Supercharge Your Innovation With Domain-Expert AI Agents!

Stephanoporate grain slag filtering material and method for preparing the same

A technology of water slag and filter material, which is applied in the field of porous water slag filter material and its production, can solve the problems of small porosity, large water flow resistance, and easy breakage, and overcome the disadvantages of microbial attachment and growth, small porosity, and production low cost effect

Inactive Publication Date: 2009-01-28
UNIV OF JINAN
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the filter material of biofilter used for water treatment is mainly ceramsite filter material, and ceramsite filter material used in biological aerated filter has large water flow resistance, small porosity, easy to block, poor strength, easy to break, not Defects such as resistance to water erosion, poor water treatment effect

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

[0019] Take 25kg of water slag and dry it in an oven at 105°C for 24 hours, ball-mill it through a 100-mesh sieve, and take it out for use; take 50kg of clay and put it in an oven for 24 hours at 105°C, and ball-mill it through a 100-mesh sieve. Put the sieved slag and clay into the oven again to dry at 105°C for 24 hours, and set aside. After the ball milling, the slag, clay and 25kg of coal gangue are fully mixed and evenly sprinkled with water to form raw meal balls; put the raw meal balls into an oven at 105°C for drying treatment; take out the dried raw meal balls and put them in the box In a resistance furnace, the temperature was raised to 400 °C and kept for 10 min. Quickly move the preheated raw material balls into a programmable electric furnace that has been raised to a predetermined temperature, bake at 1000°C for 40 minutes, take them out, and cool to room temperature to obtain the desired finished product.

Embodiment 2

[0021] Take 40kg of water slag and dry it in an oven at 105°C for 24 hours, ball mill it through a 100-mesh sieve, and take it out for use; take 40kg of clay and put it in an oven for 24 hours at 105°C, and ball-mill it through a 100-mesh sieve. Put the sieved slag and clay into the oven again to dry at 105°C for 24 hours, and set aside. After ball milling, the slag, clay and 20kg of starch are fully stirred evenly, and the water is removed to form raw meal balls; put the raw meal balls into an oven at 105°C for drying treatment; take out the dried raw meal balls, put them in In a box-type resistance furnace, heat up to 500°C and keep warm for 20 minutes. Quickly move the preheated raw material balls into a programmable electric furnace that has been raised to a predetermined temperature, bake at 1100°C for 30 minutes, take them out, and cool to room temperature to obtain the desired finished product.

Embodiment 3

[0023] Take 60kg of water slag and dry it in an oven at 105°C for 24 hours, ball mill it through a 100-mesh sieve, and take it out for use; take 30kg of clay and put it in an oven for 24 hours at 105°C, and ball-mill it through a 100-mesh sieve. Put the sieved slag and clay into the oven again to dry at 105°C for 24 hours, and set aside. After the ball milling, the slag, clay and 10kg of sawdust are fully stirred evenly, and sprinkled with water to form raw meal balls; put the raw meal balls into an oven at 105°C for drying treatment; take out the dried raw meal balls, put them in In a box-type resistance furnace, heat up to 600°C and keep warm for 30 minutes. Quickly move the preheated raw material balls into a programmable electric furnace that has been raised to a predetermined temperature, bake at 1200°C for 20 minutes, take them out, and cool to room temperature to obtain the desired finished product.

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 provides a porous water slag filter material which, according to weight percentage, comprises 25-85% of water slag, 10-50% of clay, and 5-25% of pre-forming agent. The water slag, clay and pore-forming agent which are ball-grinded and dried are taken as the raw material of the filter material, mixed uniformly by a certain proportion and watered so as to form a material ball which is dried and arranged under a certain temperature for a certain time; subsequently, the material ball is baked for a certain time under the given temperature and taken out and cooled till the temperature is the room temperature so as to gain the finished product. The porous water slag filter material prepared by the invention has rough and porous surface, is beneficial for the adhesion growth of micro-organism in biological filter pool, has good adsorption and has extremely good effect when being taken as the filling material of biological aerated filter for disposing the sewage. The porous water slag filter material provided by the invention and the preparation method used for the porous water slag filter material sufficiently use the industrial waste: blast furnace water slag, change the waste into precious matter, reduce the pollution on the environment and the land occupying, and the like, thus achieving the win-win of economical and environmental benefits.

Description

technical field [0001] The invention relates to a biological filter material, in particular to a porous water residue filter material and a manufacturing method thereof. Background technique [0002] Water slag is formed when iron and steel enterprises smelt pig iron by melting non-ferrous components in iron ore, coke, ash in PCI coal, etc., and then discharged from the blast furnace and then quenched and solidified by water. Water slag is the largest amount of waste slag produced in the metallurgical industry, and the amount is about 15% to 20% of steel output. The stacking of waste residues has occupied a large amount of land, seriously polluted groundwater and surface water, affected the environment, and endangered people's health. The treatment and utilization of these industrial wastes is a problem that must be solved as soon as possible. At present, nearly 67% of my country's water slag has been well utilized, but there are still millions of tons of waste that cannot...

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): B01D39/20C04B38/00C02F3/10
CPCY02W10/10
Inventor 于衍真韩雯雯冯岩赵春辉王占金谭娟
Owner UNIV OF JINAN
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com