CN108136311A - For removing the processed activated carbon of organic in air and inorganic pollution - Google Patents

For removing the processed activated carbon of organic in air and inorganic pollution Download PDF

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Publication number
CN108136311A
CN108136311A CN201680062078.3A CN201680062078A CN108136311A CN 108136311 A CN108136311 A CN 108136311A CN 201680062078 A CN201680062078 A CN 201680062078A CN 108136311 A CN108136311 A CN 108136311A
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activated carbon
formaldehyde
media
air
filter
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CN201680062078.3A
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CN108136311B (en
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罗伯特·W·瑞祖克
卡提克·菩提库奇
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Gredford Technologies Ltd
Graver Technologies LLC
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Gredford Technologies Ltd
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Priority to CN202110988503.4A priority Critical patent/CN114073935A/en
Priority claimed from PCT/US2016/058198 external-priority patent/WO2017070526A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2065—Carbonaceous material the material being fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air

Abstract

It is a kind of with air in or gaseous organic impurity such as formaldehyde effecting reaction combination of filters.Combination of filters is formed by filter substrate, such as web or extruding carbon block, is handled with three (methylol) aminomethanes.This combination is unexpected the result is that more longlasting filter, can be adsorbed with machine air plankton than the untreated filter media of same type within longer a period of time.The removal of formaldehyde is good depicted example.

