Adsorption Extraction of Chromium Ions (III) with the Help of Bentonite Clays

Malovanyy, Myroslav; Palamarchuk, Olga; Trach, I.A.; Petruk, H. D.; Sakalova, Halyna; Soloviy, Christina; Vasylinych, Tamara; Tymchuk, Ivan; Vronska, Nataliya

doi:10.12911/22998993/125545

Cited by 21 publications

(17 citation statements)

References 4 publications

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“…In turn, Mendrycka and Stawarz (2012) report that water consumption in plants can be as high as 40-60 m 3 per tonne of raw hides. The level of pollution and volume of wastewater depends on the tannery's rhythm of operation, the type of leather processed, the technology and mainly the preparation and tanning processes (Malovanyy et al, 2020). The aim is to reduce water consumption and reuse baths in the cycle with the use of pro-ecological technologies (Rüffer & Rosenwinkel, 1998).…”

Section: Methodsmentioning

confidence: 99%

Water and wastewater management in a small tanning facility

Ignatowicz

Dziadel²

2022

EiS

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This paper presents a tannery industry's water and wastewater management problem. Information has been collected on the volume of water demand and, consequently, wastewater generation in these plants. This made it possible to relate them to the values generated by one of the smaller tanning plants located in Poland. The concentration of the pollutants contained in this wastewater, mainly chromium, was also determined from the study. Management of wastewater is a financial nuisance for small plants. The need to conclude contracts with specialized treatment plants, storage and long-distance transport of sewage, also by the respective companies, generates considerable costs, which may be a limiting factor of the willingness to invest in production. Wort reuse reduces the cost of purchasing chromium as a bath ingredient, reduces the frequency of waste disposal and significantly reduces company costs.

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Section: Methodsmentioning

confidence: 99%

Water and wastewater management in a small tanning facility

Ignatowicz

Dziadel²

2022

EiS

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“…Foregoing studies allow stating [2] that the use of sorption methods is most effective at an initial content of chromium ions of 1-1.5 g/dm 3 . That is, preliminary wastewater treatment is advisable, which includes the stage of sedimentation, filtration and reagent sedimentation with lime followed by the subsequent removal of the formed sediment [4].…”

Section: Usage Of Spent Clay Sorption Materials In Leather and Fur Pr...mentioning

confidence: 99%

Використання Відпрацьованих Глинистих Сорбційних Матеріалів У Технологіях Виробництва Шкіри Та Хутра

Sakalova¹

2023

PEI

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The work is devoted to solving the current problem of increasing the level of environmental safety of treatment industrial wastewater of leather production from chromium ions (III) through the use of natural and modified bentonite. The most promising way of wastewater purification is the sorption technology, which is widely used in many countries to prevent pollution of the environment by wastewater from industrial enterprises. Studies of the use of natural and modified bentonite in the adsorption of Cr3 + ions have been carried out. The purpose of the research was to study the use of clay sorbents previously applied for the purification of wastewater from heavy metal ions in technological processes of leather and fur production. The possibility and modes of application of spent bentonite dispersions for the processing of leather semi-finished products to increase resource conservation and environmental friendliness of leather production were also established. The influence of the process duration on the sorption efficiency of chromium ions has been studied. Studies have been conducted to use spent bentonite in tanning and filling processes. The efficiency of modification of montmorillonite has been proved and the expediency of using mineral dispersion for qualitative formation of the structure and properties of the leather during tanning has been established. The efficiency of adsorption of anionic dyes on spent montmorillonite is investigated. Was identified a high level of adsorption of anionic dyes at pH 5-6.5. The role of the dye structure, the level of the critical concentration of micelle formation on the dye adsorption on the surface of montmorillonite is provided. Utilization of spent bentonite by using it as part of multifunctional materials for the processing of leather semi-finished products contributes to a considerable increase in resource conservation and environmental friendliness of leather production.

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“…Significant anthropogenic pressure is exerted on water resources, the atmosphere, and soils. This requires the need to apply advanced technologies for municipal wastewater treatment (Malovanyy et al, 2016;Shmandiy et al, 2017), disposal of household and industrial waste (Tymchuk et al, 2020;Voytovych et al, 2020), treatment of hazardous industrial effluents (Malovanyy et al, 2019;Malovanyy et al, 2020), protection of the atmosphere (Lazaruk et al, 2020;Vaskina et al, 2020). But soil contamination in urbanized areas is of particular concern.…”

Section: Introductionmentioning

confidence: 99%

The Study of Heavy Metal Impacts on Biotic Processes in the Soils of the Urban Ecosystem of the City of Rivne (Ukraine)

Melnyk¹,

Malovanyy²,

Lukіanchuk³

et al. 2023

Ecol. Eng. Environ. Technol.

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The paper deals with investigating the impact of heavy metals on biotic processes in the soils of the urban ecosystem of the city of Rivne. The territories of the northern part of the city, where the main industrial enterprises are concentrated, and the southern part of the city, with a significant impact of fugitive emissions from the railway and road transport, are characterized by the highest level of soil contamination. The soils are assigned to class III of hazard of contamination with heavy metals with "medium impact level" on biological processes, soil contamination category is "hazardous". The western and central parts of the city are marked by a significant level of contamination, the soils belong to class IV of hazard with "moderate impact level" on biological processes, the soil contamination category is "moderately hazardous". The eastern part of the city is the least contaminated and is assigned to class V of hazard. The contamination level is "low", the soil contamination category is "permissible".

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Adsorption Extraction of Chromium Ions (III) with the Help of Bentonite Clays

Cited by 21 publications

References 4 publications

Water and wastewater management in a small tanning facility

Water and wastewater management in a small tanning facility

Використання Відпрацьованих Глинистих Сорбційних Матеріалів У Технологіях Виробництва Шкіри Та Хутра

The Study of Heavy Metal Impacts on Biotic Processes in the Soils of the Urban Ecosystem of the City of Rivne (Ukraine)

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