Browsing by Author "Macháčková Jiřina"
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- ItemAccumulation of hexachlorocyclohexanes in Alnus glutinosa biomass(Vodní zdroje Ekomonitor. spol. s.r.o, 2015, 2015-01-01) Antoš Vojtěch; Hrabák Pavel; Macháčková Jiřina; Černík Miroslav; Kvapil Petr; Polách Libor; Šupíková Irena
- ItemMicrobial degradation of chloroethenes: a review(Springer Nature, 2017-01-01) Dolinová Iva; Štrojsová Martina; Němeček Jan; Černík Miroslav; Ševců Alena; Macháčková Jiřina
- ItemOccurrence of perchloroethylene in surface water and fish in a river ecosystem affected by groundwater contamination(Springer, 2016-01-01) Macháčková Jiřina; Petruželková Anna; Wittlingerová Zdena; Zimová Magdalena
- ItemProcedure for Complex Diagnostics of Well Conditions(2014-01-01) Macháčková Jiřina; Parma Petr; Procházka Martin; Kvapil Petr
- ItemResearch of Biotechnology for Cb and Hch Isomers Removal from Pit Water(2014-01-01) Macháčková Jiřina; Jiříčková Lucie; Nosek Jaroslav; Hrabák Pavel
- ItemResults of monitoring and assessment of natural attenuation of oil residual contamination at Hradcany site in 2015(2015-01-01) Černík Miroslav; Macháčková Jiřina
- ItemStratification of chlorinated ethenes natural attenuation in an alluvial aquifer assessed by hydrochemical and biomolecular tools(Elsevier, 2017-01-01) Němeček Jan; Dolinová Iva; Macháčková Jiřina; Špánek Roman; Ševců Alena; Lederer Tomáš; Černík MiroslavBiomolecular and hydrochemical tools were used to evaluate natural attenuation of chlorinated ethenes in a Quaternary alluvial aquifer located close to a historical source of large-scale tetrachloroethylene (PCE) contamination. Distinct stratification of redox zones was observed, despite the aquifer's small thickness (2.8 m). The uppermost zone of the target aquifer was characterised by oxygen- and nitrate-reducing conditions, with mixed iron- to sulphate-reducing conditions dominant in the lower zone, along with indications of methanogenesis. Natural attenuation of PCE was strongly influenced by redox heterogeneity, while higher levels of PCE degradation coincided with iron- to sulphate reducing conditions. Next generation sequencing of the middle and/or lower zones identified anaerobic bacteria (Firmicutes, Chloroflexi, Actinobacteria and Bacteroidetes) associated with reductive dechlorination. The relative abundance of dechlorinators (Dehalococcoides mccartyi, Dehalobacter sp.) identified by real-time PCR in soil from the lower levels supports the hypothesis that there is a significant potential for reductive dechlorination of PCE. Local conditions were insufficiently reducing for rapid complete dechlorination of PCE to harmless ethene. For reliable assessment of natural attenuation, or when designing monitoring or remedial systems, vertical stratification of key biological and hydrochemical markers should be analysed as standard, even in shallow aquifers.
- ItemTechnical and economical study of remediation of the Hajek quarry dump pile(2015-01-01) Černík Miroslav; Nosek Jaroslav; Macháčková Jiřina; Polách Libor; Hrabák Pavel; Parma Petr; Kvapil Petr