Wyczerpywanie się nieodnawialnych zasobów naturalnych prowadzi do poszukiwania nowych kierunków działań, które mają na celu prowadzenie działalności produkcyjnej w myśl zasad zrównoważonego rozwoju. Instytut Gospodarki o Obiegu Zamkniętym wskazuje zadania do wykonania na polskiej drodze do gospodarki o obiegu zamkniętym (Circular Economy). Wśród nich można wymienić „ograniczenie zależności przedsiębiorstw od surowców pierwotnych", które mają na celu zwiększenie wykorzystania surowców wtórnych.
Wyczerpywanie się nieodnawialnych zasobów naturalnych prowadzi do poszukiwania nowych kierunków działań, które mają na celu prowadzenie działalności produkcyjnej w myśl zasad zrównoważonego rozwoju. Instytut Gospodarki o Obiegu Zamkniętym wskazuje zadania do wykonania na polskiej drodze do gospodarki o obiegu zamkniętym (Circular Economy). Wśród nich można wymienić „ograniczenie zależności przedsiębiorstw od surowców pierwotnych", które mają na celu zwiększenie wykorzystania surowców wtórnych.
The paper presents the water quality of the Quaternary aquifer in the area of reclaimed open pit Maczki-Bór in the light of results of monitoring investigations carried out in 1995-2014. The area consists of mine workings, the reclaimed field of Bór Zachód, and the area of Bór Wschód, which is under reclamation. Processing and mining material from coal mines is mainly deposited in the mine excavations. In the northern part of the Bór Zachód field, there is a municipal waste dump for the Sosnowiec city. The monitoring network consists of 12 piezometers monitoring groundwater of the Quaternary aquifer, 3 monitoring points on the major dewatering canals, and 2 points on the Biała Przemsza River (upstream and downstream of the cumulative mine dewatering discharge). The monitoring of the leachate is carried out in 2 observation wells located in the deposited rock on the dumping ground of Bór Wschód. This article discusses the significantly spatially diverse chemistry and quality of groundwater and surface water affected by varied anthropopressure.
The present paper discusses the influence of geochemical properties on biogenic deposits in the Wilkostowo mire near Toruń, central Poland. The analysed core has allowed the documentation of environmental changes between the older part of the Atlantic Period and the present day (probably interrupted at the turn of the Meso- and Neoholocene). In order to reconstruct the main stages in the sedimentation of biogenic deposits, we have used stratigraphic variability of selected litho-geochemical elements (organic matter, calcium carbonate, biogenic and terrigenous silica, macro- and micro-elements: Na, K, Mg, Ca, Fe, Mn, Cu, Zn, Pb, Cr and Ni). The main litho-geochemical component is CaCO3; its content ranges from 4.1 per cent to 92 per cent. The variability of CaCO3 content reflects mainly changes in hydrological and geomorphological conditions within the catchment area. The effects of prehistoric anthropogenic activities in the catchment of the River Tążyna, e.g., the use of saline water for economic purposes, are recorded in a change from calcareous gyttja into detritus-calcareous gyttja sedimentation and an increased content of lithophilous elements (Na, K, Mg and Ni) in the sediments. Principal component analysis (PCA) has enabled the distinction the most important factors that affected the chemical composition of sediments at the Wilkostowo site, i.e., mechanical and chemical denudation processes in the catchment, changes in redox conditions, bioaccumulation of selected elements and human activity. Sediments of the Wilkostowo mire are located in the direct vicinity of an archaeological site, where traces of intensive settlement dating back to the Neolithic have been documented. The settlement phase is recorded both in lithology and geochemical properties of biogenic deposits which fill the reservoir formed at the bottom of the Parchania Canal Valley.