SiC Flat Sheet Membranes

Semicorex SiC flat sheet membranes are the crucial elements for ultrafiltration membrane modules, and each membrane module consists of 42 pcs of flat sheet membranes. There are countless micropores distributed in the SiC flat sheet membranes. Once wastewater flows into ultrafiltration membrane modules, they precisely intercept activated sludge, colloids, bacteria and suspended particles via micropores in the SiC flat sheet membranes under the action of cross-membrane pressure, thus producing clean and pollution-free water.

Advantages of Semicorex SiC flat sheet membranes in MBR systems

MBR systems are composed of ultrafiltration membrane modules and biochemical reactors, which fully integrate biodegradation and membrane separation technologies. During wastewater treatment, the biochemical reactor is responsible for decomposing organic pollutants in the wastewater, while the ultrafiltration membrane module is responsible for solid-liquid separation of the wastewater. Semicorex SiC flat sheet membranes, the indispensable filter elements of the ultrafiltration membrane module, exhibit the following outstanding performance characteristics in MBR systems.

1. Superior corrosion resistance for harsh working conditions

Having a pH tolerance range of 0–14, Semicorex SiC flat sheet membranes can withstand the corrosion from strong acid, strong alkali, concentrated oxidants and organic solvents. They can perform steadily for a long time and are free from performance degradation when treating brine, industrial chemical wastewater, and landfill leachate.

2. High flux for excellent treatment efficiency

With a surface water contact angle of 10.3°, Semicorex SiC flat sheet membranes deliver outstanding hydrophilicity, which enables them to maintain stable operating fluxes of 60-100 LMH. This is 3-4 times higher than conventional organic membranes. For the same wastewater throughput, less membrane area and smaller membrane tanks are required, significantly saving civil engineering investment.

3. Strong fouling resistance and easy cleaning

Semicorex SiC flat sheet membranes’ surface carries strong negative charges to electrostatically repel sludge, colloids and oil contaminants, which enables them to have remarkable anti-fouling performance. Once fouled, full flux recovery can be achieved through cleaning with high-concentration acids, alkalis and oxidants, greatly extending cleaning cycles and simplifying routine maintenance.

4. Long service life and low lifecycle costs

Semicorex SiC flat sheet membranes' service life can exceed 10 years, which is 3 to 4 times longer than conventional organic membranes. With such a long lifespan, using Semicorex SiC flat sheet membranes can effectively avoid frequent membrane replacements and significantly reduce consumable costs as well as equipment downtime.

Applications of Semicorex SiC flat sheet membranes

1. Wastewater treatment like membrane bio-reactor, domestic sewage and municipal sewage treatment. 

2. Seawater desalination pre-treatment.

3. High standard drinking water purification.

4. Sludge thickening treatment.

5. Brine purification.

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