Preparation method of inorganic porous ceramic membrane

An inorganic porous and ceramic membrane technology, which is applied to ceramic products, other household appliances, household appliances, etc., can solve the problems of low oil removal rate of ceramic membranes, and achieve high renewable utilization rate, good reproducibility, acid and alkali resistance Good corrosion performance

Active Publication Date: 2018-02-27
CHANGZHOU JINSHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a method for preparing inorganic porous ceramic membranes, and to solve the defects of low oil removal rate of ceramic membranes prepared in the past

Method used

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  • Preparation method of inorganic porous ceramic membrane
  • Preparation method of inorganic porous ceramic membrane
  • Preparation method of inorganic porous ceramic membrane

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Embodiment Construction

[0034] The present invention will be further described in conjunction with specific embodiment now. These drawings are simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic way, so they only show the components relevant to the present invention.

[0035] A preparation method of an inorganic porous ceramic membrane, comprising the following steps:

[0036] ① Weighing: Weigh the raw materials, pore-forming agent, and sintering aid according to a certain ratio, and mix them; the raw material is diatomite, and the pore-forming agent includes sawdust, graphene and CaCO 3 , the sintering aid is TiO 2 ;

[0037] ② Wet milling: select a ball mill, put the weighed materials, agate beads and distilled water into the ball mill together, the ratio of materials, agate beads and distilled water is 2:1:1, the materials include raw materials, pore-forming agents, sintering aids The agent is fully rotated by the ball mill to make the ma...

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Abstract

The invention relates to a preparation method of an inorganic porous ceramic membrane, comprising the following steps: weighing: weighing raw materials, pore-forming agents, and sintering aids according to a certain ratio, and mixing them; wet grinding and dry grinding; granulation; molding molding; sintering. The prepared ceramics have large flux, high compressive strength, good reproducibility, and uniform porosity of the ceramic membrane; the inorganic ceramic membrane has high temperature resistance, good acid and alkali corrosion resistance, high compressive strength, high renewable utilization rate, No secondary pollution and other characteristics. The removal rates of COD, oil content and suspended solids in water are 82.3%, 85.3% and 89.6% respectively, which can achieve good oil removal effect; the modified ceramic membrane is backwashed and regenerated under the condition of 0.05MPa water washing, and its clear water Flux was recoverable to 94.7%.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a preparation method of an inorganic porous ceramic membrane. Background technique [0002] In the water treatment process, the ceramic membrane has high separation efficiency, stable effect, good chemical stability, acid and alkali resistance, organic solvent resistance, bacteria resistance, high temperature resistance, pollution resistance, high mechanical strength, good membrane regeneration performance, and simple separation process. , low energy consumption, easy operation and maintenance, long membrane life and many other advantages, have been widely used in water treatment applications; [0003] (1) Treatment of oily wastewater: Petroleum, machinery, food and catering industries will produce oily wastewater of different nature and content. The microporous structure inside the ceramic membrane is used to treat oily wastewater to separate oil dro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B38/06
Inventor 赵娟王利平嵇华俊
Owner CHANGZHOU JINSHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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