Open AccessJournal Article
Removal of direct dyes from wastewater by sorption onto smectite-clay'
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In this article, the authors investigated the feasibility of using smectite-clay, co-occurring in brown coal deposits, for removal of direct dyes and pigments.Abstract:
Dyes and pigments are important organic pollutants of the water environment. Dyes may be removed from wastewater by using one of the most efficient methods for wastewater treatment-adsorption onto porous (natural and waste) minerals or organogenic substances. Feasibility of using smectite-clay, co-occurring in brown coal deposits, for removal of direct dyes was investigated. The Freundlich linear regression model was better in modeling of sorption direct dyes onto smectite-clay; it yielded better fit of the theoretical isotherm to the experimental data. The electrostatic interactions and hydrogen bonds were shown to play the most important role in adsorption of direct dyes onto smectite-clay.read more
Citations
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Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix.
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Intercalated theophylline-smectite hybrid for pH-mediated delivery
TL;DR: Findings indicate that smectite clay is a potentially suitable vehicle for the safe passage of theophylline into the duodenum as well as reducing fluctuations in serum concentration which may impact therapeutic effect and toxicity.
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Adsorption of anionic dyes onto natural, thermally and chemically modified smectite clays
Joanna Kyzioł-Komosińska,Czesława Rosik-Dulewska,Magdalena Pająk,Iwona Krzyżewska,Agnieszka Dzieniszewska +4 more
TL;DR: In this article, the adsorption capacity of the smectite clays (from the overburden of the lignite deposit in Belchatow) for two anionic dyes, i.e., Reactive Blue 81 (RB-81) and Direct Blue 74 (DB-74), was investigated.
References
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Pseudo-second order model for sorption processes
Yuh-Shan Ho,Gordon McKay +1 more
TL;DR: In this paper, a literature review of the use of sorbents and biosorbents to treat polluted aqueous effluents containing dyes:organics or metal ions has been conducted.
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Application of low-cost adsorbents for dye removal – A review
V K Gupta,Suhas +1 more
TL;DR: From a comprehensive literature review, it was found that some LCAs, in addition to having wide availability, have fast kinetics and appreciable adsorption capacities too.
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A general treatment and classification of the solute adsorption isotherm. I. Theoretical
TL;DR: In this article, a theoretical basis is developed for the classification of adsorption isotherms for solutes in dilute solution, which relates their characteristic shapes to parameters of the solvent and any second solute.
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Dye removal using low cost adsorbents
TL;DR: In this paper, four low-cost adsorbents, namely peat, steel plant slag, bentonite clay and fly ash, were used for dye removal from wastewaters.
Journal ArticleDOI
Regression analysis for the sorption isotherms of basic dyes on sugarcane dust
TL;DR: The sorption of three basic dyes, named basic violet 10, basic violet 1, and basic green 4, from aqueous solutions onto sugarcane dust was studied and indicated that the Chi-square test provided a better determination for the three sets of experimental data.