High-pressure laminated hollow microporous ceramic membrane column

Abstract

The invention discloses a high-pressure laminated hollow microporous ceramic membrane column comprising a column shell and a high-pressure membrane column; the high-pressure membrane column is formedby laminating a plurality of inorganic ceramic plates; the inorganic ceramic plates are formed by splicing, sintering or bonding two same concave-convex inorganic ceramic membranes; the inner surfacesof cavities of the ceramic plates are purified water surfaces, and the outer surfaces of the ceramic plates are raw water surfaces; and only purified water flows in a cavity formed by the two purified water surfaces, but raw water does not flow in the cavity. The ceramic plates of the high-pressure laminated hollow microporous ceramic membrane column can be used in an environment of high pressureless than or equal to 2 MPa; compared with an existing 0.04 MPa ceramic plate filtering and permeating technology, the high-pressure laminated hollow microporous ceramic membrane column has the advantages that the water production efficiency is increased by 30 times or above, the water production cost is reduced by 30 times, the high-pressure laminated hollow microporous ceramic membrane column has the same service life reaching up to 10 years and is small in floor area, low in water production and management costs and easy to wash so as to be a substitute product of an organic membrane in the future water treatment industry and be capable of gradually substituting the organic membrane product market monopolized by European and American countries for 20 years.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a high-pressure laminated hollow microporous ceramic membrane column. Background technique [0002] The MF, UF, NF, and RO membranes widely used in water treatment today are all organic membranes. The materials of NF and RO membranes are mainly composite membranes based on polysulfone organic materials. The organic material lining and filter layer of the composite membrane are generally The thickness is generally below 0.4mm, and the thickness of the cortex of the filter layer is only 10-40nm. If the cortex is thick, the high permeability of the membrane cannot be maintained, and the strength of the filter layer is not enough if it is thin. In the process of backwashing and regeneration of the membrane, the cortex of the organic membrane will inevitably be damaged, so it is difficult for the organic membrane column to guarantee a service life of more than 2 years under the conditio...

AI Technical Summary

Problems solved by technology

This process is very good, but when manufacturing ceramic discs, there are a large number of scrapped and sealed failure cases of ceramic diaphragms, resulting in the mixing of raw water and purified water

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