Innovative technologies for industrial wastewater treatment

Atamanova, O. V.; Tikhomirova, E. I.; Politaeva, Natalia; Podolsky, Andrei L.; Istrashkina, M.V.

doi:10.1088/1755-1315/288/1/012001

Cited by 5 publications

(2 citation statements)

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“…With the emergence of modern wastewater treatment methods, the problems of sewage treatment have begun to find their solutions [3,4]. The diversity of the composition of sewage determines the breadth of choice of different technological schemes and equipment for their treatment.…”

Section: Introductionmentioning

confidence: 99%

Physico – chemical study of the adsorption properties of natural minerals for sorption treatment of wastewater from Pb+2, Ni+2, Zn+2 ions

Murzagaliyeva,

Ashimkhan,

Sapiyeva

et al. 2024

EEJET

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One of the urgent challenges is to clean up industrial wastewater from toxic and heavy metal ions in a more efficient and environmentally friendly way. Bentonite montmorillonite, bentonite red, zeolite and diatomite of the Almaty region were selected as the materials of the study. In this study was investigated the adsorption properties of natural minerals by physico-chemical methods for the sorption treatment of wastewater from Pb+2, Ni+2, Zn+2 ions. X – ray phase analysis determines the chemical composition of the materials studied. The main component of diatomite is SiO2, in zeolite – Laumontite composition Ca4Al8Si16O48·14H2O (51.3 %). The base of bentonites is bedellite – montmorillonite, which has an amorphous structure. The method of atomic absorption spectrometry was used to investigate the sorption of heavy metal ions (Pb+2, Ni+2, Zn+2) by the natural adsorbents under investigation. Bentonites, Mukra and Medium Tentec have the best sorption properties. Here, the content of lead, nickel and zinc ions is reduced by an average of 82–85 %. In the case of diatomite, the ion content of the same metals is reduced by approximately 74–76 %, and for zeolite by 64 %. Generally speaking, the adsorption properties of these minerals are expected to be achieved by the high porosity in the case of diatomite and zeolite or the penetration of ions into the interpackage space between the bentonite layers. Mixing adsorbents, increasing their mass percentages and increasing the mass of the mixture leads to increased efficiency of the degree of cleaning from these ions. In conclusion of the study, natural minerals of the Almaty region have sorption properties that can be used for practical purposes, in particular for wastewater treatment

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Section: Introductionmentioning

confidence: 99%

Physico – chemical study of the adsorption properties of natural minerals for sorption treatment of wastewater from Pb+2, Ni+2, Zn+2 ions

Murzagaliyeva,

Ashimkhan,

Sapiyeva

et al. 2024

EEJET

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“…In recent decades, the interest of scientists in the development of new technologies for wastewater treatment has significantly increased [9]. Of exceptional attention is the treatment of wastewaters from galvanic production, which is one of the most significant problems for the aquatic environment due to its high toxicity [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Applicability of the modified diatomite for treatment of wastewater containing heavy metals

et al. 2021

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The paper studies various modifications of diatomite, aiming at creating sorbents for wastewater purification from heavy metal ions. Diatomite of the Akhmatovskoe deposit of the Penza region was considered as a raw material. The processes of physical and chemical modification of diatomite were investigated. Adsorption isotherms were constructed, quantitative characteristics of adsorption of copper ions on the surface of modified sorbents were obtained. A chemical modification (acidic and alkaline) is proposed, which results in an increased adsorption capacity for heavy metal ions. The applicability of diatomite for the purification of highly concentrated wastewater containing heavy metals is shown.

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