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61	Zhodnocení zátěže půd a sedimentů v oblasti řeky Jihlavy těžkými kovy / Assessment of soils and sediments contamination by heavy metals in the region Jihlava river Marek, Milan January 2011 (has links) This diploma thesis deals with a potential contamination of hazardous metals of soil and sediments. The metals cadmium, copper, lead and mercury were chosen, their specification, limited concentration and methods of determination are also described in thesis. City Jihlava and its surroundings were chosen for evaluating pollution of the soil and sediments in this area. In collected samples of the soil and sediments presence of copper, cadmium, lead and mercury were detected via atomic absorption spectrometry (F-AAS, ET-AAS, AMA 254). The metal pollution of soils and sediments by hazardous elements in Jihlava River and in Jihlava region was evaluated.
62	Stanovení těžkých kovů v půdách a sedimentech v oblasti Revúce / Determination of heavy metals in soils and sediments in the region Revúce Kováč, Lukáš January 2011 (has links) This thesis aims to assess the extent of contamination of soil and sediment with risk metals in Jelšava. The main polluter of the environment in this area is the magnetize factory. Sampling of soils and sediments were made in three seasons. Sampling times were staggered to represent different seasons and to take into account the impact of the seasons on the obtained values of the concentrations in soil and sediment. Sampling sites were selected according according to the different distances from the factory and according to the different loading of roads. In each of the collected samples were determined concentrations of the elements copper, lead, zinc, nickel, manganese, mercury, cadmium and vanadium. Copper, lead, zinc, nickel and manganese were analyzed by atomic absorption spectrometry with atomization in a flame (F AAS), cadmium and vanadium were determined by atomic absorption spectrometry with electrothermal atomization (ET AAS). For the determination of mercury was used mercury analyzer (AMA).
63	Stanovení rizikových prvků v půdách s různým antropogenním znečištěním pomocí sekvenční extrakční analýzy / Determination of hazardous elements in soils with different anthropogenic contamination using sequential extraction analysis Židek, Michal January 2012 (has links) This diploma thesis deals about determination of hazardous elements and their mobility in soils from Brno and Ostrava. For extraction of soil samples was used sequential extraction by Tessier and BCR sequential extraction. Extraction by nitric acid was also used. Mercury was determinated by the advanced mercury analyser AMA 254. Lead, copper and zinc were determinated by the flame atomic absorption spectrometry. Cadmium and vanadium were determinated by the electrotermic atomic absorption.
64	Analýza signálů z transportních a stochastických charakteristik detektorů záření / Signal analysis of transport and stochastic processes of emission detectors Míšek, David January 2008 (has links) This Diploma thesis deals with properties of CdTe detectors. This material is ranked among optical sensitive group. This thesis can be thematically divided into two basic parts. The first part describes properties of both elements and the chemical adduct. Selected properties show perfections of the material, which are specializing it to optical area of application. The end of this part contains description of contact metal-semiconductor. This problem is important to comprehension principle the material contact. In second part there were making many measurements. For more accurately compare were first measurements doing without light and then with light. During making measurement was changed wave length and temperature of sample. Key factors were Volt-Ampere characteristics and resistance result with changed temperature and wave length impact to the sample. For better accuracy measurements were done many times. All of data from measurement were cultivate by PC Easyplot programme.
65	Jordläkande växter : växters kapacitet att med fytoremediering rena förorenad mark - med exempel och förslag för Ockelbo järnvägsstation Olsson, Karin January 2011 (has links) Det här arbetet ger en orientering i växters olika förmågor att rehabilitera miljöskador och belyser möjligheten att använda växternas essentiella och varierande förmågor i miljöarbetet. De ämnen som har skadlig inverkan på miljön kallas för miljögifter. Både globalt och i Sverige har omloppet av många miljögifter ökat markant de senaste århundradet. Växter kan användas för att rena förorenad mark. De olika processerna när växter renar mark, vatten och luft från föroreningar samlas under begreppet fytoremediering. Det finns olika metoder och reningsprocesser inom fytoremediering. Växter kan dels ta upp och lagra föroreningar, bryta ned dem till ofarliga beståndsdelar samt förhindra så att de inte sprider sig ut i ekosystemet. I det här examensarbetet har föroreningssituation vid järnvägsstationen i Ockelbo använts som exempel för att konkretisera fytoremediering till en specifik plats. En beskrivning av de till platsen relaterade föroreningarna arsenik, bly, kadmium, kvicksilver, koppar, zink, PAH (polycykliska aromatiska kolväten) och olja presenteras tillsammans med aktuella fytoremedieringsmetoder och grödor för respektive förorening. Som slutsats bedöms fytoremediering vara möjligt för järnvägsstationen i Ockelbo. Fördelar och nackdelar med fytoremediering på stationen lyfts fram och möjliga parallella användningsområden medan fytoremedieringen pågår diskuteras. Vidare diskussion förs kring fytoremediering, miljöfrågor och rådande regelverk och logistik i Sverige. Arbetet innefattar ett förslag till utformning av fytoremediering på stationsområdet. Förslaget inkluderar ett växtval av olika fytoremedieringsgrödor lämpliga för platsen. Phytoremediation Phytoextraction Hyperaccumulation Phytodegradation Rhizodegradation Phytostimulation Phytoevaporation Vegetative Cover System Phytostabilization Hydraulic Control Rhizofiltration fytoremediering jordläkande växter Fytoextraktion Hyperackumelering Fytodegradering Rotzonsnedbrytning Fytostimulering Fytotäckning Fytoavdunstning Fytostabilisering Fytostabilisering Rhizofiltrering Ockelbo Järnvägsstation Arsenik Bly Kadmium Kvicksilver Koppar Zink PAH Olja oljeföroreningar förorenad mark marksanering fytosanering in-situ växter

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