6533b7d9fe1ef96bd126ba63
RESEARCH PRODUCT
Methane potential of sterilized solid slaughterhouse wastes.
Peep PitkRaivo ViluPrasad Kaparajusubject
EstoniaEnvironmental EngineeringMeatta1172Sus scrofaBioengineeringPoultryRendering (animal products)BiogasAnimalsBiomassWaste Management and DisposalWaste ProductsWaste managementRenewable Energy Sustainability and the EnvironmentChemistrySterilizationGeneral MedicineMeat and bone mealRefuse DisposalManureWaste treatmentAnaerobic digestionBiodegradation EnvironmentalWastewaterBiofuelBatch Cell Culture TechniquesThermodynamicsSewage treatmentCattleMethaneAbattoirsdescription
Abstract The aim of the current study was to determine chemical composition and methane potential of Category 2 and 3 solid slaughterhouse wastes rendering products (SSHWRP) viz. melt, decanter sludge, meat and bone meal (MBM), technical fat and flotation sludge from wastewater treatment. Chemical analyses showed that SSHWRP were high in protein and lipids with total solids (TS) content of 96–99%. Methane yields of the SSHWRP were between 390 and 978 m3 CH4/t volatile solids (VS)added. Based on batch experiments, anaerobic digestion of SSHWRP from the dry rendering process could recover 4.6 times more primary energy than the energy required for the rendering process. Estonia has technological capacity to sterilize all the produced Category 2 and 3 solid slaughterhouse wastes (SSHW) and if separated from Category 1 animal by-products (ABP), it could be further utilized as energy rich input material for anaerobic digestion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-09 | Bioresource technology |