Description

For removing the processed activated carbon of organic in air and inorganic pollution
Technical field
The present invention relates generally to it is a kind of with air in or gaseous state is organic and the combination of filters of inorganic pollution effecting reaction, And those findable ingredients-such as sulfur dioxide, nitrogen dioxide and vulcanization in such as diesel engine vent gas in removal air Hydrogen.It is more particularly related to a kind of combination of filters that can remove formaldehyde in air.In addition, the present invention provides A kind of method for irreversibly removing or reducing the organic and inorganic pollution in surrounding air.
Background technology
Impurity in air, such as formaldehyde, sulfur dioxide, nitrogen dioxide, hydrogen sulfide etc., represent generally existing in environment Dangerous worry.As descriptive example, formaldehyde is a kind of colourless, strong odoriferous gas, is typically found in water (water Base) in solution.Upon condensation, gas is converted into the formaldehyde (different chemical formulations) of various other forms, with bigger Practical value.Usually it is used as preservative in medical laboratory and the mortuary, formaldehyde can be also found in many products, such as Chemicals, particieboard, household items, glue, wash-and-wear fabrics, paper product coating, fiberboard and glued board.It is also widely used as work Industry fungicide, fungicide and disinfectant.
Formaldehyde is a kind of molecule of stabilization, is formed by adding in two hydrogen atoms in carbonic acyl radical.It has chemistry member Plain symbol HCHO (H2C=O).Exactly carbonic acyl radical group or function make formaldehyde react so good with other molecules.This function makes first Aldehyde is combined with other molecule in close, makes it the reason for linking together substance and forming unique, multiduty property attribute Think substance.
Formaldehyde, a kind of organic compound and simplest aldehyde, can by with known reagent such as potassium permanganate and hydrogen Potassium oxide/iodate nak response is aoxidized, and it is invalid to be both found to be.It is most common aldehyde in environment.Natural background is dense Degree<1 microgram/cubic meter, averagely (1ppm=1.25 milligrams/cubic meter of about 0.5 microgram/cubic meter；1 milligram/cubic metre= 0.8ppm (under 20 DEG C and 1013 kPas)).In urban environment, outdoor air concentration is more changeable, and dependent on locality Situation；Annual is usually between 1 to 20 microgram/cubic meter.Peak in short-term, such as in heavy traffic or serious inversion, Range is up to 100 micrograms/cubic meter.
The highest content of formaldehyde in air is detected in air indoors, from the various consumer goods such as construction material It is released in household items.At least a survey report is said, indoor formaldehyde content range from 0.10/1000000th to 3.68(ppm).Than being found that higher content in old traditional residential in coming of new or flowing house.
Acute toxic reaction caused by formaldehyde exposure is stimulated mainly to have eye, nose, larynx and the shadow to nasal cavity by sucking It rings.Other visible influences of the Human body package in high-content formaldehyde have cough, stridulate, pectoralgia and bronchitis.
Human body intake formaldehyde can lead to the corrosion of gastrointestinal tract, the inflammation and ulcer in oral cavity, esophagus and stomach.
Formaldehyde can be used as gas or steam to be inhaled into, and can also be absorbed as liquid by skin.In the processing of textile And human body may be touched in the production process of resin.In addition to healthcare professional and the technology people of medical laboratory Member, potential High risk group include teacher and of funeral and interment worker and the biological sample of processing formaldehyde or formalin-fixed It is raw.
It is toxic after formaldehyde intake, and can be strong skin stimuli.Formaldehyde is easy to be absorbed by the skin, and is Cause the tenth kind of most common reason of dermatitis.The aerial concentration of formaldehyde height of exposure can lead to serious respiratory tract simultaneously And cause permanently to breathe damage.The aerial concentration of exposure is more than that 100/1000000ths (air ppm) can lead to twitch, dusk Fan is dead.
Formaldehyde almost with primary amine and secondary amine, mercaptan, hydroxyl and amide react to form methyl-derivatives by moment.Formaldehyde is made It can react for electrophilic reagent with macromolecular such as DNA, RNA and protein, so as to form reversible adduct or irreversible Cross-linking agent.Absorbed formaldehyde can be oxidized to formic acid with three kinds of different approach, and can be by exhalation as carbon dioxide Or large biological molecule is included into, the biosynthesis pathway of a carbon is relied on by tetrahydrofolic acid.
OSHA has determined that the permissible exposure limit (PEL's) of formaldehyde.Two PEL's have been established for formaldehyde：8 is small When time weighted average (PEL-TWA=0.75ppm) and short-term exposure limit (STEL=2.0ppm).
Although many products are it is possible that by Form aldehyde release to room air, seriously pollution contains caused by being seldom responsible for Amount.Pressed wood product and UFFI (urea-formaldehyde foam-thermal insulation) can be than the rate release formaldehydes of other products bigger.
Therefore in the prior art, the method for having sought to remove or reducing formaldehyde in air content.In potential formaldehyde In the fabrication stage of releasing and the environment being mounted in these articles, all once attempted to reduce content of formaldehyde.For example, 1983 On August is presented to the entitled of Lehmann for 9 and " provides use for reducing the method for Form aldehyde release and combination in wood composite board In reducing the method for Form aldehyde release and combination in wood panel " U.S. Patent No. 4397756, teach a kind of comprising urine The combination of element, carbohydrate based materials and acidic catalyst.The entitled of Dorman et al. is presented on May 14th, 1985 " to use In the absorbent of formaldehyde in air " U.S. Patent No. 4517111 provide a kind of combination of substance, inhaled by permanganate It is attached or be chemisorbed to solid base support on.This combination can be released or included in container or cylindrantherae, so as to connect It touches by the air of formaldehyde pollution.
The entitled of Farkas is presented on May 30th, 2006 " to combine gaseous state removing toxic substances formaldehyde, in aqueous solution, and protect people The U.S. Patent No. 7052683 of class cell resistance formaldehyde " teaches a kind of compound for containing substance removing toxic substances combination, It is rapid to neutralize and fix toxic formaldehyde vapors, formaldehyde adducts are formed, wherein enzyme is thin to Oral Health Suryey and oral epithelium Important role is played in the defence of formaldehyde in born of the same parents' line.
Although having had taken up more measures to reduce the exposure of formaldehyde, but still improved method is needed for controlling Gaseous formaldehyde is smaller concentration in environment.Therefore, it is desirable to develop a kind of device of filter type, and formaldehyde will be by not whereby Reversibly it is kept.
Invention content
The problem of in view of prior art and deficiency, therefore the object of the present invention is to provide a kind of charcoal filters, use In removing such as sulfur dioxide, nitrogen dioxide, hydrogen sulfide and the organic impurities such as formaldehyde of the inorganic impurity in air, only lift several Example.
It is another object of the present invention to use the activated carbon treatment web impregnated of three (methylol) aminomethanes or TRIS Substrate is as a kind of device, for removing the impurity in organic and inorganic air.
The realization of above-mentioned and other purposes in the present invention will be apparent for a person skilled in the art, be related to A kind of filter media is used to remove the organic pollution in air, comprising activated carbon media, has the first charge and is changed Reagent-impregnated is learned to be used to remove formaldehyde and/or the other aldehydes in air, while organic compound is removed using activated carbon media.
