Brown Coal Bulletin, 2020 (vol. 60), issue 2
Proposal for the extension of the BPEJ system of anthropogenic soils
Ing. Jan Vopravil, Ph.D., Ing. Renáta Zárubová, Ph.D., Ing. Tomáš Khel, Ing. Ladislava Kohoutová
Zpravodaj Hnědé uhlí 2020, 60(2)
Anthropogenic soils are soils whose formation and development has stimulated or influenced a human by his activities. One of such cases is the creation of anthropogenic soils in the framework of agricultural reclamations eliminating mining activities in the countryside. Reclaimed land is returned to the Agricultural Land Fund (ZPF) after the end of biological reclamation and should be assigned a code for the evaluation of soil and ecological unit (BPEJ). However, in the case of anthropogenic soils we are facing the fact that there are no separate codes for this specific soil type to inform the owner or user about the origin and nature of the land....
Current pedological issues of reclaimed sites of the area
RNDr. Michal Řehoř, Ph.D., Ing. Pavel Schmidt
Zpravodaj Hnědé uhlí 2020, 60(2)
The Brown Coal Research Institute has long term cooperation with the Severočeské doly a.s. (North Bohemian Mines) in the field of restoration problems. The target of this cooperation was mainly necessity of the application of the fertilizable soils. At present, the main problems appear to be the extreme alkaline soil reaction of any locality soils, the occurrence of phytotoxic and sterile areas and the methodology of setting up areas left to natural succession. The attention is also devoted to the loss of seedlings caused by dry periods. The article deals with the methodology of the survey, with the localisation of different individual types of areas,...
Preparation of pelletized adsorbent from fly ash of power station
Ing. Zuzana Strolená, Ing. Marek Staf, Ph.D., Ing. Barbora Miklová, Ing. Lukáš Anděl, Jaroslav Kusý, RNDr. Ing. Josef Valeš, Ing. David Koloušek, CSc.
Zpravodaj Hnědé uhlí 2020, 60(2)
The study is dedicated to the research of the zeolite preparation from waste fly ash with subsequent treatment of pelletization. No additive, but only process water, was used for mechanical formation of the product. The prepared pellets were tested in laboratory as a potential adsorbent for carbon dioxide capture from flue gas. Based on long-term experience and the results of previous experiments, realized with an extensive sample base, only one suitably selected fly ash was included in this study. The influence of the pelletization process on the adsorption capacity of the product, measured using a laboratory fixed bed flow-through apparatus, is discussed....
Installation of the bucket with ESCO teeth on bucket wheel excavator KU300 at the ČSA mine
Ing. Vlastimil Moni, Ph.D., Ing. Lubomír Donát
Zpravodaj Hnědé uhlí 2020, 60(2)
The article provides the description of the test deployment of the new bucket in real operating conditions of the open pit mine and an assessment of the operational surface warming of the newly used geometry of teeth in comparison with the original teeth on two excavators KU 300 during mining at the ČSA mine. The aim was to verify the functionality of the new bucket with new ESCO U35T teeth in the operating conditions compared to the original solution and to ensure a more suitable tooth geometry for the given mining conditions.