Conductive ceramsite filler for bio-trickling filter and preparation method of conductive ceramsite filler

A biological trickling filter tower and ceramsite technology, applied in the field of exhaust gas purification, can solve the problems of poor adsorption performance, insufficient specific surface area, and insufficient porosity, and achieve the effects of excellent electrical conductivity and mechanical strength, low price, and low production cost

Pending Publication Date: 2021-08-17
YANCHENG INST OF TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of insufficient specific surface area, porosity and poor adsorption performance of conductive fillers used in biological trickling filter towers in the prior art, and provide a conductive ceramsite filler used in biological trickling filter towers, which has a high specific surface area. , high porosity, excellent electrical conductivity and mechanical strength, and easy to obtain raw materials and low cost

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

[0023] A conductive ceramsite filler for a biological trickling filter, comprising the following components by weight: 40 parts of activated carbon powder with a particle size of 20-40 μm, 20 parts of iron oxide powder with a particle size of 30-80 μm (the weight ratio is 1 : 1 ferrous oxide and ferric oxide powder), 40 parts of kaolin.

[0024] The preparation method of conductive ceramsite filler for biological trickling filter comprises the following steps:

[0025] (1) Active carbon powder, iron oxide powder and clay are mixed uniformly to obtain mud;

[0026] (2) After the mud is left to stand for 24 hours, put it into a vacuum mud mixer for disposal (rotating speed 30r / min, vacuum degree of 720mmHg and above, running time 12h), and obtain the disposed mud;

[0027] (3) after the mud material after disposal is left standstill for 18h, put into granulator to granulate, obtain the mud granule of diameter 8mm;

[0028] (4) Air-dry the mud particles for 2 hours to finalize ...

Embodiment 2

[0032] A conductive ceramsite filler for a biological trickling filter, comprising the following components by weight: 50 parts of activated carbon powder with a particle diameter of 20-40 μm, 20 parts of iron oxide powder (ferric oxide) with a particle diameter of 30-80 μm powder), 30 parts clay.

[0033] The preparation method of conductive ceramsite filler for biological trickling filter comprises the following steps:

[0034] (1) Active carbon powder, iron oxide powder and clay are mixed uniformly to obtain mud;

[0035] (2) After the mud is left to stand for 24 hours, put it into a vacuum mud mixer for disposal (rotating speed 30r / min, vacuum degree of 720mmHg and above, running time 12h), and obtain the disposed mud;

[0036] (3) after the mud material after disposal is left standstill for 22h, put into granulator and granulate, obtain the mud granule of diameter 12mm;

[0037] (4) Air-dry the mud particles for 2 hours to finalize the shape, then put them into a dryer ...

Embodiment 3

[0041] A conductive ceramsite filler for a biological trickling filter, comprising the following components by weight: 40 parts of activated carbon powder with a particle diameter of 20-40 μm, 25 parts of iron oxide powder with a particle diameter of 30-80 μm (the weight ratio is 1 : 2:1 ferrous oxide, ferric oxide and ferric oxide powder), 35 parts clay.

[0042] The preparation method of conductive ceramsite filler for biological trickling filter comprises the following steps:

[0043] (1) Active carbon powder, iron oxide powder and clay are mixed uniformly to obtain mud;

[0044] (2) After the mud is left to stand for 24 hours, put it into a vacuum mud mixer for disposal (rotating speed 30r / min, vacuum degree of 720mmHg and above, running time 12h), and obtain the disposed mud;

[0045] (3) after the mud material after disposal is left standstill for 18h, put into granulator to granulate, obtain the mud granule of diameter 10mm;

[0046] (4) Air-dry the mud particles for ...

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 diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a conductive ceramsite filler for a bio-trickling filter. The conductive ceramsite filler comprises the following components in parts by weight: 40-50 parts of activated carbon powder, 20-30 parts of iron oxide powder and 30-50 parts of clay. The preparation method comprises the following steps: uniformly mixing the activated carbon powder, the iron oxide powder and the clay, standing for 20-30 hours, putting into a vacuum pug mill for treatment, standing the treated pug for 18-24 hours, granulating to obtain pug granules with the diameter of 8-12 mm, naturally air-drying and shaping the pug granules, drying again, and finally firing at high temperature to obtain the conductive ceramsite filler for the bio-trickling filter. The filler is low in raw material price, environmentally friendly and low in production cost, the prepared filler is high in specific surface area and porosity and has excellent conductivity and mechanical strength, and the problems that in the prior art, a conductive filler for a bio-trickling filter is insufficient in specific surface area and porosity and poor in adsorption performance are solved.

Description

technical field [0001] The invention relates to a conductive ceramsite filler for a biological trickling filter tower and a preparation method thereof, belonging to the technical field of waste gas purification. Background technique [0002] The biological trickling filter tower, also known as the fixed-film biological scrubber, can be used not only for the removal of volatile organic compounds (VOCs), but also for the removal of non-VOCs, such as hydrogen sulfide, ammonia, methyl mercaptan and other malodorous gases, plus Its low investment cost and high purification efficiency have attracted more and more people's attention. [0003] As the carrier of microbial attachment growth and material transfer, biological filler plays a vital role in the biological trickling filter tower. First of all, the biological filler needs to be non-toxic and not inhibit the growth of microorganisms. Secondly, the specific surface area and porosity should be large to facilitate the attachmen...

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): C04B35/528B01D53/85C04B35/622C04B38/08
CPCC04B35/528B01D53/85C04B35/622C04B38/08C04B2235/3272C04B2235/96C04B2235/349C04B38/0074Y02A50/20
Inventor 杨百忍王嘉杰吴梦蕾张浩耿安琪桂宁远于广成赵晨卢畅
Owner YANCHENG INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap