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A formaldehyde purification device that uses flocculation yeast to absorb and degrade formaldehyde

A formaldehyde purification and flocculation technology, which is applied to gasification substances, chemical instruments and methods, separation methods, etc., can solve the problems of air purifier purification effect activated carbon purification effect is good, air purifier quality is uneven, and it is not suitable for air purification. Achieve the effect of improving efficiency, increasing contact area, and thorough process

Active Publication Date: 2020-02-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies have shown that among the air purifiers currently on the market, the purification effect of the composite air purifier is not better than that of a single activated carbon, and the purification effect and purification ability measured according to different measurement standards show that, Existing air purifiers are of varying quality and cannot meet the requirements of daily life
In addition, the purification ability of green plants is greatly affected by seasons, climate, temperature, and humidity, and the air purification effect fluctuates greatly, so it is not suitable for long-term air purification.

Method used

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  • A formaldehyde purification device that uses flocculation yeast to absorb and degrade formaldehyde
  • A formaldehyde purification device that uses flocculation yeast to absorb and degrade formaldehyde
  • A formaldehyde purification device that uses flocculation yeast to absorb and degrade formaldehyde

Examples

Experimental program
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Effect test

Embodiment 1

[0035] figure 1 A specific embodiment of the invention is shown. In this embodiment, the formaldehyde purification device using flocculation yeast to absorb and degrade formaldehyde includes a clean room, a real-time quantitative monitoring system for formaldehyde content, a spray system, a temperature control system, a pH control system, an ORP monitoring system and an air circulation system.

[0036] The clean room includes a culture room 1 and an inner room 14 . The inner chamber 14 is wrapped in the cultivation chamber 1 . The culture chamber 1 is a multi-layer sandwich structure, that is, a plurality of interlayer spaces are separated by multi-layer porous films 3, here are 4 layers, but not limited to 4 layers. figure 2 The multi-layer sandwich structure is shown, in which 5 layers of porous films 3 form a 4-layer sandwich space. The function of the porous film 3 is to fix mannose. After the flocculated yeast is cross-linked with the mannose on the porous film 3 , i...

Embodiment 2

[0050] This embodiment is basically the same as Embodiment 1, except that the culture chamber is a packing structure. That is, the fixing method of the flocculated yeast is to utilize the porous filler 21 (such as Figure 4 shown) was filled in culture chamber 1. After the flocculated yeast cells are activated, the flocculated proteins are cross-linked and fixed with the mannose on the surface of the porous filler 21. The multi-attachment sites provided by the porous filler 21 for the flocculated yeast cells increase the contact area between the indoor formaldehyde and the flocculated yeast cells.

Embodiment 3

[0052] This embodiment is basically the same as that of Embodiment 1, except that the culture chamber is a structure combining packing and multiple interlayers. That is, the fixing method of the flocculated yeast is to utilize the porous filler 21 (such as Figure 4 shown) is filled in the interlayer structure formed by the porous film 3 (the number of interlayers is determined according to needs, generally 1-10 layers, image 3 Only one layer of structure is shown). After the flocculated yeast cells are activated, the flocculated protein is cross-linked and fixed with mannose on the surface of the porous filler 21. On the basis of the sandwich structure (especially the multi-layer sandwich structure) formed by the porous film 3, the porous filler 21 is the flocculated yeast cell. The multiple attachment sites provided further increase the contact area between indoor formaldehyde and flocculated yeast cells.

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Abstract

The invention discloses a formaldehyde purifying device by utilizing flocculating yeast to absorb and degrade formaldehyde. The formaldehyde purifying device comprises a purification chamber which is internally provided with a culture chamber for culturing the flocculating yeast; side walls which enclose the culture chamber include porous supporting frames and expanded polytetrafluoroethylene membranes; the culture chamber is internally provided with porous membranes and / or porous filler for fixing mannose and thus fixing flocculating yeast cells in a crosslinking manner; the purification chamber is further internally provided with an air pump for sucking air outside the purification chamber into the culture chamber and purifying the formaldehyde in air by utilizing the flocculating yeast to absorb and degrade through the porous membranes and / or the porous filler. Preferably, the formaldehyde purifying device further comprises an ORP monitor system for monitoring a redox potential of a flocculating yeast culture solution and thus knowing the working efficiency of the device. The formaldehyde purifying device provided by the invention intelligently and environmentally realizing removal of the formaldehyde and provides another development road for formaldehyde purification.

Description

technical field [0001] The invention relates to the technical field of air purifiers, and relates to a device for purifying indoor formaldehyde air pollution, in particular to a formaldehyde purification device that uses flocculation yeast to absorb and degrade formaldehyde. Background technique [0002] Formaldehyde is located in the deep layer of wood-based panels, so the release of formaldehyde in indoor building materials and office appliances is a slow, continuous, and uninterrupted process, making it easy for people living indoors to be exposed to low-dose formaldehyde for a long time. Formaldehyde has many adverse effects on human health. At present, there are many ways to purify formaldehyde, the main indoor air pollutant, such as activated carbon method, bamboo charcoal method, photocatalyst method, synthetic fiber method, negative ion generator method, cold catalyst method, electrostatic method, green plant absorption method, etc., but these formaldehyde treatment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/84B01D53/72A61L9/03
CPCA61L9/03A61L2209/11B01D53/346B01D53/72B01D53/84B01D2251/95Y02A50/20
Inventor 刘晨光闻远曹莲莹覃锦程李凯夏娟
Owner SHANGHAI JIAO TONG UNIV
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