Composition for treating gaseous formaldehyde

Abstract

The invention discloses a composition for treating gaseous formaldehyde. The composition is prepared by mixing the following components in percentage by volume: 3.0% to 7.0% of 1.0*10<-3>mol / L HFinC12I4(R), 4.0% to 12.0% of HCl-KCl (hydrogen chloride-potassium chloride) buffer solution with pH (potential of hydrogen) value of 2.2, 7.0% to 14.0% of 0.10mol / L KBrO3 (potassium bromate) solution, and86% to 67% of H2O (hydrogen peroxide). The composition is loaded into a purifying device, and is used for clearing the formaldehyde in indoor air in real time and on line through air circulation. Thecomposition has the advantages that the composition is a rose red-color, odor-free, poisonless, harmless and safe water solution, and the preparation and use methods are simple, convenient and reliable; the formaldehyde in the indoor air can be cleared in real time and on line, the quick, high-efficiency and continuous effects are realized, and the secondary pollution is not produced; the treatment cost is low, the economic benefit is high, and the market prospect is broad.

Description

technical field [0001] The invention belongs to the field of indoor air purification, and in particular relates to a composition for controlling gaseous formaldehyde. Background technique [0002] The World Health Organization confirms that formaldehyde is a human teratogenic and carcinogenic substance. Long-term exposure will lead to gene mutations, especially damage to the human nervous system, lungs, and liver. It will directly cause contact dermatitis and mucosal irritation symptoms, and cause endocrine dysfunction. The earth endangers physical and mental health and has aroused widespread concern among people. Therefore, the national standard stipulates the allowable value of indoor formaldehyde (mg / m 3 )≤0.08. Unfortunately, due to the extensive use of plywood, particle board, wooden floor, aluminum alloy glass glue, etc. indoors, indoor formaldehyde seriously exceeds the standard. [0003] In the prior art, in order to achieve a better effect of removing formaldehyd...

AI Technical Summary

Problems solved by technology

Unfortunately, due to the extensive use of plywood, particle board, wooden floor, aluminum alloy glass glue, etc. in the room, the indoor formaldehyde seriously exceeds the standard.

[0003] In the prior art, in order to achieve a better effect of removing formaldehyde, a longer processing time is often required

In addition, formaldehyde scavenger and absorbent of amino derivative type, oxidant type compound, α-hydrogen compound type, as well as ammonium acetate, sodium bicarbonate or sodium lignin sulfonate, Xiaoaldehyde Bao (sodium bisulfite) are also used , ammonium chloride, sodium perborate solution, hypochlorous acid, etc. to spray the surface of plywood to remove formaldehyde, but there are defects such as large usage, high cost, instability and easy decomposition.

All of the above are based on the gas-solid phase reaction to remove formaldehyde for a long time and the effect is not ideal

Images