Browsing by Author "Quarmby, Joanne"

Browsing by Author "Quarmby, Joanne"

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  • Development of a novel lightweight media for Biological Aerated Filters (BAFS) 
    Moore, R.; Quarmby, Joanne; Stephenson, Tom (School of Water Sciences, Cranfield University, 1999-03-03)
    Clay has been foamed and extruded using novel technology, to produce a lightweight media called StarLight C. Altering the production process parameters allows control of the media diameter, density, strength, and surface ...
  • Development of a Novel Medium to Improve the Performance of Biological Aerated Filters (BAFs) 
    Moore, Rebecca Ellen (1999-10)
    A foamed clay, StarLight C, was selected as a potential BAF medium after qualifying as a filter medium according to the BEWA standard tests, and showing the propensity to collect a biofilm. At loading rates > 10 kg COD/ ...
  • The effect of ultrasonic sludge pre-treatment on anaerobic digestion 
    Scott, Joanna Ruth (1998-09-11)
    As sewage sludge dumping at sea is banned from 31st December 1998, water companies are having to find alternative outlets for large volumes of sludge. This project looks at a method of improving the conventional sludge ...
  • The effects of media size on the performance of biological aerated filters 
    Moore, Rebecca; Quarmby, Joanne; Stephenson, Tom (Elsevier, 2001-07)
    Biological aerated filters (BAFs) are an attractive process option, particularly when low land usage is required. They can combine BOD, solids and ammoniacal nitrogen removal and can be utilised at both secondary and ...
  • Micronutrients for wastewater treatment 
    Burgess, Joanna E. (1999-09)
    The results of a postal survey strongly suggested that new developments in the optimisation of biological treatment processes would greatly increase the ability of wastewater-treating industries to adapt to Direct Toxicity ...