Browsing Staff publications (SAS) by Author "Jefferson, Bruce"

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Assessment of municipal waste compost as a daily cover material for odour control at landfill sites.

Hurst, C.; Longhurst, Philip J.; Pollard, Simon J. T.; Smith, Richard; Jefferson, Bruce; Gronow, Jan R. (Elsevier Science B.V., Amsterdam., 2005-01-01)

The ability of municipal waste compost as a daily cover material to reduce the odorous emissions associated with landfill surfaces was investigated. Trials were carried out using landfill gas, a certified sulphurous gas ...
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 ...
Chemical and biological oxidation of NOM surrogates and effect on HAA formation

Bond, Tom; Goslan, Emma Harriet; Jefferson, Bruce; Roddick, F.; Fan, L.; Parsons, Simon A. (Elsevier, 2009-06)

Formation of disinfection by-products (DBPs) can be controlled by removal of disinfection by-product precursors before disinfection. Variable success has been reported, depending on the treatment used and water tested. ...
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 ...
Comparison of the disinfection by-product formation potential of treated waters exposed to chlorine and monochloramine

Bougeard, M. M.; Goslan, Emma Harriet; Jefferson, Bruce; Parsons, Simon A. (Elsevier, 2010-02)

The formation of disinfection by-products (DBPs) from chlorination and monochloramination of treated drinking waters was determined. Samples were collected after treatment at 11 water treatment works but before exposure ...
Computational Fluid Dynamics Modelling of Flocculation in Water Treatment: A Review

Bridgeman, J.; Jefferson, Bruce; Parsons, Simon A. (2009-06-30)

The principal focus of this paper is to present a critical review of current approaches to modelling the inter-related hydrodynamic, physical and chemical processes involved in the flocculation of water using Computational ...
Fouling control of a membrane coupled photocatalytic process treating greywater

Pidou, Marc; Parsons, Simon A.; Raymond, Gaelle; Jeffrey, Paul; Stephenson, Tom; Jefferson, Bruce (Elsevier Science B.V., Amsterdam., 2009-09-01)

Fouling in membrane coupled photocatalytic reactors was investigated in the case of greywater treatment by establishing the link between product type, dose, irradiation time and fouling rates in a cross flow membrane ...
Greywater recycling: A review of treatment options and applications

Pidou, Marc; Memon, Fayyaz Ali; Stephenson, Tom; Jefferson, Bruce; Jeffrey, Paul (Thomas Telford, 2007-01-01)

Wastewater is an immense resource which could have significant applications in regions of water scarcity. Greywater has particular advantages in that it is a large source with a low organic content. Through critical analysis ...
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 ...
The impact of differing cell and algogenic organic matter (AOM) characteristics on the coagulation and flotation of algae

Henderson, Rita Kay; Parsons, Simon A.; Jefferson, Bruce (Elsevier, 2010-06)

The aim of this study was to compare the coagulation and flotation of different algae species with varying morphology and algogenic organic matter (AOM) composition in order to link physical and chemical algae characteristics ...
Impacts of residence time during storage on potential of water saving for grey water recycling system

Liu, S.; Butler, D.; Memon, Fayyaz Ali; Makropoulos, C.; Avery, L. M.; Jefferson, Bruce (Elsevier Science B.V., Amsterdam., 2010-01-01)

Grey water recycling has been generally accepted and is about to move into practice in terms of sustainable development. Previous research has revealed the bacteria re-growth in grey water and reclaimed municipal water ...
Improving the energy balance of an integrated microalgal wastewater treatment process

Ometto, Francesco; Whitton, Rachel; Coulon, Frederic; Jefferson, Bruce; Villa, Raffaella (2014-04-01)

The inclusion of a microalgal system in a wastewater treatment flowsheet for residual nutrient uptake can be justified by processing the waste biomass for energy recovery. Low energy harvesting technologies and pre-treatment ...
Incorporating biodegradation and advanced oxidation processes in the treatment of spent metalworking fluids

MacAdam, Jitka; Ozgencil, Haci; Autin, Olivier; Pidou, Marc; Temple, Clive; Parsons, Simon A.; Jefferson, Bruce (Taylor & Francis, 2012-04-27)

The treatment of spent metalworking fluids (MWFs) is difficult due to their complex and variable composition. Small businesses often struggle to meet increasingly stringent legislation and rising costs as they need to treat ...
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 ...
Media surface properties and the development of nitrifying biofilms in mixed cultures for wastewater treatment.

Stephenson, Tom; Reid, E.; Avery, L. M.; Jefferson, Bruce (Institute of Chemical Engineers, 2013-07-01)

Plastic was tested to select biofilm support media that would enhance nitrification in the presence of heterotrophs. Eight different types (acrylonitrile butadiene styrene, nylon, polycarbonate, polyethylene, polypropylene, ...
Membrane Gas Absorbers for H2S Removal - Design, Operation and Technology Integration into Existing Odour Treatment Strategies.

Jefferson, Bruce; Nazareno, C.; Georgaki, S.; Gostelow, P.; Stuetz, Richard M.; Longhurst, Philip J.; Robinson, T. (Taylor & Francis, 2005-07-01)

A hollow fibre (HF) polypropylene membrane gas absorber was investigated for the removal of hydrogen sulphide (H2S) from gas streams. Gas concentrations between 25-2010 ppmV were fed into the shell side of a membrane ...
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 ...
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 ...

Browsing Staff publications (SAS) by Author "Jefferson, Bruce"

Browsing Staff publications (SAS) by Author "Jefferson, Bruce"

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