Academic Profile : Faculty

ddsun.jpg picture
Assoc Prof Sun Delai, Darren
Associate Professor, School of Civil and Environmental Engineering
External Links
Darren obtained his PhD degree in Chemical Engineering from The University of New South Wales, Australia. He has research interests in the field of membrane water and wastewater treatment, water reclamation and heavy metals stabilization, particularly in applying physical and chemical principles for fundamental research. Recently he is heavily engaged in the study of nano materials for water and energy production including hybrid membrane bioreactor, membrane coagulation system and TiO2 based nano-structured/fiber/tube membrane. Externally, Darren holds Shimizu Visiting Professor, Stanford University, USA, visiting professorship, Shandong University, PR China and and visiting Professor, University of Johannesburg, South Africa. He is an International Water Associate (IWA) Fellow, Chair for IWA Specialist Group on Chemical Industries, International Association of Advanced Materials (IAAM) Fellow. Darren was the recipient of many national and international awards such as IWA Innovation Award 2008, UK; Prestigious Engineering Achievement Award 2008 from Institute of Engineering Singapore; Nanyang Award for Innovation and Research 2009 by Nanyang Technological University, Singapore; President Award from President Akira Fujishima of Tokyo University of Science, March 2013, Japan; President Award, Institute of Chemical Engineering, UK 2019; Best Innovation and Enterprise Awards, Business Time and OCBC Bank, Singapore 2021.
- Nanofibe/tube membrane for water and energy (H2 and solar cell) production
- Membrane fouling mechanism, control and prevention
- Multifunctional membrane module design
- 3D printing technology
- Composite membranes and membrane modules for environmental applications
- Reutilization of waste into value-added product.
  • Breaking the Bottleneck of Traditional Coagulation/Flocculation Process with a Multi-functional and Re-usable Nano Coagulant for Sludge Reduction and RO Membrane Fouling Elimination
  • Investigation of IXOM MIEX waste brine treatment and upcycling for zero liquid discharge applications
US 2014/0305864 A1: An Inorganic Fibrous Membrane And A Method For Fabricating Thereof (2020)
Abstract: A method of fabricating an inorganic fibrous membrane, the method comprising the steps of: grafting sulfonated graphene oxide onto a scaffold of inorganic nanofibers to form a suspension of heterojunctions of the sulfonated graphene oxide and the scaffold; filtering the suspension through a support to obtain heterojunctions on the support; drying the heterojunctions on the support; and removing the support to obtain the inorganic fibrous membrane.

US2013/0098833A1: Method of Preparing a Nanocomposite Membrane and Nanocomposite Membranes Prepared Thereof (2020)
Abstract: The present invention relates to a method of preparing a nanocomposite membrane, comprising: (a) providing a nanocomposite solution comprising a polymer solution and nanomaterials; (b) subjecting the nanocomposite solution to a cold water bath to produce the nanocomposite membrane in a gel-like form; and (c) subjecting the gel nanocomposite membrane to a heat treatment to solidify the nanocomposite membrane, wherein the nanomaterials are dispersed within the polymer matrix of the nanocomposite membrane.

US 2010/264097 A1: Hollow Porous Microspheres (2013)
Abstract: The present invention refers to a hollow microsphere having a porous circumferential wall comprised of nanofilaments.