CN104209000A - Method for treating indoor air pollution - Google Patents

Method for treating indoor air pollution Download PDF

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Publication number
CN104209000A
CN104209000A CN201410383008.0A CN201410383008A CN104209000A CN 104209000 A CN104209000 A CN 104209000A CN 201410383008 A CN201410383008 A CN 201410383008A CN 104209000 A CN104209000 A CN 104209000A
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biocatalyst
photocatalyst
indoor
formaldehyde
tvoc
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CN201410383008.0A
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Chinese (zh)
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陈贻波
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陈贻波
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Priority to CN201410383008.0A priority Critical patent/CN104209000A/en
Publication of CN104209000A publication Critical patent/CN104209000A/en
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Abstract

The invention provides a method for treating indoor air pollution and relates to the field of air purification. The method includes following steps: (1) detecting concentrations of formaldehyde, benzene-series substances, ammonia and TVOC in indoor air by a detection device and comparing the concentrations with house indoor pollution limit values specified in GB50096-2011; (2) when the formaldehyde, the benzene-series substances, the ammonia and the TVOC exist in air, spraying a photocatalyst in indoor and naturally drying the photocatalyst for 0.5-1.5 h; (3) spraying a biocatalyst in indoor and naturally drying the biocatalyst for 0.5-1.5 h; (4) spraying a gas catalyst in indoor; and (5) shutting doors and windows for enclosing the door for 20-30 h and ventilating the door for 2-4 days. In the method, indoor air is treated successively through the photocatalyst, the biocatalyst and the gas catalyst. The method is green and environmental-protective, is free of secondary pollution, and can quickly and high-efficiently treat the toxic gases long-acting such as the formaldehyde, the benzene-series substances, the ammonia, the TVOC and the like.

