Ceramic Membrane Ultrafiltration Technology

May 2019
Ceramic Membrane Ultrafiltration Technology

Structure of Ceramic Ultrafiltration Membrane

Ceramic Ultrafiltration Membrane has excellent chemical corrosion resistance. It is suitable for operation in 0-14 pH environment and oxidation resistance. It can be cleaned and regenerated with strong oxidants such as high NACIO content. The ceramic membrane is made of - A1O 2/ZrO2. The pore size of the membrane is less than 50 mm. The membrane tube consists of support, transition layer and membrane layer. Supporter rice is made of imported high purity a -A1O2 sintered at high temperature. The excess layer is sintered at high temperature by ZrO2. The film layer is coated with modified ZO2 material on the surface of the excess layer and sintered at high temperature.

Filtration Process of the Ceramic Membrane

The operation mode of ceramic membrane system is cross-flow circulating filtration, which avoids the continuous deposition of solid particles and other impurities in the sewage on the membrane surface. Concentrated liquid with mass fraction of 1%-2% is returned to the preconditioning or concentrate collection tank. Long-term operation will inevitably lead to some pollutants adsorbed on the membrane surface. When the membrane is polluted, the flux can be restored by cleaning. It is mainly divided into three parts: alkali washing, acid washing and rinsing. The acid and alkali used for cleaning are only circulated inside the ceramic membrane system and will not affect the pipeline equipment outside the system.

Application of Ceramic Membrane

Secondary brine filtration, alkali desalination filtration, decarbonization liquid filtration, dicyandiamide liquid fine filtration, nitric acid, sulfuric acid filtration, terminal solution fine filtration, purification, raw material liquid fine filtration (acid, alkali, alcohol, ketone water, etc.). Filtration and clarification of pharmaceutical and biochemical liquids, decolorization and filtration of activated carbon, filtration of catalysts (palladium, carbon, nickel, etc.) and steam filtration. All kinds of domestic water, process water treatment, industrial wastewater purification (coking water, turbid water, etc.) are suitable for the treatment of oily wastewater in production and industry, industrial water treatment in water treatment industry, purification of industrial circulating cooling water, purification of high purity process water, treatment of production water, ultrafiltration, reverse osmosis, electrodialysis, pre-filtration before ion exchange resin, reclaimed water reuse treatment, equipment freezing. The filtration of cooling circulating water, filtration and purification of industrial wastewater, and precise filtration of river water, well water and lake water. Clarification, concentration and sterilization of alcoholic drinks, juices and beverages, clarification, concentration and sterilization of various food condiments.
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