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Implementationof SATs onnationallevel
LenaRodhe,JustinCasimirandErikSindhöjResearchInstitutes of Sweden,RISE
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Report onimplementationof SATs
§Report comingsoon andcan bethen found inwww.balticslurry.eu,section”Outputs”.
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Content of report§ Descriptionsofslurryacidificationtechniques(SATs)inDenmarkincludingIn-house,In-storageandIn-fieldSATs,andhowitispracticed.
§ SummarizesexpertjudgementsonhowtheseSATscouldbeimplementedineachcountryintheBalticSeaRegion(BSR).
§ SpecialfocusonbottlenecksforimplementingSATswithexistingmanuremanagementsystemswasconsidered.
§ BackgrounddescriptionsofstatisticsofmanurehandlinginEUanddescriptionsofmanurehandlingineachcountry(Appendix).
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Manureismainlyhandledasslurry
§ DatafromEurostatandnationalstatisticsshowthatalargeportionofmanureineachcountryishandledasslurry.
§ AllthenationalexpertsconsideredimplementingSATsasrelevantfortheirrespectivecountries.
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In-field SATs most applicable inBSR§ TheIn-fieldSATswereconsideredthemostapplicableSATforimplementationintheBSR.
§ Theyareflexibleandmobileandingeneralhavethelowestacidconsumption.
§ In-fieldacidificationtechniques couldalsobeavailabletosmallerfarmsthroughagriculturalcontractorsorfarmers’cooperation
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In-storage,before spreading:thesecondmost interesting SAT
§ Mobileequipmentisidealforcontractorsandco-operations,possibletotreatalotofslurry.
§ Anotheradvantageisthatoncetheslurryisacidified,anyavailablespreadingequipmentcanbeused.
§ Themajordrawbackisthatextrastoragecapacityisneededduringacidificationduetoextensivefoaming.Mostfarmersdonothavethisextrastoragecapacity,soifstoragesarefull,someslurrywouldhavetobespreaduntreatedbeforetherestofthetankcouldbeacidified.
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In-houseSATtheleast interesting§ ThestationaryIn-houseSATwasthoughttobeoflessinterestinmostcountries,sinceitisperhapsthehardestSATtoimplementintoexistingmanurehandlingsystems.
§ InstallingIn-HouseSATinexistinganimalhouseswould,inmanycases,probablyrequirere-constructionofslurrychannels.
§ InsomecountrieslikeEstoniaandSweden,flushingsystemsinsidethebarnarecurrentlynotallowedduetoregulations.Instead,dailymuckingoutwithscrapersareexisting(lowammoniaemissionsinbarn).
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In-pre-storage,slurry sentto storage (long-term)§ InterestinusingtheIn-houseSATforacidifyingallslurrybeforesendingittostorage
§ Likelyeasiertoimplementintoexistingmanurehandlingsystems.Itisstillastationarysystemforaspecificfarm,butinstallationwouldbesimpleranditwillreduceemissionsbothfromstorageandspreading.(Ifmeasuresexistonstorage,e.g.crust,lessneeded).
AcidBuffering/mixing tankStorage
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EstimateonpotentialforSATimplementationonfarmsineachcountryFarm-levelinvestment(FLI),agriculturalcontractororfarmercooperation(AC/FC)
In-house In-storage, long term
In storage, before spreading In-field
SATs
Mixing/ buffer-ing pit
In pre-storage, pumping pit
In main storage
Acidification during spreading
Country Relevant FLI FLI FLI AC/FC FLI AC/FC FLI AC/FC
Estonia Yes x x x x x
Finland Yes x x Xa x
Germany Yes x
Latvia Yes x(2) x(2) x(1)
Lithuania Yes x x x x x
Poland Yes xb x x x x x x
Sweden Yes x x x(2) x(1)
In total 7 1 5 0 3 2 6 4 79
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Some bottlenecks forimplementing SAT§ In-houseSATmay require re-construction of animalhousing
§ In-houseandIn-storage SATs may have higher demand onconcrete quality (WP2)
§ Economy?Benefits andcosts will bestudied inWP5.
§ Safety?Need of extratraining with some SATs.
§ Need of extrastorage capacity because of foaming instorage.
§ ExistingIn-fieldSATnotpossibletousebecauseofrulesforusingandtransportingacid(Germany).
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Concluding remark
§Ingeneral,thereisagoodpotentialtoimplementcurrentlyavailableSATsintoexistingmanurehandlingsystemsinBalticSeaRegioncountries.Mostoftheidentifiedbottleneckscouldbedealtwith.