Removal of Zinc Ions from Acid Aqueous Solutions and Acid Mine Drainage Using Zeolite-Bearing Tuff

Zendelska, Afrodita; Golomeova, Mirjana; Golomeov, Blagoj; Krstev, Boris

doi:10.1007/s10230-018-0560-y

Cited by 10 publications

(4 citation statements)

References 25 publications

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“…The changes in the adsorption capacity of the modified bentonite toward Cu(II) could be a combination of the alteration in H + competition ability, the surface charges of modified bentonite, and the existence forms of Cu(II). With increasing pH, the H + concentration in the suspension decreased, thereby, the competition ability of H + for adsorption sites on the modified bentonite surface dropped (He et al 2019, Zendelska et al 2018. Thus, the dropping in H + competition ability would favor the modified bentonite adsorb Cu(II).…”

Section: Adsorption Study In Single Systemmentioning

confidence: 99%

Archives of Environmental Protection

Hu,

Wang,

Yan

et al. 2022

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An organobentonite modified with an amphoteric surfactant, tallow dihydroxyethyl betaine (TDHEB), was used as an adsorbent to simultaneously remove Cu(II) and phenol from wastewater. The characteristic of the organobentonite (named TDHEB-bentonite) was analyzed by X-ray diffraction, Fourier-transform infrared spectra and nitrogen adsorption-desorption isotherm. Batch tests were conducted to evaluate the adsorption capacities of TDHEB-bentonite for the two contaminants. Experiment results demonstrated that the adsorption of both contaminants is highly pH-dependent under acidic conditions. TDHEB-bentonite had about 2.0 and 5.0 times higher adsorption capacity toward Cu(II) and phenol, respectively, relative to the corresponding raw Na-bentonite. Adsorption isotherm data showed that the adsorption processes of both contaminants were well described by Freundlich model. Kinetic experiment demonstrated that both contaminants adsorption processes correlated well with pseudo-second-order model. Cu(II) had a negative impact on phenol adsorption, but not vice versa. Cu(II) was removed mainly through chelating with the organic groups (-CH 2 CH 2 OH and -COO-) of TDHEB. Otherwise, partition into the organic phase derived from the adsorbed surfactant was the primarily mechanism for phenol removal. Overall, TDHEB-bentonite was a promising adsorbent for removing Cu(II) and phenol simultaneously from wastewater.

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Section: Adsorption Study In Single Systemmentioning

confidence: 99%

Archives of Environmental Protection

Hu,

Wang,

Yan

et al. 2022

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“…Zeolite‐bearing stilbite (tectosilicate minerals of the zeolite group) was investigated for AMD treatment and metal adsorbent (Zendelska, Golomeova, Golomeov, & Krstev, 2019). The use of stilbite raised the pH from 3.90 to 5.36 while zinc was removed by 74%.…”

Section: Mine Drainage Remediation Technologymentioning

confidence: 99%

Mine drainage: Remediation technology and resource recovery

Viadero

Zhang

et al. 2020

Water Environment Research

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Drainage from current and historic mining operations remains a persistent environmental problem. Numerous research and development efforts were made in 2019 with a goal to minimize the impact of mine drainage on the environment, while other research endeavors addressed the mine drainage issue from a different perspective, where mine drainage was considered a resource for water and valuable products, such as metals, sulfuric acid, and rare earth elements. Thus, this review has two main sections: (a) focusing on research efforts in mine drainage remediation technology, and (b) emphasizing advances in resource recovery from mine drainage. The first section covers traditional and emerging passive and active treatment technologies. The second section summarizes resource recovery efforts using various technologies, such as selective precipitation, membrane process, and biological systems.

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“…The Republic of North Macedonia is rich in inorganic materials with a wide range of potential application as adsorbents, including trepel [4,5], diatomaceous earth [6,7], perlite [8] and zeolite-bearing tuff [9], but using sludge-based activated carbon as adsorbent also achieves the goal of waste utilization. In the past few years, the European Union promoted ecological management of such wastes by introducing directives regarding sewage sludge management and therefore classical methods, such as storage, are being replaced by methods leading to waste stabilization and safe recycling [10] The aim of this paper is preparation of activated carbon from sewage sludge from Volkovo wastewater treatment plant in Skopje, the Republic of North Macedonia, its characterization, and possibility of using the material as adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Sludge-Based Activated Carbon

Pancevska¹,

Zendelska²

2022

NRT

Self Cite

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Sewage sludges produced from wastewater treatment plants continue to create environmental problems in terms of volume and method of valorization. Thermal treatment of sewage sludge is considered as an attractive method in reducing the sludge volume, which at the same time produces reusable by-products.Produced sewage sludge from wastewater treatment plants is carbonaceous in nature and rich in organic materials, therefore it has the potential to be converted into activated carbon. Converting sewage sludge into activated carbon based on its high content of organic components not only solves the disposal problem of sewage sludge, but also turns solid waste into useful material in producing adsorbent for wastewater treatment.In this study, the sludge-based activated carbon was obtained using the sewage sludge from the Volkovo wastewater treatment plant in Skopje by chemical activation using 25% ZnCl 2 solution and carbonization at a temperature of 600˚C for 50 minutes. The prepared sludge-based activated carbon was characterized using a scanning electron microscope, an X-ray diffractometer and well-known standard methods, such as ash and moisture content, and adsorption capacity through the iodine number method.The obtained sludge-based activated carbon has a macro-porous structure and exchangeable cations that makes it suitable as adsorbent for wastewater treatment.

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Removal of Zinc Ions from Acid Aqueous Solutions and Acid Mine Drainage Using Zeolite-Bearing Tuff

Cited by 10 publications

References 25 publications

Archives of Environmental Protection

Archives of Environmental Protection

Mine drainage: Remediation technology and resource recovery

Preparation and Characterization of Sludge-Based Activated Carbon

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