DK176992B1 - A method and apparatus for reducing slurry emissions - Google Patents

A method and apparatus for reducing slurry emissions Download PDF

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Publication number
DK176992B1
DK176992B1 DKPA200800572A DKPA200800572A DK176992B1 DK 176992 B1 DK176992 B1 DK 176992B1 DK PA200800572 A DKPA200800572 A DK PA200800572A DK PA200800572 A DKPA200800572 A DK PA200800572A DK 176992 B1 DK176992 B1 DK 176992B1
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slurry
emission
foam
subset
emission reducing
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DKPA200800572A
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Danish (da)
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Morten Toft
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Morten Toft
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/01Deodorant compositions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L11/00Methods specially adapted for refuse
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Treatment Of Sludge (AREA)
  • Physical Water Treatments (AREA)

Abstract

Opfindelsen indeholder en metode til at reducere emission fra gylle i en gyllekanal, en gylle lagertank eller en kombination deraf. Metoden indeholder følgende trin At udtage en delmængde af gyllen fra gyllekanalen og / eller fra gylle lager tanken og Skabe en emissionsreducerende substans af delmængden, eller en del af delmængden og Distribuere den emissionsreducerende substans ind i gylle kanalen og placer den på mindst en del af den resterende gylle i gyllekanalen og / eller i gylle lager tanken for at skabe et emissionsreducerende lag Opfindelsen vedrører et gyllekanal system (fig. 1-8) og lagertanke (10,12) for at udfører en metode ifølge de beskrevne patentkrav. Gyllekanalen (8) består af en stald med et gyllekanalsystem (1-8) med en fortank og en lagertank (10,12) til gylle (1), et rørledningssystem (9-16) til at transportere gylle (I) fra kanal, fortank og lagertank (8, 10, 12) og tilbage til et eller flere af oprindelsesstederne (8, 10, 12) for at placere et emissionsreducerende lag (5) på mindst en del afgyllen (1) Endvidere relateres opfindelsen til brug af en metode til at reducerer emission fra gylle (1).The invention provides a method for reducing slurry emission in a slurry channel, slurry storage tank or a combination thereof. The method contains the following steps To take a subset of the slurry from the slurry channel and / or from the slurry storage tank and Create an emission reducing substance of the slurry or part of the slurry and Distribute the emission reducing substance into the slurry channel and place it on at least part of the slurry. The invention relates to a slurry channel system (Figs. 1-8) and storage tanks (10,12) to perform a method according to the described claims. The manure duct (8) consists of a stable with a manure duct system (1-8) with a front tank and a storage tank (10,12) for manure (1), a pipeline system (9-16) for transporting manure (I) from duct, pre-tank and storage tank (8, 10, 12) and back to one or more of the sites of origin (8, 10, 12) to place an emission reducing layer (5) on at least part of the slurry (1) Furthermore, the invention relates to the use of a method to reduce manure emissions (1).

Description

i DK 176992 B1 ain DK 176992 B1 a

En metode og et apparat til at reducere emission fra gylle Baggrund for opfindelsen 5 Denne opfindelse relaterer til en metode og apparat til at reducere emission fra gylle i en gylle kanal, en gylle lager tank eller en kombination deraf.Background of the Invention 5 This invention relates to a method and apparatus for reducing slurry emissions in a slurry channel, a slurry storage tank or a combination thereof.

Beskrivelse af opfindelsen 10 Det er kendt at gylle lugter dårligt specielt efter at være rørt op i gyllekanaler for at blive holdt flydende eller for transport til gylle lagertank, før udbringning på jorden, for eksempel et landbrugsareal.DESCRIPTION OF THE INVENTION It is known that slurry smells bad especially after being stirred up in slurry channels to be kept liquid or transported to slurry storage tank prior to application to the soil, for example an agricultural area.

Yderligere er det kendt, at gyllens gødningseffekt reduceres når gyllen bliver rørt op 15 som følge af fordampning af primært ammoniak.Further, it is known that the manure effect of the slurry is reduced when the slurry is stirred up 15 due to the evaporation of primary ammonia.

En brochure vedrørende smellFIGHTER fra firmaet Infarm beskriver således et apparat og en fremgangsmåde til fjernelse af lugt fra gylle. Fra stalden udtages en mængde gylle til en buffertank, hvor gyllen behandles ved separation via en 20 mekanisk/kemisk proces, lugtbehandling ved hjælp af ozon samt en pH-sænkning for at binde ammoniak. En del af den lugtreducerede, ammoniakstabile væske ledes retur til stalden, mens den resterende del opbevares og udbringes på marken. Dette reducerer lugt og ammoniakfordampning fra gyllen i stalden og på marken.Thus, a booklet on smellFIGHTER from the company Infarm describes an apparatus and method for removing odor from manure. From the stable, a quantity of slurry is taken to a buffer tank, where the slurry is treated by separation via a mechanical / chemical process, odor treatment by ozone and a pH reduction to bind ammonia. Part of the odor-reduced, ammonia-stable liquid is returned to the stable, while the remainder is stored and applied to the field. This reduces odor and ammonia evaporation from the manure in the barn and in the field.

25 NL 1000616 beskriver et anlæg til mindskning af lugtgener fra gylle. Skum dannes i en skumgenerator og sprøjtes efterfølgende ud over den ubehandlede gylle under staldens gulv. Skummet ligger sig som en beskyttende kappe over den ubehandlede gylle og forhindrer herved emission af ammoniak og lugtgener.25 NL 1000616 describes a plant for reducing manure odors from manure. Foam is formed in a foam generator and subsequently sprayed over the untreated slurry beneath the stable floor. The foam lies as a protective sheath over the untreated slurry, thereby preventing the emission of ammonia and odor nuisance.

ϊ 2 DK 176992 B1ϊ 2 DK 176992 B1

Fra patent No 3966450 er det kendt at blande syre i gyllen for at sænke pH værdien i gyllen og derved skabe en kemisk reaktion, der transformere ammoniak til ammonium, der er en saltform og derved ikke fordamper.From patent No. 3966450 it is known to mix acid in the slurry to lower the pH value in the slurry, thereby creating a chemical reaction that transforms ammonia into ammonium which is a salt form and thereby does not evaporate.

Det tager imidlertid en del kræfter at omrøre gyllen og en stor mængde syre til at 5 sænke pH værdien nok til at opnå denne kemiske reaktion og derfor har systemet høje driftsomkostninger.However, it takes some effort to stir the slurry and a large amount of acid to lower the pH enough to achieve this chemical reaction and therefore the system has high operating costs.

I Danmark og andre lande, er det kendt at miljølovgivningen foreskriver flydelag over gylle lagertanke, for at begrænse fordampningen og den dårlige lugt fra gyllen.In Denmark and other countries, it is known that environmental legislation prescribes floating layers over slurry storage tanks, to limit evaporation and the bad smell from the slurry.

