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Ecologically Non-Invasive Decontamination of Natura 2000 Locality from Old Deposits of Hexavalent Chromium and Bivalent Nickel by Modular Electrocoagulation Combined with Ca(OH)2 Addition.

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    SYSNO ASEP0533136
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevEcologically Non-Invasive Decontamination of Natura 2000 Locality from Old Deposits of Hexavalent Chromium and Bivalent Nickel by Modular Electrocoagulation Combined with Ca(OH)2 Addition.
    Tvůrce(i) Krystyník, Pavel (UCHP-M) RID, SAI, ORCID
    Mašín, P. (CZ)
    Krušinová, Z. (CZ)
    Klusoň, Petr (UCHP-M) RID, ORCID, SAI
    Číslo článku2894
    Zdroj.dok.Water. - : MDPI
    Roč. 12, č. 10 (2020)
    Poč.str.13 s.
    Jazyk dok.eng - angličtina
    Země vyd.CH - Švýcarsko
    Klíč. slovaelectrocoagulation ; water treatment ; site remediation
    Vědní obor RIVCI - Průmyslová chemie a chemické inženýrství
    Obor OECDChemical process engineering
    CEPTA04020130 GA TA ČR - Technologická agentura České republiky
    TH03030388 GA TA ČR - Technologická agentura České republiky
    Způsob publikováníOpen access
    Institucionální podporaUCHP-M - RVO:67985858
    UT WOS000585334900001
    EID SCOPUS85095978193
    DOI10.3390/w12102894
    AnotaceA modular electrocoagulation unit, supported by Ca(OH)2 addition to treated water, wasoperated in the vicinity of a Natura 2000 site for the removal of Cr6+ or Ni2+ from contaminated groundwater. The process was performed at a constant flow rate of 350 L/h. Day 0 concentrations of Cr6+ and Ni2+ started at 91.6 mg/L for Ni2+ and 43 mg/L for Cr and during testing, were decreased by 15%–25%. Residual concentrations of Crtot. and Ni2+ below the required limits of 0.5 mg/L for Crtot. and 0.8 mg/L for Ni2+ can be achieved with the electrocoagulation unit and total removal efficiencies often exceeded 98%. The overall economic assessment showed its feasible application for removal of Cr6+ and Ni2+ on sites with requirements of high environmental protection standards. The polluted area was about 150 × 150 m (22,500 m2), and it contained approximately 78,750 m3 of water contaminated with Cr6+ and Ni2+ (over 41 and 91 mg/L, respectively). The modular arrangement might allow a scaling up. The process’ output could be thus increased according to the number of EC modules in operation.
    PracovištěÚstav chemických procesů
    KontaktEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Rok sběru2021
    Elektronická adresahttps://www.mdpi.com/2073-4441/12/10/2894
Počet záznamů: 1