Description

A kind of method of administering room air pollution
Technical field
The present invention relates to air purification field, particularly relate to a kind of method of administering room air pollution.
Background technology
Current improvement room air pollution has generally adopted following several:
(1) ventilate.This is a kind of commonsense method.But the harmful substance such as formaldehyde, benzene is concealed in furniture, materials for wall depths, release period 3-15, cannot remove in a short time, once run into the situation using heating installation or air-conditioning etc. to window, indoor harmful gas concentration can rise rapidly, causes long-term hazards to the health of kinsfolk.
(2) plant null method.The flowers such as bracketplant, aloe, sansevieria trifasciata are adopted to absorb indoor polluted gas, but plant adsorption effect is very limited, can not reach and purify object completely, and daytime carries out photosynthesis absorbing carbon dioxide, releasing oxygen, night then absorbs oxygen, release of carbon dioxide, unfavorable to human body, particularly to pollen, the easy allergy sufferers of flowers.
(3) chemical reagent sprays.As with chemical agents such as chemical formaldehyde scavenger, air fresheners, can not process clean, be that a kind of gas suppresses another kind of gas, do not reach the object removing pollution sources, and use chemical reagent easily to produce secondary pollution, unfavorable to health.
(4) active carbon adsorption.Formaldehyde molecule is adsorbed in its inner wall surface by physisorption by active carbon, reaches the object of the content of formaldehyde reduced in air, but limited sorption capacity, easily saturated, within about 3-5 month, be difficult to reuse; And active carbon is the formaldehyde absorbing in Nei little space, room therein, external condition also can discharge after changing, and does not reach environmental requirement.
(5) air purifier.Air purifier has certain suction-operated to polluters such as indoor formaldehydes, and it is better that effect generally understands specific activity charcoal, can remove pernicious gas and the dispelling abnormal flavors such as indoor formaldehyde gas, benzene, ammonia, TVOC.But can not very process clean at short notice, clarifier price is relatively high, different product is also different for service life, and clarifier can not pollution administration source, act on by its technology adopted larger with the position limitation put, if so a clarifier is only put in a cover house, often only have certain effect to the room that clarifier is placed, and less to the effect in other rooms.
Summary of the invention
Slowly secondary pollution problems is produced, easily in order to the method solving above improvement room air pollution takes effect, provide a kind of method of administering room air pollution, the method uses photocatalyst, the gentle catalyst of biocatalyst progressively processes room air, not only environmental protection, can not secondary pollution be produced, and the toxic gases such as formaldehyde, benzene homologues, ammonia, TVOC can be administered long-acting, quickly and efficiently.
For achieving the above object, technical scheme provided by the invention is as follows:
The step of the method for improvement room air pollution provided by the invention is as follows:
(1) use checkout equipment to detect the concentration of formaldehyde in indoor air, benzene homologues, ammonia and TVOC, and contrast with the Indoor Residential Ecological pollutant limit value that specifies in GB50096-2011;
(2) when there is formaldehyde, benzene homologues, ammonia and TVOC in air, at indoor spraying photocatalyst, and natural drying photocatalyst 0.5 ~ 1.5 hour;
(3) at indoor sprayed biological catalyst, and natural drying biocatalyst 0.5 ~ 1.5 hour;
(4) at indoor spraying gas catalyst;
(5) close the doors and windows, close after 20 ~ 30 hours, then ventilate 2 ~ 4 days.
Especially, described photocatalyst is divided into the first photocatalyst and the second photocatalyst;
When 4 times of the Indoor Residential Ecological pollutant limit value specified during the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is lower than GB50096-2011, according to order from high to low, the first photocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor;
When the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is 4 ~ 8 times of the Indoor Residential Ecological pollutant limit value specified in GB50096-2011, according to order from high to low, the second photocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor.
Especially, described first photocatalyst is mixed by the nano titanium oxide of anatase titanium dioxide and water, and the particle diameter of nano titanium oxide is 3 ~ 5nm, and the content of nano titanium oxide is 0.4% ~ 0.7%.
Especially, described second photocatalyst is mixed by the nano titanium oxide of anatase titanium dioxide, nano-metal particle, precious metal ion and water, and the particle diameter of nano titanium oxide and nano-metal particle is 3 ~ 5nm, and the content of nano titanium oxide is 0.8% ~ 1.2%.
Especially, described nano-metal particle is one or more in silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium or lutetium.
Especially, the consumption of described first photocatalyst and the second photocatalyst is 0.01 ~ 0.014L/m 2.
Especially, described biocatalyst is divided into the first biocatalyst and the second biocatalyst;
When 4 times of the Indoor Residential Ecological pollutant limit value specified during the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is lower than GB50096-2011, according to order from high to low, the first biocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor;
When the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is 4 ~ 8 times of the Indoor Residential Ecological pollutant limit value specified in GB50096-2011, according to order from high to low, the second biocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor.
Especially, the biology enzyme composition that described first biocatalyst and the second biocatalyst are secreted by water, flora and flora, wherein in the first biocatalyst, biology enzyme content is the content of biology enzyme in the 3% ~ 5%, second biocatalyst is 6% ~ 10%.
Especially, the consumption of described first biocatalyst and the second biocatalyst is 0.014 ~ 0.02L/m 2.
Especially, the consumption of described gas catalyst is 0.01 ~ 0.014L/m 2.
Beneficial effect of the present invention:
(1) first the method for improvement room air pollution provided by the invention measures the pollution level of room air, then selectes the kind of photocatalyst and biocatalyst according to pollution level, can process targetedly room air.
(2) main component in photocatalyst is titanium dioxide, does not contain or contains a small amount of nano-metal particle, to human non-toxic; Containing the various biology enzymes by microorganism secretion in biocatalyst, nontoxic, and action condition is gentle; Gas catalyst pain is also simultaneously safety, nontoxic disinfectant, therefore, the method environmental protection of improvement room air pollution provided by the invention, can not produce secondary pollution.
