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Plant 1: Roe herring, salmon (both for the frozen market, and canning), and groundfish processing; Plant 2: Roe herring and salmon (fresh and frozen) processing; Plant 3: Salmon (fresh and frozen) and groundfish processing. Of the three plants, only Plant 1 operated each month in 1993, however, the amount of processing varied tremendously in all three plants. The fact that groundfish was processed (which generally can be processed year-round, depending on fisheries openings) did not result in a more steady production than occurred with salmon canning and roe herring processing plants. 7.2.4 Labour Costs Labour costs are a substantial contributing factor to the overall production cost. At least one process modification in fresh/frozen salmon processing which has been implemented in a number of B.C. processing facilities to reduce Iabour costs has resulted in a substantial decrease in water consumption and may also be used to improve the quality of the generated wastewater. The process modification involves the installation of vacuum lines for cleaning salmon following manual gutting, as described in Section 4.3.1. These systems cost between $70,000 and $140,000, depending on the configuration selected. According to observations made in a processing plant, the system increased the throughput from 300 to 385 pounds of fish ,per worker to 520 to 630 pounds per worker. In addition, the system used less water. Transporting the entrails and collected blood directly to an offal hopper rather than discharging this waste stream into the wastewater collection system would also improve the quality of the process water, as contaminants would be prevented from mixing and solubilizing in water. In order to use these systems, the fish being processed must be of relatively uniform size. Manual butchering and cleaning may still be necessary for fish which do not meet this requirement. 7.2.5 Water Rates Water usage can result in large costs to processing plants. Even plants which pay a nominal fee for the water they consume are expected to benefit from a reduction in water consumption, as this would be associated with a reduction in discharge permit fees. Declining-block rate structures in place in a number of jurisdictions do not promote water 94
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Environment Canada Industrial Progr
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ACKNOWLEDGEMENTS This document was
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TABLE OF CONTENTS ACKNOWLEDGEM’EN
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5.4 5.5 BEST 6.1 6.2 6.3 5.3.4.2 Ot
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Figure 2.1 Figure 2.2 Figure 2.3 Fi
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Table 5.8 Table 5.9 Table 5.10 Tabl
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1 INTRODUCTION 1.1 Terms of Referen
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2 BACKGROUND INFORMATION 2.1 Genera
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1992a). In 1990, approximately 70 %
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Development of aquiculture (husband
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REDUCTION PLANT Q \ \ PRINCE RUPERT
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2.4 Review of Current Regulations 2
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2.4.3 Municipal and Regional Bylaws
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Table 3.1 Water Consumption Rates -
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3.2 Wastewater Characteristics 3.2.
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Table 3.4 Contaminant Concentration
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3.2.2 Fish Processing Facilities in
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Table 3.7 Production-based Contamin
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which are permitted to grind and di
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4 PROCESSING TECHNOLOGY The five ma
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---- ,,, ,,, > “\ - Y’ I r ----
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VESSEL-HOLD WATER PACKERS AND RECIR
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&& a- * I ---- ————-— --
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4.4 Herring Processing 4.4.1 Genera
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Raw shrimp are held on ice for abou
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~ PRODUCT — WASTEWATER ----- WATE
Page 55 and 56: -+ \ /’WATER’l \~uPPLY/ ‘T-
Page 57 and 58: 5 WATER AND WASTE MANAGEMENT 5.1 Cu
Page 59 and 60: Information Grind and Discha Coarse
Page 61: Table 5.1 Permit Summary ———-
Page 64 and 65: offal with wastewater, which is the
Page 66 and 67: equipment clean and to flush offal
Page 68 and 69: Table 5.4 Solid Waste Generation at
Page 70 and 71: process water. However, different r
Page 72 and 73: 5.2.4 Contaminant Reduction Several
Page 74 and 75: Fine screening is generally used as
Page 76 and 77: to coagulate proteins, cooling and
Page 78 and 79: Table 5.6 Summary of FM Proceeding
Page 80 and 81: 5.3.4.3 Enhanced Gravity Settling T
Page 82 and 83: To the knowledge of the authors, on
Page 84 and 85: To the knowledge of the authors, no
Page 86 and 87: 5.3.6.2 Hydrocyclones Hydrocyclones
Page 88 and 89: Solid wastes generated by seafood p
Page 90 and 91: Table 5.10 Results of Applications
Page 92 and 93: 5.4.9 Bone Meal Experiment conducte
Page 94 and 95: The comporting operation consists o
Page 96 and 97: ● ● ● ● ● ● ● ● ●
Page 98 and 99: ● / use of finer mesh screens (do
Page 100 and 101: 7 ECONOMIC ANALYSIS 7.1 Review of t
Page 102 and 103: wholesale and landed values as a me
Page 104 and 105: 7.2 Processing Technology Treatment
Page 108 and 109: conservation and the implementation
Page 110 and 111: In-house modifications can result i
Page 112 and 113: Table 7.3 Expected Efficiency of Wa
Page 114 and 115: Table 7.4 Assumptions used for Econ
Page 116 and 117: quo had been maintained. For each t
Page 118 and 119: All cost estimates involving DAF un
Page 120 and 121: meet toxicity limits. However, biol
Page 122 and 123: BIBLIOGRAPHY Aegis Management Servi
Page 124 and 125: Fukuda H. and H. Nakatani. Treatmen
Page 126 and 127: Johnson R.A. and S.M. Gallanger. Us
Page 128 and 129: NovaTec Consultants Inc.. Village o
Page 130: ( Takei M.. Treatment of Waste Wate
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