Górnictwo i Geoinżynieria
Loading...
ISSN 1732-6702
Issue Date
2005
Volume
R. 29
Number
Nr 4
Description
Journal Volume
Górnictwo i Geoinżynieria
R. 29 (2005)
Projects
Pages
Articles
Budowa nowego składowiska odpadów na zlikwidowanym starym składowisku zlokalizowanym na terenie byłej kopalni odkrywkowej rud metali nieżelaznych w RFN
(Wydawnictwa AGH, 2005) Barchański, Bronisław
Municipal waste management is an integral part of environmental protection. Western European countries produce significant amounts of municipal wastes, a part of which is disposed on landfill sites. The present article is devoted to the adaptation of an old landfill site located on a former outcrop to the present legal and technical-organizational state currently in force in the Federal Republic of Germany.
Niemieckie górnictwo węglowe i ochrona środowiska na przykładzie gospodarki odpadami w DSK Anthrazit Ibbenbüren GmbH
(Wydawnictwa AGH, 2005) Czaja, Piotr
German hard coal mining industry has been considerably decreased in recent years and finally reached annual output of 26 mln tons. One very modern mine is colliery »DSK Anthrazit Ibbenburen GmbH« with annual output of 1.8 mln tons. The mine is connected with coal power station Block B of 760 MW power. However this coalmine produces a great amount of waste material (mostly different kind of rock and fly ash), all of them are manage very properly and not polluting air, water and surrounding areas. Mine co-operates with local authorities creating common model of waste material utilization. Paper shows the problems of planning and building of waste rock heap and way of utilization of hundreds thousand tons of fly ash for constructing underground gallery's lining called »Kombiausbau system Ibbenburen«.
Ekologiczne i ekonomiczne uwarunkowania wykorzystania zasobów przy produkcji kruszyw łamanych
(Wydawnictwa AGH, 2005) Czopek, Kazimierz
There are in production process of broken aggregates the contrary ecological and economic purposes. From ecological point of view it should be tried to do the maximization in using up resources. So far the production of aggregates needs to use several stages of feed crushing. As the effect there is created more and more small fractions treated as waste. From economic point of view the best situation would be to sell the highest price (the most expensive) fraction: chippings, voussoir, breakstone. The mediate solution can be to offer the lowest granulation fractions. This paper describes the optimum way of choice in this matter, concerning the kind of mineral necessary for recast process, demand of aggregates, prices of particular fraction of aggregates.
Wykorzystanie predyktorów typu neural network do prognozowania szeregów czasowych
(Wydawnictwa AGH, 2005) Gworek, Sylwia; Utrata, Arkadiusz
This article presents consideration for forecasting activity of economic phenomenon described behind assistance of short time range concerning employment artificial neural network. It presents short characteristic of artificial neural network in first along with possible areas of economic forecasting activities, can find application. The second part of the paper includes an estimation of efficiency of selected economic phenomenon with an application of artificial neural networks.
Badanie wpływu zbrylonych popiołów ze spalarni odpadów komunalnych na własności zawiesin popiołowo-wodnych
(Wydawnictwa AGH, 2005) Kępys, Waldemar; Piotrowski, Zbigniew; Wisła-Walsh, Ewa
Dense mixtures of conventional fly ashes and water are utilized in many modern mining operations as an underground mine paste backfill, structural fills, fire prevention. The use of MSW fly ashes in such operations are limited as a result of their chemical composition. In this case, the compaction process, accomplished with the use of binder such as Portland cement and/or others, immobilizes the reactive components of this waste and results in the formation of strong granules which remain impervious to leaching. This unables addition of compacted waste to the mixture of fly ash-water. The main purpose of this paper is to evaluate the influence of addition of compacted MSW fly ashes on the properties of fresh and hardened fly ash-water pastes.