Results 161 to 170 of about 11,316,946 (214)

Application of hydrodynamic cavitation in ballast water treatment

Environmental Science and Pollution Research, 2015
Ballast water is, together with hull fouling and aquaculture, considered the most important factor of the worldwide transfer of invasive non-indigenous organisms in aquatic ecosystems and the most important factor in European Union. With the aim of preventing and halting the spread of the transfer of invasive organisms in aquatic ecosystems and also in
Martina, Cvetković, Boris, Kompare, Aleksandra Krivograd, Klemenčič   +2 more
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Hydrogen Peroxide: An Effective Treatment for Ballast Water

The Biological Bulletin, 2001
polyphemus size and age. The analysis of cohorts demonstrated that C. fornicata in Pleasant Bay can be divided into 5 size cohorts (Fig. 1A), with C. fornicata of approximately 4–6 mm in length appearing to represent the most recent spatfall. The cohorts differed in abundance, reflecting different magnitudes of recruitment from year to year.
A M, Kuzirian, E C, Terry, D L, Bechtel, P L, James   +3 more
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Recent Technologies for Ballast Water Treatment

Ozone: Science & Engineering, 2012
Concern about ballast-mediated bioinvasions into freshwater, estuarine and marine habitats is not limited to biodiversity per se but extends to its broader socio-economic impacts on agriculture, forests, fisheries, aquaculture, and other human activities dependent on the stability of living resources in a particular ecosystem.
Alex Augusto Gonçalves, Graham A. Gagnon   +1 more
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Ballast Water Treatment methods - Systems

2022
The present thesis focuses on ballast treatment technologies and how these can be assessed by the buyer in order to select the most appropriate Ballast Water Treatment System (BWTS) for a Bulk Carrier Dry cargo ship. The first Chapter introduce the concept of biodiversity and the need for immediate actions to protect the environment from the invasion ...
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Technologies for ballast water treatment: a review

Journal of Chemical Technology & Biotechnology, 2009
AbstractInvasive aquatic species discharged through ballast water is one of the most serious problems posed nowadays in the marine environment. This review paper summarizes the available technologies applied for ballast water treatment. These technologies can be either port‐based or ship‐based, with the latter being easier to implement.
Efi Tsolaki, Evan Diamadopoulos
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Water ballast treatment

2012
Το νερό έρµατος χρησιμοποιείται από τα πλοία για την σωστή ευστάθεια στην πλεύση. Ωστόσο έχει αποδειχτεί ότι προκαλείται ρύπανση στα θαλάσσια ύδατα λόγω της μεταφοράς υδρόβιων οργανισμών µέσω των δεξαμενών έρµατος από πλοία. Για τον λόγω αυτό το 1988 ο IMO, ο Διεθνής Οργανισµός Ναυσιπλοΐας του Οργανισμού Ηνωμένων Εθνών, ανέλαβε τις προσπάθειες για την ...
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Treatment of Ballast Water on Board Ships

2015
The global transport of ballast water in ocean-going ships contributes substantially to the spread of aquatic invasive species, with serious consequences to local ecosystems. Therefore, the treatment of ballast water prior to discharge will soon become mandatory. Within the last decade, several dozen ballast water treatment systems have been developed.
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Ship ballast water ultrasonic treatment

The Journal of the Acoustical Society of America, 2002
Ballast water is treated by applying ultrasonic frequencies to the water to kill organisms entrained in the water such as diatoms, veligers, fish larvae, plankton, and microorganisms, preventing the introduction of non-indigenous species between ports-of-call. The ballast water is circulated through a ballast treatment system.
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Heating Methods of Water Ballast Treatment on- Board

2008
Alohtonus organisms relased into sea with water ballast exert a harmful influence onto biodiversity, shore industry, and human health. This paper describes the possibilities for aplication of heating methods in water ballast treatment. Proposals for heating treatment and continuous washing of tanks, heating treatment with recirculation and heating ...
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Deciphering the characterization, ecological function and assembly processes of bacterial communities in ship ballast water and sediments

Science of the Total Environment, 2022
Baoyi Lv, Yangchun Han, Yuxue Cui
exaly