membrane

High Performance Membrane Products


Membrane technology is widely used in water and wastewater treatment. One of our key strengths is in Membrane Bioreactor (MBR), an advanced wastewater treatment technology which combines membrane separation with biological wastewater treatment. With significant removal rates of contaminants, the result is excellent treated water quality that is virtually free of bacteria, microbes and other suspended solids and can be directly reused or further purified using the reverse osmosis, without requiring further pre-treatment. With MBR, there is no need for sedimentation tank, greatly enhancing the efficiency of the reactor and reducing its footprint occupying approximately 20% to 30% of the space required by a traditional biological treatment plant.

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Leader has positioned ourselves at the forefront of membrane manufacturing and application with the introduction of 3D printing technology, an innovative technology which can produce high quality membrane at a fraction of the cost of conventional spinning or extrusion processes. 3D printing membrane is added in nano material to mix with conventional PVDF membrane material and produced through a novel 3D printer. The 3D printer can print several million nano fibres with pre-set arrangement in each layer. Multiple layers of nano fibres are further compressed with automatic control by computers. Membrane pore size can be accurately controlled and well distributed to requirements, greatly reducing membrane manufacturing cost (by at least 80%). The quality of membrane is superior and with more than doubled extended service life span. 3D printing allows easy customization of membrane properties, a great advantage in developing customized solution for industrial wastewater treatment and is a revolutionary upgrade in membrane manufacturing.

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Leader's 3D printers with high printing resolution, high efficiency/ speed and a wide material applicability has garnered much interest and can potentially reshape research and development in this field. Our technology prints ultra-thin membranes consisting of millions of nanofibers. This helps the membrane achieve a faster water flow rate. This also translate to reduced costs for infrastructure, labour, and land. Maintenance needs are reduced as well, as it is more resistant to biofouling from breakage.

Presently, 3D printing membranes have been produced in Singapore and used in traditional municipal, printing and dyeing and semiconductor wastewater treatment. Leader plans to invest in a domestic factory to produce 3D printed membranes and widely apply this technology in China.

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Characteristics of 3D Printed Membranes

•Flat sheet membrane

•Lower manufacturing cost

•Small footprint, clean production and near zero emission

•Compared with traditionally used polymer or ceramic membranes, the flux is larger (up to 5 times)

•Larger surface area to capture or repel pollutants, while allowing water molecules to pass through at a faster flow rate.

•Excellent stain resistance and low maintenance costs

•High strength and resistance due to the addition of nano material in manufacturing.

•Longer life span and more durable


3D printed membranes build new efficiencies and competencies and help propel companies towards advanced manufacturing.

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