WO2020065035A1 - Procédé et composition pour neutraliser ou réduire des odeurs ou des gaz nocifs - Google Patents

Procédé et composition pour neutraliser ou réduire des odeurs ou des gaz nocifs Download PDF

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WO2020065035A1
WO2020065035A1 PCT/EP2019/076243 EP2019076243W WO2020065035A1 WO 2020065035 A1 WO2020065035 A1 WO 2020065035A1 EP 2019076243 W EP2019076243 W EP 2019076243W WO 2020065035 A1 WO2020065035 A1 WO 2020065035A1
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composition
pectins
acid
gaseous
highly
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PCT/EP2019/076243
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German (de)
English (en)
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Trine Huusfeldt
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Trine Huusfeldt
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    • 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
    • B01D53/14—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 absorption
    • B01D53/1487—Removing organic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/048—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating air treating gels
    • 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
    • B01D53/14—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 absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/58—Ammonia
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/202—Alcohols or their derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/50—Combinations of absorbents
    • B01D2252/504—Mixtures of two or more absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/60—Additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0266—Other waste gases from animal farms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0275—Other waste gases from food processing plants or kitchens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the present invention relates to methods and compositions for use in neutralizing or reducing harmful odors or gases
  • Ammonia is a serious problem, especially in agriculture, because a large part of the ammonia emissions in agriculture is caused by livestock, especially cattle. Another source of ammonia arises when manure is brought into fields, which is why the ammonia load is highest at the beginning of spring and in autumn after the harvest. In pig and poultry farming, on the other hand, most emissions are generated directly in the barn. The measures implemented so far, such as targeted feeding or structural changes, can only slightly reduce such emissions.
  • ammonium contained in manure in the total nitrogen (N) is around 15 percent for manure, about 50 percent for liquid manure and almost 95 percent for liquid manure.
  • ammonium is converted to ammonia (NH 3 ) and can escape into the atmosphere. Ammonia also emits from large agricultural livestock facilities.
  • synthetic analogs NH 4 ) contained in manure in the total nitrogen (N) is around 15 percent for manure, about 50 percent for liquid manure and almost 95 percent for liquid manure.
  • Nitrogen fertilizers can be used especially when using ammonium-forming
  • Urea fertilizers or ammonium-containing AHL solutions escape larger amounts of ammonia, i.e. up to 15 percent of the total nitrogen content.
  • the amount of ammonia loss during spreading depends on numerous soil and weather conditions. A high pH value, a low buffer capacity, low
  • Ammonia is considered to be an indirect greenhouse gas that promotes the formation of greenhouse gases and fine dust.
  • the nitrogen contained in the ammonia in the soil can be converted into extremely climate-damaging laughing gas (nitrous oxide; N 2 0).
  • Laughing gas (N 2 0) is a highly effective greenhouse gas, the climate impact of which is 265 times as strong as that of carbon dioxide (C0 2 ).
  • N 2 0 emissions are emissions from agricultural soils.
  • the level of these emissions is largely determined by nitrogen management: the spreading of organic and mineral fertilizers as well as the
  • Hydrogen sulfide is a serious problem, as these emissions have an impact on the climate in the house and thus have a significant impact on the well-being and performance of farm animals.
  • the well-being of the animals depends crucially on the climate in the barn. Dairy cows in particular spend almost their entire life in the barn these days. Today's high
  • the excrement is the starting substrate for the
  • Ammonia release the formation potential for NH 3 on the one hand by the type and amount the excrement, on the other hand is influenced by the extent of nitrogen conversion.
  • pig fattening it can be assumed that with an average daily nitrogen intake of 55 grams, only about 30% is retained in the body, but approximately 50% is excreted primarily as urea with urine and 20% as organically bound bacterial protein with faeces (Aarnink, 1997; Arogo et al., 2001; Kirchgässner et al., 1991 a).