Chemical reagent may include being chemically treated activated carbon media with the monolayer of three (methylol) aminomethanes.
The pH that activated carbon media preferably includes to change water inlet pH value changes material so that microbial contamination present in water inlet Object maintains the second charge with the first opposite charge of activated carbon media.
Activated carbon media may include solid composite filter device medium, fiber paper delivery medium or nanofiber filter medium.
Activated carbon media preferably has the first charge, and is used for by chemical reagent dipping removing sulfur dioxide, nitrogen dioxide And/or hydrogen sulfide.
On the other hand, the present invention relates to a kind of filter medias that formed to be used to remove formaldehyde and/or the other aldehyde in air The technique of class, this technique include：With three (methylol) aminomethane impregnated activated carbons；There is provided substrate web, (fibrillation is received Rice fiber)；With the thermoplastic adhesive particle position activity impregnated carbon on substrate web；And the active impregnation of carbon fibers of fusion With thermoplastic adhesive particle to substrate web.
Technique may include that addition is bonded to the second substrate layer on substrate web by thermoplastic adhesives.
Description of the drawings
The feature of the present invention is considered novel, and illustrates the characteristic of elements of the present invention in the appended claims. These charts are only used for the purpose of description, and are not intended to and draw specification.However the present invention itself, to tissue or operation side For method, detailed description in conjunction with the accompanying drawings can obtain best understanding：
Fig. 1 depicts the concentration of formaldehyde curve graph at any time for non-TRIS bases impregnated carbon；
Fig. 2 depicts the concentration of formaldehyde curve graph at any time for TRIS base impregnated carbons.
Specific embodiment
In the preferred embodiment of the present invention is described, by Fig. 1-2 in refer to the attached drawing, wherein similar label represents Ben Fa Bright similar feature.
Chemisorbed is a kind of comprising the adsorpting type chemically reacted between surface and adsorbate.It is generated in adsorbent surface New chemical bonding.When chemical reaction occurs for volatile contaminant molecule and adsorbent surface to form non-volatile product, Chemisorbed will occur.This mechanism allows generally for the compound of capture lower boiling, such as formaldehyde.As a result, by suitable When chemical reagent impregnate them, the filter capacity of the adsorbent filter medium such as carbon composite can be significantly increased.For The cost for improving efficiency and paying is the alternative of reagent." adsorbent filter medium " used herein or " absorption is pre- Filter medium " refers to the filter media with adsorbent such as activated carbon.The example of adsorbent filter medium isIt can be obtained from the KX technologies Co., Ltd business of Connecticut State West Haven.
The present invention combines complex filter medium, such as charcoal filter medium, such asIt is generally wrapped The pH for including charge carrying media and changing water inlet pH value changes material so that microorgranic contaminant present in water inlet is maintained with having The first opposite charge of the charge carrying media of second charge.Electrification complex filter medium can be known to the skilled in the art Any charge carrying media, such as solid composite filter device medium, fiber paper delivery medium and nanofiber filter medium, name just a few.
It usesComplex filter medium is as descriptive example, but it is only this kind of not limit the present invention Active carbon composite.Activated carbon is the porous material of high surface area, is widely used in purification, material separation, catalysis and medicine The fields of grade.Activated carbon has high-adsorption-capacity, surface-active and pore diameter range；There is many applications in which with useful properties because Son.Activated carbon can be made of a variety of source materials：Natural prodcuts such as coal, cocoanut shell, timber, peat or bone, Yi Jihe Into material such as polymer.
Filter media usually has the moisture less than 10% and includes 50:The 20 of 50 mixing × 50 grid activated carbon.It is unexpected as a result, when this complex filter medium by three (methylol) aminomethane chemistry It is the organic compound represented with formula (HOCH2) 3CNH2 during reason.
Addition TRIS is a kind of for removing the filter media of formaldehyde in air and other aldehyde in order to create, and is utilized simultaneously Based activated carbon removes organic compound.TRIS reacts to form oxazolidine compound, two kinds of aldehydes point with aldehydes such as formaldehyde Son reacts to form oxazolidine with TRIS, provides high performance air purification adsorbent.
The example for reacting the phosphinylidyne based compound for being the derivative containing ammonia of formaldehyde and TRIS reagents.Level of reaction can lead to carbon The bonding of acyl group carbon and amine nitrogen and collection and the characterization that can be used for aldehyde and ketone.
The activated carbon of this new processing can also react, such as sulfur dioxide, nitrogen dioxide with the ingredient of diesel exhaust And hydrogen sulfide.
The superior functions that treadmill test data demonstrating TRIS based composites are compared with traditional (KI dippings) activated carbon.Figure 1 is the concentration of formaldehyde curve graph at any time for non-TRIS bases impregnated carbon.Fig. 2 is for the concentration of formaldehyde of TRIS base impregnated carbons Curve graph at any time.In both cases, initial air formaldehyde concentration is based upon 30ppm, 50% relative humidity, and And it is delivered with 0.25 meter per second of speed.
In Fig. 1, untreated (non-TRIS yls) impregnated carbon is carried by saturation and no longer in about 50 to 60 minutes For formaldehyde filter capacity.Within this period, the initial concentration of formaldehyde in air will be close under charcoal filter (30ppm) The similar amount of trip.
In fig. 2, treated (TRIS yls) impregnated carbon is used as filter media.The breakthrough point of saturation or formaldehyde is straight Can just it occur by 150 to 240 minutes, it means that processed carbon filter is than untreated carbon filter energy three-to-four-fold More effectively remove the formaldehyde in air.This surprisingly causes the monolayer with three (methylol) aminomethanes chemically treated multiple Close the combination of filter media.
For handling the technique of charcoal filter, preferably in the form of paper, including providing first substrate fiber Net, such as include fibrillated nanofiber.Then, active (dipping) carbon is deposited with the particle of thermoplastic adhesives, quilt Fuse into first substrate web and impregnated carbon.Impregnated carbon is impregnated by three (methylol) aminomethanes.
This net may also include second substrate layer, and first substrate is bonded to by thermoplastic adhesives.
The net that the fibrous paper of activated carbon with useful TRIS dippings is formed has the advantage that, uses relatively low composite wood Material weight achieves that formaldehyde removal efficiency is equal to or more than the commercially available other products using heavier activated carbon Efficiency.
As previously mentioned, treated charcoal filter can also react, such as dioxy with the ingredient of diesel exhaust Change sulphur, nitrogen dioxide and hydrogen sulfide.In addition, activated carbon also generates expectedly with combinations of the TRIS on these air planktons Intensive filtration.
Although having combined specific preferred embodiment, invention has been described, according to foregoing description, for ability For the technical staff in domain, many replacements, modifications and changes are obvious.It is therefore contemplated that appended claims will include Any such replacement, modifications and changes, without departing from the true scope and spirit of the invention.

