Biological deodorization device taking slow release carbon as filling

A slow-release carbon filler and biological deodorization technology, which is applied in the direction of dispersed particle separation, air quality improvement, chemical instruments and methods, etc., to achieve the effect of low operating cost, good treatment effect, and small footprint

Active Publication Date: 2014-12-10
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a biological deodorization device with slow-release carbon as filler, which can reduce the secondary pollution caused by nitrogen-containing spray liquid

Method used

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  • Biological deodorization device taking slow release carbon as filling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Using the above-mentioned deodorizing device, the ammonia-containing odor is transported by the air pump 11 to the air inlet 22 at the bottom of each independent deodorizing unit through the air inlet pipe 18 and the inlet valve 7, and the ammonia-containing odor flows through the perforated plate 6 and the filler The liquid phase in the layer is in contact with the microorganisms, and the purified odor is discharged from the top gas outlet 1. The spray liquid 12 in the spray liquid collection tank 21 is evenly sprayed on the surface of the slow-release carbon filler 4 through the filter 16, the spray pump 9, the spray pipe 19, the spray valve 3 and the spray device 2, and the spray density is 0.25~ 0.75m 3 Spray liquid / m 3 Filler h. The pH value of the spray liquid 12 in the spray liquid collection tank 21 is monitored by the pH probe 17, and maintained at about 7.5 ± 0.2 by the pH controller 8, the peristaltic pump 10, the sodium hydroxide solution 13 and the nitric...

Embodiment 2

[0036] Using the same device as in Example 1, the mass percentage of polylactic acid and starch in the filler of each independent deodorizing unit is greater than 90%, wherein the mass ratio of polylactic acid and starch is 4:6; the spray density is 0.5 ~ 1. 5m 3 Spray liquid / m 3 Filling h; The hydraulic retention time of the spray liquid in the biological trickling filter tower is 1 month. Other conditions are identical with embodiment 1.

Embodiment 3

[0038] Using the same device as in Example 1, the ammonia-containing odor produced only passes through the bottom of the first and second independent deodorizing units, and closes the air inlet of the third independent deodorizing unit; the spray density is 0.5 ~ 1.0 m 3 Spray liquid / m 3 Filler h. Other conditions are identical with embodiment 2.

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PUM

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Abstract

The invention provides a biological deodorization device taking slow release carbon as filling and belongs to the technical field of waste treatment and deodorization. The device comprises a gas intake system, a biological trickling filtration tower deodorization system and a spray liquid pH (potential of hydrogen) regulating system. The biological trickling filtration tower deodorization system consists of a plurality of independent deodorization units, wherein each independent deodorization unit comprises a gas inlet, a perforated plate, slow release carbon filling and a spraying system; the slow release carbon filling comprises polylactic acid, starch and other microelements; each spraying system consists of spray liquid, a filter, a spray pump, a spray pipeline, a spray valve and a spray device; and a pH value of the spray liquid can be regulated by a pH controller, a pH probe, a peristaltic pump and pH regulation liquid. The slow release carbon filling adopted by the device has the characteristics of controllable carbon release rate of the filling, recycling of the filling, no additional microelements, good odor treatment effect and no secondary pollution in comparison to the existing deodorization filling, and the slow release carbon filling can be widely applied to waste gas treatment in compost plants and refuse processing plants.

Description

[0001] technical field [0002] The invention relates to the technical field of waste treatment and deodorization, in particular to a biological deodorization device using slow-release carbon as filler. [0003] Background technique [0004] In industry, the gas produced during the composting of organic matter will pollute the environment, and the gas produced by composting usually has the characteristics of large amount and low concentration. The main components of malodorous gas are: ammonia (NH 3 ), hydrogen sulfide (H 2 S), methylsulfide ((CH 3 ) 3 S), trimethylamine ((CH 3 ) 3 N), dithiomethyl ((CH 3 ) 3 S 2 ), acetaldehyde (CH 3 CHO), styrene (C 6 h 5 C 2 h 3 )Wait. Among them, ammonia is the main component in the odor of aerobic composting. [0005] Compared with traditional physical and chemical methods, biological deodorization has gradually become the main method for purifying odorous substances due to its characteristics of almost no need to add ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84B01D53/52B01D53/58
CPCY02A50/20
Inventor 吴川福郭延王娟郑天龙孙晓红汪群慧
Owner UNIV OF SCI & TECH BEIJING
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