10 I gyllekanalen, er det ikke muligt at etablere flydelag da gyllen skal holdes flydende for at kunne blive pumpet til lagertanken.10 In the slurry channel, it is not possible to establish float layers as the slurry must be kept liquid in order to be pumped to the storage tank.

Et formål med opfindelsen er derfor at skabe et apparat og en metode til at reducere omkostningerne ved at forhindre emission fra gyllekanaler, gylle fortanke og gylle 15 lagertanke.It is therefore an object of the invention to provide an apparatus and method for reducing the cost of preventing emission from slurry channels, slurry tanks and slurry storage tanks.

OpfindelsenThe invention

En metode til at reducerer emission fra gylle i en gylle kanal, en gylle lagertank eller en kombination deraf. Metoden består af følgende 20 • At udtage en delmængde af gyllen fra gyllekanalen og / eller fra gylle lager tanken og • Skabe en emissionsreducerende substans af delmængden, eller en del af delmængden og 25 · Distribuerer den emissionsreducerende substans ind i gylle kanalen og placere den på mindst en del af den resterende gylle i gyllekanalen og / eller i gylle lagertanken for at skabe et emissionsreducerende lag.A method of reducing slurry emission in a slurry channel, slurry storage tank or a combination thereof. The method consists of the following 20 • To extract a subset of the slurry from the slurry channel and / or from the slurry storage tank and • Create an emission reducing substance of the slurry or part of the slurry and 25 · Distribute the emission reducing substance into the slurry channel and place it on at least a portion of the remaining slurry in the slurry channel and / or in the slurry storage tank to create an emission reducing layer.

3 DK 176992 B13 DK 176992 B1

At skabe et emissionsreducerende lag af gyllen er fordelagtigt, fordi emissionen bliver reduceret ved at kun den delmængde af gyllen der behandles, skaber en omkostning, men reduktionen af emission opnås for hele mængden af gyllen i kanalen, samt ved at materialet der reducerer emissionen er lavet af gyllen der altid 5 er til rådighed.Creating an emission reducing layer of the slurry is advantageous because the emission is reduced by only the subset of slurry being treated, creating a cost, but the reduction of emission is achieved for the entire amount of slurry in the channel, as well as the material reducing the emission is made. of the slurry there are always 5 available.

Yderligere bliver størstedelen af gyllen i kanalen ikke rørt op, og dermed sikres at emissionen fra gyllens overflade ikke øges. Ved at placere den behandlede delmængde oven på den ubehandlede mængde, sikres at emission fra gyllen 10 yderligere reduceres.Furthermore, most of the slurry in the channel is not stirred, thus ensuring that the emission from the slurry surface is not increased. By placing the treated subset on top of the untreated amount, it is ensured that emission from slurry 10 is further reduced.

Yderligere sikres med denne metode, at gødningseffekten fra gyllen øges og at lugt fra gyllen reduceres.Furthermore, this method ensures that the manure effect from the manure is increased and that the odor from the manure is reduced.

15 Yderligere, er det ved hjælp af tilsætning af additiver når det emissionsreducerende lag skabes, muligt at optimere gødningsværdien i gyllen, således at den kan anvendes som en komplet gødskning til agerbrug, og udbringning af andre gødningsmidler efter anvendelsen af gylle undgås.Further, by adding additives when creating the emission reducing layer, it is possible to optimize the fertilizer value in the slurry so that it can be used as a complete fertilizer for arable use and application of other fertilizers after the use of slurry is avoided.

20 Det skal understreges at definitionen af “gylle” skal forstås som enhver flydende animalsk gødning, organisk gødning, slam eller lignende substanser i form af primært vandopløste mineralske substanser.20 It should be emphasized that the definition of "slurry" must be understood as any liquid animal fertilizer, organic fertilizer, sludge or similar substances in the form of primarily water-soluble mineral substances.

Det skal yderligere understreges at definitionen af “emissions reducerende lag” skal 25 forstås som enhver form for låg, dække, membran eller andet der er egnet til at skabe et lag oven på gyllen for at reducere emission fra gyllen, hvor nævnte emission primært er emission af ammoniak, men også emission af andre nærings- eller gødningsstoffer fra gyllen, eller emission der tilskynder den generelt dårlige lugt fra gylle eller emission der tilskynder drivhusgas eller anden atmosfærisk forurening.It should be further emphasized that the definition of "emission reducing layer" should be understood as any type of lid, cover, membrane or other suitable for creating a layer on top of the slurry to reduce emission from the slurry where said emission is primarily emission of ammonia, but also emissions of other manure or fertilizer from the manure, or emission that encourages the generally bad odor from manure or emission that encourages greenhouse gas or other atmospheric pollution.

3030

PP

4 DK 176992 B14 DK 176992 B1

Det skal yderligere understreges at definitionen “gyllekanal, gylle fortank eller gylle lagertank” skal forstås som enhver form for lager facilitet i enhver form for gylle system i forbindelse med, eller i nærheden af en stald.It should be further emphasized that the definition "slurry, slurry tank or slurry storage tank" shall be understood as any storage facility in any slurry system in connection with, or in the vicinity of, a shed.

5 Som et aspekt af opfindelsen, skabes en del af nævnte emissionsreducerende effekt i det emissionsreducerende lag, ved at sænke pH værdien i nævnte delmængde af gyllen med mindst 10%. Ved at sænke pH værdien, ændres den flygtige ammoniak til den faste ammonium, som er en ikke fordampende kvælstof gødning og dermed øger gødningsværdien af gyllen.As an aspect of the invention, a portion of said emission reducing effect in the emission reducing layer is created by lowering the pH value of said slurry by at least 10%. By lowering the pH, the volatile ammonia changes to the solid ammonium, which is a non-evaporating nitrogen fertilizer and thus increases the fertilizer value of the slurry.

1010

Som et aspekt af opfindelsen, involverer processen med at producerer det emissionsreducerende lag, tilsætning af additiv til gyllen for at øge nævnte lags emissionsreducerende kvaliteter.As an aspect of the invention, the process of producing the emission reducing layer involves the addition of additives to the slurry to enhance the emission reducing qualities of said layer.

15 Hermed opnås en fordelagtig udformning af opfindelsen.Hereby an advantageous embodiment of the invention is obtained.

Som et aspekt af opfindelsen, er nævnte additiv en lugtreducerende, lugt maskering og / eller en deodoriserende middel så som syre eller ozon.As an aspect of the invention, said additive is an odor reducing, odor masking and / or a deodorizing agent such as acid or ozone.

