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water conservation programs is only 6 L/kg, whereas typical water consumption for
salmon processing plants in B.C. is 10 to 30 L/kg (Table 3.2). A B.C. fish processing
facility that recently replaced manual salmon gutting lines with semi-automatic vacuum
suction lines (see Section 4.3. 1) experienced a reduction of its water consumption by
almost 90 to 95 %. “Water consumption at this facility decreased from 28-75 L/kg to
only about 3.5 L/kg (NovaTec and EVS, 1994).
Water consumption for groundfish and groundfish/salmon processing at Lower Mainland
fish processing plants is lower than the water consumption reported in the literature for
groundfish processing plants (Table 3.1). Measures to further reduce water consumption
are discussed in Sections 5.2.2 and 6.2.
,
Table 3.2 Water Consumption Rates - B.C. Lower Mainland Fish Processing
Plants
Type BC Water Typicai industry
Consumption - Water Consumption - Reference
Range [L-/kg] Range [L/kg]
Salmon (hand butchered) 7-32 10-15 NovaTec and EVS, 1994
Salmon (mech. butchered) 3-326 10-30 NovaTec and EVS, 1994;
NovaTec, 1993c
Salmon, groundfish 2-163 7-27 NovaTec and EVS, 1994
Groundfish, halibut 5-35 6-20 NovaTec and EVS, 1994
Herring 1.5-50 5-30 NovaTec and EVS, 1994;
NovaTec, 1993c
Surimi ! 14* Aquametrix, 1993a
Surimi I 13- 14* I Aquametrix, 1993b
45-52 **
* Per kg of round fish
** Per kg of product
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