Areas of expertise

Background

  • Experienced researcher in municipal and industrial water and wastewater treatment technology development, including project procurement, management and delivery
  • Completion of over 30 research student project programmes (EngD, PhD, MPhil and MSc by Research)
  • Management of over 15 long-term consortium projects for UK and overseas water utilities, consulting and contracting clients, mainly in membrane technology and including a UK national membrane potable water survey and cleaning efficacy assessment
  • Author of "The MBR Book" first and second editions; co-author of four other reference/ text books on Membrane Technology and general water and wastewater treatment design ("Watermaths")
  • Extensive networking across UK and EU research groups: key collaborator in three EU MBR projects
  • Extensive professional links with senior managers across UK and international water industry, including membrane technology suppliers, practitioners and consultants
  • Consultancy provided to clients internationally (US, Latin America, Europe, Middle East and Far East) on membrane technology, in particular relating to municipal wastewater treatment and reuse, ranging from market/technology appraisal to troubleshooting of full-scale installations
  • Applied research in cost benefit analysis and process optimisation for membrane technologies, and membrane bioreactor technology in particular
  • Editorial board/committee member of five peer-reviewed journals
  • Owner of The MBR Group and Watermaths on LinkedIn
  • Two years working in nuclear fuel reprocessing waste management prior to joining the staff at Cranfield
  • Fellow of the Royal Society of Chemistry.

Current activities

  • Membrane bioreactors for wastewater treatment research and consultancy: design and optimisation of operation and maintenance
  • Nanofiltration and alternative echnologies for potable water production: efficacy assessment for suppression of disinfection byproduct formation
  • Treatment technologies for petroleum effluents: tertiary treatment technologies for produced water reinjection.

Clients

  • US international memrbane technology supplier
  • US international wastewater treatment technology supplier
  • UK water companies
  • Various UK, EU and overseas international water industry consultants and training providers (primarily relating to membrane bioreactors).

