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About Dr David Ward

After graduating in 1996, with a degree in Engineering with Environmental Studies, David worked for Alcontrol Laboratories plc as a gas emissions monitoring technician before returning to academia to studying for a PhD at the University of Sheffield, Department of Chemical & Process Engineering - developing a technology for the detoxification of waste incinerator ash. As a Post-Doctoral Researcher at the University of Bradford, he developed a novel indirect ozone water treatment technology, before returning to industry to lead the development of a high efficiency vortex sand filter for Industrial Purification Systems Ltd. David then spent several years as Senior Research Engineer for R&D start-up company Acal Energy Ltd, developing a gas liquid oxidation reactor for a novel hydrogen PEM fuel cell engine. This work led to several patented devices for i) the efficient generation and destruction of microbubble foams, and ii) the enhancement of gas-liquid mass transfer and reaction kinetics. David continues to advance this work at the University of Chester with respect to both fuel cells and water treatment applications.

Published Work

Patents and Patent Involvement
1.    Ward D. and Longman R. (2015). Gas-liquid containing elements for durable production of fine bubbles, Patent Pending.
2.    Ward D. and Longman R. (2015). Hydrophobic/Hydrophilic gas-liquid containing elements for durable production of fine bubbles, Patent Pending.
3.    Ward D. and Longman R. (2013). Improved fuel cell electrolyte regenerator and separator, WO 2013/110950 A1.
4.    Ward D. and Longman R. (2013). Separator, WO 2013/110951 A1.
5.    Ward D. and Creeth A. M. (2013). Fuel cells, WO 2010/128333 A1.
6.    Cupples S. and Evans A. (2009). A high efficiency media filter, GB 2461119 B.

Academic Journal Papers
1.    Ward D. B. & Davies T. J. (2018). Effect of Temperature and Catholyte Concentration on the Performance of a Chemically Regenerative Fuel Cell POM-based catholytes for platinum-free polymer electrolyte fuel cell. Johnson Matthey Technol. Rev., Vol. 62, (2), 189.
2.    Ward D. B., Gunn N. L. O., U. Nadine, Davies T. J. (2018). Performance comparison of protonic and sodium phosphomolybdovanadate polyoxoanion catholytes within a chemically regenerative redox cathode polymer electrolyte fuel cell. Journal of Power Sources, Vol. 375, 68-76.
3.    Gunn N. L. O., Ward D. B., Menelaou C., Herbert M. A and Davies T. J. (2017). Investigation of a Chemically Regenerative Redox Cathode PEM Fuel Cell using a Phosphomolybdovanadate Polyoxoanion Liquid Catalyst. Journal of Power Sources. Vol. 348, 107-117.
4.    Ward D. B., Cupples S., Poole R. J. and Owen I. (2008). Suppression of ‘Filter Cake’ within a media pressure filter by vortex surface scouring. FILTRATION, Vol. 8(2), 114-118.
5.    Tizaoui C., Bickley R. I., Slater M. J., Wang W-J., Ward D. B. and Al-Jaberi A. (2008). A comparison of novel ozone-based systems and photocatalysis for the removal of water pollutants. Desalination, Vol. 227, 57-71.
6.    Ward D. B., Tizaoui C. and Slater M. J. (2006). Wastewater dye destruction using ozone-loaded VolasilTM245 in a continuous flow Liquid-Liquid/Ozone system. Chemical Engineering & Processing, Vol. 45, 124-130.
7.    Ward D. B., Tizaoui C. and Slater M. J. (2005). Continuous extraction & destruction of chloro-organics in wastewater using ozone-loaded VolasilTM245 solvent, Journal of Hazardous Materials, Vol. 125, Part B, 65-71.
8.    Ward D. B., Tizaoui C. and Slater M. J. (2004). Extraction and destruction of organics in wastewater using ozone-loaded solvent, Ozone Science and Engineering, Vol. 26, 475.
9.    Ward D. B., Tizaoui C. and Slater M. J. (2004).Ozone-loaded solvents for use in water treatment, Ozone Science and Engineering, Vol. 25, No. 6.
10.    Ward D. B., Edyvean R. and Archer E. (2004). Wastewater treatment by waste derived biosorbents: An industrial scale demonstration, Transactions of the Institute of Metals Finishing, Vol. 82(1), 1.
11.    Yang Y. B., Goodfellow J., Ward D., Gan S., Swithenbank J. and Nasserzadeh V. (2003). Cutting wastes from municipal solid waste incinerator plants, Trans IChemE, Vol. 81, Part B. (Junior Moulton Medal Winner)
12.    Ward D. B., Goh Y. R., Clarkson P. J., Lee P. H., Nasserzadeh V. and Swithenbank J. (2002). A novel energy-efficient process utilizing regenerative burners for the detoxification of fly ash, Trans IChemE, Vol. 80, Part B. (Winner of Junior Moulton Medal)
13.    Ward D.B., Sharifi V.N., Swithenbank J., McLeod C.W., Clarkson P.J., Laming J., Holmes M. (2002). Measurement of dioxins in waste incinerator fly ash residues and their destruction by sintering, Journal of Solid Waste Technology and Management, Vol. 28, No. 1, 9.
14.    Clarkson P. J., Larrazabal-Moya D., McLeod C. W., Ward D. B., Sharifi V. N., and Swithenbank J. (2002). The use of tree bark as a passive sampler for PCDD/F, International Journal of Environmental Analytical Chemistry, 82(11), 843.
15.    Clarkson P.J., Ward D.B., Sharifi V.N., McLeod C.W. and Swithenbank J. (2001). The assessment of a thermal ash detoxification process using Ion-Trap GC-MS/MS analysis, Organohalogen Compounds, Vol. 54, 285.

