

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“…To increase the adsorption capacity, activation of the material surface by using acid or base chemical treatment is recommended. Studies have shown that the modification of ash can be done in different ways [16,[20][21][22][23]. By applying one of these methods, various zeolitic structures are obtained: Analcime (A), Chabazite (Cha), Cancrinite (Can), NaP1, Na-Y, Sodalite (S), Fau (Faujasite) [11,24].…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Materials Obtained by Fly Ash Sulphuric Activation for Cadmium Ions Removal

et al. 2020

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Wastes are the sustainable sources of raw materials for the synthesis of new adsorbent materials. This study has as objectives the advanced capitalization of fly ash, by sulphuric acid activation methods, and testing of synthesized materials for heavy metals removal. Based on the previous studies, the synthesis parameters were 1/3 s/L ratio, 80 °C temperature and 10% diluted sulphuric acid, which permitted the synthesis of an eco-friendly adsorbent. The prepared adsorbent was characterized through SEM, EDX, FTIR, XRD and BET methods. Adsorption studies were carried out for the removal of Cd2+ ions, recognized as ions dangerous for the environment. The effects of adsorbent dose, contact time and metal ion concentrations were studied. The data were tested in terms of Langmuir and Freundlich isotherm and it was found that the Langmuir isotherm fitted the adsorption with a maximum adsorption capacity of 28.09 mg/g. Kinetic data were evaluated with the pseudo-first-order model, the pseudo-second-order model and the intraparticle diffusion model. The kinetics of cadmium adsorption into eco-friendly material was described with the pseudo-second-order model, which indicated the chemisorption mechanism.

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“…There are many studies in the literature focusing on ecotoxic elements in landfills of mining wastes (heaps, excavation filling, land leveling, etc.) and in wastes from coal conversion processes such as fly ash or slag (Skodras et al 2006 , 2009 ; Grammelis et al 2006 ; Shin et al 2013 ; Tsiridis et al 2015 ; Phoungthong et al 2018 ; Wierońska et al 2017 , 2018 ; Styszko et al 2018 ). However, less information is available in the literature on the content of ecotoxic elements in “fresh” wastes (i.e., wastes that have not been exposed to environmental factors which occur during their storage due to the short period of time since their production) derived from mechanical processing of hard coal and on their impact on the environment.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the content, occurrence, and leachability of arsenic, lead, and thallium in wastes from coal cleaning processes

Makowska

Strugała

Wierońska

et al. 2018

Environ Sci Pollut Res

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The aim of the study was to evaluate the content, occurrence, and leachability of arsenic (As), lead (Pb), and thallium (Tl) in wastes from coal cleaning processes with respect to the safe management of this waste. The study focused on wastes resulting from the wet gravitation and flotation processes employed for the purposes of coking coal cleaning in four coal mines situated in the Upper Silesian Coal Basin (Poland). The scope of the study included (i) determination of the content of these elements in the investigated wastes using atomic absorption spectrometry, (ii) evaluation of their mode of occurrence using electron microprobe analysis, and (iii) preliminary assessment of their leachability in deionized water. The content of the analyzed elements in the examined samples of coal waste was twice as high as the average content of these elements in the Earth’s crust. The contents of As and Pb, however, did not exceed their permissible contents in inert waste in accordance with Polish legal regulations based on EU directives. The limit on the content of Tl is not specified by these regulations, but its amount in the examined samples was similar to that occurring in the soils. Moreover, leaching tests have shown that these elements are hardly eluted from the analyzed material. Their content in the water leachates was generally lower than the detection limit of the analytical method, complying with the standards for good and very good water quality. Low leachability of these elements most probably results from their mode of occurrence in the investigated wastes. The chemical analysis using an electron microprobe and the analysis of the correlation between these elements, e.g., total and pyritic sulfur, have shown that Pb, As, and Tl are mainly found in sulfide minerals which are characterized by negligible solubility. In conclusion, the investigated hard coal processing waste does not constitute a threat to the environment and can be commercially used or safely neutralized, e.g., by landfilling.

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Adsorptive removal of pharmaceuticals and personal care products from aqueous solutions by chemically treated fly ash

Cited by 21 publications

References 32 publications

MnFe2O4/coal fly ash nanocomposite: a novel sunlight-active magnetic photocatalyst for dye degradation

MnFe2O4/coal fly ash nanocomposite: a novel sunlight-active magnetic photocatalyst for dye degradation

Eco-Friendly Materials Obtained by Fly Ash Sulphuric Activation for Cadmium Ions Removal

Assessment of the content, occurrence, and leachability of arsenic, lead, and thallium in wastes from coal cleaning processes

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