Imperial College London

Emeritus ProfessorNigelGraham

Faculty of EngineeringDepartment of Civil and Environmental Engineering

Senior Research Investigator



n.graham Website




Miss Judith Barritt +44 (0)20 7594 5967




406Skempton BuildingSouth Kensington Campus





Professor Nigel J.D. Graham is Professor of Environmental Engineering and previously Head of the Environmental and Water Resource Engineering Section. He has research interests in the field of Unit Processes for Water and Wastewater Treatment, and Water Supply Engineering. He has degrees from the University of Cambridge (BA, MA, ScD) and Imperial College London (MSc, DIC, PhD) and is a Chartered Engineer with corporate membership of the Institution of Civil Engineers (FICE), the Institution of Chemical Engineers (FIChemE) and the Chartered Institution of Water and Environmental Management (FCIWEM). He is an elected Fellow of the International Water Association, and was a co-recipient of the Institution of Civil Engineers Telford Gold Medal in 2010.

Professor Graham is a former Course Director of the MSc Course in Environmental Engineering and during 2010-12 he was advisor to the Faculty of Engineering on Environment and Water research. Professor Graham is an Honorary Professor at The Hong Kong Polytechnic University and holds a visiting Professorship at the Harbin Institute of Technology, China. Since 1990 he has served as Associate Editor of Ozone: Science and Engineering, the peer-review journal of the International Ozone Association.



Wang Z, Chen R, Li Y, et al., 2023, Protein-folding-inspired approach for UF fouling mitigation using elevated membrane cleaning temperature and residual hydrophobic-modified flocculant after flocculation-sedimentation pre-treatment, Water Research, Vol:236, ISSN:0043-1354, Pages:1-12

Liu M, Graham NJD, Xu L, et al., 2023, Bubbleless air shapes biofilms and facilitates natural organic matter transformation in biological activated carbon., Environmental Science and Technology (washington), Vol:57, ISSN:0013-936X, Pages:4543-4555

Li Y, Wang Y, Jin J, et al., 2023, Enhanced removal of trace pesticides and alleviation of membrane fouling using hydrophobic-modified inorganic-organic hybrid flocculants in the flocculation-sedimentation-ultrafiltration process for surface water treatment, Water Research, Vol:229, ISSN:0043-1354

Wang L, Song S, Xu L, et al., 2022, Beneficial role of pre- and post-ozonation in a low rate biofiltration-ultrafiltration process treating reclaimed water, Water Research, Vol:226, ISSN:0043-1354

Sun Y, Zhang Q, Clark JH, et al., 2022, Tailoring wood waste biochar as a reusable microwave absorbent for pollutant removal: Structure-property-performance relationship and iron-carbon interaction, Bioresource Technology, Vol:362, ISSN:0960-8524

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