Figure 45. Summary of yield and economic losses by processing step


PUMPWATER 1 SCREENS ONLY PUMPWATER 1 AND 0.5 MM SCREENS BLOOD WATER RECOVERY ADDED STICKWATER RECOVERY ADDED VALUE BASED ON $381/TON FOR FISHMEAL
FRESH FISH 250 KG MEAL
40 KG OIL
250 KG MEAL
40 KG OIL
250 KG MEAL
40 KG OIL
250 KG MEAL
40 KG OIL
$ 95.25
$ 12.96
PUMPWATER




1 MM SCREEN 20 KG 20 KG 20 KG 20 KG $7.62
FURTHER TREATMENT -31 KG -31 KG -31 KG -31 KG $11.81
BLOODWATER EVAPORATION -20 KG -20 KG -20 KG -20 KG $ 7.62
PRESSCAKE 121 KG 121 KG 121 KG 121 KG $46.10
DECANTER + SEPARATOR 10 KG 10 KG 10 KG 10 KG $ 3.81
STICKWATER EVAPORATION -48 KG -48 KG -48 KG -48 KG $18.29
PUMPWATER




MEAL YIELD 151 KG 182 KG 202 KG 250 KG $95.25
% YIELD, MEAL 60.4% 72.8% 80.8% 100%
CONVERSION 6.6:1 5.5:1 4.95:1 4:1

CALCULATED FOR 100KG OF FISH CONTAINING 200 KG DRY SOLIDS PLUS 90 KG FAT, ASSUME FRESH FISH.
IOL YIELD 40 KG PER TON OF FISH OR 4%