Počet záznamů: 1
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 ASEP 0533136 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název 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. Tvůrce(i) Krystyník, Pavel (UCHP-M) RID, SAI, ORCID
Mašín, P. (CZ)
Krušinová, Z. (CZ)
Klusoň, Petr (UCHP-M) RID, ORCID, SAIČíslo článku 2894 Zdroj.dok. Water. - : MDPI - ISSN 2073-4441
Roč. 12, č. 10 (2020)Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova electrocoagulation ; water treatment ; site remediation Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering CEP TA04020130 GA TA ČR - Technologická agentura ČR TH03030388 GA TA ČR - Technologická agentura ČR Způsob publikování Open access Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000585334900001 EID SCOPUS 85095978193 DOI https://doi.org/10.3390/w12102894 Anotace A 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. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2021 Elektronická adresa https://www.mdpi.com/2073-4441/12/10/2894
Počet záznamů: 1