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Browsing School of Applied Sciences (SAS) (2006-July 2014) by Author

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

Now showing items 21-40 of 56

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 chemical shock loads on a membrane bioreactor for urban wastewater reuse

Knops, Geraldine Jane Augustine (Cranfield University, 2010-03)

The performance of an MBR under chemical shock loading conditions was investigated, to ascertain the robustness of the treatment system for urban water reuse. 32 household products and industrial substances, likely to ...
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 ...
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 ...
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 ...
Impact of NOM on flocs created in the drinking water process

Cairns, Peter Ryland (Cranfield UniversitySAS, 2008-09)

Increased regulatory pressure to meet THM standards with the possible introduction of HAA regulations means that organic matter, the predominant DBP precursor needs to be removed effectively from site whilst coping with ...
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 ...
Improve the energy efficiency of a full scale integated fixed film activated sludge (IFAS) process at Thames Water Oxford WWTW

Buñol i Tordera, Ramon (Cranfield UniversitySAS, 2009-09)

The primary objective of integrated fixed film activated sludge (IFAS) is to remove dissolved pollutants from wastewater. This process allows an increased treatment capacity in comparison with conventional activated ...
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 ...
Investigating the relationship between shear and floe fate using CFD

Bridgeman, Jonathan Matthew (2006-11)

The size, density and strength of floes play a major role in the removal of contaminants from water in physico-chemical treatment processes. The efficiency of the main removal processes is a function of floe size, strength ...
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 ...
Methane management in sewage treatment

Cookney, Joanna (Cranfield University, 2011-07)

Poly-di-methyl-siloxane (PDMS) hollow fibre membrane modules were designed and built for the specific de-gassing of real and synthetic process liquids to understand: (i) the feasibility of operation; and (ii) classify the ...
Microalgae to energy: biomass recovery and pre-treatments optimisation for biogas production integrated with wastewater nutrients removal

Ometto, Francesco (Cranfield University, 2014-01)

The increasing concern about water quality and energy demand promotes the development of innovative and low-cost processes to improve the nutrient uptake and energy efficiency of existing wastewater treatments (WWT). In ...
Micropollutant removal by advanced oxidation processes

Autin, Olivier (Cranfield University, 2012-10)

The use of pesticides in agriculture has been associated to high concentrations found in surface waters and ultimately to the tightening of drinking water regulations. Whilst traditional granular activated carbon filtration ...
Nanoscale investigations of surface phenomena in the water teatment industry using the atomic force microscope

Bargir, Sameer M. (Cranfield University, 2007-09)

Understanding the interaction between surfaces at the intermolecular level in ambient conditions is not only a fundamental science, but is of increasing value to water treatment systems. Here the uses of the atomic force ...

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

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

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