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Personal profile


I am a practical microbiologist with over 25 years experience working at the interface between research and industry. I have two independent research themes: firstly Environmental Microbiology and secondly Disinfection and Infection Control.

In the case of Environmental Microbiology I have a longstanding profile as a national and international expert in gas generation, anaerobic microbiology and the microbiology of radioactive waste disposal facilities. Much of my current research is focused on the anaerobic microbiology of extreme environments particularly hyper alkaline industrial sites employing both moelcular analysis of the associated populations and the isolation of the novel microbes present. 

In the case of disinfection and infection control I manage the industry focussed Hygiene and Disinfection laboratory which has assisted a wide range of companies to take their infection control technologies from the lab bench to the marketplace. The laboratory performs a wide range of both bespoke and standard test within a QA regime consistent with EN17025. 

Research Expertise and Interests

  • Biodegradation 
  • Gas generation (CH4, H2 etc)
  • Corrosion
  • Molecualr microbiology 
  • Anaerobic degradation of pollutants and polymers
  • Development and testing of bactericidal sporicidal and fungacidal products for medical/industrial/domestic markets 


Research Degree Supervision

Click Here to see all postgraduate research opportunities with Professor Paul Humphreys


  • Waste Disposal
  • Biocidal Products
  • Polymeric Organic Materials
  • Anaerobic Microbiology

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Projects 2011 2017

Resource Recovery and Remediation of Alkaline Wastes

Humphreys, P. & Mayes, W. M.


Project: ResearchResearch Council

Chlorhexidine resistance in biofilm forming pathogens

Humphreys, P.


Project: ResearchResearch Council

The Post-Disposal Behaviour of C-14 and Irradiated Graphite

Humphreys, P., Cooke, D., Bond, G., Heard, P., Bligh Scott, T. & Eccles, H.


Project: ResearchResearch Council

Research Output 2001 2019

Developing Cellulosic Waste Products as Platform Chemicals: Protecting Group Chemistry of α-Glucoisosaccharinic Acid

Almond, M., Suleiman Galadima, M., Hawkins, M., Winder, D., Robshaw, T., Waddoups, M., Humphreys, P. & Laws, A., Jan 2018, In : Carbohydrate Research. 455, p. 97-105 9 p.

Research output: Contribution to journalArticle

Open Access
Waste Products
Pentanoic Acids
Hydroxyl Radical
Hand Disinfection
Staphylococcus epidermidis
Stem Cells

Extraction of the same novel homoglycan mixture from two different strains of Bifidobacterium animalis and three strains of Bifidobacterium breve.

Alhudhud, M., Sadiq, S., Ngo, H., Hidalgo-Cantabrana, C., Ruas-Madiedo, P., Van Sinderen, D., Humphreys, P. & Laws, A., 2018, In : Beneficial microbes. p. 663-674 12 p.

Research output: Contribution to journalArticle

Molecular Weight

Genomic Insights Into A Novel, Alkalitolerant Nitrogen Fixing Bacteria, Azonexus sp. Strain ZS02.

Salah, Z., Charles, C., Humphreys, P., Laws, A. & Rout, S., Nov 2018, In : Journal of Genomics. 7, 6 p.

Research output: Contribution to journalArticle

Open Access
Genome Size
4 Citations

Sustained Bauxite Residue Rehabilitation with Gypsum and Organic Matter 16 years after Initial Treatment

Bray, A. W., Stewart, D. I., Courtney, R., Rout, S. P., Humphreys, P. N., Mayes, W. M. & Burke, I. T., 2 Jan 2018, In : Environmental Science & Technology. 52, 1, p. 152-161 10 p.

Research output: Contribution to journalArticle

Open Access
Calcium Sulfate
Aluminum Oxide
Patient rehabilitation
Biological materials