  • the urea is broken down into NH 3 and C0 2 by hydrolytic cleavage with the aid of the catalyzing enzyme urease. Ammonification begins about 20 to 60 minutes after urine excretion (Aarnink et al., 1992) and is usually complete after two hours (Montenni & Erisman, 1998). The speed and completeness of its conversion will depend on the amount of
  • the urease enzyme is contained in the faeces and leads to an increasing inoculation of surfaces with urease-active bacteria in the barn.
  • the speed and expression of the urease enzyme is contained in the faeces and leads to an increasing inoculation of surfaces with urease-active bacteria in the barn.
  • gaseous ammonia and other gaseous compounds contribute
  • Hydrogen sulfide forms an explosive mixture with air and is acutely toxic in concentrations above 30 ppm to humans or other mammals.
  • the maximum permissible workplace concentration is ⁇ 5.0 ppm (DFG, 2014).
  • H 2 S is the cause of odors that are unpleasant for humans, which complicate the working conditions of people in such locations or rooms and thus represent a nuisance, since the odor threshold is 0.0001 to 0.03 mg / Nm 3 air.
  • DE 31 42 254 A1 describes a composition for eliminating odors, including ammonia odors using oxo acids of sulfur or phosphorus, it also being possible to use organic acids, for example formic acid, acetic acid, propionic acid, lactic acid and the like.
  • EP 1140 222 B1 uses an aqueous concentrated composition for cleaning and deodorization of air by atomization, which consists of fractions of certain salts of undecylenic acid and a certain oily component.
  • WO 2013 041 384 A1 describes a composition in which a low-ester pectin is used in an acetic acid solution.
  • the use of highly methylated or highly esterified pectins in a process for neutralizing or reducing harmful gas emissions is not described.
  • the object of the present invention is an alternative method and to provide a composition with which neutralization or reduction of harmful gases, in particular gaseous ammonia, gaseous
  • Hydrogen sulfide, gaseous nitrogen oxides and / or gaseous sulfur dioxide is possible. This object is achieved by a method with the features of claim 1 and the composition used therein. Preferred embodiments of the invention can be found in the subclaims.
  • Nitrogen oxides (NOx) and / or gaseous sulfur dioxide (S0 2 ) are reduced or at least significantly reduced, which has a positive effect on the indoor climate in closed systems and on the formation of undesirable greenhouse gases (e.g. when spreading liquid manure).
  • composition which is able to neutralize or at least significantly reduce gaseous ammonia, gaseous hydrogen sulfide, gaseous nitrogen oxides and / or gaseous sulfur dioxide.
  • the composition according to the invention comprises the following basic components: a) pectins or a mixture of pectins,
  • the composition comprises highly esterified or highly methylated pectins or a mixture of pectins which
  • the concentration ratios and the addition of other substances or substances in the composition vary.
  • there are differences in an internal application e.g. in stables
  • free space e.g. when spreading liquid manure
  • pectin according to the invention or the mixture of pectins are plant polysaccharides or polyuronides which essentially consist of ⁇ -1,4-glycosidically and / or ⁇ -1,4-glycosidically linked D-galacturonic acid units which comprise the Form the backbone of the molecule.
  • the pectin therefore predominantly has the following basic structure consisting of a-D-galacturonic acid units:
  • the invention also includes esterified, acetylated or pectin derivatives based thereon which are based on neutral sugars.
  • the pectins or polysaccharides used in the composition must be able to bind water.
  • the NH 3 taken up in the water is bound in a polymeric matrix as NH 4+ , which prevents emission.
  • Pectins which have been isolated from plant constituents, for example from plant stems, plant flowers or plant leaves, are preferably used. In a preferred variant, pectins are made from citrus fruits, from sugar beet or
  • Fruit stems obtained from sunflowers, preferably from the peel of apples, quinces, oranges, apricots, cherries.
  • pectins from other sources for example from vegetables such as carrots, are also included in the present invention.
