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

Q3 Mathematics

Eastern-European Journal of Enterprise Technologies Pub Date : 2024-02-28 DOI:10.15587/1729-4061.2024.298913

M.G. Murzagaliyeva, N. Ashimkhan, A. Sapiyeva, Gulnur Tleuhanovna Daribayeva

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Abstract

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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天然矿物吸附废水中 Pb+2、Ni+2 和 Zn+2 离子的吸附特性的物理化学研究

本研究选择阿拉木图地区的膨润土蒙脱石、膨润土红、沸石和硅藻土作为研究材料，通过物理化学方法研究天然矿物的吸附特性，以吸附处理废水中的 Pb+2、Ni+2 和 Zn+2 离子。硅藻土的主要成分是二氧化硅，沸石--劳蒙土的成分是 Ca4Al8Si16O48-14H2O（51.3%）。膨润土的基质是基质铁-蒙脱石，具有无定形结构。采用原子吸收光谱法研究了所研究的天然吸附剂对重金属离子（Pb+2、Ni+2、Zn+2）的吸附情况。膨润土、Mukra 和 Medium Tentec 的吸附性能最好。其中，铅、镍和锌离子的含量平均降低了 82-85%。在硅藻土中，相同金属的离子含量减少了约 74-76%，沸石则减少了 64%。一般来说，硅藻土和沸石的高孔隙率或离子渗入膨润土层之间的包装间隙可实现这些矿物的吸附特性。总之，阿拉木图地区的天然矿物具有吸附特性，可用于实际用途，特别是废水处理。

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来源期刊

Eastern-European Journal of Enterprise Technologies Mathematics-Applied Mathematics

CiteScore

2.00

自引率

0.00%

发文量

369

审稿时长

6 weeks

期刊介绍： Terminology used in the title of the "East European Journal of Enterprise Technologies" - "enterprise technologies" should be read as "industrial technologies". "Eastern-European Journal of Enterprise Technologies" publishes all those best ideas from the science, which can be introduced in the industry. Since, obtaining the high-quality, competitive industrial products is based on introducing high technologies from various independent spheres of scientific researches, but united by a common end result - a finished high-technology product. Among these scientific spheres, there are engineering, power engineering and energy saving, technologies of inorganic and organic substances and materials science, information technologies and control systems. Publishing scientific papers in these directions are the main development "vectors" of the "Eastern-European Journal of Enterprise Technologies". Since, these are those directions of scientific researches, the results of which can be directly used in modern industrial production: space and aircraft industry, instrument-making industry, mechanical engineering, power engineering, chemical industry and metallurgy.