Based on the theoretical knowledge of vermicomposting, a project was realized for the construction of a three-chamber domestic wooden vermicomposter, in which aerobic degradation of three types of animal excrements (cow, pig, dog) using the earthworm Eisenia andrei was carried out. Before laying the individual excrements to the compost batch, the appropriate input samples were taken for the microbiological examination of the biopathogens. After six months, final samples of the final substrate were taken to determine whether proper compost sanitization took place during the vermicomposting process; according to valid legislation, the bacteria Escherichia coli, Enterocococcus sp. and Salmonella sp. were identified as indicator micro-organisms. After the evaluation of the performed laboratory analyses, it was proved that the use of earthworm bioactivity resulted in elimination or at least significant reduction of the concentrations of these bacterial strains in the final vermicompost samples.

In industrial composting, a large scale of technological processes and devices is used which, to a certain extent, influence also the quality and characteristics of final substrates. Composts are, on the basis of the existing legislation, compared from the point of view of content of hazardous elements, qualitative characteristics, content and quality of humic substances, their impact on germination capacity and the subsequent growth of plants.

VŠB – Technical University of Ostrava, institute of geodesy and mine surveying has been cooperating with Severočeske doly j.s.c. (SD) in important research project since 2007. The main goal is improve control system for opencast mining. Two bucket wheel excavators (K800/103 and KU300/27) were equipped with measurement hardware at the Libouš Lignite Mine (North Bohemia brown coal basin). The position of the bucket wheel centre is computed by means of GNSS data, inclinometer and incremental measurements. Data is transferred to a base. All the values measured are saved in this database. The surface layout of the mine as well as positions of underground geological layers are updated on a regular basis in the digital model of the mine. The main aim of the research is verifying the system in connection to digital model for short time prognosis of qualitative parameters of coal (Ad, Sd, Qr, Wr and MS), continuous automatic computation of mined materials (m3, tons) and continuous checking of creation of the movement surface/plane of the excavator and mining goals. Mine surveyors have a lead role in the working team. The paper describes possibilities of using the GNSS for mine surveying and for production planning.

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