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1 INTRODUCTION 1.1 Terms of Reference In September 1993 Environment Canada - Supply and Services Canada, Pacific Directorate retained NovaTec Consultants Inc. (NovaTec) to carry out a study and to prepare a Guide for Best Management Practices for process water management at fish processing plants in British Columbia. Fish processing is a major industry in British Columbia and the liquid wastes from such production constitute a significant load to either the municipal sewage collection and treatment systems or the surface waters into which the plants discharge their wastes. A document was needed to provide a reference source and technical guidance to minimize potential environmental impacts cost-effectively. The scope of the study as defined in the Terms of Reference is to: ● collect and summarize available literature and case information in the area of fish processing technology, wastewater treatment, and waste disposal practices at fish processing facilities throughout the world, and specifically in British Columbia; ● summarize the available information on wastewater treatment technology in the context of best available technology appropriate to fish processing; ● summarize and analyze the present practices used within the Lower Fraser Basin including an assessment of the applicability of different components at other facilities within the Basin and elsewhere in the province; ● summarize the size, economic value, diversity, profitability, and trends within the British Columbia fish processing industry, and assess the probable impact of various investments, and present case studies. 1
● provide a guidance document for regulatory bodies, and for use throughout the industry, and others concerned with the building of new facilities or the upgrading of existing ones. 1.2 Project Objectives The objectives of the Guide for Best Management Practices - Process Water Management at Fish Processing Plants in B.C. are: ● to give a comprehensive review of the best processing technologies, treatment technologies and wastewater management options; ● to outline the feasibility of process improvements, water conservation, byproduct recovery and wastewater treatment in a comprehensive manner. 2
Page 2 and 3: Environment Canada Industrial Progr
Page 4 and 5: ACKNOWLEDGEMENTS This document was
Page 6 and 7: TABLE OF CONTENTS ACKNOWLEDGEM’EN
Page 8 and 9: 5.4 5.5 BEST 6.1 6.2 6.3 5.3.4.2 Ot
Page 10 and 11: Figure 2.1 Figure 2.2 Figure 2.3 Fi
Page 12 and 13: Table 5.8 Table 5.9 Table 5.10 Tabl
Page 16 and 17: 2 BACKGROUND INFORMATION 2.1 Genera
Page 18 and 19: 1992a). In 1990, approximately 70 %
Page 20 and 21: Development of aquiculture (husband
Page 22 and 23: REDUCTION PLANT Q \ \ PRINCE RUPERT
Page 24 and 25: 2.4 Review of Current Regulations 2
Page 26 and 27: 2.4.3 Municipal and Regional Bylaws
Page 28 and 29: Table 3.1 Water Consumption Rates -
Page 30: 3.2 Wastewater Characteristics 3.2.
Page 33 and 34: Table 3.4 Contaminant Concentration
Page 35 and 36: 3.2.2 Fish Processing Facilities in
Page 37 and 38: Table 3.7 Production-based Contamin
Page 39 and 40: which are permitted to grind and di
Page 41 and 42: 4 PROCESSING TECHNOLOGY The five ma
Page 43 and 44: ---- ,,, ,,, > “\ - Y’ I r ----
Page 45 and 46: VESSEL-HOLD WATER PACKERS AND RECIR
Page 47 and 48: && a- * I ---- ————-— --
Page 49 and 50: 4.4 Herring Processing 4.4.1 Genera
Page 51 and 52: Raw shrimp are held on ice for abou
Page 53 and 54: ~ 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 ———-
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offal with wastewater, which is the
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equipment clean and to flush offal
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Table 5.4 Solid Waste Generation at
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process water. However, different r
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5.2.4 Contaminant Reduction Several
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Fine screening is generally used as
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to coagulate proteins, cooling and
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Table 5.6 Summary of FM Proceeding
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5.3.4.3 Enhanced Gravity Settling T
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To the knowledge of the authors, on
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To the knowledge of the authors, no
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5.3.6.2 Hydrocyclones Hydrocyclones
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Solid wastes generated by seafood p
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Table 5.10 Results of Applications
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5.4.9 Bone Meal Experiment conducte
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The comporting operation consists o
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● ● ● ● ● ● ● ● ●
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● / use of finer mesh screens (do
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7 ECONOMIC ANALYSIS 7.1 Review of t
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wholesale and landed values as a me
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7.2 Processing Technology Treatment
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(~nuJ!WU Jo %) SONICINVl u) (9 I <
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conservation and the implementation
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In-house modifications can result i
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Table 7.3 Expected Efficiency of Wa
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Table 7.4 Assumptions used for Econ
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quo had been maintained. For each t
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All cost estimates involving DAF un
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meet toxicity limits. However, biol
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BIBLIOGRAPHY Aegis Management Servi
Page 124 and 125:
Fukuda H. and H. Nakatani. Treatmen
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Johnson R.A. and S.M. Gallanger. Us
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NovaTec Consultants Inc.. Village o
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( Takei M.. Treatment of Waste Wate
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