(3) use photocatalyst, the gentle catalyst of biocatalyst progressively process room air.Photocatalyst can be played effectiveness when having sunshine and light, the organic chemical pollutant matter such as formaldehyde, benzene and the TVOC that can may slowly release in the continual oxidation Decomposition later stage, the bacterium in air, virus and pathogenic microorganisms can also be killed simultaneously to a certain extent, guarantee that indoor have lasting healthy air; Biology enzyme can accelerate the volatilization of the noxious materials such as finishing material inner and surperficial benzene, toluene, ethylbenzene, dimethylbenzene, and absorbs efficiently, fast and the organic pollution such as formaldehyde, benzene and TVOC that degraded finishing material dissociates; Gas catalyst can rapidly and efficiently neutralize, decompose various peculiar smell free in air.Therefore the method for improvement room air pollution provided by the invention can administer the toxic gases such as formaldehyde, benzene homologues, ammonia, TVOC long-acting, quickly and efficiently.
Detailed description of the invention
The present invention is described further below, and the present embodiment only represents a kind of preferred forms, should not be construed as limiting the invention.
The step of the method for improvement room air pollution provided by the invention is as follows:
(1) use checkout equipment to detect the concentration of formaldehyde in indoor air, benzene homologues, ammonia and TVOC, and contrast with the Indoor Residential Ecological pollutant limit value that specifies in GB50096-2011.
" Code for design of dwelling houses " i.e. that country promulgates be GB50096-2011 regulation:
Residential Indoor Air Pollution thing limit value is:
Free formaldehyde≤0.08 (mg/m 3)
Benzene≤0.09 (mg/m 3)
Ammonia≤0.2 (mg/m 3)
TVOC?≤0.5(mg/m 3
Usually, the formaldehyde in room air, benzene homologues, ammonia and TVOC are mainly derived from: the soft dress cloth of ceiling (i.e. finial), metope, furniture and household (as curtain, cloth sofa, mattress, carpet etc.).
(2) when there is formaldehyde, benzene homologues, ammonia and TVOC in air, at indoor spraying photocatalyst, photocatalyst is divided into the first photocatalyst and the second photocatalyst.
Photocatalyst is under the irradiation of light, similar photosynthetic light-catalyzed reaction can be produced, produce the extremely strong free hydroxy of oxidability and active oxygen, there is very strong photoredox function, the various organic compound of oxidable decomposition and part inorganic matter, the cell membrane of bacterium and the protein of solidification virus can be destroyed, can kill bacteria Sum decomposition organic pollution, organic pollution is resolved into free of contamination water and carbon dioxide.
When 4 times of the Indoor Residential Ecological pollutant limit value specified during the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is lower than GB50096-2011, according to order from high to low, the first photocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor; First photocatalyst is mixed by the nano titanium oxide of anatase titanium dioxide and water, and the particle diameter of nano titanium oxide is 3 ~ 5nm, and the content of nano titanium oxide is 0.4% ~ 0.7%; The consumption of the first photocatalyst is 0.01 ~ 0.014L/m 2.
Work as formaldehyde in air, benzene homologues, when the concentration of ammonia and TVOC is 4 ~ 8 times of the Indoor Residential Ecological pollutant limit value specified in GB50096-2011, to ceiling, metope, curtain, furniture, carpet and floor spray the second photocatalyst according to order from high to low, second photocatalyst is by the nano titanium oxide of anatase titanium dioxide, nano-metal particle, precious metal ion and water mix, the particle diameter of nano titanium oxide and nano-metal particle is 3 ~ 5nm, the content of nano titanium oxide is 0.8% ~ 1.2%, wherein nano-metal particle is silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, one or more in ytterbium or lutetium, second photocatalyst consumption is 0.01 ~ 0.014L/m 2.
Then natural drying photocatalyst 0.5 ~ 1.5 hour.
(3) at indoor sprayed biological catalyst.
Biocatalyst is divided into the first biocatalyst and the second biocatalyst, the biology enzyme composition that first biocatalyst and the second biocatalyst are secreted by water, flora and flora, wherein in the first biocatalyst, biology enzyme content is the content of biology enzyme in the 3% ~ 5%, second biocatalyst is 6% ~ 10%.
Biology enzyme in biocatalyst is attached to biological bacteria surface, flora is helped to catch the organic molecules such as formaldehyde, and utilize its distinctive catalysis, destroy organic strand very rapidly, be degraded to low molecule, the elements such as C, N, S in the harmful substances such as formaldehyde are split off from its strand; Flora then utilizes its special symbiosis, Co metabolism or cometabolism relation, and be responsible for the growth energy of the elements such as these C, N, S as self to be absorbed respectively, the product of this bioprocess is: the water of H, O and denier.
When 4 times of the Indoor Residential Ecological pollutant limit value specified during the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is lower than GB50096-2011, spray the first biocatalyst to ceiling, metope, curtain, furniture, carpet and floor according to order from high to low, consumption is 0.014 ~ 0.02L/m 2.
When the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is 4 ~ 8 times of the Indoor Residential Ecological pollutant limit value specified in GB50096-2011, spray the second biocatalyst to ceiling, metope, curtain, furniture, carpet and floor according to order from high to low, consumption is 0.014 ~ 0.02L/m 2.
Then natural drying biocatalyst 0.5 ~ 1.5 hour.
(4) at indoor spraying gas catalyst, the consumption of gas catalyst is 0.01 ~ 0.014L/m 2.
The main component of gas catalyst is chlorine dioxide (CLO 2) and superoxide anion (O 2-).Under the acting in conjunction of chlorine dioxide and superoxide anion [4], change osmotic pressure and the diffusion rate of material in indoor environment, thus the accelerated release in vitro of the various pernicious gas of catalysis, by being swift in response oxidation of formaldehyde is degraded to carbon dioxide and water, the pernicious gases such as benzene homologues, VOC, ammonia are degraded to nonhazardous material.
(5) close the doors and windows, close after 20 ~ 30 hours, then ventilate 2 ~ 4 days.
After adopting method provided by the invention to administer room air, the content of the formaldehyde of room air, benzene homologues, ammonia and TVOC is all lower than the Indoor Residential Ecological pollutant limit value specified in GB50096-2011.
According to the content of the formaldehyde in room air, benzene homologues, ammonia and TVOC and the difference of main source, the position of the consumption of photocatalyst, biocatalyst and gas catalyst and emphasis spraying as shown in Table 1 and Table 2.
Table 1: when pollutant levels are lower than administering method during indoor pollutant limit value 4 times
Table 2: the administering method when pollutant levels are 4 ~ 8 times of indoor pollutant limit value

