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  • Blackwell Publishing Ltd  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Phosphorus Removal from Sidestreams by Crystallisation of Magnesium-Ammonium-Phosphate Using Seawater (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 14 (2000), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: In recent years, a number of biological-treatment processes have been developed for phosphorus removal, alone or in combination with nitrogen. In anaerobic/oxic and anaerobic/anoxic/oxic processes, it is necessary to lower the concentration of phosphorus in the sidestream from the sludge-disposal processes. To do this, the magnesium-ammonium-phosphate system has been developed in which phosphorus is removed in a side-stream process.Alternative systems require chemicals such as magnesium chloride as the source of magnesium and sodium hydroxide for pH control, and are economically less viable than that described in this paper in which seawater is substituted for the chemicals.Dissolved phosphorus removal of over 70% was achieved without pH control by feeding the sidestream which contained 50–111 mg/l dissolved phosphorus and had a pH greater than 7.77, together with a 9–10% flow of seawater into the reactor containing 4–13% of magnesium ammonium phosphate and which provided a retention of 29 mins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.2000.tb00263.x
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  • 2
    Electronic Resource
    Electronic Resource
    Morphometric comparison and differentiation between artificially-released and wild red sea bream (Pagrus major) (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 3 (1987), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The objective of this study is to develop a method of differentiation of hatchery-reared and artificially-released red sea bream (Pagrus major) from wild fish, based upon their morphometric differences. Morphometric measurements were done on fork length and 14 other characters. Among these charac)ters, significant differences between hatchery-reared and wild red sea bream were observed in body height, height at eye, eye diameter and upper jaw length. Discriminant functions were effective in differentiating artificial fish from wild fish.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1987.tb00452.x
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    Paper (German National Licenses)
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