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Exhaust gas biological treatment filler

A biological treatment and exhaust gas technology, applied in chemical/physical process, chemical/physical/physical chemical process, air quality improvement, etc., can solve the problem of low porosity, difficulty in meeting the filling requirements of attached exhaust gas biological treatment system, and small specific surface area and other problems, to achieve the effect of low cost, multi-microbial attachment and growth, and high physical strength

Inactive Publication Date: 2008-12-03
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing chemical fillers and waste water treatment biological fillers have small specific surface area and low porosity when used, and are difficult to meet the filler requirements of the attached waste gas biological treatment system.

Method used

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  • Exhaust gas biological treatment filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] refer to figure 1 , a filler for waste gas biological treatment, including a roughly triangular base ring 1, the three corners of the base ring are arc-shaped, and the sides are slightly concave inward, and the support frame 2 arranged in the cavity of the base ring , the support frame is composed of three fixed legs 3 arranged in a star shape, and the outer ends of the legs are connected to the base ring. The cavity of the base ring also includes a filling piece 4 for increasing the specific surface area. There are multiple filling pieces, which are evenly arranged vertically on the base ring. The outer ends of the filling pieces are connected with the base ring and extend out of the base ring. The base ring. A substantially triangular reinforcing ring is also provided in the cavity of the base ring, and the sides of the triangle are also slightly concave inward to form an arc, and the reinforcing ring is fixedly connected to the base ring. Both ends of the filling s...

Embodiment 2

[0020] Below in conjunction with the embodiment of application effect comparative test, the present invention will be further described. Parallel test: set up a group of 4 transparent plexiglass towers with a diameter of 150mm and a height of 600mm, the height of the filler installation is 350mm, and the 4 towers are operated in parallel. The towers are filled with chemical filler A made of polypropylene and chemical filler made of polypropylene. Filler B, biological filler C described in Example 1 of the present invention, and porous ceramic particles (cylindrical) D have the same process conditions such as air intake load and nutrient solution spraying amount. The specifications and application effects of the four fillers are shown in Table 1.

[0021] The results showed that:

[0022] The maximum air intake is 4×1m 3 / h, toluene concentration 500~800mg / m 3 Under the conditions, after 8 months of continuous operation (to ensure the stable growth of biofilm on the filler),...

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Abstract

The present invention provides a filler for making biological treatment of waste gas. Said filler includes a triangular base ring and supporting frame arranged in the base ring cavity interior, the described supporting frame is formed from fixedly-connected supporting legs, the outer end portion of every supporting leg is connected with the described base ring. The described base ring cavity interior also includes the filling sheet for increasing specific surface area, the outer end of said filling sheet is connected with said base ring. Said filler can raise efficiency for treating waste gas.

Description

(1) Technical field [0001] The invention relates to a bulk packing used in a waste gas biological treatment device. In particular, it relates to a filler with changed geometric structure, which belongs to the field of waste gas purification. (2) Background technology [0002] Biological filtration is a new technology with good effect and low investment and operating costs in the waste gas treatment process, and the filler is an important part of the biological filtration system. Packing properties have a great influence on the operating performance and stable operation of filtration equipment. Fillers for waste gas biological treatment, like chemical fillers, require good mass transfer performance and stable physical and chemical properties; on the other hand, they also have something in common with water treatment biological fillers, that is, they are required to attach and grow more microorganisms, But the difference is that they are not suspended in the water body for a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/85B01J19/30
CPCY02A50/20
Inventor 陈建孟王家德王毓仁朱润晔周珍雄
Owner ZHEJIANG UNIV OF TECH