Publications

Articles In Journals

Conference Papers

  • Eddy D, Adham S & Judd SJ (2007) Pan-Atlantic review of operation of low pressure membrane filtration plants. In: Membranes for Water and Wastewater Treatment, 4th IWA Membranes conference, Harrogate, UK, 15 May 2007.
  • Fletcher H & Judd SJ (2007) Cost of a package plant MBR: sensitivity analysis. In: Membranes for Water and Wastewater Treatment, 4th IWA Membranes Conference, Harrogate, UK, 15 May 2007.
  • Lodge B & Judd SJ (2005) Comparison of relative fouling propensities of synthetic and real greywater and settled sewage on an ultrafiltration membrane. In: ICOM 2002, Toulouse, France, 17 February 2005.
  • Chang I & Judd SJ (2005) Domestic wastewater treatment with a submerged MBR using an air sparging technique. In: 5th IWA Specialised conference on Small Wter and Wastewater Treatment Systems, Istanbul, 17 February 2005.
  • Judd SJ (2005) Fouling in submerged MBRs. In: Water Environment - Membrane Technology, June 2004, Seoul, Korea, 17 February 2005.
  • Bigg T & Judd SJ (2005) Remediation and recalcitrant contaminants with zero-valent iron. In: 3rd International conference on Groundwater Quality, Sheffield, UK, 16 February 2005.
  • Jefferson B, Nazareno C, Parsons SA & Judd SJ (2005) Membrane gas absorbers for H2S removal - technology evaluation and integration into existing odour treatment strategies. In: Odour 2, Cranfield, UK, 16 February 2005.
  • Lodge B & Judd SJ (2005) Optimisation of operating conditions for domestic wastewater filtration. In: Membrane Academia Industry Network (MAIN), May 2004, Cranfield, UK, 17 February 2005.
  • Bigg T & Judd SJ (2005) Colour remediation by anaerobic corrosion of scrap iron. In: Electrochem 2001, Loughborough, UK, 16 February 2005.
  • Judd SJ & Jefferson B (2005) Industrial water recycling: holy grail or wholly unjustified. In: Envirowater 2003, Albacete, 17 February 2005.
  • Judd SJ & Churchouse S (2005) Long term fouling in membrane bioreactors. In: 9th World Filtration Congress, April 2004, New Orleans, USA, 17 February 2005.
  • Jefferson B, Chang I & Judd SJ (2005) Physico-chemical characteristics of the biomass in membrane bioreactors used under different MLSS concentrations. In: IWA conference on Environmental Biotechnology, May 2003, Johor Bahru, Malaysia, 17 February 2005.
  • Thomas H, Murrer J & Judd SJ (2005) Fouling characteristics of membrane filtration in membrane bioreactors. In: Membrane Technology in Water and Wastewater Treatment, Lancaster University, UK, 16 February 2005.
  • Judd SJ (2005) Combined coagulation with microfiltration of upland waters. In: 8th World Filtration congress, Brighton, UK, 16 February 2005.
  • Passe D, Wilkes S & Judd SJ (2005) Performance and economic evaluation of a submerged membrane bioreactor on large diameter hoolow fibre membranes for the treatment of raw sewage. In: 8th World Filtration Congress, Brighton, UK, 16 February 2005.
  • Cartmell E, Judd SJ, Kilgallon PJ & Oakey JE (2005) Sewage sludge disposal: A logistical analysis. In: Recycling and reuse of sewage sludge, Dundee, UK, 16 February 2005.
  • Jefferson B, Jeffrey P & Judd SJ (2005) Grey water characterisation and its impact on the selection and operation of technologies for urban reuse. In: 4th International Symposium on on Watewater Reclamation and Reuse, November 2003, Mexico City, Mexico, 17 February 2005.
  • Jefferson B, Judd SJ & Brookes A (2004) Sub-critical fouling in a membrane bioreactor: impact of flux and MLSS. In: IWA 4th World Water Congress, September 2004, Marrakech, 1 January 2004.
  • Judd SJ, Gillberg L, Pikkarainen A & Jokela J (2004) Precoagulation for microfiltration of upland surface water: lab-scale and pilot studies. In: 11th International Gothenburg Symposium on Chemical Treatment of Water and Wastewater, November 2004, Orlando, Florida, USA., 1 November 2004.
  • Judd SJ, Cardin J, Goldsmith R & Jefferson B (2004) Use of ceramic membranes in airlift membrane bioreactors. In: 8th International Conference on Inorganic Membranes (ICIM8), July 2004, Cincinnati, 1 July 2004.
  • Judd SJ (2004) Disinfection by products in swimming pools. In: NSPF Pool Water Health, Atlanta, USA, 4 October 2004.
  • Judd SJ (2004) Everything you ever wanted to know about MBRs and much less. In: WEFTEC workshop: Crossing the bridge with MBR Technology: A Joint European and North American Perspective on the State of the Practice of MBR Applications, New Orleans, USA, 2 October 2004.
  • Judd SJ, Holdner J & Jefferson B (2004) Impact of membrane material on membrane bioreactor permeability. In: Water Environment - Membrane Technology, Seoul, Korea, 7 June 2004.
  • Jefferson B & Judd SJ (2003) Industrial water recycling: drivers, problems and economics. In: IMSTEC 2003, Sydney, Australia, 10 November 2003.
  • Jefferson B, Judd SJ & alvaerez-vazquez H (2003) Industrial water recycling with membranes. In: 4th International Symposium on Wastewater Reclamation and Reuse, November 2003, Mexico City, Mexico, 12 November 2003.
  • Smith S, Judd SJ, Stephenson T & Jefferson B (2003) Membrane bioreactors - hybrid activated sludge or new process. In: 5th International Membrane Science and Technology Conference, Sydney, 10 November 2003.
  • Jackman S, Hampton S, Nathanail P, Guess P, Killham K, Paton G, Pollard S, Judd SJ, Stephenson T, Thompson I, Bailey M, Kalin R, Larkin M, Banwart S, Lerner D, Harris R, Beck P, Dalrymple I, Pallett I & Lethbridge G (2003) FIRST Faraday - A network of excellence in remediation of the polluted environment. In: ConSoil 2003, Ghent, Belgium, 12 May 2003.
  • Brookes A, Judd S, Reid E, Germain E, Smith S, Alvarez H, Le-Clech P, Stephenson T, Turra E & Jefferson B (2003) Characterisation and impact of biomass foulants in membrane bioreactors. In: 5th International Membrane Science and Technology Conference, Sydney, Australia, 10 November 2003.
  • Jefferson B, Judd SJ & Le Cleech P (2002) Determination and Implication for the relative effect of feed quality on fouling in submerged membrane bioreactor. In: 1st IWA Young Researchers Conference, Cranfield, UK, 1 September 2002.
  • Jefferson B, Judd SJ, Jeffrey P & Palmer A (2002) Reliability of biological processes for urban reuse of grey and black waters: Risk and Impact. In: IWA regional symposium on water recycling in Mediterranean region, Iraklio, 26 September 2002.
  • Lodge B, Jefferson B, Judd SJ & Smith S (2002) Towards a more thorough understanding of MBR biology. In: ICOM 2002, Toulouse, France, 7 July 2002.
  • Laine A, Jefferson B & Judd SJ (2002) Technologies for grey to black water reuse: a practical and economic assessment. In: 3rd IWA World Water Congress, Melbourne, Australia, 7 April 2002.
  • Jefferson B, Nazareno C, Parsons SA, Judd SJ & Stuetz R (2002) Membrane gas absorber for H2S removal - technology evaluation and integration into existing odour treatment strategies. In: Odors and Toxic Air Emissions, WEF, Alburquerque, USA, 28 April 2002.
  • Jefferson B, Judd SJ & Le Clech P (2001) The effect of membrane configuration on the performance and operation of membrane bioreactors in terms of critical flux. In: 6th World Congress on Chemical Engineering, Melbourne, Australia, 23 October 2001.
  • Bigg T, Judd SJ & Jefferson B (2001) Kinetics of reductive degradation of azo dye by zero-valent iron in aqueous solution. In: 6th World Congress of Chemical Engineering, Melbourne, Australia, 23 October 2001.
  • Laine A, Jefferson B, Jeffrey P, Judd SJ & Stephenson T (2000) Water recycling from grey to black, the process engineering solution to the water resource problem. In: 2000 IChemE Research Event, Bath, UK, 1 January 2000.
  • Jefferson B, Laine A, Brindle K, Judd S & Stephenson T (1998) Towards a sewerless city. In: Water Environment 1998, Maintaining the flow, London, 26 March 1998.
  • Alvarez-Vazquez, Pidou M, Holdner J & Judd SJ Fouling potential and membrane fouling determination during the treatment of sewage and stabilized leachate using a pilot scale submerged MBR. In: WEFTEC 2007.

