• 9 WEST 2.08

Accepting Doctoral Students

20042020

Research output per year

If you made any changes in Pure these will be visible here soon.

Personal profile

Research interests

My research interests fall into two areas: the first is green cleaning, and the second is dynamics of small-scale fluid particles in gas-liquid flow systems.

Green cleaning:

I have strong interest in the research area related to surface layers. I have been working on issues related to fouling and cleaning of surface layers in the food, textile, polymer processing, membranes and biotechnological industries since 2004. Fluid Dynamic Gauging (FDG) is a technique developed in my research group to measure the thickness of solid layers deposited on a substrate in situ and in real time. The technique is based on the steady flow of a fluid through a nozzle located near the layer surface, so that the device does not touch the layer but senses its presence, by virtue of its influence on the flow rate of the fluid. Measurement of the flow rate tells us the thickness and strength (cohesive and adhesive) of the surface layers. With careful mechanical design, FDG has been extended to an automated system that can now measure thickness and attachment strength or deformability of fouling layers in situ and in real time. The advances have come through combining experimental measurements and numerical modelling.

Another area of interest is the design and development of multi-functional adsorbent structures for air purification. The structures (e.g. polymeric foams and monolithic activated carbon) are low burden (low pressure drop) and capable of physically and chemically adsorb toxic species from air.  I am concentrating on a number of applications including VOC removal and respiratory protection equipment for emergency responders.

Dynamics of small scale fluid particles in gas-liquid flow systems:

Bubbles and droplets, are ubiquitous in everyday life, both in nature and in technology. My research on gas-liquid systems is centred on understanding the hydrodynamics and interfacial interactions of small scaled fluid particles with their continuous phase during the course of their movements in a piece of equipment. The most important feature of the fluid particles that sets them apart from the rigid particles is their mobile surface and their ability to deform during motion. A combination of experimental and computational techniques are used to understand the dynamics of these bubbles is process such as wastewater treatment, fermentation and surface cleaning.

Willing to supervise doctoral students

Interested in supervising students studying:

  • Green cleaning
  • Air purification
  • Water treatment
  • Membranes
  • Sensors for fouling and cleaning
  • Gas-liquid phase flows
  • Non-Newtonian fluids

Education/Academic qualification

Doctor of Philosophy, University of Cambridge

Award Date: 1 Jan 2005

Fingerprint Dive into the research topics where John Chew is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 3 Similar Profiles

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Projects

KTP with Norgren Ltd

Perera, S. & Chew, J.

Innovate UK

24/06/1923/06/21

Project: Central government, health and local authorities

Equipment Supply Agreement

Chew, J.

1/06/16 → …

Project: Research-related funding

Equipment Supply Agreement

Chew, J.

4/01/16 → …

Project: Research-related funding

Research Output

Bactericidal – Bacteriostatic Foam Filters for Air Treatment

G, R., Camus, O., Chew, J., Crittenden, B. & Perera, S., 10 Apr 2020, In : ACS Applied Polymer Materials. 2, 4, p. 1569-1578 10 p., 2.

Research output: Contribution to journalArticle

High flux thin-film nanocomposites with embedded boron nitride nanotubes for nanofiltration

Casanova, S., Liu, T. Y., Chew, J., Livingston, A. G. & Mattia, D., 1 Mar 2020, In : Journal of Membrane Science. 597, 117749.

Research output: Contribution to journalArticle

1 Citation (Scopus)

In situ characterisation of size distribution and rise velocity of microbubbles by high-speed photography

Swart, B., Zhao, Y., Khaku, M., Che, E., Maltby, R., Chew, Y. M. J. & Wenk, J., 23 May 2020, In : Chemical Engineering Science. 225, 115836.

Research output: Contribution to journalArticle

Towards Next Generation “Smart” Tandem Catalysts with Sandwiched Mussel-inspired Layer Switch

Wei, W., Thakur, V. K., Chew, J. & Li, S., 18 May 2020, In : Materials Today Chemistry. 17, 100286.

Research output: Contribution to journalArticle

3D printed composite membranes with enhanced anti-fouling behaviour

Al-Shimmery, A., Mazinani, S., Ji, J., Chew, Y. M. J. & Mattia, D., 15 Mar 2019, In : Journal of Membrane Science. 574, p. 76-85 10 p.

Research output: Contribution to journalArticle

Open Access
File
14 Citations (Scopus)
17 Downloads (Pure)

Datasets

Dataset for "3D Printed Contactor for Enhanced Oil Droplets Coalescence"

Al-Shimmery, A. (Creator), Mazinani, S. (Creator), Flynn, J. (Creator), Chew, J. (Creator) & Mattia, D. (Creator), University of Bath, 19 Jul 2019

Dataset

Dataset for "3D Printed Fouling-Resistant Composite Membranes"

Mazinani, S. (Creator), Al-Shimmery, A. (Creator), Chew, J. (Creator) & Mattia, D. (Creator), University of Bath, 23 Aug 2019

Dataset

Dataset for ''High Flux Thin-Film Nanocomposites with Embedded Boron Nitride Nanotubes for Nanofiltration''

Casanova, S. (Creator), Liu, T. Y. (Creator), Chew, J. (Creator), Livingston, A. G. (Creator) & Mattia, D. (Creator), University of Bath, 9 Oct 2019

Dataset

Dataset for "3D Printed composite membranes with enhanced anti-fouling behaviour”

Al-Shimmery, A. (Creator), Mattia, D. (Creator), Chew, J. (Creator), Mazinani, S. (Creator) & Ji, J. (Creator), University of Bath, 21 Dec 2018

Dataset

Thesis

3D printed membranes for oil-water separation processes

Author: Al-Shimmery, A., 4 Sep 2019

Supervisor: Chew, Y. (Supervisor) & Mattia, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

Advanced Studies of Membrane Fouling: Investigation of Cake Fouling Using Fluid Dynamic Gauging

Author: Lewis, W., 5 Jan 2015

Supervisor: Chew, Y. (Supervisor) & Bird, M. (Supervisor)

Student thesis: Doctoral ThesisPhD

File

An investigation into the strength and thickness of biofouling deposits to optimise chemical, water and energy use in industrial process cleaning

Author: Peck, O., 26 Sep 2017

Supervisor: Chew, Y. (Supervisor), Bird, M. (Supervisor) & Bolhuis, A. (Advisor)

Student thesis: Doctoral ThesisPhD

File

Computational and experimental studies of mixing for industrial multiphase processes

Author: Maltby, R., 19 Feb 2020

Supervisor: Chew, Y. (Supervisor) & Leak, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

File

Development And Computational Studies Of Multi-Channel Adsorbent Hollow Fibre For The Removal Of Volatile Organic Compounds

Author: Alsharif, A., 1 Jul 2017

Supervisor: Perera, S. (Supervisor), Chew, Y. (Supervisor) & Lukyanov, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

File