Claims (10)

1. administer a method for room air pollution, it is characterized in that: step is as follows:
Use checkout equipment to detect the concentration of formaldehyde in indoor air, benzene homologues, ammonia and TVOC, and contrast with the Indoor Residential Ecological pollutant limit value that specifies in GB50096-2011;
When there is formaldehyde, benzene homologues, ammonia and TVOC in air, at indoor spraying photocatalyst, and natural drying photocatalyst 0.5 ~ 1.5 hour;
At indoor sprayed biological catalyst, and natural drying biocatalyst 0.5 ~ 1.5 hour;
At indoor spraying gas catalyst;
Close the doors and windows, close after 20 ~ 30 hours, then ventilate 2 ~ 4 days.
2. the method for improvement room air pollution according to claim 1, is characterized in that: described photocatalyst is divided into the first photocatalyst and the second photocatalyst;
When 4 times of the Indoor Residential Ecological pollutant limit value specified during the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is lower than GB50096-2011, according to order from high to low, the first photocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor;
When the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is 4 ~ 8 times of the Indoor Residential Ecological pollutant limit value specified in GB50096-2011, according to order from high to low, the second photocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor.
3. the method for improvement room air pollution according to claim 2, it is characterized in that: described first photocatalyst is mixed by the nano titanium oxide of anatase titanium dioxide and water, the particle diameter of nano titanium oxide is 3 ~ 5nm, and the content of nano titanium oxide is 0.4% ~ 0.7%.
4. the method for improvement room air pollution according to claim 2, it is characterized in that: described second photocatalyst is mixed by the nano titanium oxide of anatase titanium dioxide, nano-metal particle, precious metal ion and water, the particle diameter of nano titanium oxide and nano-metal particle is 3 ~ 5nm, and the content of nano titanium oxide is 0.8% ~ 1.2%.
5. the method for improvement room air pollution according to claim 4, is characterized in that: described nano-metal particle is one or more in silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium or lutetium.
6. the method for the improvement room air pollution according to claim 2,3 or 4, is characterized in that: the consumption of described first photocatalyst and the second photocatalyst is 0.01 ~ 0.014L/m 2.
7. the method for improvement room air pollution according to claim 1, is characterized in that: described biocatalyst is divided into the first biocatalyst and the second biocatalyst;
When 4 times of the Indoor Residential Ecological pollutant limit value specified during the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is lower than GB50096-2011, according to order from high to low, the first biocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor;
When the concentration of formaldehyde in air, benzene homologues, ammonia and TVOC is 4 ~ 8 times of the Indoor Residential Ecological pollutant limit value specified in GB50096-2011, according to order from high to low, the second biocatalyst is sprayed to ceiling, metope, curtain, furniture, carpet and floor.
8. the method for improvement room air pollution according to claim 7, it is characterized in that: the biology enzyme composition that described first biocatalyst and the second biocatalyst are secreted by water, flora and flora, wherein in the first biocatalyst, biology enzyme content is the content of biology enzyme in the 3% ~ 5%, second biocatalyst is 6% ~ 10%.
9. the method for the improvement room air pollution according to claim 7 or 8, is characterized in that: the consumption of described first biocatalyst and the second biocatalyst is 0.014 ~ 0.02L/m 2.
10. the method for improvement room air pollution according to claim 1, is characterized in that: the consumption of described gas catalyst is 0.01 ~ 0.014L/m 2.
CN201410383008.0A 2014-08-06 2014-08-06 Method for treating indoor air pollution Pending CN104209000A (en)

