Composite filler for biological filtering bed

A technology of composite packing and biological filter bed, which is applied in chemical/physical process, chemical/physical/physical chemical process, dispersed particle separation, etc. It can solve the problems of unstable natural packing structure and poor pollutant removal effect, and achieve saving Facility investment costs and labor costs, beneficial to growth and reproduction, and the effect of reducing compaction

Active Publication Date: 2007-03-28
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of unstable structure, poor pollutant removal effect and frequent replacement of various natural fillers used in biological filter beds in the prior art, the present invention provides a certain strength and rigidity, stable structure, and pollutant removal Composite filler with good effect and no need for frequent replacement

Method used

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  • Composite filler for biological filtering bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Adhesive brown fiber-peat / perlite spherical composite filler

[0029] 1. Filling production

[0030] (1) Lay the brown fiber silk criss-cross first, spray natural rubber latex to bond it into a support net with a thickness of 10mm, and control the density of the brown fiber silk net to 80-160kg / m 3 . Then the palm fiber net was punched and shaped for 8 minutes at 80-140° C. to make a brown fiber hemispherical surface with an outer diameter of 50 mm. At this time, the thickness of the spherical shell was reduced to 6-8 mm.

[0031] (2) get above-mentioned brown fiber web and the leftover material after utilizing step (1) processing in addition to be processed into the brown fiber block B of 10mm square.

[0032] (3) Take peat and perlite powder with a volume ratio of 2:3, and add self-made BFP-A01 type bacterial agent according to the total volume ratio of 0.15%, which contains efficient degradation of trimethylamine, organic sulfur and other odor polluta...

example 2

[0041] Example 2: Adhesive vinylon and polyamide silk - granular organic fertilizer - expanded vermiculite - bamboo charcoal composite filler

[0042] 1. Filling production

[0043] (1) Get ready commercial organic compound fertilizer A, namely commercially available φ3mm columnar granule organic fertilizer produced by Huanfa Organic Fertilizer Company in Zhengding County, Hebei Province, which is produced by fermenting chicken manure.

[0044] (2) Prepare expanded vermiculite B with a particle size of 3-6 mm and crushed bamboo charcoal C with a particle size of 3-10 mm.

[0045] (3) Mix the above-mentioned three raw materials of A, B and C, each with one-third equal volume, and dry naturally for later use.

[0046] (4) Cut the polyamide yarn of the polyvinylon yarn with a diameter of 0.5 mm into a length of 20 to 100 cm for later use.

[0047] (5) Take the above-mentioned ratio of 68.1% vinylon and 31.9% polyamide and mix them evenly, lay up a support net with a thickness o...

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Abstract

The present invention provides a composite filler for biological filter bed. The described composite filler is mainly formed from non-metalic wire material, organic matter and porous light inorganic material. The described non-metalic wire material is used as supporting material. Said composite filler composition includes (by wt%) 10-60% of non-metalic wire material, 10-60% of organic matter and 10-60% of porous light inorganic material.

Description

(1) Technical field [0001] The invention relates to a composite filler used for a biological filter bed, belonging to the field of waste gas purification. (2) Background technology [0002] The biological purification process of exhaust gas is essentially that the microorganisms attached to the biological filler medium use the pollutants in the exhaust gas as carbon sources and energy sources under suitable environmental conditions to maintain their life activities and decompose them into CO 2 、H 2 O and SO 4 2- The process of harmless inorganic substances is a green technology; at the same time, because of its simple process, easy operation and low cost, it is especially suitable for the treatment of low-concentration and large-volume waste gas, and it has been paid more and more attention by people. [0003] According to the principle of waste gas biological treatment, the ideal biological filter bed packing carrier should have the following characteristics: large conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85B01J19/30
CPCY02A50/20
Inventor 陈建孟王家德王毓仁朱润晔
Owner ZHEJIANG UNIV OF TECH
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