Nanyang Technological University

Aquaporin A/s

Anthony Gordon Fane

William Bernard Krantz

Ebrahim Akhondi

Rong Wang

Xiao Hu

Jia Wei Chew

Madhavi Srinivasan

Chuyang Tang

Tzyy Haur Chong

Farhad Zamani

Changquan Qiu

Chee Kai Chua

Fook-Sin Wong

Jia An

Adrian Yeo

Wen See Tan

Yang Zhao

Siew Leng Loo

Filicia Wicaksana

Adrian Piah Song Yeo

Tian Li

Ee Kwong Tan

Jing Wei

Lee Nuang Sim

Wenming Shen

Jaume Torres

Yi-Ning Wang

Claus Helix-Nielsen

Jia Shin Ho

Jian Yuan Lee

Wing-Keung Adrian Law

Yong Zen Tan

Weiyi Li

Teik Thye Lim

Nyunt Wai Maung

Jiun Hui Low

W B Krantz

Ardcharaporn Vararattanavech

Siang Tze Victor Sim

Hans Gerard Leonard Coster

Victor Siang Tze Sim

Laurentia Setiawan

Stanislaus Raditya Suwarno

Pow Seng Yap

WB Krantz

Claus HÉLIX-Nielsen

A cross-flow membrane filtration channel defined by at least one membrane, wherein at least one surface of the channel is inclined at an angle away from a centreline of the channel in a direction of feed flow in the channel.

Cross-flow membrane filtration channel

A method of forming a forward osmosis membrane having a porous substrate and a rejection layer is provided. The method comprises a) forming a thin film of a polymer solution on a suitable substrate, wherein the polymer solution contains at least one polymer and optionally one or more additives in a suitable solvent, b) immersing the thin film in a coagulant bath to form the porous substrate; and c) forming a rejection layer on the porous substrate. A forward osmosis membrane is also provided.

Forward osmosis membrane and method of forming a forward osmosis membrane

Present invention relates to a thin film composite membrane wherein a thin selective layer, having incorporated amphiphilic vesicles, is supported by a microporous substrate. A process of preparing the thin film composite membrane and its use are also disclosed.

Aquaporin based thin film composite membranes

A method for assessing a state of fouling of a reverse osmosis system is provided. The method includes deriving a plurality of impedance values from a low frequency region of an electrical impedance spectrum of a reverse osmosis membrane comprised in the reverse osmosis system, and determining a state of fouling of the reverse osmosis system based on the plurality of derived impedance values. Use of the method for in-situ monitoring of fouling on a reverse osmosis membrane, and an apparatus for assessing a state of fouling of a reverse osmosis system are also provided.

Method and apparatus for assessing a state of fouling of a reverse osmosis system

The invention relates to an antibacterial cryogel, its preparation method, and its use for disinfecting water. The invention further relates to an antibacterial porous hydrogel.

Antibacterial cryogel and porous hydrogel, their preparation method, and their use for disinfecting water

In various embodiments, a method for determining at least one pore-related parameter of a porous structure is provided. The method includes supplying a volatile liquid into a chamber. The method also includes coating a first surface of the porous structure with an evaporation preventing substance. The method further includes placing the coated porous structure within the chamber. The method additionally includes determining an effective mass of the chamber over a period of time. The method also includes determining the at least one pore-related parameter of an uncoated second surface of the coated porous structure based on the effective mass determined. The second surface of the porous structure is opposite the first surface of the porous structure.

Method and arrangement for determining at least one pore-related parameter of a porous structure

A membrane filtration module configured for use in a filtration reactor, the module comprising: hollow fiber membranes configured to perform filtration of feed fluid in the reactor; and a vibration mechanism configured to vibrate the hollow fiber membranes to generate shear stresses on the surface of the hollow fiber membranes for reducing fouling of the hollow fiber membranes.

Membrane filtration module

A spacer for a membrane module, the spacer comprising: a plurality of first filaments defining a plurality of fluid flow channels, in use the plurality of fluid flow channels being adjacent a membrane of the membrane module; and a plurality of second filaments provided on the plurality of first filaments and extending into the fluid flow channels, the second filaments moveable relative to the first filaments in response to an external stimulus during flow of fluid in the fluid flow channels.

Spacer for a membrane module

A membrane sensor for detecting fouling, the membrane sensor comprising a first chamber having an inlet and an outlet; a second chamber having an outlet; only one membrane, the membrane being disposed between the first chamber and the second chamber for allowing fluid to permeate the membrane from the first chamber to the second chamber; a first pressure transducer configured for obtaining a first pressure upstream of the membrane; a second pressure transducer configured for obtaining a second pressure downstream of the membrane; and a resistance regulator configured for adjusting the second pressure.

Membrane sensor and method of detecting fouling in a fluid

A method for determining at least one pore-related parameter of a porous material is provided. The method includes supplying a volatile liquid into a chamber, placing a porous material within the chamber, spaced apart from and over the volatile liquid, determining an effective mass of the chamber over a period of time, and determining at least one pore-related parameter of the porous material based on the effective mass determined. An arrangement for determining at least one pore-related parameter of a porous material is also provided.

Method and arrangement for determining at least one pore-related parameter of a porous material

A method of determining a state of biofouling of a membrane is provided. The membrane is contained within a flow cell and the flow cell has an outer surface coupled to a tranducer, The method comprises introducing inorganic particles into the flow cell such that the inorganic particles form a part of a top surface of a foulant layer on the membrane. The transducer then emits acoustic waves towards the membrane and an acoustic signature of reflected sound waves are detected. A state of biofouling of the membrane is determined based on the detected acoustic signature. A method and an apparatus are also provided for determining a state of biofouling in commercial membrane modules such as spiral wounded membrane modules.

Method and apparatus for determining biofouling of a membrane

Growing community of inventors

Singapore, Singapore

Anthony Gordon Fane