Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Biohaydite filter material and its prepn

A technology of biological ceramsite and filter material, which is applied in the direction of ceramic products, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of insufficient surface roughness, small amount of microbial immobilization, and low immobilization rate, and achieve aeration The effect of small bubble resistance, high hardness, and improved degradation ability

Inactive Publication Date: 2007-01-03
HARBIN INST OF TECH
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the low porosity of the existing ceramsite filter material, especially the low micropore content, insufficient surface roughness, and poor hydrophilicity, the problems of small specific surface area, poor adsorption capacity, small amount of microbial immobilization, and low immobilization rate, The invention provides a biological ceramsite filter material which can replace activated carbon biological filter material and can be used in the preparation process, which is beneficial to environmental protection and ecological balance and its preparation method

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biohaydite filter material and its prepn

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific embodiment 1: The bio-ceramsite filter material of this embodiment is composed of 30-40wt.% shale, 30-45wt.% fly ash, 10-20wt.% sludge, 3-8wt.% pore former and 0.5 ~2wt.% binder is made, in which the chemical composition of shale, fly ash and sludge is shown in Table 1.

[0009]

[0010] In this embodiment, the pore-forming agent is coal powder; the binder is carboxymethyl cellulose.

specific Embodiment approach 2

[0011] Specific embodiment two: this embodiment is different from specific embodiment one in that the bio-ceramsite filter material is composed of 34wt.% shale, 35wt.% fly ash, 15wt.% sludge, and 5wt.% pore former And 1wt.% binder made.

specific Embodiment approach 3

[0012] Specific embodiment three: this embodiment is different from specific embodiment one in that the bio-ceramsite filter material is composed of 30wt.% shale, 40wt.% fly ash, 20wt.% sludge, and 8wt.% pore former And 2wt.% binder made.

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Login to View More

Abstract

The present invention is biohaydite filter material and its preparation process and belongs to the field of water treating engineering technology. The biohaydite filter material is prepared with shale 30-40 wt%, fly ash 30-45 wt%, sludge 10-20 wt%, pore creating agent 3-8 wt% and adhesive 0.5-2 wt%. The preparation process includes the steps of mixing material, forming, stoving, roasting, sintering and modifying. The preparation process has great amount of industrial waste utilized and low power consumption, may have microbes immobilized on its surface for biodegradation to result in raised organic matter degrading capacity, and may have its surface modified chemically for positively charging and hydroxylating favorable to eliminate natural organic matter from raw water.

Description

Technical field [0001] The invention belongs to the field of water treatment engineering, and relates to a carrier for drinking water filtration technology, biological pretreatment of raw water, and advanced treatment of sewage. Background technique [0002] At present, most commonly used particle carriers in biological treatment are activated carbon, zeolite and ceramsite. The problems of these biological carriers are: (1) Activated carbon: Although it has a huge specific surface area and strong adsorption capacity, activated carbon has low strength, short life span, unsuitable for washing, and high processing costs. (2) Zeolite: Due to the large pore size, the specific surface area is small and the adsorption capacity is poor. (3) The currently commonly used ceramsite also has many defects: low porosity, especially low content of micropores, insufficient surface roughness, and poor hydrophilicity, resulting in too small specific surface area of ​​ceramsite and poor adsorption p...

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
IPC IPC(8): C04B35/16C04B38/00C02F3/10
CPCY02W10/10
Inventor 冯奇马放邱珊沃原
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com