Brown Coal Bulletin, 2018 (vol. 58), issue 4
The forgotten sandstone locations in Ústí nad Labem and surroundings
RNDr. Jiří Beránek, Ing. Beáta Korandová, Ph.D., Ing. Lukáš Žižka, Ing. Jaroslav Mudruňka
Zpravodaj Hnědé uhlí 2018, 58(4)
The article wants to remind old sandstone locations in ústí nad Labem and its surroundings. The Upper Cretaceous (Santonian) sandstones are locally very decorative; however, they are soft and less resistant. The process of stone weathering is briefly described explaining why the stone formely used as a cheap construction material (together with basalts) rapidly degrades. There are original photos and a map with main locations.
Methodology of technical reclamation, application of fertilizable soil and establishment of areas retained for the natural succession in the conditions Most Basin
RNDr. Michal Řehoř, Ph.D., Ing. Pavel Schmidt, Ing. Václav Novák, Ing. Kamila Dobešová
Zpravodaj Hnědé uhlí 2018, 58(4)
The majority of Czech brown coal reserves have been exploited in the Most Basin today. Opencast mining of brown coal casually causes vast landscape damages. Therefore reclamation work has acquired a great significance. The survey methodology and methodology of reclamation works of the different dump and mine areas described in this article was very important target of the project solved for the Czech Ministry of Agriculture. The article summarises methodology of survey works, methodology of fertilizable soils application used today in operation, methodology of natural succession and geological park founding.
Aquatic macrophyte survey in artificial lakes Medard, Most and Milada
Mgr. Martina Čtvrtlíková, Ph.D., Mgr. Andrea Kučerová, Ph.D., RNDr. Pavel Rychtecký, Ph.D., RNDr. Petr Blabolil, Ph.D., RNDr. Jakub Borovec, Ph.D.
Zpravodaj Hnědé uhlí 2018, 58(4)
Aquatic macrophyte survey was conducted in three artificial lakes Medard, Most and Milada between 2016 and 2017 to evaluate their early-succession shortly after a hydric reclamation of the original open-pit coal mines. Species richness and relative abundance (plant cover, mean water column grown by macrophytes), as well as maximum depth of macrophytes were determined along the depth gradient in representative belt transects. Vascular plants were represented by emerged and floating-leaved species, as well as submerged species that grew down to 8-9 m depths in all three lakes. Deep littoral at 13-14 m depth was covered by dominant macroscopic algae in...
Formation of fly ashes for their utilisation for CO2 capture
Ing. Lukáš Anděl, Jaroslav Kusý, RNDr. Ing. Josef Valeš, Ing. Petr Svoboda, CSc.
Zpravodaj Hnědé uhlí 2018, 58(4)
The article deals with the pressing process optimization of different types of secondary energy products - fly and bottom ashes from large energy and heat sources in the Czech Republic burning various types of fuel. These ashes have different composition with regard to the content of SiO2 and CaO and require fairly precise amount of process water and the specific procedure for pressing the mixture. Resulting pressings are used within other experiments as possible sorption materials in the process of carbon dioxide capture and storage.
Continuous monitoring of water levels in the area of Slatinice wastedump
Ing. Lukáš Žižka, Ing. Mária Jarolimová, Ph.D., Ing. Beáta Korandová, Ph.D.
Zpravodaj Hnědé uhlí 2018, 58(4)
Intensive hydrogeological exploration of Slatinice wastedump and its surroundings has been carried out since the year 2013. Its goal is to clarify the mode of groundwater flow and to ensure a reduction in strained groundwater levels encountered in these collectors. In the course of exploration works dozens of monitoring wells into the encountered collectors have been installed and equipped. Currently, more than half of the realized monitoring wells are fitted with monitoring devices produced by the company Fiedler AMS Ltd. The article summarizes the experience gained and the results of the completed hydrogeological monitoring system.