  • pectins which can be used according to the invention also include protopectins, modified pectins and substances, substances or compounds which act analogously to pectins and which, in connection with the neutralization of ammonia or hydrogen sulfide, achieve the same technical effect as natural pectins.
  • protopectins modified pectins and substances, substances or compounds which act analogously to pectins and which, in connection with the neutralization of ammonia or hydrogen sulfide, achieve the same technical effect as natural pectins.
  • Pectins can also be used as preferred variants, in which the 1,2 bonds are substituted or interrupted by a neutral sugar, for example with aL-rhamnose.
  • pectins are also included, the side chains of which are substituted with sugars, for example with arabinose, galactose or xylose.
  • pectins in which hydroxyl groups on the C 2 or C 3 atom of the
  • Galacturon units are acetylated or substituted by other neutral sugars such as D-galactose, D-xylose, L-arabinose or L-rhamnose.
  • esterifications e.g. in the case of carboxy groups of polygalacturonic acid, for example esterifications with methanol.
  • esterifications with methanol for example esterifications with methanol.
  • all esterified or acetylated pectin variants are also covered by the present invention, for example highly methylated or highly esterified pectins, low methylated and low-esterified pectins, pectic acids and aminopectins.
  • organic acids used according to the invention their salts or mixtures of organic acids (or their salts) preferably originate from natural sources.
  • Preferred organic acids are formic acid, acetic acid, propionic acid, lactic acid, and derivatives derived or modified therefrom. Furthermore, fixed
  • organic acids such as benzoic acid, ethylenediaminetetraacetic acid, maleic acid,
  • Citric acid malonic acid, succinic acid, malic acid, adipic acid, fumaric acid and
  • the like can be used for the composition according to the invention.
  • composition according to the invention can also contain an inorganic acid,
  • the organic acid or the mixture is more organic
  • Acids at least one inorganic acid in the composition, selected from the group consisting of carbonic acid, phosphoric acid, sulfuric acid and / or hydrochloric acid, and mixtures thereof.
  • the invention also includes special salts of inorganic acids, for example MgSO 4 , which are preferably used at a content of> 20 ppm NH 3 .
  • the invention in addition to the pectin or the mixture of pectins, the invention
  • Composition also contain other polysaccharides, such as alginates, starch or mixtures thereof, especially those that are soluble in an acidic environment. Artificial polymers can also be used. Because it is about building a polymer grid with the pectins, polysaccharides or artificial polymers, which in turn improves or supports the binding capacity of NH 3 and the sulfur compounds and only releases them again when they are broken down by microorganisms.
  • the composition according to the invention is preferably based entirely on
  • composition according to the invention comprises one or more of the following additional components: c) at least one inorganic acid or salts thereof,
  • Preferred polysaccharides are starch, e.g. obtained from potatoes, cassava, cereals. Depending on the application, amounts of zeolite or bentonite can also be added.
  • the composition is aqueous
  • composition especially as an aqueous dispersion, before, with a proportion of
  • composition is aqueous
  • composition especially as an aqueous dispersion, before, with a proportion of
  • pectin or a pectin mixture optionally with additional polysaccharides (e.g. alginates or starch) and / or a thickener,
  • the water used is preferably distilled water or another solvent in which the pectins contained in the composition and the organic and / or inorganic acids used therein are miscible with one another.
  • the pectins with a proportion of at least 10 wt .-%, preferably at least 15 wt .-% and the acids with at least 10 wt .-%, preferably between 15 and 25 wt .-% in the
  • composition used the remaining content for 100 wt .-% is supplemented with distilled water or another solvent.
  • composition according to the invention is applied to the object to be treated in aqueous, viscous or solid form, for example by treating the object by spraying, atomizing, applying, introducing or mixing.
  • aqueous, viscous or solid form for example by treating the object by spraying, atomizing, applying, introducing or mixing.
  • interiors for example stables for keeping livestock, it is advisable to atomize or spray the air in the room, to use washers or to apply it to the walls of the house.
  • the composition can be introduced, for example, in straw, wood pellets or rock.
