Ultrafiltration - www.ross-eng.com

Mechanical Processes

Ultrafiltration uses a semipermeable membrane to remove particles, microorganisms, and macromolecules from water.

It operates on the principle of size exclusion, where the membrane has tiny pores that allow water to pass through while blocking larger particles and contaminants. Ultrafiltration is effective in purifying water, making it suitable for various applications, including drinking water purification, wastewater treatment, and industrial processes.

Ceramic membrane filtration offers several advantages over conventional filtration methods, including higher filtration efficiency, longer lifespan, and lower operating costs. Encompassing high pressure, low pressure and coated technologies, these can be used for treating various water sources, including drinking water, wastewater, industrial process water.

RSE has built a collaborative partnership with industry leading suppliers to design modular solutions with integrated filtration and Coagulation technologies. Incorporating suppliers Ceramic membrane technologies into RSE’s modular solutions offering allows the facilitation of fully off-site built and tested solutions for our clients.

Our membrane systems operate at similar flux levels (200 lmh in n-2 operation) and clean through a combination of regular backwashing, chemical-enhanced backwashing and periodic Clean in Place (CIP). The back washing frequency is every 150l/m2 of flow through and the CEBW every 1,500 l/m2. One requires an acid, hydrogen peroxide, caustic and hypo clean every CEBW whereas the other system alternates hydrogen peroxide/ acid and hypo.

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Polymeric ultrafiltration is a water treatment process that utilises membranes made from synthetic polymers to separate suspended solids, colloids, and large molecules from water. These membranes have a porous structure with precise pore sizes typically ranging from 0.1 to 0.001 micrometers, allowing them to effectively remove particles, bacteria, viruses, proteins, and other contaminants from water.

During the ultrafiltration process, water is forced through the polymeric membrane under pressure, while the contaminants are retained on the membrane surface or within its pores. The purified water, known as permeate, passes through the membrane and is collected for further use, while the concentrated contaminants, known as retentate, are discharged from the system.

Polymeric ultrafiltration is widely used in various water treatment applications, including drinking water purification, wastewater treatment, industrial process water treatment, and water reuse. It offers several advantages, such as high filtration efficiency, compact system design, and resistance to fouling and chemical degradation. Additionally, polymeric membranes are relatively cost-effective compared to other membrane materials, making them a popular choice for water filtration systems.

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