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Cross-flow filtration of fruit juice


Table 10.6. Operation and maintenance of the filtration technology (output)
 
Output      
Parameter The centrifuge The vacuum filter The Filtomat filter unit
Juice capacity (m3 juice pr. hour) Capacity: 10 m3/h Capacity BC: 7 m3/h
ó 0,78 m3/h/m2
Capacity C: 5 m3/h
ó 0,54 m3/h/m2		 Capacity: 20 m3/h (water)
10 m3/h juice (a guess)
ó 10 m3/h/m2
Wastewater from cleaning
(l wastewater and the expenses, Kr/m3 juice)

Chemicals for the CIP
Program:
Base and oxonia ca.
500 l. /a cleaning.
ca. 298* times cleaning/year
500 l*298 =
148900 l/year
Costs:
(148,90 m3 * 7,92 Kr/m3) /
9247,6 m3 = 0,13 Kr/m3

 3600 l / a cleaning
ca. 88 cleanings a year
3600 l * 88 times
= 316800 l/year
l/m3 juice:
316800 l / (871,74 m3 + 1342,88 m3) = 143,05 l/m3
Costs:
(316,80 m3 * 7,92 Kr/m3) /
(871,74 m3 + 1342,88 m3) = 1,13 Kr/m3		 Chemicals for the CIP
Program:
Base and oxonia ca.
0,2 l /a cleaning.
ca. 298 times cleaning/year
0,2 l*298 =
60 l wastewater/year
Total use of washing water:
480,96 l + 575,76 l = 1056,72 l
Total use:
1056,72 l + 60 l = 1116,72 l
l/m3 juice:
1116,72 l / 10808 m3 = 0,103 l/m3
Costs:
(1,12 m3 * 7,92 Kr/m3) /
10808 m3 = 0,001 Kr/m3
Waste (The expenses, Kr/m3juice) None 11,073 ton * 50 kr/ton =
553,65 Kr.
553,65 Kr / (871,74 m3 + 1342,88 m3) = 0,25 Kr/m3		 None