Hollow flat plate whole ceramic filtering membrane element

Abstract

The invention relates to a hollow flat plate whole ceramic filtering membrane element. The prepared filtering membrane element has the sterilization and disinfection effects through the addition of nanometer silver, so that the filtering effect of the filtering membrane element is higher. Through the mud milling in a vacuum pugmill, the influence of gravity on the materials can be eliminated, so that the materials can be sufficiently and uniformly mixed; therefore the materials in each position of the mud materials can favorably become uniform; a prepared flat plate ceramic membrane support body has high quality; by using aluminum oxide as a major raw materials for preparing the flat plate ceramic membrane support body through sintering, the performance stability of the ceramic membrane support body can be improved; the support body is enabled to have sufficient intensity on the premise of light weight.

Description

technical field [0001] The invention relates to a ceramic element, in particular to a hollow flat all-ceramic filter membrane element and a preparation process. Background technique [0002] At present, in the sewage filtration industry, most of the membranes used are organic membranes, but organic membranes are usually poor in oxidation resistance, acid and alkali resistance, high temperature resistance and chemical stability, which limits the use of organic membranes. Compared with organic membranes, inorganic flat ceramic membranes that have recently appeared as filter elements have the advantages of acid and alkali corrosion resistance, high temperature resistance, organic solvent resistance, and high mechanical strength, thus greatly increasing the scope of use, and inorganic flat ceramic membranes also have Easy to wash, not easy to be polluted, etc., thus greatly increasing the service life. However, because the existing flat ceramic membrane plug itself and the adhe...

AI Technical Summary

Problems solved by technology

However, because the existing flat ceramic membrane plug itself and the adhesive between the plug and the inorganic ceramic membrane are all organic materials, such as ABS, PPS, PPR, etc. are commonly used for ceramic membrane plugs, and epoxy resin is commonly used for adhesive bonding. Agents, polyurethane adhesives, acrylic resin adhesives or their composite and modified adhesives, these plugs and adhesives containing organic materials, in high temperature, especially containing medium strong acid and alkali and corrosive organic When used in solvents such as benzene, xylene, and water containing phenol, the range of use will be limited and the service life will be shortened because the organic material in the ceramic membrane element is easily corroded or dissolved or swelled