Claims (9)

1. a kind of for removing the filter media of organic in air and inorganic pollution, it includes activated carbon medias to have first Charge and the chemical reagent dipping for being used to remove formaldehyde in air and/or other aldehyde, while utilize the activated carbon media Remove organic compound.
2. the filter media of claim 1, wherein the chemical reagent includes the unimolecule stratification with water-soluble tertiary amine It learns and handles the activated carbon media.
3. the filter media of claim 1, wherein the pH that the activated carbon media includes changing water inlet pH value changes material Material so that microorgranic contaminant present in water inlet maintains the second charge with the first opposite charge of the activated carbon media.
4. the filter media of claim 1, wherein the activated carbon media includes solid composite filter device medium, fiber Paper delivery medium or nanofiber filter medium.
5. the filter media of claim 2, wherein the water-soluble tertiary amine includes three (methylol) aminomethanes.
6. the filter media of claim 2, wherein the activated carbon media includes the first charge and by chemical reagent It impregnates to remove sulfur dioxide, nitrogen dioxide and/or hydrogen sulfide.
7. a kind of for removing the formation process of the filter media of formaldehyde in air and/or other aldehyde, the technique includes：
With three (methylol) aminomethane impregnated activated carbons；
Substrate web (fibrillated nanofiber) is provided；
The active impregnated carbon is deposited on thermoplastic adhesives particle on the substrate web；And
It will be on the active impregnated carbon and the thermoplastic adhesives particle fusion to the substrate web.
8. including adding second substrate layer, it is fine to be bonded to the substrate by thermoplastic adhesives for the technique of claim 7 Dimension is online.
9. the technique of claim 8, wherein the second substrate layer includes polypropylene, polyester and/or nylon substrate.
CN201680062078.3A 2015-10-22 2016-10-21 Treated activated carbon for removal of organic and inorganic contaminants from air Active CN108136311B (en)

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US201562244776P 2015-10-22 2015-10-22
US62/244,776 2015-10-22
PCT/US2016/058198 WO2017070526A1 (en) 2015-10-22 2016-10-21 Treated activated carbon for removal of airborne organic and inorganic contaminants

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109289916A (en) * 2018-10-24 2019-02-01 山西新华化工有限责任公司 High pressure water heat load method prepares purifying formaldehyde MATERIALS METHODS
CN115279477A (en) * 2019-12-23 2022-11-01 空气技术集团有限公司 Filter and method for removing aldehyde VOC from indoor air

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