Methane potential of sterilized solid slaughterhouse wastes.
Bioresour Technol
; 116: 42-6, 2012 Jul.
Article
in En
| MEDLINE
| ID: mdl-22609653
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 m(3) CH(4)/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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Waste Products
/
Refuse Disposal
/
Sterilization
/
Abattoirs
/
Methane
Limits:
Animals
Country/Region as subject:
Europa
Language:
En
Journal:
Bioresour Technol
Journal subject:
ENGENHARIA BIOMEDICA
Year:
2012
Document type:
Article
Affiliation country: