port saint nicholas hatchery - amazon s3 · 2014. 1. 6. · port saint nicholas hatchery author:...
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Port Saint Nicholas Hatchery
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Project Goals
Provide 250,00 hatchery supplemented 1+ smolt chinook production for the Craig area egg through smolt
Ultimately production is geared to increasing sport catch in Craig area
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Participants / Partners
Prince of Wales Hatchery Association
City Of Craig SSRAA - eyed eggs(Chickamin)
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Program Funding
PSN Hatchery construction funded by SSF and community economic grant
Operational funding is from a combination of SSF, Craig salmon derby proceeds, charter operators donations, community support
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Technology
Conceived as a complete incubation and rearing facility – benefits
Multi- mode operation as full flow through, partial reuse or limited flow and SSO2 (supersaturated oxygenated water) augmented.
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Building
20’x60’ -prefab 20,000$ total package Split into four rooms with separate entries Incubation - with interior access from mechanical Mechanical Feed storage and shop area Small office with bathroom and shower City of Craig erected building and installed
electrical Also provided fill to grade and D-1 Slap was contacted and cement was at reduced
rate
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mechanical incubation
20’ X 60’
feed storage
office
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Water Supply
Via 12 mile single pipeline from a 100 acre lake at 600 feet elevation that supplies Craig water treatment plant – gravity flow – 12 inch main – 205 PSI – side-tapped with 8 inch to enter building at
proximity of water treatment plant – pressure reduced by 4 PRV’s inside mechanical
room. – Temperature fluctuations from 2C to 18C – Reasonably clean and silt free
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Pressure Utilization • Pressure is reduced to 3 PSI levels for Hatchery
use • Process water reduced to 24 to 30 PSI through
main and back up water supply. (Variable) • SSO2 supply at variable 40 to 60 PSI to feed
oxygen contactor • - High pressure supply variable from 60 to 90 PSI --
- venturi introduction of oxygen to contactor - operates venturi system for degassing at column - offers a venturi option for suction wand attachments for mort removal
• high pressure water delivery to various points around the hatchery for high pressure cleaning.
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Process Main
Process Backup
SSO2 Supply
High Pressure
210 PSI
24-30 PSI
24-30 PSI 60-90 PSI
60-90 PSI
Water supply manifold cross tied for PRV maintenance or emergency procedures
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Oxygenation
• An oxygen generator provides oxygen for the SS02 system
• 35LPM Oxair with a compressor that can output finished product at 90 psi with an integral compressor at 95% purity.
• Self contained storage for O2 . • Back up is bottled 02 set in parallel slightly
under regulated output pressure of the O2 compressor on the Oxair 35 negating need for a solenoid to induce 02 in event of a failure
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To obtain SS02 we need pressure regulated amounts of water and oxygen and pressure capable vessel (contactor)
O2 injection @90 PSI with mazzi injector
H20 @ 60PSI Pressure gauges and regulator
60 PSI PRV
90 PSI PRV
60 PSI delivery
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SSO2 out
SSO2 takeoff to incubation
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Drainage
• Built in waste scavenging system to clarify reuse water prior to re-circulation
• Cone or waste settling sump as part of drain system
• Purge pipe and valve to drain sump that redirects waste to settling pond
• Cone also helps alleviate concerns about downstream pollution effects
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Drain
Perf screen
Velocity abatement screen
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Drain to column
Waste purge line Waste scavenging cone
Drain valve for purge line
Main process water
SSO2
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Conditioning Columns
• Each conditioning column is the basis for its own re-circulation unit
• Each column consists of a de-gasser, a reservoir, collector sump , standpipe sump, pump sump, electric submersible pump and variable speed controller
• Each column is also fitted with process water delivery, re-circulated water delivery, high pressure and venturi options as well as SSO2 injection into the reservoir.
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Venturi degassing line
reservoir
SSO2 ring supply
Recirc line
Control box
SSO2
Pump sump
Venturi/HP
Main H2O supply
O2 gas
Waste purge line Collector
Standpipe sump
HP line
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220 V 3hp Submersible
90 lbs..
Tuned impellers provide 600 GPM to 12ft. head
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Digital variable frequency drive
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Incubation
Features heated and chilled re-circulation Optional Heath Tray or Kitoi incubation Limited indoor rearing with troughs SSO2 supplementation HP wash-down
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Construction Detail
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