Filter tower packing for processing VOCs gas and odorous gases

A malodorous gas and filter tower technology, applied in the field of environmental governance, can solve the problems of inability to provide nutrients for microorganisms, inability to adapt to different gas sources, and high pressure drop of natural packing, and achieve the goal of many internal effective units, wide application range, and high organic load Effect

Inactive Publication Date: 2018-04-20
BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing biofiltration fillers are natural organic and inorganic fillers, combined fillers and artificial fillers that are scattered. Natural fillers have disadvantages such as high pressure drop, perishable, easy to acidify, and uneven distribution of gas and liquid, which leads to the collapse of the filler layer. The service life is short, the solid pellets made of peat and humus have poor air permeability, the exhaust gas and nutrient solution cannot fully contact the filler in the ball, and there are few effective units; the presence of porous inorganic fillers cannot provide nutrients for microorganisms, and the biological film is poor. Disadvantages such as high cost
The existing packing form is fixed, which cannot adapt to different air sources, and the scope of application is small

Method used

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  • Filter tower packing for processing VOCs gas and odorous gases
  • Filter tower packing for processing VOCs gas and odorous gases

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the filter tower packing is made of porous spherical shell 1 and internal packing 4, and by volume, the internal packing 4 is made up of 40% pine bark, 20% bamboo charcoal, 10% shellfish, and 30% polyurethane foam. The diameter of the porous spherical shell 1 is 44 mm, and the wall thickness is 1 mm. The circular holes 2 with a diameter of 5 mm are evenly distributed on the porous spherical shell 1 , and the number of the circular holes 2 is 309. The porous spherical shell 1 is made of high-density polyethylene. The porous spherical shell 1 is composed of two hemispherical shells, and the two hemispherical shells are connected by a spherical shell opening and closing part 3 . The particle size of pine bark, bamboo charcoal, shellfish and polyurethane foam is 6mm. The inner filler 4 is loaded with functional bacteria by spray drying and curing.

Embodiment 2

[0024] The filter tower packing is composed of a porous spherical shell 1 and an internal packing 4, and the internal packing 4 is composed of 50% pine bark, 30% bamboo charcoal, 5% shellfish and 15% polyurethane foam by volume. The porous spherical shell 1 has a diameter of 35 mm and a wall thickness of 1 mm. The circular holes 2 with a diameter of 3 mm are evenly distributed on the porous spherical shell 1 , and the number of the circular holes 2 is 400. The porous spherical shell 1 is made of high-density polyethylene. The particle size of pine bark, bamboo charcoal, shellfish and polyurethane foam is 20mm. The inner filler 4 is loaded with functional bacteria by spray drying and curing.

[0025] Application example: Treatment of VOCs and malodorous gases in petrochemical and domestic sewage mixing tanks in Liaohua sewage treatment plant

[0026] A biofiltration tower with a height of 3m and a diameter of 1.4m is used, and the filling is 1.5m 3 Filter tower filler of the...

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Abstract

The invention discloses a filter tower packing for processing VOCs gas and malodorous gases. The filter tower packing is composed of a porous spherical shell and an inner packing, and the inner packing comprises, by volume, 40-50% of pine barks, 20-30% of bamboo charcoal, 5-10% of shellfish and 10-35% of polyurethane foam. The filter tower packing enables the filter tower to run efficiently and stably, has a wide application range, and is convenient for large-scale application and use.

Description

technical field [0001] The invention belongs to the field of environmental treatment, and in particular relates to a special porous spherical shell biological filler for a biological filter tower for treating VOCs and malodorous gases. Background technique [0002] In recent years, with the introduction of a series of policies and regulations such as the "Air Pollution Action Plan", "Air Pollution Prevention and Control Measures", "Action Plan for the Reduction of Volatile Organic Compounds in Key Industries", and incorporated into the national "13th Five-Year Plan" outline, volatile organic compounds (VOCs ) and malodorous gas emission reduction and treatment have entered the forefront of the field of environmental protection. [0003] At present, there are methods such as absorption method, adsorption method, condensation method, catalytic combustion method, plasma oxidation method, photocatalytic oxidation method, biological method and other methods for purification and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85B01D53/44
CPCB01D53/44B01D53/85B01D2251/95B01D2257/708Y02A50/20
Inventor 刘守成金艳方王莹莹杜发洋张烨寇焕起隋志强王哲阙菘葆刘爽葛亚庆瞿继伟柏莹
Owner BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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