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Neat type porous filler for bio-filter bed and preparation method of porous filler

A biological filter bed and porous filler technology, applied in the field of waste gas purification, can solve the problems of unfavorable microbial growth and adhesion, uneven air distribution, and reduced bed resistance, etc. Sex-enhancing effects

Inactive Publication Date: 2016-01-20
QINGDAO HSJ ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned fillers have problems such as uneven air distribution during use, easy to be compacted, high bed resistance drop, and unfavorable for microbial growth and attachment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation method of the above-mentioned structured porous packing for the biological filter bed specifically comprises the following steps:

[0031] a Selecting one or more mixtures of ceramic fibers, glass fibers, synthetic fibers, activated carbon fibers and natural fibers as raw materials for papermaking. During the papermaking process, porous substances such as activated carbon or silica gel can be added to improve the water absorption of ceramic fiber paper and provide space for microbial growth. During the papermaking process, inorganic substances such as porous silica gel or water glass can also be added. On the one hand, the strength of the ceramic fiber paper is improved, which is beneficial to subsequent processing, and on the other hand, the water absorption of the ceramic fiber paper is improved.

[0032] b After papermaking, select a part and extrude it into fiber paper with corrugated corrugation, and then bond the fiber paper with corrugated corruga...

Embodiment 1

[0039] a Select 100 parts by weight of ceramic fiber as a raw material for papermaking. During the papermaking process, 3 parts by weight of activated carbon and 5 parts by weight of silica gel were added.

[0040] b After paper making, select a part and extrude it into ceramic fiber paper with corrugated corrugation, and then bond the ceramic fiber paper with corrugated corrugation to the flat ceramic fiber paper through aluminum sol to form a layered body. The layered body is then formed by stacking or winding to obtain a honeycomb profile. Specifically, the honeycomb profile can be prepared into a cylindrical shape or a cubic shape.

[0041] c. Heat the honeycomb profile to remove the organic matter, and then make it adhere to porous natural ore powder by impregnation, and then go through hot air or microwave drying, sintering, shape processing and other steps to obtain a regular porous filler. The porosity of the filler is 70-95%, and can be adjusted artificially. The f...

Embodiment 2

[0043] a Select 80 parts of ceramic fiber, 10 parts of glass fiber, 5 parts of synthetic fiber and 5 parts of natural fiber to prepare raw materials for papermaking. During the papermaking process, 3 parts by weight of activated carbon and 5 parts by weight of silica gel were added.

[0044] b After paper making, select a part and extrude it into composite fiber paper with corrugated corrugation, and then bond the composite fiber paper with corrugated corrugation to the flat composite fiber paper by aluminum sol to form a layered body. The layered body is then formed by stacking or winding to obtain a honeycomb profile. Specifically, the honeycomb profile can be prepared into a cylindrical shape or a cubic shape.

[0045] c. Heating the honeycomb profile to remove the organic matter, and then attaching porous natural ore powder to it by rinsing, followed by hot air or microwave drying, sintering, shape processing and other steps to obtain the regular porous filler. The fille...

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Abstract

The invention discloses neat type porous filler for a bio-filter bed. The filler is formed by a whole honeycomb body arranged in the bio-filter bed or is formed by splicing a plurality of single honeycomb bodies. The honeycomb body is formed by a laminated body in a wound or piled mode. The laminated body is formed by bonding fiber paper with wave-shaped corrugation and planar fiber paper. Ceramic fiber paper is formed by a mixture of one or more of ceramic fibers, glass fibers, synthetic fibers, activated carbon fibers and natural fibers through a papermaking process. The neat type porous filler is used for the bio-filter bed and has the advantages of being small in resistance, small in weight, good in water-absorbing quality, even in waste gas distribution, beneficial to growth and adhesion of microorganisms and the like compared with randomly piled filler.

Description

technical field [0001] The invention relates to a structured porous filler used in a biological filter bed and a preparation method of the structured porous filler, belonging to the field of waste gas purification. Background technique [0002] At present, the waste gas generated in the production process of enterprises is sometimes purified by biological filter beds. The fillers used in existing biological filter beds are mostly random fillers, mainly natural ores such as black travertine with good water absorption and water retention. The above-mentioned fillers have problems such as uneven distribution of air flow during use, easy compaction, high bed resistance drop, and unfavorable growth and attachment of microorganisms. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a structured porous packing for a biological filter bed and a preparation method of the structured porous packing. [0004] The techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85
CPCY02A50/20
Inventor 郅立鹏梁鹏刘冰孟庆锐张天贵吕明杰
Owner QINGDAO HSJ ENVIRONMENTAL PROTECTION TECH CO LTD
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