TECHNOLOGY

2 to 4 times higher permeability
Enhanced rejection
2 to 8 times lower fouling

H2MO BPM technology in a nutshell

BPM membranes are made by forming a thin selective layer on a hollow fibre substrate with a unique formulation of bio-materials to yield enhanced water permeability and highly selective characteristics.

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The emergence of technology

To drastically enhance performances in 3 areas of water separation membranes for higher Capacity (permeability), higher Selectivity (Rejection) and lower Fouling. Prof. Wang Rong of SMTC, NTU/NEWRI, led a team who in 2018 pulled off a worlds first in developing a method of making membrane with

2 to 4 times higher permeability
Enhanced rejection
2 to 8 times lower fouling

Inspired by the cellular walls in nature, the team researched and developed the Bio-Programmable Membrane Technology; where a bio-material formulation, derived from inert cellular materials, was applied onto a polymeric hollow-fiber substrate, to form a thin but highly permeable and selective barrier layer.

The BPM Technology is today used to manufacture membranes of different characteristics through the application of different bio-material formulations; enabling the production of a variety of Reverse Osmosis (RO), Nanofiltration (NF) and Forward Osmosis (FO) membranes.

Preparation and types of BPM films

In order to prepare high efficient BPM membrane, we first need to make high-performance hollow fiber membrane filaments. A variety of new polymer materials are used to prepare the casting liquid and core liquid through the spinneret at the same time out, after the air bath, the casting liquid into the coagulation bath for the formation of film filaments. The hollow fiber filaments with high pressure resistance, high flux and high rejection provide a solid foundation for the fabrication of BPM membranes.

Preparation and types of BPM films