  • composition according to the invention is suitable wherever gaseous ammonia, gaseous hydrogen sulfide, gaseous nitrogen oxides and / or gaseous sulfur dioxide are formed, in particular also in those objects in which unpleasant smells for people are to be eliminated.
  • Industrial plants, sewage treatment plants and closed buildings for example stables for animal husbandry, for example when fattening or keeping dairy cows, pigs, poultry, rabbits, cats, guinea pigs, dogs or horses etc. are treated.
  • the composition can also be applied in aqueous, solid, viscous or gaseous form outside of closed rooms, for example if the object is waste water. Waste water from a sewage treatment plant or sewage sludge as well as liquid manure or municipal or industrial waste can also be treated with the composition.
  • the composition is preferably applied in an open or at least partially closed room, in which gas emissions, for example high ammonia or hydrogen sulfide concentrations, are to be expected, such as stables, dung, toilets or containers which transport substances containing ammonia.
  • a special nozzle system or nebulization system is preferably used to control the atomize composition according to the invention.
  • the device is preferably installed directly in the barn and, if necessary, can atomize the active substance composition in the room as an aerosol.
  • the interior is preferably lowered by approximately 2 ° C., which increases the binding capacity of the composition for the NH 3 -, H 2 S, NOx and / or S0 2 gases.
  • the formulation according to the invention can also be applied in a basin, for example a clarifier in a sewage treatment plant.
  • application of the composition in a landfill and / or an open space is also possible, for example as part of the discharge of liquid manure into a field or open-air toilets.
  • the ammonia pollution is regularly very high, so that an immediate neutralization of the ammonia in the manure can make a significant contribution to reducing the ammonia emissions and thus the indirect formation of greenhouse gases.
  • the invention thus encompasses any application on an object, the object being a solid (including solid surfaces), a gas and / or a liquid. Viscous substances are also included, e.g. Gels or gel papers.
  • the composition is preferably sprayed onto a solid substrate in the form of an aqueous dispersion.
  • the application can also be added in a washer, with which a complete neutralization of the NH 3 , H 2 S, NOx and / or S0 2 gases and the odors can be achieved. This application is particularly suitable in all forms of stables.
  • the composition is preferably sprayed onto a solid substrate in the form of an aqueous dispersion.
  • the composition can also contain an additional foam-forming agent, preferably at least one water-soluble foam-forming natural protein.
  • an additional foam-forming agent preferably at least one water-soluble foam-forming natural protein.
  • This variant can be used, for example, in sewage treatment plants to retain or neutralize the NH 3 , H 2 S, NOX and / or S0 2 gases.
  • the dispersion forms a sufficiently thick foam layer, which, like a sponge or film, absorbs the questionable gases and chemically neutralizes them.
  • the composition is used in a viscous form, so that it can also be applied to vertical surfaces, for example on the walls of a stable, and adheres like a film. All conventional agents known to those skilled in the art, for example alkyl polyglycosides or conventional protein, are suitable as foam formers.
  • the proportion of foam images is between 0 and a maximum of 10% by weight of the composition, preferably less than 7.5% by weight, preferably between 1 and 5% by weight,
  • the composition preferably contains a binder (also called: thickener, thickener).
  • Thickeners are substances that are primarily able to bind water.
  • thickeners are linear or branched macromolecules (such as polysaccharides or proteins) that can interact with each other through intermolecular interactions such as hydrogen bonds, hydrophobic interactions, or ionic relationships.
  • Extreme thickeners are layered silicates (bentonites, hectorites) or hydrated Si0 2 particles, which are dispersed as particles and can bind water in their solid-like structure or can interact with each other due to the described interactions.
  • Preferred thickeners are guar, locust bean gum, carrageenan, cellulose ether, polyvinyl alcohol and silicates.
  • a mixture of a butadiene / acrylonitrile copolymer, a polyisocyanate and an inhibitor for example acetic acid
  • an inhibitor for example acetic acid
  • acetic acid can prevent premature reaction of the butadiene / acrylonitrile copolymers with the polyisocyanate.
