Wyniki wyszukiwania - BazTech

1

Wyzwanie związane z wyciekami

Ramm Klara

Technologia Wody

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2021

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Nr 2 (76)

56--61

2

Dissolved oxygen variability in the southern Baltic Sea in 2013-2018

Rak Daniel, Walczowski Waldemar, Dzierzbicka-Głowacka Lidia, Shchuka Sergey

Oceanologia

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2020

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No. 62 (4PA)

525--537

EN

This paper discusses changes in the dissolved oxygen concentration (DOC) in the southern Baltic Sea. The oxygenation of the whole water column was estimated. Monthly mean DOCs, as well as a detailed description of the annual surface layer dissolved oxygen (DO) cycle, are presented. The DO cycle at the surface is characterized by two maxima in March/April and November, and by two minima in July/August and December. The DO decline time after the major Baltic inflow (MBI) in 2014 was estimated at about 10 months for the Bornholm Deep and Słupsk Furrow. Whereas the Bornholm Basin was relatively well oxygenated, low oxygen concentrations (<4 mg l−1) were measured in the deep layer of the Gdańsk Deep throughout the inflow period. In addition, the cod spermatozoa activation layer together with the neutral egg buoyancy layer for the Bornholm Basin and Słupsk Furrow are discussed on the basis of the measured DOCs and the variability in hydrographic conditions.

3

Argo floats in the southern Baltic Sea

Walczowski Waldemar, Merchel Małgorzata, Rak Daniel, Wieczorek Piotr, Goszczko Ilona

Oceanologia

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2020

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No. 62 (4PA)

478--488

EN

This work aims to familiarize the reader with issues related to modern oceanographic measurement techniques performed by Argo autonomous profiling floats. The opportunity for this is the three years of innovative activity on the part of Argo-Poland in the Baltic Sea. Based on the experience and results acquired by the Institute of Oceanology of the Polish Academy of Sciences (IO PAN), we can say that a revolution in the Baltic Sea monitoring is underway. During three years of activity, the floats launched by IO PAN provided more than 1600 CTD profiles, including 600 O2 profiles. Together with synoptic data from ships, data from moorings and surface buoys, the Argo float measurements are an important part of the southern Baltic monitoring system. Two Argo floats launched by IO PAN collected enough data to determine the dynamics of the oxygen content in various layers, the extent of hypoxic and anoxic zones, and to detect small baroclinic inflows to the Gotland and Gdańsk Deeps.

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Chemistry of water from the inflows to the “Franciszek” dipheading in the “Pomorzany” Zn-Pb mine in the Olkusz Area (SW Poland)

Motyka J., d’Obyrn K., Juśko K., Wójcik T.

Journal of Sustainable Mining

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2017

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Vol. 16, iss. 4

139--150

EN

The “Franciszek” dipheading is one of the main components of the transportation infrastructure in the “Pomorzany” zinc and lead mine in the Olkusz ore district. The heading was cut out of the aeration zone, created by mine drainage in Quaternary sands and Middle and Lower Triassic carbonates. This study presents the results of the examination of the chemical composition of water leaks identified in the dipheading. It was found that the chemical composition of the water under examination depends on geogenic factors, mainly the mineralogical composition of the rocks that are infiltrated by the meteoric waters which feed the leaks, as well as the geochemical processes associated with metal sulphate weathering in the carbonate rock environment (with dolomites and limestones). The significant influence of anthropogenic factors was also identified, including the most important one linked to the migration of polluted waters from the surface mine facilities.

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Dopływy wody do olkuskich kopalń rud cynku i ołowiu w ujęciu historycznym

Motyka J., Adamczyk Z., Juśko K.

Przegląd Górniczy

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2016

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T. 72, nr 6

49--58

PL

Złoża rud cynku i ołowiu w rejonie olkuskim zalegają w węglanowych skałach triasowych, tworzących zbiornik wód podziemnych typu porowo-szczelinowo-krasowego. Dopływy do wyrobisk górniczych, drążonych w takich skałach są zazwyczaj bardzo duże. Początki drenażu górniczego omawianych złóż sięgają XV wieku, kiedy wykonano odwadniające je sztolnie. Sumaryczny dopływ wody do tych sztolni sięgał około 100 m3/min. Sztolnie przestały odwadniać górotwór w drugiej połowie XX wieku, po przejęciu wody przez kopalnie „Bolesław”, „Olkusz” i „Pomorzany” na poziomach odwadniających odpowiednio 60, 100 i 130 m poniżej powierzchni terenu. Aktualnie odwadniane jest także złoże „Olkusz-Podpoziom” na głębokości około 130 m. Maksymalne dopływy wody do wyrobisk tych kopalń mieściły się w przedziale od około 30 m3/min (złoże „Olkusz-Podpoziom”) do około 300 m3/min (kopalnia „Pomorzany”). Wielkości dopływów wody do olkuskich kopalń rud cynku i ołowiu są uwarunkowane przede wszystkim charakterem skał otaczających. Zmienność dopływów wody do poszczególnych kopalń zależy od stadium ich rozwoju oraz od wzajemnego wpływu. Wyrobiska odwadniające najgłębszej kopalni „Pomorzany” przejęły większość dopływu wody do kopalni „Bolesław” i niewielką część wody dopływającej do kopalni „Olkusz”, a odwadniane złoża „Olkusz-Podpoziom” zredukowały niemal do połowy dopływ wody do kopalni „Olkusz”. Wielkość dopływu wody zależy także od wysokości opadów atmosferycznych, ale jest to widoczne w przypadku zjawisk ekstremalnych.

EN

Zinc and lead ore deposits in the Olkusz region cover carbonate triassic rocks, which form the ground water reservoir of the porous-fissured-karst type. Inflows to the excavations carved in this kind of rocks are usually very large. The beginnings of the mining drainage are dated back to the XV century, when draining adits were created. The cumulative inflow of water to the adits reached about 100 m3/min. The adits stopped to perform their draining function in the second half of the XX century, after the water was taken over by “Bolesław”, “Olkusz” and “Pomorzany” mines on the drainage levels of 60, 100 i 130m below the ground surface. Currently, also the “Olkusz-Podpoziom” deposit is being drained on the depth of about 130m. The critical inflows to these excavations were in the range from about 30 m3/min (“Olkusz-Podpoziom deposit”) to about 300 m3/min (“Pomorzany” mine). The size of inflows to the zinc and lead ore mines in the Olkusz region is conditioned in the first place by the nature of the surrounding rocks. The variability of water inflows to the mines is dependent on the phase of their development and their mutual influences. Drain workings of the deepest mine “Pomorzany” have captured most of the water flow to the “Bolesław” mine and a small part of water flow to the “Olkusz” mine. Drainage of the “Olkusz-Podpoziom” deposit has reduced almost by half the water inflow to the “Olkusz” mine. The size of water inflow depends also on the amount of the precipitation, but it is noticeable in the case of extreme weather phenomena.