Wyniki wyszukiwania - Biblioteka Nauki

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An Assessment of Progress in the Implementation of the BWM Convention on Ships as an Important Element in Protecting Aquatic Ecosystems

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Zatoń-Sieczka K. , Czerniejewski P.

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tom Tom 23

78--93

EN

The purpose of this study was to assess progress in the implementation of rules for the control and handling of ballast water and sediments, regulated by the International Convention on the Control and Handling of Ship Ballast Water and Sediments (BWM Convention). The survey was conducted in 2018-2019 among seafarers responsible for handling ballast tanks. Analysis of the survey data revealed that despite the introduction of water treatments, ballast water continues to be a vector for the transfer of non-native organisms. This is due to the low effectiveness of the methods used, and the fact that 8% of the respondents answered that no BWT systems were used on the ships they manage. Despite this, some seafarers (4.7%) indicated that increasing environmental awareness and adherence to BWM principles should result in improved protection of aquatic ecosystems. Therefore, the global problem concerning the transport of non-native organisms via ballast water has still not been solved effectively. In the near future, improved BWT systems should be introduced, which after proper training of the crew will act as a barrier to the transfer of non-native organisms in ballast water.

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Limited success of the non-indigenous bivalve clam Rangia cuneata in the Lithuanian coastal waters of the Baltic Sea and the Curonian Lagoon

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Solovjova S. , Samuilovienė A. , Srėbalienė G. , Minchin D. , Olenin S.

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tom No. 61 (3)

341--349

EN

The gulf wedge clam, common rangia Rangia cuneata, with a native origin in the Gulf of Mexico has spread to north European brackish and freshwaters. This semitropical species is able to survive in conditions of low winter temperatures in boreal environment of the Baltic Sea. Its expansion within lagoons and sheltered bays in the southern and eastern parts of the Baltic Sea appears to be with natural spread and its discontinuous distribution is likely to have been with shipping, either within ballast water or as settled stages transported with dredged material. In this account, we report on the occurrence of R. cuneata in Lithuanian waters. We compare habitats of the common rangia in the Curonian Lagoon and in the exposed coastal waters of the Baltic Sea. We notice high mortality of the species in the Lithuanian waters in comparison to the neighboring Vistula Lagoon. Based on finding of small specimens of R. cuneata attached to the spiked watermilfoil Myriophyllum spicatum, we indicate a risk of local spread with movements of fishing equipment and snagged plants on anchors or boat trailers removed from the water. We discuss the possibility of further spread of the common rangia to similar environments in the Baltic Sea and elsewhere in Europe.

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Zarządzanie wodami balastowymi w świetle wymogów międzynarodowej konwencji o kontroli i postępowaniu ze statkowymi wodami balastowymi i osadami (BWM Convention)

86%

Barańska M.

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tom R. 17, nr 12

43--47

PL

W artykule omówiona została problematyka zarządzania wodami balastowymi w świetle międzynarodowej Konwencji o Kontroli i Postępowaniu ze Statkowymi Wodami Balastowymi i Osadami (BWM 2004). Niniejszy artykuł obrazuje obecny stan ratyfikacji Konwencji. Zawiera informacje z zakresu wymogów Konwencji. Opracowanie powstało w związku ze zbliżającym się terminem wejścia Konwencji w życie. Zostało sporządzone w oparciu o aktualne dane (stan na dzień 06.10.2016r.), których źródłem jest Międzynarodowa Organizacja Morska (IMO).

EN

The article presents the issue of ballast water management aspect of requirements of International Convention for the Control and Management of Ships’ Ballast Water and Sediments (BWM 2004). This article shows the current state of the ratification of said Convention and has been prepared since the Convention is shortly going to enter into force. The article has been developed based on current data (as on 6 October 2016) provided by the International Maritime Organisation (IMO).

4

Performance and selectivity of ceramic membranes in the ultrafiltration of model emulsion in saline

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Ćwirko K. , Kalbarczyk-Jedynak A.

Management Systems in Production Engineering

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2017

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tom nr 2 (25)

88--92

EN

Oily wastewaters from different onshore and offshore installations and from maritime transport pose a serious threat to the environment so they must be treated by multistage separation also including membrane processes. The main advantages of such membranes are high performance and selectivity, high resistance for temperature and pressure, resistance for acids, bases and solvents, long service life and for application – significant reduction of industries and transport environmental impact. This work presents the results of the process of separation of oil from the emulsion with NaCl addition. Research was performed with a use of laboratory installation with ceramic 300 kDa membrane. The analysis concerned performance and selectivity of a membrane in the function of time and test results have been subsequently compared with the requirements of the IMO.

PL

Wody zaolejone pochodzące z morskich i lądowych instalacji oraz transportu morskiego stanowią poważne zagrożenie dla środowiska, co sprawia że muszą być oczyszczane wieloetapowo, także z wykorzystaniem procesów membranowych i membran nieorganicznych. Głównymi zaletami takich membran są wysoka wydajność i selektywność, duża odporność na temperaturę i ciśnienie, odporność na kwasy, zasady i rozpuszczalniki, długa żywotność – a przy ich stosowaniu znaczące zmniejszenie oddziaływania przemysłu i transportu na środowisko. Praca przedstawia wyniki procesu separacji oleju z emulsji z dodatkiem NaCl. Badania doświadczalne zostały przeprowadzone z wykorzystaniem instalacji laboratoryjnej oraz membrany ceramicznej o średnicy 300 kDa. Wykonane analizy dotyczyły wydajności i selektywności badanej membrany w zależności od czasu, a wyniki analiz zostały następnie porównane z wymaganiami IMO.