20 Gylle har en indtrængende og ubehagelig lugt og specielt når den røres op - som for eksempel når der røres op for at holde den på flydende form eller når den skal pumpes til lager. Denne negative kvalitet ved gylle er meget markant. Det er derfor en fordel at tilsætte et eller flere additiver der kan øge det emissionsreducerende lags egenskab med at reducere den stærkt ubehagelige lugt fra gyllen.20 Slurry has a penetrating and unpleasant odor and especially when stirred - such as when stirred to keep it in liquid form or when it needs to be pumped into storage. This negative quality of manure is very significant. It is therefore advantageous to add one or more additives which can increase the property of the emission reducing layer by reducing the highly unpleasant odor from the slurry.

2525

Som et aspekt af opfindelsen, skaber ammoniak og lugt et usundt miljø for vækst hos husdyr og et dårligt arbejdsmiljø for mennesker. Det emissionsreducerende lag vil således forbedre vækst hos husdyr og arbejdsmiljø for mennesker.As an aspect of the invention, ammonia and odor create an unhealthy environment for livestock growth and a poor working environment for humans. The emission reduction layer will thus improve the growth of livestock and working environment for humans.

5 DK 176992 B15 DK 176992 B1

Som et aspekt af opfindelsen, er nævnte delmængde af nævnte gylle hel eller delvis flydende, hvor noget af- eller hele det organiske indhold i gyllen er blevet fjernet.As an aspect of the invention, said subset of said slurry is wholly or partially liquid where some or all of the organic content of the slurry has been removed.

At lave det emissionsreducerende lag fra hovedsaligt en flydende delmængde af 5 gyllen uden nogen store organiske eller faste partikler er en fordel, da dette materiale er mere uniformt og har mere forudsigelige kvaliteter og dermed gør det bedre egnet til at lave et emissionsreducerende lag.Making the emission reducing layer from a predominantly liquid subset of 5 slurries without any large organic or solid particles is an advantage as this material is more uniform and has more predictable qualities and thus makes it more suitable to make an emission reducing layer.

Som et aspekt af opfindelsen, er nævnte delmængde af gyllen produceret gennem en 10 separationsproces, så som filtrering eller centrifugering af nævnte delmængde af gyllen.As an aspect of the invention, said slurry is produced through a separation process such as filtration or centrifugation of said slurry.

Hermed opnås en fordelagtig udformning af opfindelsen.Hereby an advantageous embodiment of the invention is obtained.

Som et aspekt af opfindelsen, er nævnte emissionsreducerende lag skum, lavet af 15 nævnte gylle eller delmængde af nævnte gylle.As an aspect of the invention, said emission reducing layer is foam made from said slurry or subset of said slurry.

Skum består af bobler af gas, så som luft fanget i gyllen eller delmængden af gylle.Foam consists of bubbles of gas, such as air trapped in the slurry or the subset of slurry.

Luft fanget i gylle har ingen emission og hvis gyllen består af store mængder luft vil emissionen fra skumoverfladen være væsentligt reduceret i sammenligning med gylle 20 uden skum. Det er derfor en fordel at anvende gylleskum som et emissionsreducerende lag.Air trapped in slurry has no emission and if the slurry consists of large amounts of air, the emission from the foam surface will be significantly reduced compared to slurry 20 without foam. It is therefore advantageous to use slurry foam as an emission reducing layer.

Som et aspekt af opfindelsen, er nævnte skum lavet igennem en mekanisk proces som injektion af gasart som for eksempel luft, ved at piske gas ind i, eller ved hjælp 25 af over- eller undertryk at opskumme nævnte gylle eller delmængde af gylleAs an aspect of the invention, said foam is made through a mechanical process such as injection of a gas species such as air, by whipping gas into, or by foaming or overpressing said slurry or slurry of slurry.

Det er fordelagtigt at anvende en mekanisk proces idet der ikke skal anvendes nogen additiver til processen.It is advantageous to use a mechanical process since no additives are needed for the process.

6 DK 176992 B1 a6 DK 176992 B1 a

Som et aspekt af opfindelsen, er nævnte skum lavet ved at tilsætte et additiv så som svovlsyre og / eller en eller flere opskumningsmidler til nævnte gylle eller delmængde af gylle.As an aspect of the invention, said foam is made by adding an additive such as sulfuric acid and / or one or more foaming agents to said slurry or subset of slurry.

5 Ved at tilsætte et opskumningsmiddel til gyllen eller en delmængde af gyllen, er det muligt at skabe skum på en enkel og omkostningsreducerende metode.5 By adding a foaming agent to the slurry or a subset of the slurry, it is possible to create foam by a simple and cost-reducing method.

Som et aspekt af opfindelsen, er nævnte skum lavet igennem en varmeproces, så som at opvarme nævnte gylle eller delmængde af gylle.As an aspect of the invention, said foam is made through a heating process such as heating said slurry or subset of slurry.

1010

De fleste halvflydende substanser så som gylle har en tendens til at generere et skumlag når de bliver opvarmet og opvarmning af gyllen eller en delmængde af gyllen er derfor en enkel og omkostningsreducerende metode at lave skum på.Most semi-liquid substances such as slurries tend to generate a foam layer when heated and heating the slurry or a subset of the slurry is therefore a simple and cost-reducing method of making foam.

15 Som et aspekt af opfindelsen, er nævnte skum stabiliseret igennem tilsætning af et skumstabiliserende middel.As an aspect of the invention, said foam is stabilized by the addition of a foam stabilizer.

Det er en fordel at tilsætte et skumstabiliserende middel fordi dette vil forlænge den emissionsreducerende effekt af skum.It is advantageous to add a foam stabilizing agent because this will prolong the emission reducing effect of foam.

2020

Som et aspekt af opfindelsen, placeres nævnte emissionsreducerende lag kun til den del af gyllen der ellers ville være i kontakt med den omgivende luft, da det således er omkostningsreducerende kun at bruge skum hvor emission til den omgivende luft finder sted.As an aspect of the invention, said emission reducing layer is placed only to the part of the slurry that would otherwise be in contact with the ambient air, since it is therefore cost-reducing to use foam only where emission to the ambient air takes place.

2525

Endvidere leveres der igennem opfindelsen et apparat til at reducerer emission fra gylle i en gyllekanal, en gyllelager tank eller en kombination deraf.Furthermore, the invention provides an apparatus for reducing slurry emission in a slurry channel, a slurry storage tank or a combination thereof.

Apparatet indeholder mulighed for at skabe en emissionsreducerende substans fra gylle eller en delmængde af gylle hentet fra gyllekanalen og / eller gylle lager tank, 30 samt mulighed for at distribuerer den emissionsreducerende substans til mindst en 7 DK 176992 B1 del af den tilbageværende gylle i gylle kanal og / eller gylle lagertank, således at substansen udgør et emissionsreducerende lag.The apparatus includes the possibility of creating an emission reducing substance from slurry or a subset of slurry taken from the slurry channel and / or slurry storage tank, as well as the possibility of distributing the emission reducing substance to at least a 7 slurry of the remaining slurry in slurry channel. and / or slurry storage tank so that the substance constitutes an emission reducing layer.

