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Lokal behandling av slakteriavfall minskar kostnaderna

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Skriv ut
Överordnad kategori: Finansnyheter
Träffar: 1887

Att ta hand om slakteriavfall, är en stor utgiftspost för småskaliga slakterier. Enligt JTI – Institutet för jordbruks- och miljöteknik, skulle slakterier som hanterar 5 000 slaktsvin per år kunna minska kostnaderna med hälften genom att behandla sitt avfall lokalt. 


På ett småskaligt slakteri blir det förhållandevis små avfallsmängder, men avfallet måste ändå hämtas ofta, och detta orsakar höga kostnader. Forskare vid JTI har tillsammans med Sveriges småskaliga kontrollslakteriers förening undersökt två olika vägar att komma till rätta med de småskaliga slakteriernas behov av hämtning av slaktavfall.

Dels har de undersökt om avfallet (kategori 3-material enligt regelverket) går att göra lagringsstabilt under en längre tid, så att hämtningarna slipper göras lika ofta. Dels har de undersökt om avfallet går att behandla lokalt, under förutsättning att det finns metoder som uppfyller kraven i animaliska biproduktsförordningen och som ger lägre kostnader.

- Det går att göra slakteriavfall lagringsdugligt i minst tre månader genom att först mala det och sedan blanda det med melass eller myrsyra, säger Ola Palm vid JTI.

Tillsatsmedlen sänker pH-värdet, vilket gör att nedbrytningen förhindras och luktproblemen minskar. Den metoden gav ingen ekonomisk vinst vid hantering av 1 000 slaktsvin per år, jämfört med nuvarande hämtningsrutiner, utan krävde 5 000 slaktsvin eller motvarande per år för att bli ett ekonomiskt alternativ.

Kostnadskalkyler togs fram för behandlingsalternativen satsvis hygienisering av malt slakteriavfall med efterföljande kompostering respektive reaktorbaserad, sluten kompostering av malt slakteriavfall. Vid en omfattning av 5 000 slaktsvin per år, gav reaktorkomposteringen en halvering av kostnaden, jämfört med nuvarande hämtningsrutiner.

Publicerad: 2008-09-30

Källa: www.jti.se ; JTI; Hämtad 13 oktober 2008


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