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  • 1
    Electronic Resource
    Electronic Resource
    Land-Treatment Systems: Design and Performance with Special Reference to Reed Beds (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 3 (1989), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: The principles of design of a land treatment system are explained on the basis of determining the land area requirements of particular constituents in terms of the supply rate and assimilative capacity. Illustrative data are provided for the design and performance of slow-rate and overland flow systems.The paper includes a comprehensive report on the design and performance of pilot studies carried out on a reed-bed treatment system at Valleyfield, Fife, Scotland. This provides valuable insight into the choice of the bed substrate and the problems of reed establishment. Of the media tested, coarse pulverized fuel ash appeared to be promising in terms of its hydraulic conductivity and reduction in biochemical oxygen demand. For a domestic sewage of typical strength, a bed area of 5 m2 per population equivalent yielded an effluent having a BOD of less than 20 mg/1, but did not provide conditions which were conducive to significant nitrogen removal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1989.tb01440.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The Consent Contract for Effluent Discharges (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 8 (1994), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: The consent for the discharge of effluent is a contract between the discharger and the regulator. Its purpose is reviewed and compared with effluent performance characteristics. The evolvement of consent conditions and compliance assessment in Scotland is described, together with the challenge posed by the need to implement the urban waste water treatment Directive. A new framework for the consent contract is proposed for sewage and industrial discharges, which clearly prescribes the required effluent performance, authorizes non-compliance, and embodies an explicit assessment of compliance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1994.tb01126.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Nitrification Trials at Dunnswood Sewage-Treatment Works and Process Modelling Using WRc STOAT (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 12 (1998), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: The paper describes an experimental programme on an existing full-scale plant to demonstrate the conditions which are necessary to achieve nitrification. The programme was guided by parallel computer modelling of the plant using the WRc STOAT simulation package. Nitrification was successfully achieved, and the studies and computer modelling indicated how the plant should be extended to provide year-round nitrification. The effect of storm flows on effluent quality was assessed for each process option. The effluent quality consent of 5 mg/l ammoniacal nitrogen as a 95 percentile was achieved, and there was a significant improvement in river water quality with respect to ammoniacal nitrogen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1998.tb00166.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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