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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Návrh využití území bývalého lignitového dolu v Kyjově / Proposal for use of the former lignite mine in Kyjov

Havala, Josef January 2015 (has links)
The master thesis deals with a proposal to revitalize the former lignite mine in Kyjov, Czech Republic, which belongs to a brownfield sites. The goal is to propose possible use of the area, which is currently largely without effective utilization. I have divided the monitored area to four locations, due to the size of area. Every location has got different proposed use. In each location will be evaluated the new usage due to their surroundings and its possibilities. At the end, evaluation of the entire project is done.
2

Lignitové hydrokoloidy / Lignite hydrocolloids

Macháčková, Mirka January 2013 (has links)
This diploma thesis deals with the study of non-energy use of lignite. The main objective was to find an optimal recipe for the preparation of liquid and semi-solid (paste) hydrocolloids from the South Moravian lignite using the planetary mill and select the suitable dispersion medium with emphasis on possible use in agriculture. The used solutions were 10, 20 a 40 % w/w solutions of urea; 5, 10 a 15 % w/w solutions of citric acid; 1, 5 a 10 % w/w solutions of potassium chloride and deionized water. The best weight ratio for the preparation of lignite hydrocolloids is 1 part of lignite and 2 parts of the solution. The next part of this work is the isolation of humic acid from lignite hydrocolloids. The weight of isolated humic acids and amount of ash were compared to the used lignite hydrocolloids. Rheological behavior, particle size distribution, stability and thermal stablity of prepared lignite hydrocolloids were investigated. Correlation microscopy was used for determining elemental composition of selected location in the sample of lignite hydrocolloid.

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