  • other polymers capable of binding the active components of the composition can also be used.
  • Hydrogen sulfide is also removed from malodorous substances, making the composition suitable for deodorising locations with malodorous odors.
  • malodorous substances For example, open-air toilets, urinals, bridge underpasses, subway stations, sports facilities, fitness studios or stairs in hallways etc. come into consideration.
  • gaseous NH 3 , H 2 S, NOx and / or S0 2 can also be formed.
  • the composition can also be a binder
  • Solidifying agents are added so that they act as a gel on surfaces, for example floors or walls of the object to be treated can be applied.
  • the composition is provided as a gel, granules, liquid or hardened solid for treating the object.
  • the granules can be used in the form of small grains as a component of cat litter, as a component of baby diapers or as an additive for a barn floor.
  • the composition can also be applied to straw, wood shavings, cat litter or other stable floor coverings.
  • the present invention preferably relates to a method for neutralizing or reducing gaseous ammonia, gaseous hydrogen sulfide, gaseous nitrogen oxides and / or gaseous sulfur dioxide in stables for keeping livestock.
  • the composition is particularly suitable for improving the
  • composition according to the invention provides important contribution to avoiding environmental emissions, which are caused, for example, by the
  • composition according to the invention is thus suitable as a climate-effective means of reducing the emission of gases such as ammonia as an indirect greenhouse gas into the atmosphere.
  • the minimum required air exchange rate (required air mass flow) is based on the heat flow, water vapor and carbon dioxide balance (DIN 18910-1, 2004), whereby it is generally determined by the heat balance in the summer situation and by the water vapor balance in the winter situation .
  • DIN 18910-1, 2004 water vapor and carbon dioxide balance
  • T racer ratio method Controlled release of a tracer (GH 1 ) and measurement of the concentrations of the tracer and the substances of interest inside and outside the building (mg m 3 ).
  • the emission flow from the product of the air volume flow and the difference in the gas concentration inside and outside the building, since the measurement of the air volume flow also provides a parameter for characterizing the house climate.
  • the determination of the air volume flow of ventilated buildings is possible with different methods (e.g. accounting method, tracer method, direct Airflow measurement, indirect airflow measurement).
  • the choice of the suitable measurement method and the determination of the individual parameters are familiar to the person skilled in the art in order to determine the effect of the composition according to the invention on the emission of NH 3 , H 2 S, NOX and / or S0 2 gases.
  • composition according to the invention is in several
  • the present invention relates not only to a method of neutralization or
  • the composition according to the invention contains an organic acid with preferably 1 to 9 carbon atoms, preferably selected from the group consisting of acetic acid, formic acid, citric acid, lactic acid, propionic acid and derivatives modified therefrom.
  • the composition according to the invention can comprise at least one inorganic acid, preferably phosphoric acid, sulfuric acid, carbonic acid or hydrochloric acid, instead of the organic acid or in addition to the organic acid.
  • the present invention also relates to the use of such a composition for neutralizing or reducing harmful gases, in particular
  • gaseous ammonia NH 3
  • H 2 S hydrogen sulfide
  • NOx nitrogen oxide
  • S0 2 sulfur dioxide
  • composition according to the invention is also suitable for controlling odors caused by NH 3 and / or H 2 S gas, in particular in locations where unpleasant smells predominate, for example in sanitary facilities, toilets, sewers, sewage treatment plants etc.
  • the composition according to the invention is also suitable for controlling odors caused by NH 3 and / or H 2 S gas, in particular in locations where unpleasant smells predominate, for example in sanitary facilities, toilets, sewers, sewage treatment plants etc.
  • Composition according to the invention also as a deodorant or perfume.
  • Figure 1 describes the test results for the determination of ammonia in the stables of a rabbit farm.
  • the experiments were carried out with adult animals (shortly before slaughter) of a rabbit breed.