Da et emissionsreducerende lag er lavet af gylle, vil et ikke udgøre nogen hindring i 5 at holde den resterende gylle i gyllekanal eller fortank flydende. Da der er rigeligt materiale til at skabe det emissionsreducerende lag med og da det ikke udgør nogen omkostning at anvende, kan det blive genanvendt og påført overfladen så ofte som påkrævet.Since an emission reducing layer is made of slurry, there will be no obstacle in keeping the remaining slurry in slurry duct or tank floating. Since there is plenty of material to create the emission reducing layer and since it does not pose any cost to use, it can be recycled and applied to the surface as often as required.

10 Som et aspekt af opfindelsen, indeholder nævnte apparat endvidere mulighed for at ekstrahere nævnte gylle eller delmængde af gylle fra nævnte gyllekanal og / eller nævnte gylle lagertank.As an aspect of the invention, said apparatus further includes the possibility of extracting said slurry or subset of slurry from said slurry channel and / or said slurry storage tank.

Som et aspekt af opfindelsen, indeholder nævnte apparat mulighed for at udfører en 15 metode ifølge et eller flere af krav 1 til 13.As an aspect of the invention, said apparatus includes the possibility of carrying out a method according to one or more of claims 1 to 13.

Hermed opnås en fordelagtig udformning af opfindelsen.Hereby an advantageous embodiment of the invention is obtained.

Figurer 20Figures 20

Opfindelsen vil blive beskrevet i det følgende med reference til figurer i hvilkeThe invention will be described below with reference to figures in which

Fig. 1 Illustrerer en gyllekanal omrøresektion som den kendes fra litteratur.FIG. 1 Illustrates a slurry channel stirring section as known from literature.

Set fra siden.Seen from the side.

2525

Fig. 2 Illustrerer en gyllekanal omrøresektion som den kendes fra litteratur.FIG. 2 Illustrates a slurry channel stirring section as known from literature.

Set fra siden.Seen from the side.

Fig. 3 Illustrerer et gylle ringskyllekanal anlæg som den kendes fra litteratur.FIG. 3 Illustrates a slurry rinsing system as it is known from literature.

30 Set oven fra.30 Top view.

8 DK 176992 B18 DK 176992 B1

Fig. 4 Illustrerer et gytlekanal anlæg som det kendes fra litteraturen.FIG. 4 Illustrates a spawning canal plant as known from the literature.

Set fra siden 5 Fig. 5 Illustrerer et gyllekanal system som det kendes fra litteraturen.Seen from the side 5 FIG. 5 Illustrates a slurry system as known in the literature.

Set fra oven.Seen from above.

Fig. 6 Illustrerer et gyllekanal system tilsluttet en for tank som det kendes fra litteraturen. Set fra siden.FIG. 6 Illustrates a slurry system connected to a tank as it is known from the literature. Seen from the side.

1010

Fig. 7 Illustrerer et gylle kanal system tilsluttet en for tank med en pumpe som det kendes fra litteraturen. Set fra siden.FIG. 7 Illustrates a slurry duct system connected to a tank with a pump as it is known from the literature. Seen from the side.

Fig. 8 Illustrerer et gylle fortank system tilsluttet en gylle lager tank. Set fra 15 siden.FIG. 8 Illustrates a slurry tank system connected to a slurry storage tank. Seen from 15 pages.

Fig. 9 Illustrerer skumgenerering ved hjælp af en eller to additiver. Set fra siden.FIG. 9 Illustrates foam generation using one or two additives. Seen from the side.

20 Fig. 10 Illustrerer skumgenerering ved hjælp at et additiv. Set fra siden.FIG. 10 Illustrates foam generation using an additive. Seen from the side.

Fig. 11 Illustrerer skumgenerering ved hjælp af gas injektion. Set fra siden.FIG. 11 Illustrates foam generation using gas injection. Seen from the side.

Fig. 12 Illustrerer skumgenerering ved hjælp af varme. Set fra siden.FIG. 12 Illustrates foam generation using heat. Seen from the side.

2525

Fig. 13 Illustrerer skumgenerering ved hjælp af piskning. Set fra siden.FIG. 13 Illustrates foam generation using whipping. Seen from the side.

Fig. 14 Illustrerer skumgenerering ved hjælp af tryk. Set fra siden.FIG. 14 Illustrates foam generation using pressure. Seen from the side.

30 Fig. 15 Illustrerer skumgenerering ved hjælp af en centrifuge. Set fra siden.FIG. 15 Illustrates foam generation using a centrifuge. Seen from the side.

i 9 DK 176992 B1in 9 DK 176992 B1

Fig. 16 Illustrerer et filter for at separere den flydende del af gyllen fra den organiske. Set fra siden.FIG. 16 Illustrates a filter to separate the liquid slurry from the organic. Seen from the side.

5 Detaljeret beskrivelse5 Detailed description

Opfindelsen relaterer til et gylle ring kanal system i en stald fig. 3 og til et gylle bagskylle system fig. 4. Og andre systemer fig. 5, og til en metode til at reducere emission fra gylle - fig. 9,10,11,12,13,14,15,16 leveret på et applikationspunkt 6 10 ved at tilføre gylle 1 et emissionsreducerende lag 5 lavet delvis eller helt af gylle 1.The invention relates to a slurry ring duct system in a stable fig. 3 and for a slurry rear flushing system fig. 4. And other systems fig. 5, and for a method for reducing slurry emissions - fig. 9,10,11,12,13,14,15,16 delivered at an application point 6 10 by adding slurry 1 to an emission reducing layer 5 made partly or entirely of slurry 1.

Fig. 1,2,3 illustrere et gylle ringskyllekanal system som det kendes fra litteraturen og set fra oven og fra siden. Mange ringskyllekanal systemer skal omrores dagligt eller flere gange om ugen.FIG. 1,2,3 illustrate a slurry ring irrigation duct system as known from the literature and viewed from above and from the side. Many rinsing systems need to be stirred daily or several times a week.

15 I et aspekt af opfindelsen, producers det emissionsreducerende lag helt eller delvist under omrøringen af gyllen 1 for at holde den flydende eller ved transport til lagertank.In one aspect of the invention, the emission reducing layer is produced, in whole or in part, during agitation of slurry 1 to keep it liquid or in transport to storage tank.

Det er omkostningsbesparende at generere det emissionsreducerende lag 5 under 20 omrøringsprocessen. Eftersom at gyllen 1 er i bevægelse rundt i kanalen, er der ingen behov for tanke, buffer eller andet til at lagre det emissionsreducerende materiale fra hvilket det emissionsreducerende lag 5 er produceret.Generating the emission reducing layer 5 during the stirring process is cost effective. Since slurry 1 is moving around the channel, there is no need for tanks, buffers or anything else to store the emission reducing material from which the emission reducing layer 5 is produced.

