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Method for purifying oil smoke-containing waste gas

A technology for oil fume and exhaust gas, applied in the field of compound microbial strains, can solve the problems of limited removal effect, reduced efficiency and effect of purification equipment, and inability to effectively remove them

Active Publication Date: 2014-07-16
TANTZ ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] All of the above methods, except for a few using chemical methods, are mostly physical methods. They mainly have a certain separation, adsorption and deposition effect on the solid substances and some liquid substances with large particle sizes in the oil fume. They are trapped in these purification devices, and these soot substances themselves have not been decomposed, they will continue to accumulate in the purification device, resulting in a continuous decline in the efficiency and effect of the purification device, so these purification devices have to be cleaned or replaced frequently
At the same time, what is more serious is that these methods have very limited removal effects on those volatile organic compounds (VOCs) in the oil fume that are extremely harmful to air pollution and human health, and most of them are finally discharged into the air because they cannot be effectively removed.

Method used

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  • Method for purifying oil smoke-containing waste gas
  • Method for purifying oil smoke-containing waste gas
  • Method for purifying oil smoke-containing waste gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: plant essential oil to the removal of volatile organic compounds:

[0032] The used plant essential oil of the best embodiment of the present invention comprises terpenoids (Terpenoids, CAS#: 65996-98-7), yucca extract (Yucca Schidigera, CAS#: 223749-05-1) or their The resulting mixture is mixed in certain proportions.

[0033] The removal rate of these plant essential oils to volatile organic compounds was tested, and the results are shown in Table 1.

[0034] Table 1 Plant essential oils to the removal rate of volatile organic compounds

[0035]

[0036] *NH 3 , HCHO, TVOC's decomposition capabilities adopt the industry standard "Indoor Air Cleanliness

[0037] Evaluation method for purification effect of chemical products (QB / T 2671-2006).

[0038] **H 2 The decomposition ability of S was determined by gas chromatography combined with a sulfur chemiluminescence detector (GC-SCD).

[0039] ***Plant essential oil BOD 5 The detection is carried o...

Embodiment 2

[0040] The composition of the composite microbial strains in the treatment container is: 50% of Bacillus subtilis, 30% of Bacillus licheniformis, 10% of Bacillus cereus, 5% of Bacillus megaterium and 5% of Pseudomonas fluorescens according to the proportion of the number of bacteria. The composite microbial strains are loaded on a clay carrier and placed in a treatment container. The total number of initial colonies of composite microbial strains is 5.0X10 9 cfu / gram for a total weight of 500 grams.

[0041] The plant essential oil is atomized in the treatment container: the mass fraction of terpenoids (Terpenoids) active ingredient is 20%, produced by Advance Chemicals Ltd, Canada, and the plant essential oil and tap water are prepared into a 5% dilution by using an automatic liquid mixing device.

[0042] The plant essential oil dilution is continuously sprayed in the processing container space, the flow rate of the spray liquid is 100 ml / min, and the consumed plant essenti...

Embodiment 3

[0048] With embodiment 2, but the plant essential oil that adopts is as follows:

[0049] Yucca Schidigera extract (Yucca Schidigera), 50% active ingredient mass fraction before dilution, produced by Ultra Bio-Logics Inc, Canada, is prepared into a 5% active ingredient mass fraction dilution using an automatic liquid mixing device.

[0050] Sample collection and processing methods are exactly the same as in Example 2. The results are shown in Table 3.

[0051] The lampblack treatment effect of table 3 embodiment 3

[0052]

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Abstract

The invention discloses a method for purifying oil smoke-containing waste gas. The method is implemented by treating the oil smoke-containing waste gas with the combination of plant essential oil and compound microbial strains. The plant essential oil is terpenes, yucca extract or a mixture thereof; and the compound microbial strains include Bacillus subtilis, Bacillus licheniformis, bacillus cereus, Bacillus megaterium and Pseudomonas fluorescens. The plant essential oil can decompose volatile organic compounds (VOCs) in the oil smoke-containing waste gas, and the compound microbial strains grow and reproduce based on solid-state and liquid-state pollutants in the oil smoke-containing waste gas as nutrients and degrade the pollutants into nontoxic and odorless carbon dioxide (CO2) and water (H2O) which are discharged, so as to achieve the purpose of purifying the oil smoke-containing waste gas. The method can well remove and degrade gaseous VOCs and liquid-state / solid-state organic substances in different types of waste gases, and has broad application prospects in the air purification field.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a method for purifying oil fume waste gas by simultaneously utilizing plant extracts for decomposing volatile organic wastes and composite microbial strains for degrading solid and liquid organic wastes. Background technique [0002] Kitchen fume, vehicle exhaust, domestic garbage, industrial and agricultural production, solid waste and sewage treatment will all generate and release waste gas containing a variety of harmful components, causing serious air pollution and bringing huge harm to public health. harm. At the same time, the data show that the economic losses caused by air pollution are also very huge. The annual environmental and health losses caused by air pollution in my country account for 7% of the entire GDP. Take the exhaust gas from various restaurants and kitchens as an example. It contains a variety of compounds mixed in three phases of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/85B01D53/44
CPCY02A50/20
Inventor 张保安刘宏
Owner TANTZ ENVIRONMENTAL TECH
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