  • the log data for the example tested NH 3 gas in the interior of the stables black bars
  • in the outside air hatchched bars
  • the other gases such as H 2 S, NOx and / or S0 2 could be reduced (not shown).
  • Figure 2 shows effectiveness studies in a comparison between highly esterified, highly methylated (HM) and low esterified, low methylated (LM) pectins.
  • HM highly methylated
  • LM low methylated
  • Ammonia, dust, odor and physical parameters and measurements were taken in accordance with DIN 15259 in rabbit, horse and pig stables.
  • the FTIR method was used as the measurement method, carried out by LUFA Nord-West (DE).
  • the sampling facilities were carried out according to VDI 2066, the measurements according to DIN EN 13284-1.
  • the data shows that highly esterified, highly methylated pectins (DE 73; HM) have a higher efficiency than low esterified, low methylated pectins (DE 20-30; LM).
  • the comparative data show that products 4 - 6 with high
  • Figure 3 shows an example of the effectiveness of the composition based on the measurement of ammonia in animal stalls.
  • the NH 3 emissions were measured in different pig stables, each with 80 animals.
  • Citric acid (Merck, item number A15729025), 5 ml sulfuric acid (Merck, Article no. 23145000, conc. 62%) are added and stirred briefly for 10 seconds. 4. The remaining water (10 ml) is added and briefly stirred for 5 seconds.
  • a pectin mixture (Fresh RB and orange peel) is used, which contains highly esterified pectins.
  • Composition can be fed directly to a room air system and has been shown to reduce gaseous NH 3 , H 2 S, NOx and S0 2 in the room air. This was tested in stables for cattle farming and
  • the use of a combination of a mixture of highly esterified pectins and an organic acid is therefore extremely effective.
  • FIG. 1 The better effectiveness of the highly esterified or highly methylated pectins compared to low-esterified or low-methylated pectins can be seen in FIG. 2.
  • composition according to the invention is produced here as follows:
  • Citric acid (Merck, article number A15729025), 5 ml sulfuric acid (Merck, article number 23145000, conc. 62%) are added and stirred briefly for 10 seconds.
  • Spreading can be mixed with the manure. Alternatively, it can be sprayed directly onto the surface of the landfill.
  • composition for neutralizing NH 3 , H 2 S, NOx and S0 2 for
  • composition according to the invention is produced here as follows:
  • Citric acid (Merck, item number A 15729025) are added and stirred briefly for 10 seconds.
  • Composition for neutralizing NH 3 , H 2 S, NOx and S0 2 when spreading liquid manure and on landfills to form a foam layer is provided.
  • composition according to the invention is produced as follows:
  • Citric acid (Merck, article number A 15729025) are added and stirred briefly for 10 seconds.
  • Foam agent added.
  • compositions according to the invention can be used with generally known pressure sprayers or foam sprayers. Alternatively, nozzle systems or nebulization systems can also be used.

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Abstract

La présente invention concerne des procédés et des compositions destinés à être utilisés pour neutraliser ou réduire des odeurs ou des gaz nocifs, en particulier d'ammoniac (NH3) et/ou de sulfure d'hydrogène (H2S) et/ou d'oxyde d'azote (NOx) et/ou de dioxyde de soufre (SO2). Le procédé est particulièrement adapté pour éviter des émissions de gaz nocifs pour l'environnement dans des bâtiments pour les bêtes, dans des installations ou encore lors de l'épandage d'engrais liquide sur des terres agricoles.