Yderligere, vil det emissionsreducerende lag forsvinde over tid, således at det skal 25 genetableres når laget er blevet for tyndt eller at pH værdien i det emissionsreducerende lag er blevet for høj.Further, the emission reducing layer will disappear over time, so that it must be re-established when the layer has become too thin or the pH value of the emission reducing layer has become too high.

Det er derfor en fordel at der ikke skal tages nogen specielle forholdsregler for at starte processen med produktion af det emissionsreducerende lag, men at det kan blive produceret og distribueret sammen med de eksisterende rutiner i stalden.It is therefore advantageous that no special precautions should be taken to start the process of producing the emission reducing layer, but that it can be produced and distributed together with the existing routines in the barn.

30 10 DK 176992 B130 10 DK 176992 B1

Et traditionelt gyllekanal system består af en stald der indeholder kanal systemet 27 og gylle 1 og et distributionsarrangement 1, 2 for at omrører og / eller transport af gylle 1 fra kanal system til fortank 10, 5 Fig, 4 + 5 illustrere en stald med et gyile bagskylle system set fra siden og fra oven, I denne anvendelse af opfindelsen, består systemet af min. en eller flere tanke med additiver 3 og en metode 8 til 16 for at producere det emissionsreducerende tag 5, 10 Gylle fremføringsmetoden 8-16 indeholder yderligere mulighed for at producere det emissionsreducerende lag ved at mikse noget af gyllen eller delmængden af gyllen med et additiv.A conventional slurry duct system consists of a shed containing duct system 27 and slurry 1 and a distribution arrangement 1, 2 for stirring and / or transporting slurry 1 from duct system to forceps 10, 5 Fig. 4 + 5 illustrating a stable with a gyile rear flushing system viewed from the side and from above. In this application of the invention, the system consists of min. one or more tanks with additives 3 and a method 8 to 16 for producing the emission reducing tag 5, 10. The slurry feeding method 8-16 further provides the possibility of producing the emission reducing layer by mixing some of the slurry or subset of slurry with an additive.

I denne anvendelse af opfindelsen er additivet svovlsyre, men i en anden anvendelse 15 kan additivet være en anden slags syre, kemi eller syntetisk eller naturligt fremstillet substans, der giver mulighed for at øge det emissionsreducerendes lags 5 evne til at reducere emission fra gyllen 1.In this application of the invention, the additive is sulfuric acid, but in another application 15 the additive may be another type of acid, chemistry or synthetic or naturally produced substance which allows the ability of the emission reducing layer 5 to reduce slurry 1 emissions.

Denne forøgede evne til at reducere emission kunne for eksempel forekomme ved at additivet har en lugt reducerende, lugt maskerende og / eller desodoriserende effekt 20 på det emissionsreducerende lag 5 eller på gyllen 1, på hvilket det emissionsreducerende lag 5 er udlagt, eller ved at additivet har en evne til at forlænge holdbarheden af det emissionsreducerende lags 5 livstid / stabilitet, eller ved at have en forseglende kvalitet i det emissionsreducerende lag 5 og resultere i at det emissionsreducerende lag 5 reducerer emission af ammoniak eller andet fra gyllen 1.This increased ability to reduce emissions could occur, for example, by the additive having an odor reducing, odor masking and / or deodorizing effect 20 on the emission reducing layer 5 or on the slurry 1 on which the emission reducing layer 5 is laid, or by the additive have an ability to extend the life of the emission reducing layer 5 life / stability, or by having a sealing quality in the emission reducing layer 5 and result in the emission reducing layer 5 reducing the emission of ammonia or other from slurry 1.

25 I en anden anvendelse af opfindelsen, kunne den emissionsreducerende substans produceres ved at tilsætte ozon til en delmængde af gylle 1 og hermed producere en næsten lugtløs substans der efterfølgende anvendes som delmængde til produktion af emissionsreducerende lag 5 hvilket efter udlægning over gylle 1 vil reducere 30 emission af ildelugtende gasser og andet fra gyllen 1In another application of the invention, the emission reducing substance could be produced by adding ozone to a subset of slurry 1 and thereby producing an almost odorless substance which is subsequently used as a subset for production of emission reducing layer 5 which after reduction over slurry 1 will reduce 30 emission of smelly gases and other from the slurry 1

PP

11 DK 176992 B1 I denne anvendelse vil den emissionsreducerende substans blive genereret, mens gyllen 1 bliver omrørt eller transporteret fra gylle kanal 8 til fortank 10.In this application, the emission reducing substance will be generated while slurry 1 is stirred or transported from slurry channel 8 to tank 10.

Under denne transport vil de skumdannende apparater 15 udtage en hovedsalig flydende delmængde af gyllen fra gylle kanal 8 og mixe det med en eller flere 5 additiver. Efter opskumningen transporteres delmængden - nu et emissionsreducerende lag, tilbage til gylle kanalen 8 eller fortank 10 hvor det emissionsreducerende lag placeres oven på gyllen 1.During this transport, the foam forming apparatus 15 will take a mainly liquid subset of the slurry from slurry channel 8 and mix it with one or more 5 additives. After foaming, the subset - now an emission reducing layer, is transported back to slurry channel 8 or tank 10 where the emission reducing layer is placed on top of slurry 1.

I en anden anvendelse af opfindelsen, vil gylle distributionsmetoden fig. 9-16 ikke 10 indeholde en additiv tank 3 idet den emissionsreducerende substans og dermed det emissionsreducerende lag 5 produceres uden nogen form for additiver der ikke er let tilgængelig og til rådighed i omgivelserne så som luft, men udelukkende med en af de under fig. 8 til 15 nævnte metoder.In another application of the invention, the distribution method of FIG. 9-16 not 10 contain an additive tank 3, the emission reducing substance and thus the emission reducing layer 5 being produced without any additives which are not readily available and available in the environment such as air, but exclusively with one of the ones shown in FIG. 8 to 15 mentioned methods.

Den manglende tilstedeværelse af additiv tank 3 kunne også være som følge af den 15 emissionsreducerende substans var pre-fabrikeret fra gylle 1 eller en delmængde af gyllen 1 på et centralt produktionsanlæg hvorfra den reduktionsreducerende substans efterfølgende pålægges overfladen af gyllen 1 på applikationsstedet 6.The absence of additive tank 3 could also be due to the 15 emission reducing substance being pre-fabricated from slurry 1 or a subset of slurry 1 at a central production plant from which the reducing reducing substance is subsequently applied to the surface of slurry 1 at the application site 6.

I en anden anvendelse af opfindelsen, genereres det emissionsreducerende lag 20 direkte ved at tilsætte additiv så som svovlsyre direkte på overfladen af gyllen 1, hvorefter gyllen 1 og additivet generere et emissionsreducerende lag oven på gyllen 1.In another application of the invention, the emission reducing layer 20 is generated directly by adding additive such as sulfuric acid directly to the surface of slurry 1, after which slurry 1 and the additive generate an emission reducing layer on top of slurry 1.

