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

Abstract

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.

Sorption-Based Removal Techniques for Microplastic Contamination of Tap Water

“…In resource-constrained settings like Kazakhstan, quartz sand serves as a readily available and cost-effective filtering material in drinking water treatment systems. Nonetheless, zeolites and coals, including those indigenous to Kazakhstan, demonstrate notable sorption capabilities against organic contaminants, heavy metals, and radionuclides [43][44][45][46]. Published findings suggest that sand filters could be replaced effectively by aluminosilicate filter media [47], and zeolites have shown promise in microplastic treatment in wastewater [48], while granular coals, when combined with ion exchange and microfiltration, have demonstrated efficacy in removing certain microplastic types [49].…”

Влияние Термической Обработки На Сорбционные Характеристики Цеолита Применяемого В Процессе Очистки Воды

“…Химическая модификация неорганическими солями (NaCl, CaCl 2 , BaCl 2 , NH 4 Cl, FeCl 3 ) или катионным поверхностно-активным веществом (гексадецилтриметиламмоний (HDTMA)-бромид) позволяет улучшить свойства цеолита и повысить его эффективность при очистке воды [7,8]. Структура цеолита и его химические и физические свойства могут быть изменены либо неорганическими основными (NaOH, Ca(OH) 2 ), либо кислотными растворами (HCl, HNO 3 ) [9,10]. МГ-1Ф, электроплита, аналитические весы, муфельная печь, сита (с отверстиями 0,63; 1; 1,25), таймер, реактор термообработки (рис.…”