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The key function of ultrafiltration membrane is to provide a reliable retention of suspended solids and microorganisms, making it ideal for drinking water applications, wastewater recycling and as an excellent pre-treatment to reverse osmosis (RO) systems.
The key know-how is the membrane itself. EuroTec develops high strength, high porosity and high chemical resistance PVDF hollow fibre membranes with a well-controlled uniform small and narrow pore size distribution, resulting in consistently superior filtrate quality and excellent permeability with low transmembrane pressure (TMP).
EuroTec ultrafiltration membranes are engineered to provide cost effective solutions with high operating reliability and superior filtrate quality through years of research and actual implementation in various water applications that undergo challenging circumstances has proven its viability and resilience in quality performance. If you want to learn more about the specific products we offer, take a look at our product manual.
Engineered Membrane Systems Membrane systems are built for a wide range of water treatment applications to separate suspended solids or dissolved matters from liquid on a filtration process that utilizing different types of membrane technologies.
From brackish water reverse osmosis (BWRO) to seawater reverse osmosis (SWRO) membrane systems equipped with EuroTec proprietary high anti-fouling ultrafiltration membranes as pre-treatment, EuroTec’s Engineered Membrane System (EMS) are designed for high performance efficiency, compact footprint, modular, robust and reliability.
EuroTec’s Engineered Membrane System (EMS) are customizable depending on the users’ needs, allowing for flexibility and easy to operate, is a sustainable solution to industries and communities facing the water shortage challenges and water usage restrictions.
EuroTec UF membrane is consistently able to provide high quality filtrate output in spite of the wide fluctuations in feed water quality. As an absolute barrier, anything larger than the rated pore size (which includes suspended solids and microorganisms) will be retained, regardless of the type of constituents in the feed water. This gives assurance to users and operators that only filtrate output of low turbidity and virtually non-existent microorganisms are provided for direct usage or further downstream treatment.
The EuroTec UF membrane base chemistry is a modified quality of Polyvinylidene fluoride (PVDF) material, which inherently has higher chemical resistance – especially in terms of oxidizer tolerance as well as being able to operate within an extremely wide pH range (1 – 13).
This has a direct positive impact on membrane lifetime as higher chemical resistance translates to slower rates of wear-and-tear, of which can be largely attributed to the frequency of chemical cleaning cycles and the membrane surface direct contact with chemical agents in the feed water.
The EuroTec UF hollow fibre membrane is an outside-in flow configuration, which in comparison to inside-out flow membrane, allows for higher fouling tolerance as well as more effective removal of foulants from the surface via a combination of backwash and air scouring.
The outside-in flow membrane is more versatile in regards to the type and quality of feed water it can accept. Also, it typically requires less pre-treatment such as coagulation and flocculation.
High porosity is only desirable when pore size distribution, i.e. the size differences between each individual pore, is well-controlled. If pore sizes vary too much, the large pores tend to be fouled quickly leading to a rapid drop in permeability.
With EuroTec unique fibre spinning technology, our UF membrane is able to achieve an extremely narrow pore size distribution. The pore sizes at the surface of the membrane are consistently of 0.025 micron diameter with very minimal deviation.
The result of this is an enhancement of the membrane’s anti-fouling capability and better filtrate water quality.
The surface of the EuroTec UF membrane is essentially a highly porous, hydrophilic filtration layer. In addition, the fibre is designed to be single-skinned where the filtration occurs only at the surface and the rest of the membrane is the porous supporting layer. Each fibre is also of asymmetric structure.
Consequently, all these factors collectively allow for higher permeability and the achievement of higher flux rates.
The EuroTec UF membrane hollow fibres are designed to have a sponge-like structure without the presence of macrovoids to compromise its structural integrity.
This is achieved using an unique VNIPS fibre spinning method – a combination of vapour-induced as well as non-solvent induced phase separation techniques.
The result is a high strength, high durability membrane with very minimal fibre breakages that is able to deliver a long service life with low maintenance requirements.
Take a look at EuroTec’s latest Brochure to learn more about the latest Membrane Module & Systems technology
