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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
New sampling approaches for evaluation of real remediation studies
 Kroupová, Kristýna ; Cajthaml, Tomáš (advisor) ; Innemanová, Petra (referee)
This diploma thesis has been carried out as a part of the project Utilization of long term (passive) sampling methods combined with in situ microcosms for assessment of (bio)degradation potential (PASSES). In the frame of the project groundwater remediation took place in the premises of Farmak a.s. in Olomouc using a pilot photooxidation unit and efficiency of the remediation was monitored through passive and active sampling methods. Pilot photooxidation unit is a technology based on the H2O2/UV-C photochemical oxidation of organic pollutants. In this work optimization tests of the pilot photooxidation unit were performed. The residence time of the groundwater in the photoreactors, required for its sufficient decontamination from pharmaceuticals and aromatic hydrocarbons, was 2.5 hours. 91% degradation of the pharmaceuticals and 80% degradation of aromatic hydrocarbons were reached during this interval. Although the removal efficiency of the pharmaceuticals by the photooxidation unit was high, the pilot photooxidation unit was not able to effectively remove the pharmaceuticals at the studied locality. By comparing the results of the pharmaceuticals from active and passive groundwater sampling during the remediation attempt, passive Polar Organic Chemical Integrative Sampler (POCIS) was found to be...
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