Browsing School of Applied Sciences (SAS) (2006-July 2014) by Author "Jarvis, Peter"

Browsing School of Applied Sciences (SAS) (2006-July 2014) by Author "Jarvis, Peter"

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  • Ballasted flotation with glass microspheres for removal of natural organic matter 
    Jarvis, Peter; Martin, John; Winspear, Tracey; Jefferson, Bruce (Taylor & Francis Inc., 2013-01-23)
    Low density microspheres were used to float flocs formed from the coagulation of natural organic matter (NOM) using ferric sulphate coagulant. Microspheres were visually observed to be incorporated into the floc structure ...
  • Comparison of coagulation performance and floc properties using a novel zirconium coagulant against traditional ferric and alum coagulants 
    Jarvis, Peter; Sharp, Emma; Pidou, Marc; Molinder, Roger; Parsons, Simon A.; Jefferson, Bruce (Elsevier Science B.V., Amsterdam., 2012-09-03)
    Coagulation in drinking water treatment has relied upon iron (Fe) and aluminium (Al) salts throughout the last century to provide the bulk removal of contaminants from source waters containing natural organic matter ...
  • Development of a rapid fractionation tool for natural organic matter 
    Piper, Claire (Cranfield University, 2010)
    A rapid natural organic matter (NOM) fractionation tool was developed to enable NOM to be classified by hydrophobicity at the water treatment works and in the catchment. This fractionation method uses XAD adsorption ...
  • Filtration efficiency foil owing polymer addition 
    Fabrizi, Lara (2007)
    Natural organic matter has become an increasing concern in drinking water treatment, because of the potentially carcinogenic disinfection by-products that form when disinfectants react with the residual organic carbon ...
  • The impact of barley straw conditioning on the inhibition of Scenedesmus using chemostats 
    Murray, Daniel; Parsons, Simon A.; Jarvis, Peter; Jefferson, Bruce (Elsevier Science B.V., Amsterdam., 2010-03-31)
    The current paper investigates the role of barley straw conditioning on inhibiting the alga Scenedesmus. Fresh, pre-rotted and white rot fungi (WRF) augmented straw was tested in a series of chemostat experiments over ...
  • Impact of magnetic resin on DOC removal and downstream water treatment processes 
    Mergen, Maxime Rodolphe Denis (Cranfield University, 2008-01)
    Seasonal periods of high rainfall and changes in land management have led to difficulties for UK water companies to remove sufficient natural organic matter (NOM) to stay in compliance with the tightening trihalomethane ...
  • Impact of MIEX pre-treatment on floc strength and structure 
    Burton, Vincent (Cranfield UniversitySAS, 2009-09)
    In drinking water treatment regulation standards for natural organic matter (NOM) are tightening owing the fact that NOM leads to formation of carcinogenic disinfection by-products which can be harmful for human health. ...
  • The Impact of Natural Organic Matter on Floc Structure 
    Jarvis, Peter (Cranfield University, 2004-10)
    The removal of natural organic matter (NOM) at water treatment works (WTW) is essential in order to prevent toxic compounds forming during subsequent disinfection. Coagulation and flocculation processes remain ...
  • Kinetic study of adsorption and photo-decolorization of Reactive Red 198 on TiO2 surface 
    Dutta, S.; Parsons, Simon A.; Bhattacharjee, C.; Jarvis, Peter; Datta, S.; Bandyopadhyay, S. (Elsevier, 2009-12-15)
    Recycling and reuse of wastewater after purification will reduce the environmental pollution as well as fulfill the increasing demand of water. Adsorption-based water treatment process is very popular for dye-house wastewater ...
  • Low energy ballasted flotation 
    Jarvis, Peter; Buckingham, P.; Holden, B.; Jefferson, Bruce (Elsevier Science B.V., Amsterdam., 2009-08-01)
    A novel process which involves the replacement or supplementation of bubbles in the dissolved air flotation process with low density beads is presented. The work comprised a series of bench-scale flotation trials treating ...
  • Magnetic ion-exchange resin treatment: Impact of water type and resin use 
    Mergen, Maxime Rodolphe Denis; Jefferson, Bruce; Parsons, Simon A.; Jarvis, Peter (Elsevier Science B.V., Amsterdam., 2008-04-30)
    Three raw waters of fundamentally different natural organic matter (NOM) character were treated by magnetic resin using a bench-scale method designed to mimic how the resin is used in continuous operation. Increasing ...
  • Measuring Floc Structural Characteristics 
    Jarvis, Peter; Jefferson, Bruce; Parsons, Simon A. (Springer, 2005-05)
    A review is presented of a range of techniques for the structural characterisation of flocs. Flocs may be considered as highly porous aggregates composed of smaller primary particles. The irregular size and shape of flocs ...
  • Metaldehyde and its relationship with groundwater contamination and landfill leachate 
    Bullock, Max (Cranfield University, 2014-06)
    Increasing attention is directed towards many chemicals and microbial constituents which have not been historically considered as contaminants. These “emerging contaminants” are commonly derived from municipal, agricultural ...
  • Modeling bromate formation during ozonation 
    Jarvis, Peter; Parsons, Simon A.; Smith, Rosie (Taylor & Francis, 2007-12-31)
    Bromate formation has been identified as a significant barrier in the application of ozone during water treatment for water sources that contain high levels of bromide. Bromate has been identified as a possible human ...
  • Natural organic matter - The relationship between character and treatability 
    Parsons, Simon A.; Jefferson, Bruce; Goslan, Emma Harriet; Jarvis, Peter; Fearing, David Andrew (Iwa Publishing, 2004-12-31)
    The characterisation and treatment of natural organic matter are becoming more important to the water utilities in the UK and around the world. This paper looks at the relationship between bulk and fractionated organic ...
  • Optimising powdered activated carbon dosing procedures for removal of natural organic matter 
    Carroll, Stuart (Cranfield University, 2009-06)
    The performance of three different types of PAC was analysed for the efficiency at which they remove natural organic matter (NOM) from untreated (raw) water, with the objective of ultimately reducing disinfection ...
  • The practical application of fractal dimension in water treatment practice-the impact of polymer dosing 
    Jarvis, Peter; Parsons, Simon A.; Henderson, Rita Kay; Nixson, Nicholas; Jefferson, Bruce (Taylor & Francis Inc., 2008-07-01)
    The application of floc fractal dimension has been investigated in this work to determine if this parameter can have operational significance in water treatment. Natural organic matter suspensions were coagulated with ...
  • A review of floc strength and breakage 
    Jarvis, Peter; Jefferson, Bruce; Gregory, J.; Parsons, Simon A. (Elsevier, 2005-09)
    The main focus of the paper is to review current understanding of floc structure and strength. This has been done by reviewing current theoretical understanding of floc growth and breakage and an analysis of different ...
  • Zirconium as a coagulant for enhanced natural organic matter removal 
    Molinder, Roger (Cranfield University, 2009)
    Coagulation is the most common way to remove the bulk of natural organic matter (NOM) from moorland source waters during drinking water treatment. Deteriorating water quality and tightening regulations have created the ...

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