A recyclable adsorbent for salinized groundwater: Dual-adsorbent desalination and potassium-exchanged zeolite production

The IGPC's Engineering Department designed basic technological and machine projects for a granulated zeolite production plant, on the basis of which a pilot plant with an initial capacity of 5,000 t/y was constructed in 1984, within Birac - Zvornik production complex. The technology in these projects was developed in the laboratories of the IGPC.Several goals were realized by designing a granulated zeolite production plant. This technology is one of the newest state of the art high tech technologies. The product meets all quality demands, as well as environmental regulations, by which granulated zeolite production for various uses was developed. The granulated zeolite production process is fully automatized, and the product has uniform quality. There is no waste material in granulated zeolite production, because all products with unsatisfactory quality are returned to the process. The production process can be controlled manually, which is necessary during start - up, and repairs.

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The development of technology for production of zeolites from fly-ash from Troitskaya power plant

Chimica Techno Acta ◽

10.15826/chimtech.2021.8.1.11 ◽

2021 ◽

Vol 8 (1) ◽

pp. 20218111

Author(s):

V. A. Snegirev ◽

V. M. Yurk

Keyword(s):

Fly Ash ◽

Power Plant ◽

Pore Diameter ◽

Silicon Oxide ◽

Exchange Capacity ◽

Static Exchange Capacity ◽

Average Pore ◽

Hydrochemical Synthesis ◽

Bet Method ◽

Zeolite Production

The study examines the technology of processing fly ash from Troitskaya power plant for the production of zeolite. The paper presents the results of laboratory studies evaluating the suitability of fly ash from Troitskaya power plant for the production of zeolites and the development of the zeolite production process. Fly ash contains a small amount of heavy metals that can complicate processing, but contains a large amount of silicon oxide. The technology consists of high-temperature alkaline activation of fly ash and hydrochemical synthesis. The resulting powder has a specific surface area of 89.7 m2/g, determined by the BET method, and an average pore diameter of 0.345 μm. The static exchange capacity was 220 mg/g.

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Study on the adsorption of Hg(ii) by one-pot synthesis of amino-functionalized graphene oxide decorated with a Fe3O4 microsphere nanocomposite

RSC Advances ◽

10.1039/c6ra16904j ◽

2016 ◽

Vol 6 (88) ◽

pp. 84573-84586 ◽

Cited By ~ 11

Author(s):

Mingqiang Liu ◽

Zhongan Tao ◽

Huicai Wang ◽

Fei Zhao ◽

Qiang Sun

Keyword(s):

Aqueous Solution ◽

Graphene Oxide ◽

Functionalized Graphene ◽

One Pot ◽

Functionalized Graphene Oxide ◽

One Pot Synthesis ◽

Recyclable Adsorbent

An easy one-pot solvothermal strategy approach has been reported on the preparation of ethylenediamine (EDA) decorated with magnetite/graphene oxide (EDA–Fe3O4/GO) nanocomposites and employed as a recyclable adsorbent for Hg(ii) in aqueous solution.

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