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Recycling of powdered building wastes in environmental technologies

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00354661" target="_blank" >RIV/68407700:21110/19:00354661 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.5593/sgem2019V/4.2/S04.017" target="_blank" >https://doi.org/10.5593/sgem2019V/4.2/S04.017</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5593/sgem2019V/4.2/S04.017" target="_blank" >10.5593/sgem2019V/4.2/S04.017</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Recycling of powdered building wastes in environmental technologies

  • Original language description

    Concrete slurry waste (CSW) from the production of prestressed poles production in original and Fe-modified form (CSWFe) was studied as potential adsorbent of environmentally risk cations (Cd2+, Pb2+) and oxyanions (AsO43- and CrO42-) from contaminated waters. Structural, surface and chemical properties of adsorbents were characterized by Powder X-ray diffraction (XRD), X-ray fluorescence (XRF), Specific surface area (SBET) and Scanning electron microscopy (SEM). Adsorption experiments ran in a batch manner at laboratory temperature (20°C) with the model solutions of toxic ions. The modification of CSW with FeII increased its adsorption selectivity to anions about 20% at a lower sorbent consumption. The cations (Pb2+ and Cd2+) were adsorbed quantitatively (~100%) on CSW at the sorbent consumption of 10 - 120 g per 1 g of contaminant. The adsorption of AsO43- and CrO42- on CSWFe reached > 95% for AsO43-and 40-60% for CrO42-, at the sorbent consumption of 80 - 200 g per 1 g of contaminant.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20701 - Environmental and geological engineering, geotechnics

Result continuities

  • Project

    <a href="/en/project/GA19-11027S" target="_blank" >GA19-11027S: Concrete slurry - hazardous waste or secondary raw material?</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    19th International Multidisciplinary Scientific Geoconference SGEM 2019

  • ISBN

    978-619-7408-89-8

  • ISSN

    1314-2704

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    121-126

  • Publisher name

    STEF92 Technology Ltd.

  • Place of publication

    Sofia

  • Event location

    Albena

  • Event date

    Jun 30, 2019

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article