Fig 9, 10 illustrere skum generering ved hjælp af et additiv, idet at gylle rørsystem 13 25 bliver forsynet med tilsætning af additiv.Figs. 9, 10 illustrate foam generation by means of an additive, with slurry pipe system 13 25 being provided with the addition of additive.

I denne anvendelse af opfindelsen tilfører en doseringspumpe 17 den passerende gylle 1 med et additiv så som svovlsyre eller en anden syre eller kemisk substans der gør at den frie overflade på gyllen 1 vil skumme og skabe et lag af skum der vil fungere som et emissionsreducerende lag 5 over gyllen 1.In this application of the invention, a metering pump 17 feeds the passing slurry 1 with an additive such as sulfuric acid or another acid or chemical which causes the free surface of slurry 1 to foam and create a layer of foam which will act as an emission reducing layer. 5 over the golden 1.

30 a 12 DK 176992 B1 I denne anvendelse er additivet tilsat den samlede volumen af gylle 1, men i en anden anvendelse kan additivet tilsættes til en delmængde af gyllen 1, nemlig den del af gyllen der udgør overfladen når det udlægges på gylle overfladen 6 eller additivet kunne blive tilsat til en del af overfladen af den passerende mængde gylle 1.30 a 12 DK 176992 B1 In this application, the additive is added to the total volume of slurry 1, but in another application the additive can be added to a subset of slurry 1, namely the part of the slurry that makes up the surface when applied to the slurry surface 6 or the additive could be added to a portion of the surface of the passing amount of slurry 1.

55

Fig. 11 illustrerer skum genererede ved hjælp af gas injektion, set fra siden.FIG. 11 illustrates the side view of foam generated by gas injection.

Figuren illustrerer en rørledning 16 igennem hvilken der flyder en delmængde af gyllen 1. I rørledningen 16 tilsættes delmængden af gylle 1 gas, der indblæses i 10 gyllesubstansen for at skabe bobler af nævnte gas i gyllen, for derigennem at skabe skum der kan fungerer som et emissionsreducerende lag 5, når det pålægges gylleoverfalden 1.The figure illustrates a pipeline 16 through which a subset of slurry 1 flows. In the pipeline 16, the subset of slurry 1 gas is injected into the slurry substance to create bubbles of said gas in the slurry, thereby creating foam that can act as a slurry. emission reduction layer 5 when applied to slurry overflow 1.

I denne anvendelse er gassen ordinær luft, men i en anden anvendelse kunne gassen 15 være ozon eller en anden gasart, der foruden at skabe skum, også kan forbedre det emissionsreducerende lags 5 evne til at reducere emission.In this application, the gas is ordinary air, but in another application the gas 15 could be ozone or another gas which, in addition to creating foam, can also improve the ability of the emission reducing layer 5 to reduce emission.

Fig. 12 illustrerer skum genereret ved hjælp af varme, set fra siden.FIG. 12 is a side view of foam generated by heat.

20 I denne anvendelse af opfindelsen, består det skumgenerede apparat 15 af et varmelegme 18 der kan opvarme flow af en delmængde af gylle mens det passerer igennem rørledningen 16.In this application of the invention, the foam-generated apparatus 15 consists of a heater 18 capable of heating the flow of a subset of slurry as it passes through the pipeline 16.

I denne anvendelse viser figuren en rørledning 16 og en skumgenerering 15 for at skabe et emissionsreducerende lag 5 på gyllen 1, men i en anden anvendelse kan det 25 illustrerede skumgenererende arrangement 15 være placeret i gylle rørledningen for at opvarme den samlede volumen af gylle før udlægning og når gyllen 1 er udlagt vil den generere en overflade af skum der vil fungere som et emissionsreducerende lag 5.In this application, the figure shows a pipeline 16 and a foam generation 15 to create an emission reducing layer 5 on the slurry 1, but in another application the illustrated foam generating arrangement 15 may be located in the slurry pipeline to heat the total volume of slurry prior to laying and when slurry 1 is laid, it will generate a surface of foam which will act as an emission reducing layer 5.

30 Fig. 13 illustrerer skumdannelse ved hjælp af piskning, set fra siden.FIG. Figure 13 is a side view of foam formation using whipping.

PP

13 DK 176992 B1 I denne anvendelse, er delmængden af gylle 1 mekanisk blandet med luft på dens vej igennem rørledningen 16, for at generere en emissionsreducerende substans der kan fungere som det emissionsreducerende lag 5.In this application, the subset of slurry 1 is mechanically mixed with air on its way through the conduit 16 to generate an emission reducing substance which may act as the emission reducing layer 5.

55

Fig. 14 illustrere skum generering ved hjælp af tryk, set fra siden.FIG. 14 is a side view illustrating foam generation using pressure.

I denne anvendelse er rørledningen 16 udrustet med en pumpe der kan levere et højt tryk i flow af delmængden af gyllen 1. Ved at levere det emissionsreducerende 10 substans igennem en dyse 19 der er egnet til formålet, vil skum blive genereret så det kan fungere som emissionsreducerende lag 5.In this application, the pipeline 16 is equipped with a pump capable of delivering high pressure in the flow of the slurry of slurry 1. By supplying the emission reducing substance 10 through a nozzle 19 suitable for the purpose, foam will be generated so that it can function as emission reduction layer 5.

Fig. 9 til 16 har alle skumgenererende evner 15 og metoder til at skabe skum fra gylle 1 for at danne et emissionsreducerende lag 5, men i en anden anvendelse af 15 opfindelsen, kan det emissionsreducerende lag også formes som et slimlag der dækker gyllen 1. Den kan formes som et substans der vil hærde efter at være placeret oven på gyllen 1 for at forme en skorpe, flydelag eller andet der vil agere som et emissionsreducerende lag 5. Det kan være tørstof pålagt gyllen 1 for at danne et emissionsreducerende lag eller det kan være enhver anden substans, hvori 20 substansen som enten skum, slim, skorpe, flydelag mm. er produceret delvis eller helt af gyllen 1.FIG. 9 to 16 have all foam generating capabilities 15 and methods for creating slurry 1 foam to form an emission reducing layer 5, but in another application of the invention, the emission reducing layer may also be formed as a slurry covering the slurry 1. It may is formed as a substance which will cure after being placed on top of slurry 1 to form a crust, float layer or other that will act as an emission reducing layer 5. It may be dry matter applied to slurry 1 to form an emission reducing layer or it may be any other substance in which the substance is either foam, mucus, crust, float layer, etc. is produced partly or wholly from slurry 1.

