298 94 307/02 Untersuchungen zum Stand der Umsetzung des ...

Substrate name Amount
per cattle
per hen
a: per pig
b:
c:
Stomach and bowel contents a: Stomach 0,5 - 1,0 l
Rumen contents
Teil 3 Seite 3-9
Bowel contents 2,5 l
Of which small intestine 0,3 l
3.1.6 Slaughterhouse waste water treatment
Condition
TR = 10 %
oTR = 80 - 84 % d. TR
ca. 75 g/l COD
ca. 44 g/l BOD5
ca. 8 g/l Ntotal
ca. 60 g/l COD
ca. 35 g/l BOD5
ca. 8 g/l Ntotal
ca. 0,8 g/l Ptotal
b: bowel contents 18 l TR = 8 - 10 %
oTR = 80 - 87 % of TR
15 g/l BOD5
8 g/l Ntotal
approx. 40 - 80 l TR = 11 - 13 %
oTR = 80 - 87 % of the TR
C/N ratio 17 - 21
Raw protein: 105-173 g/(kg
TR)
Raw fat: 15 - 31 g/(kg TR)
Raw fibre: 256 - 391 g/(kg TR)
Nitrogen: 20 - 22 g/(kg TR)
Phosphorous: 5 - 6 g/(kg TR)
Potassium: 4 - 5 g/(kg TR)
Calcium: 6 - 8 g/(kg TR)
Sodium: 9 - 15 g/(kg TR)
Magnesium: 0,8 - 1 g/(kg TR)
The following table gives an overview of the composition of slaughterhouse wastewater:
Table 3-5: Amount and composition of the residues produced during the wastewater
Sieve and rake material
(green line)
Sieve and rake material
(red line)
Solids from the dewatering (yellow
line) of rumen contents
treatment of slaughterhouse wastewater
1 mm aperture width
i 1 l/SE
with dewatering implement ca. 0,5
l/SE
1 mm aperture width
i 0,3 kg/SE
TR = 15 %
TR = 30 - 35 %
TR = 20 %
oTR = 95 - 99 % d. TR
300 - 450 g/(kg TR) COD
500 mg/(kg TR) NH4-N
b: 0,4 - 0,5 m 3 /(m 3 rumen contents) TR = 25 – 30 %
oTR = 80 - 90 % d. TR
C/N ratio 11 - 20
Mineral substances:
53 - 103 g/(kg TR)
Fat: 25 - 83 g/(kg TR
Protein: 71 - 111 g/(kg TR)
Raw fibre and nitrogen:
757 - 825 g/(kg TR)
Phosphorous: 4,6 g/(kg TR)
Potassium: 4,9 g/(kg TR)
Calcium: 5,3 g/(kg TR)
Sodium: 9,5 g/(kg TR)
Magnesium: 0,8 g/(kg TR)