Conference Publications & Presentations
1.    Ward D. B., Smith B. and Davies T. J. (2018). Impact of varying temperature and catholyte concentration within a chemically regenerative redox cathode polymer electrolyte fuel cell system using phosphomolybdovanadium polyoxoanion catholyte. FCH2 Technical Conference, NEC, Birmingham, UK. March.
2.    Smith B., Ward D. B. and Davies T. J. (2018). Phosphomolybdovanadium polyoxoanion catholyte for use within a chemically regenerative redox polymer electrolyte fuel cell and the impact of varying NaOH addition. FCH2 Technical Conference, NEC, Birmingham, UK. March.
3.    Ward D. B., Gunn N. L. O. and Davies T. J. (2016). Investigation of a Second Generation PEM Fuel Cell System, FCH2 Technical Conference, Millennium Point, Birmingham, UK. May.
4.    Ward D. B., Gunn N. L. O. and Davies T. J. (2016). Investigation of a Second Generation PEM Fuel Cell System, FCH2 Technical Conference, Millennium Point, Birmingham, UK. May.
5.    Ward D. B., Poole R. J. and Owen I (2007). Effects of media filter inlet design on bed surface deformation and grade efficiency, Filtech 2007 International Conference and Exhibition, Wiesbaden, Germany, March.
6.    Ward D. B., Tizaoui C. and Slater M. J. (2003). Extraction and destruction of organics in wastewater using ozone-loaded solvent, 16th Ozone World Congress, Caesar’s Palace, Las Vegas, USA, September.
7.    Ward D. B., Clarkson P. J., Lee P. H., Nasserzadeh V. and Swithenbank J. (2001) Development of a novel and efficient process for the detoxification and re-use of contaminated fly-ash, 3rd Symposium on Incineration and Flue Gas Treatment, Hotel la Plaza, Brussels, Belgium. July.
8.    Ward D. B. (2001). Techniques for the monitoring of flue gas pollutants from MSW Incineration, oral presentation delivered to the Department of Chemical Engineering, Middle East Technical University, Ankara, Turkey. March.
9.    Ward D. B., Lee P. H., Nasserzadeh V., Swithenbank J. and McLeod C. W. (2000). Measurement of dioxins in waste incinerator fly ash residues and their destruction by sintering. Research 2000 IChemE Conference, Bath, UK. January.

Qualifications

BEng(Hon), MSc(Res), PhD, AMIChemE