Ballast water treatmentIntroduction of invasive species through ballast water discharge has been a serious concern with the marine ecosystem. With growing research in the ballast water management, recent studies are being focused on the types of invasive species and physico-chemical parameters discharging...
Article introduction to the concept of ships ' ballast water and its hazards, as well as current ships ballast water treatment methods and research; and water chemical parameters of ship ballast water treatment systems were tested, and describes the methods of experimental material. ...
De-ballasting represents an input of still viable zooplankton, phytoplankton, and microorganisms in the destination port, leading to the introduction of alien species, and consequently, the introduction of organisms will alter the local biodiversity. Ballast water treatment is necessary to comply with ...
ao eliminate the introduction of invasive marine species and the disadvantages of ballast water treatment systems a new concept in ship design was developed to be alternative of ballast water system. Non-Ballast ships were rarely mentioned in China even they were studied widely worldwide. In this ...
It utilizes an extracting reagent solution, immiscible with water, stagnant or flowing between two aqueous solutions (or gases), the source or feed and receiving or strip phases. From: Liquid Membranes, 2010 About this pageSet alert Discover other topics ...
5 - A 20/Res.868 P:\DOCS\A 868.DOC 1 Introduction 1.1 Studies carried out in several countries have shown that many species of bacteria, plants, and animals can survive in a viable form in the ballast water and sediment carried in ships, even after journeys of several months' duration....
Medium composition and incubation temperatures for several treatments with common water-activity values differed (that is, 0.655i, 0.655ii, 0.702i, 0.702ii 0.714i, 0.714ii, 0.795i and 0.795ii; for details see Supplementary Table S8). The black arrow indicates the lowest water-activity at which ...
Background/Question/Methods Geographical range is the basic unit of biogeography and understanding the area over which a species occurs is a key first step in identifying threats to a species and to establishing conservation priorities. In this study we first determined the elevation envelope within ...
Ballast water (BW) is used to maintain vessel stability during the voyage. However, it is also a well-known transporter for the introduction of non-indigenous aquatic organisms. >7000 species have been introduced by ships all around the world every day, including harmful phytoplankton, zooplankton...
The buoyancy engine of the UG was designed based on the purpose of operation, and the relationship between the control value of the ballast emitted from the buoyancy engine and the speed of the UG was analyzed. In addition, the reliability of the design was verified by performing dynamic ...