Water Pollution and Advanced Water Treatment Technologies

Mulay, Manasi R.; Martsinovich, Natalia

doi:10.1007/978-3-030-87745-3_189

Cited by 2 publications

(2 citation statements)

References 67 publications

(82 reference statements)

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“…There are several modern natural sorbents such as activated carbon, green alumina, biosorbents (bacteria, algae and other micro-organisms) and coconut charcoal, as well as ashes and ashes from various plants and wood materials. They effectively remove organic substances, pesticides, chlorine, chemical compounds, toxic metals, radionuclides and other pollutants due to their large surfaces, many pores, high adsorption capacity, chemical stability and natural origin, which are widely used to clean water from various pollutants [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Applicability of Zeolite from the Daubabinsk and Chankanai Deposits as a Sorbent for Natural Waters

Kuldeyev

Orynbekov²,

Mansurov³

et al. 2023

Water

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This article examined the characteristics of zeolites from the Chankanai and Daubabinsk deposits. In the field of water treatment, the purpose of investigating natural zeolite from the Chankanai and Daubabinsk deposits as a sorbent presents new opportunities and prospects, as this raw material is little studied. The effectiveness of the sorbents was assessed based on the results of the water specifications according to the following criteria: methods for determining the total hardness of water; methods for measuring the mass concentration of total iron in water; methods for the determination of chloride in water; methods for the determination of nitrogen-containing substances in water; methods for determining the dry residue content of water; methods for determining the sulphate content of water; on hygiene requirements and water quality control. Zeolite modifications were aimed at improving their adsorption properties, increasing the efficiency of pollutant removal and developing optimal methods of using zeolites in water filtration. Modified zeolite from the Chankanai and Daubabinsk deposits showed high efficiency as a filter. When it was used to treat natural water, which normally contains high hardness and alkalinity, the best results were achieved with zeolite from the Chankanai deposit. In terms of Fe+ and Cl content, the best results were achieved using zeolite from the Daubabinsk deposit.

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Section: Introductionmentioning

confidence: 99%

“…Using the sorbents listed above, a number of methods are used to treat natural water from pollutants, with both advantages and disadvantages [10][11][12]. Filtration, coagulation and flocculation and ozonation are common water treatment methods.…”

Section: Introductionmentioning

confidence: 99%

Applicability of Zeolite from the Daubabinsk and Chankanai Deposits as a Sorbent for Natural Waters

Kuldeyev

Orynbekov²,

Mansurov³

et al. 2023

Water

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Adsorptive removal of synthetic dye from its aqueous solution by using chitosan-bentonite composite: DFT and experimental studies

Şenol,

Ertap,

Fernine

et al. 2024

Polym. Bull.

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This research investigates the adsorption efficiency of a chitosan-bentonite (Ch–B) composite in removing methyl orange (MO), a common textile dye, from aqueous solutions. The study integrates experimental and theoretical analyses, employing density functional theory (DFT) to gain insights into the molecular interactions between the composite material and MO molecules. The Ch–B composite was characterized using various techniques, including FT-IR spectroscopy, XRD, and SEM–EDX. The experimental results indicate that the Ch–B composite exhibits a high adsorption capacity for MO, with optimal conditions identified for efficient removal. The Langmuir model was found to best fit the experimental data and the adsorption capacity was 117 mg g−1. Adsorption thermodynamics showed that the adsorption process was spontaneous, feasible, and exothermic. DFT calculation results are correlated with experimental findings to confirm theoretical predictions and improve the overall understanding of the adsorption process. Electronic structure calculations reveal the nature of the interactions between the Ch–B composite and MO molecules, including hydrogen bonds and electrostatic forces.

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Water Pollution and Advanced Water Treatment Technologies

Cited by 2 publications

References 67 publications

Applicability of Zeolite from the Daubabinsk and Chankanai Deposits as a Sorbent for Natural Waters

Applicability of Zeolite from the Daubabinsk and Chankanai Deposits as a Sorbent for Natural Waters

Adsorptive removal of synthetic dye from its aqueous solution by using chitosan-bentonite composite: DFT and experimental studies

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