Yderligere, fig. 9 til 16 har alle fremvist skumgenerende evner 15 placeret i gyllerørledning 13 eller 16, men i en anden anvendelse af opfindelsen, kan de 25 skumgenererende evner 15 placeres anderledes så som i en central position hvor skummet genereres før gyllen 1 eller den emissionsreducerende substans ledes til rørledningerne 13,16.Further, FIG. 9 to 16 have all exhibited foam generating capabilities 15 located in slurry conduit 13 or 16, but in another application of the invention, the 25 foam generating capabilities 15 may be placed differently such as in a central position where the foam is generated before slurry 1 or the emission reducing substance is directed to the pipelines 13,16.

Fig. 15 illustrerer en centrifuge 20 for at separere den vandholdige del af gyllen fra 30 det organiske tørstof af gyllen 1, set fra siden.FIG. Figure 15 illustrates a centrifuge 20 for separating the aqueous portion of the slurry from the organic dry matter of slurry 1, viewed from the side.

DK 176992 B1 » 14 I denne anvendelse, ledes en delmængde af gyllen 1 til centrifugen 20 gennem en gylle rørledning 21. I centrifugen 20 roteres gyllen rundt, hvilket bevirker at de tunge dele i gyllen 1 bliver slynget ud i periferien af centrifugen 20, hvilket muliggør 5 at en vandholdig del kan blive udskilt i et centralt placeret rør 22 og en mere tørstofholdig del af gyllen 1 kan blive udskilt fra en rørledning placeret i periferien 23.In this application, a subset of the slurry 1 is passed to the centrifuge 20 through a slurry pipeline 21. In the centrifuge 20, the slurry is rotated which causes the heavy portions of the slurry 1 to be thrown out into the periphery of the centrifuge 20, which 5 allows a water-containing part to be separated into a centrally located pipe 22 and a more dry matter-containing part of the slurry 1 to be separated from a pipe located in the periphery 23.

Den vandholdige del kan herefter blive videre forarbejdet til at fungere som et 10 emissionsreducerende lag 5 mens den tørstofholdige del bliver ledt tilbage til gyllekanalen, overdækket med spalter 8 eller den tørstofholdige del kan blive forarbejdet til at fungere som et emissionsreducerende lag 5 mens den vandholdige del ledes tilbage til gylle kanalen 8.The aqueous portion may then be further processed to act as an emission reducing layer 5 while the dry matter portion is returned to the slurry, covered with slots 8, or the dry matter portion may be processed to act as an emission reducing layer 5 while the aqueous portion return to the slurry channel 8.

15 Fig. 16 illustrerer en filtrerings metode 24 for at separere en vandholdig del fra tørstof del af gyllen 1, set fra siden, 1 denne anvendelse, ledes gyllen 1 til filtreringsområdet 24 igennem en rørledning 21. I en skarp bøjning, passerer gyllen 1 et filter 25, hvorigennem den vandholdige 20 del af gyllen 1 kan passere til en rørledning til vandholdig gylle 22 mens den mere tørstofholdige gylle 1 fortsætter til en tørstofholdig rørledning 23.FIG. 16 illustrates a method of filtration 24 for separating a water-containing portion from dry matter portion of slurry 1, viewed from the side, in this application, slurry 1 is passed to filtration area 24 through a pipeline 21. In a sharp bend, slurry 1 passes a filter 25, through which the aqueous portion of slurry 1 can pass to a pipeline for aqueous slurry 22, while the more solids-containing slurry 1 continues to a dry-slurry pipeline 23.

På grund af dette design, er filtreringsområdet 24 selvrensende.Because of this design, the filtration area 24 is self-cleaning.

25 Opfindelsen er ovenstående blevet eksemplificeret med specifikke eksempler af hvordan emissionsreducerende substans, skumgenererende apparater 15, metoder til at producere og placere emissionsreducerende substans og andet. Imidlertid skal dette forstås således at opfindelsen ikke er begrænset til disse særlige eksempler beskrevet ovenstående, men kan designes og ændres i en uendelig variation inden for 30 rammerne af opfindelsen som specificeret i patentkravene.The invention has been exemplified above with specific examples of how emission reducing substance, foam generating apparatus 15, methods of producing and placing emission reducing substance and other. However, this is to be understood so that the invention is not limited to these particular examples described above, but can be designed and modified in an infinite variety within the scope of the invention as specified in the claims.

15 DK 176992 B1DK 176992 B1

Liste I. Gylle 5 2. Gylle omrørepropeiler for transport / holde gylle flydende 3. Additiv tank 4. Gyllekanal spalter 5. Emissionsreducerende lag 6. Gylle overflade 10 7. Gyllepumpe 8. Gyllekanal 9. Rørledning til at tømme gyllekanal 10. Fortank til gylle II. Rørledning til at fordele skum / emissionsreducerende lag 15 12. Gylle lagertank 13. Gylle rørledning 14. Dyse 15. Skumgenerende apparat 16. Gylle rørledning 20 17. Doseringspumpe 18. Varme generende element 19. Dyse 20. Centrifuge 21. Gylle indføringsrør 25 22, Vandholdig gylle udledningsrør 23. Tørstofholdig gylle udledningsrør 24. Filtreringssystem 25. Filtreringsgitter 26. Stald med gylle kanal system. Set lfa oven.List I. Slurry 5 2. Slurry stirrer propellers for transport / keep slurry liquid 3. Additive tank 4. Slurry duct slots 5. Emission reducing layer 6. Slurry surface 10 7. Slurry pump 8. Slurry duct 9. Pipeline for emptying slurry channel 10. Prefill to slurry II. Pipeline for distributing foam / emission reducing layer 15 12. Slurry storage tank 13. Slurry pipeline 14. Nozzle 15. Foam generating device 16. Slurry pipeline 20 17. Dosing pump 18. Heat-generating element 19. Nozzle 20. Centrifuge 21. Slurry feed tube 25 22, Aqueous slurry discharge pipe 23. Solid-state slurry discharge pipe 24. Filtration system 25. Filtration grating 26. Stable with slurry duct system. Set lfa oven.

30 27. Stald med gylle kanal system. Set fra siden.30 27. Stable with slurry duct system. Seen from the side.

