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Biological deodorization composition for odor removal, method for preparing filler by biological deodorization composition and application of biological deodorization composition

A technology of biological deodorization and deodorizing fillers, which is applied in gas treatment, air quality improvement, chemical instruments and methods, etc., can solve the problems of poor air permeability and easy clogging of biological deodorizing fillers, and achieve excellent water holding capacity and bio-affinity high moisture retention and strong corrosion resistance

Active Publication Date: 2016-08-10
HUNAN HENGKAI ENVIRONMENT TECH INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the defects of poor air permeability and easy clogging of existing biological deodorizing fillers, the invention provides a biological deodorizing composition for removing odor

Method used

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  • Biological deodorization composition for odor removal, method for preparing filler by biological deodorization composition and application of biological deodorization composition
  • Biological deodorization composition for odor removal, method for preparing filler by biological deodorization composition and application of biological deodorization composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 27 parts of decomposed sludge, 63 parts of biochar, 3 parts of cement, 7 parts of blast furnace slag and 67 parts of water were mixed, dried naturally, pressed and molded to make fillers, and the fillers with a particle size of 3 cm were selected to be placed in the experiment. Biological deodorization box, the height of the deodorization box is 1.2m, the inner diameter is 0.3m, the upper part is equipped with a spray device, the lower part is equipped with a water collection device, the effective height of the control filler is 0.8m, and the odor generated by sludge drying is introduced to control the inlet Volume 1.8m 3 / h, the residence time is 30s, the experimental device runs continuously for 20 days, and no nutrients are added during the experiment. Three groups of parallel experiments were set up, the discrete values ​​were removed from the test results, and the average value was taken. The experimental results are shown in Table 1 after determination:

Embodiment 2

[0054] Compared with Example 1, the difference is that the filler used is a mixture of decomposed sludge and biochar with a weight ratio of 1:3. The experimental results are as shown in Table 1:

[0055] Table 1

[0056]

[0057]

[0058] After the above conditions, when the comparative example 1 runs to 14 days, the porosity decreases, the air permeability decreases, and the deodorization ability decreases; when the comparative example 2 runs to 10 days, the filling height is only one-third of the initial height as the spray liquid is gradually lost 1. The deodorization ability is obviously reduced; when the operation of Example 2 reaches 20 days, part of the filler is lost with the spray liquid, the pressure drop of the filler is obviously increased, and the deodorization efficiency is reduced; the deodorization effect of Example 1 is good during the operation period, and the filler is not broken The phenomenon of cracking, the growth of microorganisms is in good cond...

Embodiment 3

[0060] Mix 28 parts of decomposed sludge, 65 parts of biochar, 3 parts of cement, 7 parts of blast furnace slag and 68 parts of water, dry it naturally, press and shape it, and put the filler with a particle size of 3 cm into the experimental biological deodorization Deodorization box, the height of the deodorization box is 1.2m, the inner diameter is 0.3m, the upper part is equipped with a spray device, the lower part is equipped with a water collection device, the effective height of the control filler is 0.8m, and the odor generated by the sludge drying is introduced, and the air intake volume is controlled to be 1.8m. m 3 / h, the residence time is 30s, the experimental device runs continuously for 60 days, and no nutrients are added during the experiment. Three groups of parallel experiments were set up, the discrete values ​​were removed from the test results, and the average value was taken. The experimental results are shown in Table 2 after determination:

[0061] Tab...

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Abstract

The invention discloses a biological deodorization composition for odor removal and further discloses application of the biological deodorization composition as deodorization filler for deodorization of gas or mist containing odor substances. The composition comprises composted sludge, charcoal, cement and blast furnace slag. By synergistic cooperation of the composted sludge and the charcoal which serves as a controlled-release carrier of composted sludge nutritive elements, the composted sludge nutritive elements can be released sustainably and slowly to achieve an engineering application effect of freeness of additional nutritive elements. In addition, the composted sludge and the charcoal are high in microbial affinity and conducive to microbial film colonization, and accordingly efficient adsorption and deodorization can be realized by microorganisms under sustainable feeding of the composted sludge and the charcoal. Furthermore, thorough utilization of the nutritive elements and organic matters in the composted sludge is realized, and environment friendliness and freeness of pollution are realized as well.

Description

technical field [0001] The invention belongs to the field of malodorous gas treatment; in particular, it relates to a biological deodorizing composition for removing odor and its preparation and application as a filler. Background technique [0002] Malodorous gas (odor) mainly comes from urban sewage treatment plants, sludge treatment plants, landfills, livestock and poultry farms, and other industrial production sites. Malodorous gas can cause discomfort to people, such as nausea, headache, loss of appetite, sense of smell, insomnia, and even emotional instability, which is one of the environmental hazards. Therefore, it is necessary to adopt a method with high treatment efficiency and low investment and operating costs to treat it, and discharge it into the atmosphere after reaching the standard. [0003] At present, the treatment methods of malodorous gas mainly include physical methods, chemical methods and biological methods. Among them, the biological deodorization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85B01D53/72B01D53/58B01D53/52
CPCB01D53/52B01D53/58B01D53/72B01D53/85B01D2258/0266Y02A50/20
Inventor 贺治国徐丽李晶罗文连邹先军
Owner HUNAN HENGKAI ENVIRONMENT TECH INVESTMENT CO LTD
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