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Method for managing volatile organic waste gas

A volatile organic and volatile technology, applied in separation methods, chemical instruments and methods, air quality improvement, etc., can solve the problems of microorganisms not easy to hang film, low processing efficiency, large resistance, etc., and achieve good load fixing effect and smooth operation Low cost and long service life

Active Publication Date: 2013-04-24
AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the biological method mainly uses soil, wood chips, plastic balls, volcanic rocks, etc. as fillers for biological filters. These biological filters have the following defects: 1. The thickness of the filler layer is generally 1000-1500mm thick, and the resistance is large; 2. The filler is hardened, Filler rot leads to increased resistance; 3. Poor water retention, microorganisms are not easy to hang film, resulting in low treatment efficiency

Method used

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  • Method for managing volatile organic waste gas
  • Method for managing volatile organic waste gas
  • Method for managing volatile organic waste gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Filtration device filling production:

[0025] 1. Take the activated sludge produced by the biochemical treatment of sewage in petroleum refineries, that is, the activated sludge in the sludge concentration tank. The activated sludge: starch: urea: potassium dihydrogen phosphate: toluene and xylene is 1000: 100: 5~ 15; 1~5:1~5 (mass ratio) mixing, 1m 3 Add 10 kg of sludge with a moisture content of 90% to 92% to the ceramsite and place it for 3 days. The porous ceramsite can be purchased from Jiangxi Pingxiang Feiyun Ceramics Co., Ltd.;

[0026] 2. Pour the above-mentioned loaded porous ceramsite into the concrete pool, dilute the cultivated activated sludge with water to a moisture content of 99.6% to 99.9%, spray it on the loaded ceramsite and mix evenly. Place it at a temperature of 20-35 for 7 days;

[0027] 3. Make the second-level and third-level packing according to the production method of the first-level packing. The treatment of the second-stage activated ...

Embodiment 2

[0032] Spraying workshop's

[0033]

[0034] Executive standard

[0035] Exhaust gas emission implements the secondary standard in Table 2 of "Comprehensive Emission of Air Pollutants" (GB16297-1996)

[0036] Pollutants Toluene Xylene Emission concentration limit (mg / m 3 ) 40 70 Emission rate limit (kg / h) 3.1 1.0

[0037] Monitoring results

[0038] The exhaust gas monitoring results and analysis are shown in the table below

[0039] Exhaust gas monitoring result table

[0040] Exhaust gas inlet 1# monitoring concentration result unit: mg / m 3

[0041]

[0042] Exhaust gas inlet 2# monitoring concentration result unit: mg / m 3

[0043]

[0044]

[0045] Exhaust gas outlet 1# monitoring concentration results Unit: mg / m 3

[0046]

[0047] Exhaust gas outlet 2# monitoring concentration results Unit: mg / m3

[0048]

[0049] Exhaust gas outlet monitoring rate results

[0050] Unit: kg / h

[0051]

[0052] The monitoring...

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Abstract

The invention discloses a method for managing volatile organic waste gas. The volatile organic waste gas is processed by at least one three-level filter treatment; filtering packing adopted in each level of the three-level filter treatment is composed of porous ceramsite and active sludge which is loaded and adsorbed on the porous ceramsite and respectively processed by each level. The active sludge adopted in the method is produced in a wastewater biochemical treatment process from an oil refining plant, and a filter device is divided into three levels of filter treatment after being processed by a special proportion of the method, and the efficiency of removing waste gas is high and strong.

Description

technical field [0001] The invention belongs to the field of environmental protection; it relates to a treatment method for organic volatile waste gas (VOCs), which can be used for low-concentration (especially <500ppm) volatiles in painting (painting and spraying), petrochemical, rubber, leather and other industries. Treatment of organic waste gas. Background technique [0002] The organic volatile gases discharged into the atmosphere in my country are close to 20 million tons every year. The main industries that produce waste gas are petrochemical, paint and surface spraying, leather and other more than 10 industries. The main components are benzene, toluene, xylene, esters, alcohols, etc. VOCs, aldehydes, ethers, aliphatic hydrocarbons and other organic volatile waste gases, most of the organic volatiles are directly discharged into the atmosphere without treatment. In addition to ozone pollution, VOCs form secondary organic aerosols (25-%35), VOCs It has become the dec...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/84B01D53/72
CPCY02A50/20
Inventor 黄贵虎周波平
Owner AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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