Claims (12)

16 DK 176992 B116 DK 176992 B1 1. En metode til at reducerer emission fra gylle (1) i en gylle kanal (8), en gylle lagertank (10,12) eller en kombination deraf. Metoden består af følgende trin: 5 • At udtage en delmængde af gylle (1) fra gylle kanalen (8) og / eller fra gylle lagertanken (10,12) • Skabe en emissionsreducerende substans, hvori nævnte emissionsreducerende substans er et emissionsreducerende lag (5) af skum, hvilket skum er lavet på 10 basis af delmængden af gylle (1) eller en del af delmængden af gylle (1) og • Distribuere den emissionsreducerende substans ind i gyllekanalen og placere den på mindst en del af den resterende gylle (1) i gyllekanalen (8) og / eller i gylle lagertanken (10,12) for at skabe det emissionsreducerende lag (5).A method for reducing slurry emission (1) in a slurry channel (8), a slurry storage tank (10,12) or a combination thereof. The method consists of the following steps: 5 • Removing a subset of slurry (1) from the slurry channel (8) and / or from the slurry storage tank (10,12) • Creating an emission reducing substance wherein said emission reducing substance is an emission reducing layer (5). ) of foam, which foam is made on the basis of the subset of slurry (1) or part of the subset of slurry (1) and • Distribute the emission reducing substance into the slurry channel and place it on at least a portion of the remaining slurry (1). ) in the slurry channel (8) and / or in the slurry storage tank (10, 12) to create the emission reducing layer (5). 2. En metode ifølge patentkrav 1, hvori nævnte emissionsreducerende substans tilsættes midler til sænkning af pH værdien i nævnte delmængde eller del af nævnte delmængde med minimum 10%A method according to claim 1, wherein said emission reducing substance is added to lower the pH value in said subset or part of said subset by at least 10% 3. En metode ifølge patentkrav 1 eller 2, hvori nævnte emissionsreducerende 20 substans involverer tilsætning af en eller flere additiver for at forøge nævnte substans emissionsreducerende evner.A method according to claim 1 or 2, wherein said emission reducing substance involves the addition of one or more additives to enhance said substance's reducing ability. 4. En metode ifølge patentkrav 3, hvori nævnte additiver er lugtreducerende, lugt maskerende eller desodoriserende middel så som syre eller ozon. 25A method according to claim 3, wherein said additives are odor reducing, odor masking or deodorizing agents such as acid or ozone. 25 5. En metode ifølge et eller flere af ovenstående patentkrav, hvori nævnte delmængde af gylle (1) er den hovedsaligt vandholdige del af gylle (1) eller part af gylle (1) hvor noget eller hele den tørstofholdige del af nævnte gylle (1) er blevet fjernet. 30 17 DK 176992 B1A method according to one or more of the preceding claims, wherein said subset of manure (1) is the mainly aqueous part of manure (1) or part of manure (1) wherein some or all of the dry matter containing part of said manure (1) has been removed. 30 17 DK 176992 B1 6. En metode ifølge patentkrav 5, hvori nævnte vandholdige delmængde af gylle (1) er produceret igennem en separerings proces som for eksempel filtrering eller centrifugeringA method according to claim 5, wherein said aqueous sub-manure of slurry (1) is produced through a separation process such as filtration or centrifugation. 7. En metode ifølge patentkrav 6, hvori nævnte skum er produceret igennem en mekanisk proces så som injektion af gas, for eksempel som luft, ved piskning af luft ind i gyllen (1) eller ved hjælp af trykkompression af gyllen (1) eller delmængde af gylle (1)A method according to claim 6, wherein said foam is produced by a mechanical process such as injection of gas, for example as air, by whipping air into the slurry (1) or by means of compression of the slurry (1) or subset. of slurry (1) 8. En metode ifølge patentkrav 6, hvori nævnte skum er lavet ved at tilsætte et opskumningsmiddel så som svovlsyre til nævnte gylle (1) eller delmængde af gylle (1)A method according to claim 6, wherein said foam is made by adding a foaming agent such as sulfuric acid to said slurry (1) or subset of slurry (1). 9. En metode ifølge patentkrav 6, hvori nævnte skum er lavet igennem en 15 opvarmningsproces af nævnte gylle (1) eller delmængde af gylle.A method according to claim 6, wherein said foam is made through a heating process of said slurry (1) or subset of slurry. 10. En metode ifølge et eller flere af ovenstående patentkrav, hvori nævnte skum er stabiliseret igennem at tilsætte et skumstabiliserende additiv.A method according to one or more of the preceding claims, wherein said foam is stabilized by adding a foam stabilizing additive. 11. En metode ifølge et eller flere af ovenstående patentkrav, hvori nævnte emissionsreducerende lag (5) kun udlægges på den del af nævnte gylle (1) der ellers · ville være i fri kontakt med den omgivende luft.A method according to one or more of the preceding claims, wherein said emission reducing layer (5) is only applied to the part of said slurry (1) which would otherwise be in free contact with the ambient air. 12. Et apparat til at udføre en metode ifølge et eller flere af kravene 1-11 for at 25 reducere emission fra gylle (1) i en gyllekanal (8), en gylle lagertank (10, 12) eller en kombination deraf, hvor nævnte apparat muliggør dannelse af en emissionsreducerende substans ud af gylle (1) eller delmængde af gylle (1) udtaget fra gyllekanal (8) og / eller gylle lagertank (10, 12) samt fordele nævnte emissionsreducerende substans på mindst en del af den tilbageværende gylle (1) i 9 18 DK 176992 B1 gyllekanalen (8) og / eller nævnte gylle lagertank (10, 12) for at forme et emissionsreducerende lag (5) af skum.An apparatus for carrying out a method according to one or more of claims 1-11 for reducing emission from slurry (1) in a slurry channel (8), a slurry storage tank (10, 12) or a combination thereof, wherein said apparatus enables formation of an emission reducing substance from slurry (1) or subset of slurry (1) taken from slurry channel (8) and / or slurry storage tank (10, 12) as well as distributing said emission reducing substance to at least a portion of the remaining slurry ( 1) in the slurry channel (8) and / or said slurry storage tank (10, 12) to form an emission reducing layer (5) of foam.
DKPA200800572A 2008-04-21 2008-04-21 A method and apparatus for reducing slurry emissions DK176992B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966450A (en) * 1974-08-12 1976-06-29 Fmc Corporation Animal waste odor treatment
US5736032A (en) * 1992-05-19 1998-04-07 Cox; James P. Stabilization of biowastes
US5865143A (en) * 1993-09-30 1999-02-02 Trustees Of University Of Arkansas And United States Of America High-rise laying hen rearing facility and method
US20010011646A1 (en) * 1998-10-22 2001-08-09 Moore Philip A. Methods of treating manure
US7438815B1 (en) * 2005-12-28 2008-10-21 The United States Of America As Represented By The Secretary Of Agriculture Inhibiting ammonia emissions and odors from animal wastes with oil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966450A (en) * 1974-08-12 1976-06-29 Fmc Corporation Animal waste odor treatment
US5736032A (en) * 1992-05-19 1998-04-07 Cox; James P. Stabilization of biowastes
US5865143A (en) * 1993-09-30 1999-02-02 Trustees Of University Of Arkansas And United States Of America High-rise laying hen rearing facility and method
US20010011646A1 (en) * 1998-10-22 2001-08-09 Moore Philip A. Methods of treating manure
US7438815B1 (en) * 2005-12-28 2008-10-21 The United States Of America As Represented By The Secretary Of Agriculture Inhibiting ammonia emissions and odors from animal wastes with oil

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