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Biological oxidation filter material, filter material preparation and application of the same in odor treatment

A technology of biological oxidation and filter material, applied in chemical instruments and methods, separation methods, air quality improvement, etc. Guaranteed mass reproduction, long service life and quick effect

Active Publication Date: 2008-12-10
BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, biological packing beds are commonly used, and the filter materials used are not highly targeted for odor control, and the control effect is slow, which affects the effect of odor control.

Method used

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  • Biological oxidation filter material, filter material preparation and application of the same in odor treatment
  • Biological oxidation filter material, filter material preparation and application of the same in odor treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Implementation example 1, the preparation of bio-oxidation filter material: 1, 70% of cow dung, 5% of chicken manure, 6% of straw, 1% of cornmeal, 1% of rice straw and 12% of soil are mixed and crushed to below 5 cm; 2, crushed The final raw materials are mixed evenly, and the humidity is adjusted at about 50%; 3. Primary fermentation: The fermentation cycle is about 40 days. At this stage, when the temperature exceeds 70°C, turn over every 3 days or so to increase the oxygen demand. According to the fermentation situation, the water content is controlled at more than 50% by spraying water; 4. Secondary fermentation: the fermentation period is about 30 days, and the reaction at this stage is relatively stable, and the oxygen consumption is small. For fermentation, use water spray to control the water content above 50%; 5. Finished product treatment: After the fermentation is over, sieve the stacked materials below 0.5mm, and take the undersieve; 6. Sludge mixing: mix wit...

Embodiment 1

[0014] The application of the biological oxidation filter material of embodiment 1 gained in odor control:

[0015] The application of biological oxidation filter material in odor control is to fix the biological oxidation filter material through a spherical bracket and put it into the biological oxidation trickling filter device. When the odor passes through the biological oxidation filter ball, the components in the odor will be biologically filtered. The microorganisms in the feed are captured and oxidized and decomposed for utilization.

[0016] Taking the example of waste gas treatment in the sludge dehydration workshop of a sewage treatment plant to illustrate, the item monitored this time is the main component of the odor, H 2 S and NH 3 And the detection of volatile organic compounds VOC before and after the filter material is monitored at the same time. The test results five days after the test are shown in Table 2:

[0017] Table 2

[0018]

[0019] It can be ...

Embodiment 3

[0024] Implementation example 3, the preparation of biological oxidation filter material: 1, 50% of cow dung, 10% of chicken manure, 10% of straw, 3% of cornmeal, 4% of straw and 15% of soil are mixed and crushed to below 5 cm; 2, crushed The final raw materials are mixed evenly, and the humidity is adjusted at about 50%; 3. Primary fermentation: The fermentation cycle is about 40 days. At this stage, when the temperature exceeds 70°C, turn over every 3 days or so to increase the oxygen demand. According to the fermentation situation, the water content is controlled at more than 50% by spraying water; 4. Secondary fermentation: the fermentation period is about 30 days, and the reaction at this stage is relatively stable, and the oxygen consumption is small. For fermentation, use water spray to control the water content above 50%; 5. Finished product treatment: After the fermentation is over, sieve the stacked materials below 0.5mm, and take the undersieve; 6. Sludge mixing: mix...

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Abstract

The invention discloses a biological oxidized filter material, a method for preparing the biological oxidized filter material and an application thereof to odor treatment. The biological oxidized filter material comprises the raw materials in weight percentage: 50 to 70 percent of dairy manure, 5 to10 percent of poultry dung, 6 to 10 percent of corn straw, 1 to 3 percent of corn flour, 1 to 4 percent of straw, 12 to 15 percent of soil and 5 to 8 percent of mud. The filter material is characterized by fast desired effect, extensive and secure odor treatment, long service life, etc.

Description

Technical field: [0001] The invention relates to the field of odor control with biological materials, in particular to a biological oxidation filter material, a preparation method of the filter material and its application in odor control. Background technique: [0002] At present, there are many methods for controlling odor, among which biological treatment technology is the most vital new technology. It is widely studied and used at home and abroad, and it develops rapidly. Corresponding biological oxidation treatment equipment and processes are also emerging, and the biological filler in this type of equipment plays a decisive role in the effect of odor control. The types and shapes of various fillers also vary. However, biological packing beds are commonly used, and the filter materials used are not highly targeted for odor control, and the control effect is slow, which affects the effect of odor control. Invention content: [0003] In order to overcome the deficien...

Claims

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Application Information

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IPC IPC(8): B01D53/85
CPCY02A50/20
Inventor 陈雷
Owner BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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