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Biological filler and preparing method and apparatus constructed thereof and use

A bio-filler and bio-film technology, which is applied in the treatment of large-volume waste gas and high-concentration fields, can solve the problems of restricting the thickness of the packing layer, large system resistance, and packing blockage, so as to save the film-hanging time, save the floor area, and improve The effect of processing power

Inactive Publication Date: 2004-06-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the matrix concentration is high, due to the excessive accumulation of particulate matter in the exhaust gas in the filter bed and the rapid growth of biomass, plugging of the filler is often prone to occur, which increases the system resistance and causes problems such as gas short circuit, which affects the mass transfer effect. The thickness of the filler layer is restricted, generally only about 30-1000mm
At the same time, due to the high resistance of the system and the limitation of the thickness of the packing layer, it is usually only possible to increase the cross-sectional area of ​​the filter bed to expand the treatment capacity of the exhaust gas, which results in a large footprint of the entire treatment device.

Method used

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  • Biological filler and preparing method and apparatus constructed thereof and use
  • Biological filler and preparing method and apparatus constructed thereof and use
  • Biological filler and preparing method and apparatus constructed thereof and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The biological filler of the invention is used to immobilize nitrifying bacteria for treating ammonia-containing waste gas.

[0038] Immobilized cell gel composition:

[0039] Polyvinyl alcohol 6.5%

[0040] Sodium Alginate 1%

[0041] Nitrifying bacteria wet cells 50%

[0042] The filler frame is made of stainless steel plate and stainless steel wire. Its appearance is a cylinder with a height of 85mm and a diameter of 140mm. The mesh fabric is nylon window screen with an aperture of 0.3×0.2mm. The distance between every two screens is 8-10mm.

[0043] The packing frame of the fixed window screen is leached several times in the uniformly mixed bacteria-containing hydrosol, so that the glue is evenly covered on the window screen, and then in 1% CaCl 2 Soak in saturated boric acid solution for 2h, in 8%KH 2 PO4 Soak in the solution for 40 minutes, take it out and rinse with water for later use.

[0044] What this embodiment adopts is a biological filtration tower wi...

Embodiment 2

[0048] Immobilized cell gel composition:

[0049] Polyvinyl alcohol 7.5%

[0050] Sodium Alginate 1%

[0051] Nitrifying bacteria wet cells 10%

[0052] All the other conditions are with embodiment 1. Table 2 shows the effect of using the biological filler of the present invention to immobilize nitrifying bacteria to treat ammonia-containing waste gas.

[0053] biochemical residence time

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Abstract

The present invention relates to a biological filter, its preparation method, equipment formed from it and its application. Said invention comprises peripheral structure frame, carrier which is formed from biomembrane leaf frame and is placed in the above-mentioned peripheral structure frame and high-molecular material cross-linked polymer biomembrane on which the effective mycetocyte is inlaid, and every biomembrane leaf frame and bottom plane of the peripheral structure frame are formed into 10 deg-90 deg. angle. Said invention can be used for treating industrial waste gas containing malodor and organic pollutant components so as to attain the goal of purifying gas.

Description

[0001] Field [0002] The present invention relates to the field of biological filler and its preparation method, its device and application, in particular to a biological filler, its preparation method, its device and its application for treating gases with malodorous and organic pollutant components. Background technique [0003] In the production of industry and agriculture, many harmful gases enter the atmosphere, such as industrial waste gas containing malodorous substances and volatile organic compounds harmful to human body, etc. These substances are very harmful to human health and the ecological environment. [0004] Studies in recent years have shown that biological filtration technology is one of the effective methods to deal with harmful gases. The method is to use a filter or reaction tower equipped with a biological packing layer. When the wetted exhaust gas passes through the packing layer with biofilm, the pollutant components are absorbed by microorganisms a...

Claims

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Application Information

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IPC IPC(8): B01D53/85C02F3/10
CPCY02A50/20Y02W10/10
Inventor 高明华叶晶菁薛金城赵璞梁云柴本忠侯秀华
Owner CHINA PETROLEUM & CHEM CORP
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