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN104759298A (en) * 2015-03-03 2015-07-08 北京海斯居科技有限公司 Preparation method for multielement combined photocatalyst
CN105126565A (en) * 2015-08-26 2015-12-09 马永 Indoor and in-car air purification method
CN105195011A (en) * 2015-10-29 2015-12-30 安徽爱弥儿环境科技有限公司 Active biological nano photo-catalyzed lytic enzyme
CN106178928A (en) * 2015-08-17 2016-12-07 江苏微特克纳米科技有限公司 A kind of controlled natural biological taste removal is except formaldehyde products and its preparation method and application
CN106621795A (en) * 2016-10-14 2017-05-10 成都绿昊科技有限公司 Method for efficiently purifying air by aid of photocatalysts
CN107469270A (en) * 2017-01-12 2017-12-15 伦慧东 It is a kind of to purify and maintain room air construction method up to standard
CN107497093A (en) * 2017-08-31 2017-12-22 武汉中质先锋科技股份有限公司 Indoor decorating air pollution comprehensive regulation engineering method
CN107899386A (en) * 2017-10-31 2018-04-13 茂名清华创富环保有限公司 A kind of Indoor Air Pollution Purification method
CN108826529A (en) * 2018-05-03 2018-11-16 宁波蓝晟环保科技有限公司 A kind of method of room air pollution prevention and treatment
CN109046317A (en) * 2018-07-27 2018-12-21 安徽建筑大学 A kind of rare earth ion doped lead molybdate micro Nano material and preparation method thereof and its application in formaldehyde degradation by photocatalytic oxidation process
CN109157966A (en) * 2018-09-27 2019-01-08 苏州盟通利机电设备有限公司 The purification method of formaldehyde in indoor air
WO2021097119A1 (en) * 2019-11-11 2021-05-20 ProKure Solutions, LLC Methods of treatment of volatile organic compounds using chlorine dioxide

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104759298A (en) * 2015-03-03 2015-07-08 北京海斯居科技有限公司 Preparation method for multielement combined photocatalyst
CN104759298B (en) * 2015-03-03 2017-11-10 北京海斯居科技有限公司 Multiplexed combination photochemical catalyst preparation method
CN106178928A (en) * 2015-08-17 2016-12-07 江苏微特克纳米科技有限公司 A kind of controlled natural biological taste removal is except formaldehyde products and its preparation method and application
CN105126565A (en) * 2015-08-26 2015-12-09 马永 Indoor and in-car air purification method
CN105195011A (en) * 2015-10-29 2015-12-30 安徽爱弥儿环境科技有限公司 Active biological nano photo-catalyzed lytic enzyme
CN106621795A (en) * 2016-10-14 2017-05-10 成都绿昊科技有限公司 Method for efficiently purifying air by aid of photocatalysts
CN107469270A (en) * 2017-01-12 2017-12-15 伦慧东 It is a kind of to purify and maintain room air construction method up to standard
CN107497093A (en) * 2017-08-31 2017-12-22 武汉中质先锋科技股份有限公司 Indoor decorating air pollution comprehensive regulation engineering method
CN107899386A (en) * 2017-10-31 2018-04-13 茂名清华创富环保有限公司 A kind of Indoor Air Pollution Purification method
CN108826529A (en) * 2018-05-03 2018-11-16 宁波蓝晟环保科技有限公司 A kind of method of room air pollution prevention and treatment
CN109046317A (en) * 2018-07-27 2018-12-21 安徽建筑大学 A kind of rare earth ion doped lead molybdate micro Nano material and preparation method thereof and its application in formaldehyde degradation by photocatalytic oxidation process
CN109157966A (en) * 2018-09-27 2019-01-08 苏州盟通利机电设备有限公司 The purification method of formaldehyde in indoor air
WO2021097119A1 (en) * 2019-11-11 2021-05-20 ProKure Solutions, LLC Methods of treatment of volatile organic compounds using chlorine dioxide

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