Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of filter core of composite ultrafiltration tube membrane

A technology of ultrafiltration tubes and ultrafiltration membranes, applied in ultrafiltration, chemical instruments and methods, membrane technology, etc., can solve problems such as poor removal of heavy metal ions, excessive bacterial content in effluent, short service life, etc., and reach the production cycle Short, fast removal, simple process effect

Active Publication Date: 2011-07-13
XIAMEN RUNNER IND CORP
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The weak point of this invention is that one or several kinds of particles of medical stone, activated carbon and activated coal are simply bonded and pressed together. Adsorption, there is a filter layer that absorbs organic matter and becomes a breeding ground for bacteria, which easily leads to excessive bacterial content in the effluent, short service life and bacterial growth, and the removal effect of heavy metal ions in water is not good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Dissolve 0.01g of silver nitrate in 10mL of deionized water at room temperature, dissolve 20g of copper acetate and 20g of zinc acetate in 500mL of deionized water at 70°C, and after completely dissolving, add 100g of diatomite powder with a diameter of 0.1 to 5μm into copper acetate , zinc acetate solution, then add silver nitrate solution, keep the solution temperature at 70°C, stir at a low speed for 4 hours, remove the residual solution, mix the diatomite loaded with metal ions obtained above with 200g deionized water and 0.5g carboxymethyl fiber After the sodium is mixed, stir for 1 hour to prepare a composite slurry; inject the prepared composite slurry into a metal tube with a rotation speed of 10,000 rpm, rotate for 10 minutes, and centrifugally form it to prepare a composite ultrafiltration membrane tube green body; the green body is baked After drying, demould, under hydrogen reduction, microwave sintering, the sintering temperature is 1600 ℃, keep warm for 4 h...

Embodiment 2

[0028] Dissolve 0.1g of silver nitrate in 20mL of deionized water at room temperature, dissolve 10g of copper sulfate and 10g of zinc sulfate in 200mL of deionized water at room temperature, and after completely dissolving, add 500g of natural zeolite powder with a diameter of 0.5-5μm , zinc sulfate solution, then add silver nitrate solution, stir at low speed for 2 hours, remove the residual solution, mix the above-mentioned natural zeolite powder loaded with metal ions with 1000g deionized water and 1.5g polyvinyl alcohol, stir for 1 hour, and prepare into a composite slurry; inject the prepared composite slurry into a metal tube with a rotating speed of 5000rpm, rotate for 15min, and centrifuge to form a composite ultrafiltration membrane tube green body; the green body is demoulded after drying, and reduced in hydrogen Under microwave sintering, the sintering temperature is 1200°C, heat preservation for 2h, and the composite ultrafiltration tube membrane filter element is m...

Embodiment 3

[0030] Dissolve 0.3g of silver nitrate in 20mL of deionized water at room temperature, dissolve 50g of copper chloride and 50g of zinc acetate in 500mL of deionized water at room temperature. In copper chloride, zinc chloride solution, add silver nitrate solution again, after low-speed stirring 3h, remove residual solution, after the medical stone powder of loading metal ion obtained above is mixed with 2000g deionized water and 10g silica sol, stir 2h, Prepare a composite slurry; inject the prepared composite slurry into a metal tube with a rotational speed of 15,000 rpm, rotate for 15 minutes, and centrifuge to form a composite ultrafiltration membrane tube green body; the green body is demoulded after drying, and the Under reduction, microwave sintering, the sintering temperature is 1400°C, heat preservation for 2 hours, and after cooling, a composite ultrafiltration tube membrane filter element is made. Its pore diameter is 100 nm, its porosity is 40%, its diameter is 40 m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of a filter core of a composite ultrafiltration tube membrane, relating to a filter core of a composite ultrafiltration tube membrane. The preparation method comprises the following steps: dissolving a copper compound, a zinc compound and a silver compound with deionized water to prepare a mixed solution, adding a mesoporous material into the mixed solution, controlling the temperature to be 25-100 DEG C, agitating the solution fully, and making the mesoporous material adsorb metal ions fully so as to obtain the mesoporous material loaded with metal ions; mixing the dried mesoporous material loaded with metal ions with a carrier and a dispersant, agitating the solution to prepare a composite slurry material; filling the composite slurry material into a metal tube, rotatably centrifuging the metal tube and molding to prepare a blank of the composite ultrafiltration membrane tube; and drying the blank of the composite ultrafiltration membrane tube and then demolding, sintering the blank of the composite ultrafiltration membrane tube through microwave under a reductive gas, and cooling so as to prepare the filter core of the composite ultrafiltration tube membrane. The pore diameter of the obtained filter core of the composite ultrafiltration tube membrane is 50-1000 nm; the porosity is 30%-55%; the diameter is 20-200 mm; the length is 100-1000 mm; and the wall thickness is 3-15 mm.

Description

technical field [0001] The invention relates to a composite ultrafiltration tube membrane filter element, in particular to a preparation method of the composite ultrafiltration tube membrane filter element used for water purification materials. Background technique [0002] With the development of society and the improvement of living standards, people's requirements for quality of life are getting higher and higher, and the impact of clean and safe drinking water on people's quality of life cannot be ignored. Water is the main carrier for the transmission of various germs, and 80% of human diseases are related to water pollution. Access to clean and safe drinking water has become a hot topic worldwide. On the other hand, water pollution is becoming more and more serious. Surface water such as rivers and lakes and groundwater in some areas are polluted to varying degrees. The problem of water shortage has attracted widespread attention. [0003] The main pollutants in drin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/04B01D71/02B01D67/00B01D61/18
Inventor 余水李明仁
Owner XIAMEN RUNNER IND CORP