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SiC Tubular Membrane
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Product: Views:343SiC Tubular Membrane 
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Last updated: 2024-08-01 06:16
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Silicon carbide tubular membrane products

 

 

Materials are supporting the iteration and evolution of membrane separation products, while the structure of membrane components is also constantly innovating and breaking through. The boundary between the application scenarios of organic and inorganic membranes is gradually becoming blurred.

 

Silicon carbide ceramic membrane is a high precision microfiltration & ultrafiltration grade membrane separation product made of high purity silicon carbide fine powder through recrystallization sintering technology.

 

It has high flux, high corrosion resistance, easy cleaning, and long service life.

 

At present, the highest filtration precision can reach 20nm. It uses unique design and manufacturing processes to combine inert silicon carbide materials and screened non-ceramic materials to form the inherently strong and durable membrane. This guarantees its long term service and durability in harsh environments.

 

It uses equivalent or lower investment cost compared to organic ultrafiltration membranes to create SIC carbide inorganic ultrafiltration products that are more reliable, easier to operate, and have longer service life, meanwhile, achieve the lowest total life cycle cost in the long time service.

 

Characteristics of silicon carbide tubular membrane

 

● The silicon carbide membrane is produced by recrystallization process, with a sintering temperature of 2400 ℃. During the sintering process, the sintering neck between the silicon carbide aggregates undergoes a phase transition from solid to gas to solid, with an opening rate of over 45%. The formed filter channel has strong connectivity, coupled with the inherent hydrophilicity of the silicon carbide material (contact angle only 0.3 °), resulting in a pure water flux of up to 3200LMH, and is hydrophilic and oleophobic.

● The isoelectric point of the silicon carbide membrane is around pH 3, and the surface of the membrane can maintain being negatively charged over a wide pH range, improving its pollution resistance.

● Excellent chemical stability, capable of working in extreme environments (pH range 1-14); a variety of cleaning plans can be developed based on the characteristics of pollution factors; Oxidants are fully tolerant, including ozone and hydroxyl radicals.

 

Product Features and Advantages

 

★High flux, 3-10 times compared to organic membranes;

★Small footprint, saving land;

★Water consumption for backwashing is reduced by more than 50%;

★Chemical tolerance, capable of working in pH 0-14 environment, acid and alkali resistant;

★The service life is 2-10 times longer than the organic membranes, lower replacement cost;

★Allow for strict chemical cleaning, high flexibility in cleaning, and the flux is easy to recover after cleaning;

★The performance is easy to recover after pollution and blockage, eliminating the cost of membrane replacement caused by unexpected failures;

★ Low system preprocessing requirements, reducing total system investment and operating costs;

★Higher Pressure differences between membranes allowed, so low temprature source water flux increases;

★No membrane broken problem, and less maintainance required.

 

Application Scenarios

 

Washing and concentration of nano powder

Oil-water separation (oilfield reinjection water, liquid hazardous waste regeneration)

Material separation

Solid liquid separation with high solid content (mine water, biological fermentation broth)

Solid liquid separation in harsh chemical environment (acid purification, nano powder catalyst recovery)

 

FAQ

 

Q:What is a tubular membrane?

A:Tubular membrane modules are tube-like structures with porous walls. Tubular modules work through tangential cross-flow and are generally used to process difficult feed streams such as those with high dissolved solids, high suspended solids, and/or oil, grease, or fats.

Q:What are ceramic membranes used for?

A:Based on their unique structure with excellent thermal and chemical stability, ceramic membranes have been widely applied for oil/water separations, industrial wastewater, and hazardous waste treatment. Ceramic membranes are known to have better antifouling properties and are easier to be cleaned.

Q:What makes the silicon carbide ceramic tubular membranes so effective?

A:What makes silicon carbide ceramic tubular membranes so effective is their unique structure, which features a porous ceramic layer that allows water to pass through while capturing solids, bacteria, and other impurities. This makes them ideal for a wide range of applications, including the treatment of industrial wastewater, desalination of seawater, and the purification of drinking water.

 

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