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Safe and environmentally friendly formaldehyde scavenger

A formaldehyde scavenger, safe and environmentally friendly technology, applied in the direction of gas treatment, dispersed particle separation, membrane technology, etc., can solve the problems of difficult large-scale use, secondary pollution, easy to generate PM2.5, etc., to improve the effective use time, The effect of improving the clearance rate

Inactive Publication Date: 2018-09-14
杭州橙树环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing formaldehyde scavengers generally contain solid particles, which are prone to produce PM2.5, or are toxic, and are likely to cause secondary pollution, making it difficult to use them on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Put 100 grams of fresh aloe vera (Aloe vera), 10 grams of money grass (purchased from Hangzhou Fanghuichuntang) and 10 grams of brocade lanterns (purchased from Hangzhou Fanghuichuntang) into a juice extractor and pulverize to a slurry, take Put 20 grams of pulverized slurry into a 100 ml beaker and add 30 grams of deionized water to mix evenly, then sonicate at 6000 Hz for 15 seconds, and then sonicate for 5 seconds after every 5 seconds of sonication. After ultrasonication, the slurry was filtered with a vacuum pump to obtain a yellow-brown filtrate. Combine 15 grams of the resulting filtrate with 30 grams of γ-alumina (purchased from Zhejiang Superfine Chemical Co., Ltd., with a specific surface area of ​​137 m 2 / g, with a pore volume of 0.41 cm 3 / gram, the pore volume of 50-300 nanometers accounted for 78% of the total pore volume) mixed and stirred evenly with a glass rod, then left to stand at room temperature (23° C.) for 15 minutes, and then filtered to get 1...

Embodiment 2

[0032] After placing the formaldehyde scavenger prepared in Example 1 for 3 months, the same method was used to test, and the formaldehyde removal rate was determined to be 90.38%.

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PUM

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Abstract

The invention discloses a safe and environmentally friendly formaldehyde scavenger, wherein the formaldehyde scavenger comprises a plant extract, a foaming agent and water, and the weight ratio of theplant extract, the foaming agent and the water is 100: (1-10): (50-1000); the step for preparing the plant extract is as follows: pulverizing aloe, Lysimachia christinae Hance and chinese lantern-plant, adding water for ultrasonic treatment and first filtration, adding alumina to obtained filtrate, stirring uniformly, performing first standing and second filtration, putting obtained filter residue in water for second standing and then third filtration, and performing low temperature rotary evaporation on obtained filtrate to obtain the plant extract; the weight ratio of the aloe, the Lysimachia christinae Hance and the chinese lantern-plant is 100: (3-10): (1-15). The formaldehyde scavenger is based on a traditional aloe extract as a main component, and the Lysimachia christinae Hance andthe chinese lantern-plant are added as auxiliary components, the scavenging rate of the formaldehyde scavenger can be further improved, and the effective use time of the formaldehyde scavenger can beimproved.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a safe and environmentally friendly formaldehyde scavenger. Background technique [0002] The main hazard of formaldehyde is the irritation to the skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Formaldehyde concentrations greater than 0.08m3 can cause red eyes, itchy eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, asthma, dermatitis, etc. Newly decorated rooms have higher levels of formaldehyde, which is the main cause of many diseases. [0003] The Chinese patent document with the publication number CN104645795A discloses a formaldehyde scavenger and its preparation method. The formaldehyde scavenger mainly includes the following components in parts by weight: urea peroxide or thiourea: 6-10 parts; alkaline earth metal Chloride: 1-2 parts; Bromide: 1 part; Titanium d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/72B01D53/78B01D53/86
CPCB01D53/007B01D53/72B01D53/78B01D53/8668B01D2259/4508B01D2259/804
Inventor 吕伟波
Owner 杭州橙树环保科技有限公司
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