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Prep. of vegetable fiber biological filler

A bio-filler, plant fiber technology, applied in separation methods, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of slow drying speed, low removal efficiency, long time consumption, etc.

Inactive Publication Date: 2004-10-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the peat-based filler is easy to clog during long-term operation, and the pressure drop increases, which reduces the removal efficiency.
JP494733 discloses a net peat filler shaping technology, adding one or several organic or inorganic additives to the peat, which better solves the problems of easy plugging and large pressure drop of the filler
However, due to its high temperature during the drying process, it is easy to cause uneven heating, and the surface of the particles is easy to carbonize, which affects the micro-ecological environment for microbial growth, and the biomass per unit area decreases, thereby reducing its water holding capacity, thereby reducing The deodorization efficiency is improved; if the normal temperature or low temperature drying is used, the drying speed is slow, the time is long, and the production efficiency is low

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
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0011] This example makes a general comparison of the parameters of the fillers prepared under different drying methods. Wherein natural drying refers to drying the filler at room temperature.

[0012] drying method

example 2

[0014] The durable components in the filler are mixed with vegetable fibers according to the ratio in Table 2, granulated by extrusion granulation, and dried in vacuum. The comparison results of pressure resistance, water holding capacity, bulk density and inoculation effect of various fillers obtained are listed in the table below. Among them: the pressure resistance means that the filler is evenly placed on the plane under the corresponding moisture content and then a certain pressure is applied until the particles are broken. The pressure data measured at this time is the pressure resistance; in the inoculation effect, the + sign means The effect is good or bad, the more + signs, the better the effect.

[0015] Example

example 3

[0017] The molded filler made by the present invention is filled into the deodorization tower, and after normal acclimatization with desulfurization bacteria, the hydrogen sulfide removal experiment is carried out. The parameters are described below:

[0018] Packing volume: 1.011×10 -3 m 3

[0019] Processing gas volume: 0.6m 3 / h

[0020] Dwell time: 6 seconds

[0021] Airspeed: 593h -1

[0022] After feeding hydrogen sulfide gas for 5 days, the removal rate of hydrogen sulfide reached 100% at a concentration of 50 ppm.

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PUM

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Abstract

The present invention belongs to the field of biological treatment of water gas. Organic plant fiber and durable component are soaked fully with water, stirred, molded to form, and dried in 10-1500 Pa pressure and -40 to 60 deg.c temperature to obtain biological stuffing. The biological stuffing has good microecological environment suitable for microbes to grow, great amount of biomass per unit area, proper water maintaining amount and other advantages. The method of the present invention has high production efficiency, and the prepared biological stuffing has high deodorizing efficiency and long service life and may be used in purifying waste gas containing various effluvial components.

Description

technical field [0001] The invention relates to a preparation method of plant filler, especially for wet biological deodorization of wet biological deodorization devices and facilities that produce malodorous substances in oil refinery sewage treatment plants, chemical plant sewage treatment plants, urban sewage treatment plants, animal husbandry farms, etc. A preparation method of plant fiber filler. The invention belongs to the technical field of waste gas biological treatment. Background technique [0002] Biological deodorization is a waste gas purification method developed in the early 1980s. It has the advantages of high purification efficiency, mild operating conditions, and low operating costs, and has been widely used, especially for the purification and treatment of low-concentration malodorous waste gas. In the biological deodorization method, the filler loaded with microorganisms is the key to this technology. JP63277467, JP810560 etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/00C02F3/10
CPCY02W10/10
Inventor 郭兵兵刘丽王玉亭曾向东
Owner CHINA PETROLEUM & CHEM CORP
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