PCT/EP2019/076243 2018-09-27 2019-09-27 Procédé et composition pour neutraliser ou réduire des odeurs ou des gaz nocifs WO2020065035A1 (fr)

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DE102018123897.5 2018-09-27
DE102018123897.5A DE102018123897A1 (de) 2018-09-27 2018-09-27 Verfahren und Zusammensetzung zur Neutralisierung oder Reduktion von gasförmigem Ammoniak (NH3) und Schwefelwasserstoff (H2S)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2023104523A1 (fr) * 2021-12-10 2023-06-15 Bayerische Motoren Werke Aktiengesellschaft Accumulateur de batterie comprenant un dispositif de sécurité et procédé de déclenchement du dispositif de sécurité
CN117427481A (zh) * 2023-08-24 2024-01-23 葫芦岛康达环保工贸有限公司 一种基于纳米二氧化硅改性的除臭剂及其制备方法

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US124041A (en) 1872-02-27 Improvement in deodorizing and fertilizing materials
US127383A (en) 1872-05-28 Improvement in piano-fortes
US705462A (en) 1901-12-16 1902-07-22 George Harvey Smith Fertilizer and method of making same.
DE2422574A1 (de) 1974-05-09 1975-11-20 Collo Gmbh Schuettstoff-filtermaterial, insbesondere zur entfernung unangenehmer gerueche aus der luft, sowie verfahren zu seiner herstellung
US3989498A (en) 1975-06-23 1976-11-02 H. Gordon Walker Method of odor control
DE3142254A1 (de) 1980-04-02 1982-08-26 Uniscope Inc Elimination of odors from waste material
EP1140222A1 (fr) 1998-12-15 2001-10-10 Daniel Henri Eclache Assainissement et desodorisation de l'air par brumisation
WO2003045134A2 (fr) * 2001-11-21 2003-06-05 Grain Processing Corporation Litiere pour animaux domestiques, son procede de preparation, et procede d'elimination de dechets animaux
US20120251484A1 (en) * 2011-03-31 2012-10-04 Cp Kelco Aps Cold prepared gel and method for making same
WO2013041384A1 (fr) 2011-09-19 2013-03-28 Cp Kelco Aps Gels acides à faible teneur en matières solides et procédés de préparation associés
FR3016522A1 (fr) * 2014-01-23 2015-07-24 Clean Farm Internat

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Publication number Priority date Publication date Assignee Title
US124041A (en) 1872-02-27 Improvement in deodorizing and fertilizing materials
US127383A (en) 1872-05-28 Improvement in piano-fortes
US705462A (en) 1901-12-16 1902-07-22 George Harvey Smith Fertilizer and method of making same.
DE2422574A1 (de) 1974-05-09 1975-11-20 Collo Gmbh Schuettstoff-filtermaterial, insbesondere zur entfernung unangenehmer gerueche aus der luft, sowie verfahren zu seiner herstellung
US3989498A (en) 1975-06-23 1976-11-02 H. Gordon Walker Method of odor control
DE3142254A1 (de) 1980-04-02 1982-08-26 Uniscope Inc Elimination of odors from waste material
EP1140222A1 (fr) 1998-12-15 2001-10-10 Daniel Henri Eclache Assainissement et desodorisation de l'air par brumisation
WO2003045134A2 (fr) * 2001-11-21 2003-06-05 Grain Processing Corporation Litiere pour animaux domestiques, son procede de preparation, et procede d'elimination de dechets animaux
US20120251484A1 (en) * 2011-03-31 2012-10-04 Cp Kelco Aps Cold prepared gel and method for making same
WO2013041384A1 (fr) 2011-09-19 2013-03-28 Cp Kelco Aps Gels acides à faible teneur en matières solides et procédés de préparation associés
FR3016522A1 (fr) * 2014-01-23 2015-07-24 Clean Farm Internat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023104523A1 (fr) * 2021-12-10 2023-06-15 Bayerische Motoren Werke Aktiengesellschaft Accumulateur de batterie comprenant un dispositif de sécurité et procédé de déclenchement du dispositif de sécurité
CN117427481A (zh) * 2023-08-24 2024-01-23 葫芦岛康达环保工贸有限公司 一种基于纳米二氧化硅改性的除臭剂及其制备方法
CN117427481B (zh) * 2023-08-24 2024-04-09 葫芦岛康达环保工贸有限公司 一种基于纳米二氧化硅改性的除臭剂及其制备方法

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