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

Light earthen skeleton filter medium

A skeleton and filter material technology, applied in the field of environmental protection, can solve the problems of high hardness and breakage rate, long biological film hanging time, poor acid-soluble alkali solubility, etc. Effect

Inactive Publication Date: 2007-10-10
长春立源水处理技术有限责任公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Provide a light-weight pottery skeleton filter material, which solves the problems of poor adsorption performance, short filtration process, long-term soaking of the filter material, which is harmful to the human body, low porosity, small specific surface area, and poor acid-soluble and alkali-soluble properties of the traditional filter material. , high hardness and breakage rate, poor filtration effect when the water volume changes greatly, unstable operation and low service life, etc., and a series of problems such as the long time of biofilm application in sewage treatment

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

[0034] The clay (mainly composed of SiO 2 40-60%, Al 2 o 3 20-48%) to be ground into uniform powders with different particle sizes of 0.3um-2.0mm, then dried at high temperature and weighed according to the proportion of clay for use. The volcanic ash (mainly composed of SiO 2 More than 50%, Al 2 o 3 No more than 25%) with a grinder to grind it into a powder with uniform particle size of 0.3um-2.0mm. Dry it in a low-temperature electric furnace, and then calcinate it at a high temperature in an electric furnace (at a temperature between 900°C and 1200°C) for a certain period of time (not less than 30 minutes).

Embodiment 2

[0036] Grind the clay and volcanic ash into a powder with a uniform particle size of 0.3um-2.0mm, sieve and weigh according to the proportion for later use, then add calcium carbonate powder according to the proportion, add water and mix evenly, and the others are the same as in Example 1.

Embodiment 3

[0038] Add calcium carbonate and diatomaceous earth and pumice powder and sawdust powder by proportioning, other is identical with embodiment 2.

[0039] In the above embodiments, different proportions of clay, pozzolan and different additives can be used to make high-quality finished products with different specific gravity and different physical properties. To meet the filtration index requirements of various gaseous or liquid fluids.

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 light earthen skeleton filter medium used in environment protecting field is prepared with clay 10-90 weight portions and volcanic ash 10-90 weight portions. The preparation process includes grinding clay and volcanic ash into powder of 0.3 micron to 2.0 mm size, mixing while adding water, pelletizing, stoving, and high temperature calcining at 900-1200 deg.c in an electric oven for over 30 min. The light earthen skeleton filter medium has the advantages of great specific surface area, high adsorption performance, high porosity, low acid and alkali solubility, stable chemical and physical stability, simple production process and low production cost.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and is used as a filter material for gaseous or liquid fluids, and is a technical product for removing suspended matter and organic matter in fluids. Background technique [0002] The traditional filter materials currently used in water treatment and filtration processes mainly include filter materials made of quartz sand, anthracite, magnetite and clay plus pore-forming agents and binders, which mainly have the following disadvantages: [0003] The filter material has high density, high quality, small specific surface area, low porosity, and high water flow resistance, which can easily cause filter blockage. Backwashing is difficult, the backwashing rate is low, the filtration process is relatively short, the interception ability is poor, and the washing is easy to break. Silica powder produced during the production process of quartz sand filter material is very harmful to huma...

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 Patents(China)
IPC IPC(8): B01D39/20B01D39/06
Inventor 徐立群朱辉
Owner 长春立源水处理技术有限责任公司