Books

  • Judd SJ (2006) The MBR Book. Elsevier.
  • Bigg T & Judd SJ (2005) Remediation of recalcitrant contaminants with zero-valent iron. In: Remediation of recalcitrant contaminants with zero-valent iron, IAHS Publishing, p. 383-390.
  • Judd SJ (2005) 'The future prospects for chemical biocides for pool water treatment' in 'Industrial biocides: Selection and Application'. In: 'The future prospects for chemical biocides for pool water treatment' in 'Industrial biocides: Selection and Application', RSC, p. 137-143.
  • Judd SJ & Jefferson B (2003) Membranes for Industrial Wastewater Recovery and Reuse. Elsevier.
  • Stephenson T, Judd SJ, Jefferson B & Brindle K (2003) Membrane Bioreactors for Wastewater Treatment (Japanese). IWA Publishing.
  • Judd S, Stephenson T (eds), (2002) Process science and engineering for water and wastewater treatment, IWA Publishing.
  • Judd SJ (2002) Industrial experience of Water reuse by membrane technology'. In: Water Recycling and Resource Recovery in Industry, IWA Publishing, p. 472-488.
  • Jefferson B, Judd SJ & Diaper C (2001) Treatment methods of grey water. In: Decentralised Sanitation and Reuse ý Concepts, Systems and Implementation., IWA Publishing, p. 334-353.
  • Stephenson T, Judd SJ, Jefferson B & Brindle K (2000) Membrane Bioreactors for Wastewater Treatment. IWA Publishing.