2021 ModCad Workshop
A rational and mathematical understanding of the science behind cleaning and decontamination problems
Cleaning and decontamination problems are ubiquitous in all human activities: from household cleaning to maintaining hygiene standards in the food and pharmaceutic industry, and safe removal of toxic materials. It is a universal topic of national and international importance. There is also an increasing need to rationalise scientifically the underlying physical, chemical and biological processes involved in cleaning and decontamination.
The aims of the 2021 Workshop on Cleaning were:
(i) To map expertise and current activities in the area of cleaning and decontamination in the UK and beyond, in all relevant disciplines, and particularly those where quantitative methods are employed as this supports the transfer of solutions or approaches from one field to another.
(ii) To provide a forum where industrial and governmental stakeholders can share aspects of future needs, both immediate and long term.
(iii) To identify strategic needs for research, which could take the form of modelling methods, measurement techniques, socio-economic trends, or metrics for assessing and quantifying the impact of cleaning and decontamination operations and challenges.
(iv) To ensure that the workshop materials will be freely available as an archive for all workers in the area.
The workshop took the form of a 2.5 day online meeting, run on the Sococo platform with keynote presentations on Zoom, from 20th-22nd April 2021. A follow up hybrid meeting was held on 20th September 2021 at Jesus College, Cambridge, with participation in person and online.
Development of capabilities to support large-scale biological incident response operations
Worth is a microbiologist at the US EPA. His work involves developing and improving capabilities for decontamination, sampling and waste management after a biological contamination incident.
Cleaning of manufacturing equipment in Pharma – current approaches and challenges
Conor is Head of Validation / Product Lifecycle Management for Pharma Supply at GSK. He is responsible for Process and Cleaning validation standards definition and implementation in Global Pharma Supply – primary manufacturing, drug product formulation, biopharm, steriles and emerging market supply.
Sam is a a public health scientist at Public Health England (PHE), currently working on global public health activities. He has expertise in international capacity building for chemical and biological events, CBRN response, decontamination, risk assessment, and training. He has recently worked on PHE’s mass casualty decontamination research programme, and is co-leading decontamination research projects under the NIHR and Health Protection Research Unit for Chemical and Radiation Threats and Hazards.
Scaling up (and scaling down) cleaning
Peter is Professor of Chemical Engineering at the School of Chemical Engineering, University of Birmingham. His main research interest is in the hygienic design of food processes, food structure development and food manufacture. The aim of his research is to apply the principles of chemical engineering to the problems of the food industry.
Current research on cleaning and sanitation in food manufacturing facilities
Dennis is the Dale A. Seiberling Dairy and Food Engineering Professor at the Department of Food Science and Technology, Ohio State University. He is involved in teaching and research with a focus on sustainability of the food system.
Alex is Decontamination Centre of Expertise Lead at Sellafield Ltd.
Fluid mechanics of cleaning and decontamination
Julien is Senior Lecturer at the Department of Mathematics, University of Manchester. His research interests are in the area of fluid mechanics. He specialises in the mathematical modelling of cleaning and decontamination problems on surfaces.
Numerical simulations of multiphase flows in the presence of surfactants
Omar is Professor of Fluid Mechanics and RAEng/Petronas Research Chair in Multiphase Fluid Dynamics at the Department of Chemical Engineering, Imperial College London. His research interests are in interfacial fluid mechanics, multiphase flows, mathematical and numerical modelling, complex fluids and bio-fluid dynamics.
Biofilms disinfection and cleaning – an overview
Luís is Emeritus Professor at the Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto. His major research interests are in biofilm engineering, heat exchanger fouling and biological reactors for wastewater treatment.
Respiratory hazards in healthcare cleaning
Martin is a Consultant in Occupational Medicine within the UK National Health Service and a Clinical Senior Lecturer at The University of Manchester. For 20 years, he has been researching the link between chemical structure and asthma causation using a computerised prediction model. More recently he and his team have applied this model to the identification of hazardous individual chemical ingredients within cleaning and disinfectant products.n Occupational Medicine at UK NHS and The University of Manchester. For 20 years, he has been researching the link between asthma amongst healthcare cleaning staff and the identification of hazardous individual chemical ingredients within cleaning and disinfectant products. With his research group, he has recently developed a predictive model to identify potential respiratory hazards in cleaning products.
Ramblings on the business angle: what suppliers and cleaners need. How do we get cleaning right?
Jim has worked in surface decontamination for over 35 years, much of this has been associated with cleaning in the food processing industry. Currently Jim is Director of Chemical Consulting Solutions Ltd and is working in a number of areas, including Low Environmental Impact Detergents. Previous Jim was for 17 years head of R&D at Holchem Laboratories Ltd. Jim is involved in a number of projects linked to food hygiene at Manchester Metropolitan University, and is a member of the Executive Board of the British Association of Chemical Specialities.
The business angle
Allister is Senior Scientist at Warwick Chemicals, which is part of the Lubrizol Corporation. He does research in microbiology, and is particularly interested in antimicrobials, biofilm formation and bacteriology.
Contributed talks & posters
Along with the 12 keynote speakers above, 17 UK and international scientists presented their latest research findings on cleaning and decontamination problems. The short talks and posters listed below show the breadth and depth of the scientific research related to cleaning and decontamination.
A simple model for desulphurisation of flue gas using reactive filters
Interfacial instabilities during microchannel cleaning with a viscoelastic fluid
Surface-washing of contaminated porous substrates
Hydrogel models to study contaminant trapping in polymers
Advances and challenges towards a predictive model for cleaning very thin viscoplastic soil layers using impinging liquid jets
Usability of results from micromanipulation experiments to get critical loads for adhesive and cohesive removal of soils
Droplet dynamics on liquid infused surfaces
Characterizing Hazard Mitigation Efficacy for Different Agent Distributions
How a water drop removes a particle from a hydrophobic surface
Green nanomaterials for environmental decontamination
Roles of surface wetting and bulk mass transport in the contamination of polyurethane-based coatings by distilled mustard blister agent, HD
Cleaning in a bag
Development and Application of Model for Decontamination of Polymer-Based Materials
Robots, Sensors and Artificial Intelligence: How can digital technologies improve cleaning processes?
Concept for a self-learning adaptive tank cleaning strategy
Fraunhofer Institute for Process Engineering and Packaging (IVV)
Cleaning by microbubbles generated by fluidic oscillation with and without plasma injection
The workshop has provided a survey of the expertise and know-how across scientific disciplines related to cleaning and decontamination and its modelling. Many applications share the same underpinning fundamental science, which is complex and multidisciplinary. Some of the science is quite advanced, but there are also clear gaps both at fundamental level, and in their implementation. The key outcomes of the workshop are:
- A roadmap document which identifies the state-of-the-art, and proposes a roadmap to address the key knowledge gaps on cleaning and decontamination science and how to implement them in practice
- The website How clean is clean? presents the science behind cleaning. Its resources are both for the general public and experts in the subject area. It will be updated with new resources over time. It will also feature key events on the topic, such as conferences and workshops.
Organisers & Sponsors
The Workshop was supported by an EPSRC Workshop Grant (EP/T033991/1 & EP/V000012/1)
Dr Graham Christie (University of Cambridge)
Prof. Peter Fryer (University of Birmingham)
Dr Ian Hall (University of Manchester)
Dr Julien Landel (University of Manchester)
Prof. Kath Whitehead (Manchester Metropolitan University)
Prof. Ian Wilson (University of Cambridge, Host Organiser)
Special thanks to…