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63 Cards in this Set
- Front
- Back
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what is highly concentrated salt water or fluid produced during distillation?
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Brine
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what are the two types of brominator?
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Automatic proportioning brominator
& Recirculationg type brominator |
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what injects bromine via resin impregnated cartridge to disinfect shipboard potable water?
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Brominator
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what is designed ot "inject bromine between potable water tanks?
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Recirculating type brominator
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what is designed to release a proportioned amount of bromine to a given flow rate of H2O as it leaves the distillation plant?
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automatic proportioning brominator
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what are the three types of distillation plants used?
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Steam (boiler)
Heat recovery/"waste heat" (gas tubine) Vapor compression (electrical |
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what must the final product of Distillate be?
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less then 2.3 ppm (salinity)
or .065 epm |
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what must happen to all distillate used for potable water be before consumption?
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disinfected to .2 to 2.0 ppm (FAC)
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What is the term for Sea water feeding to Distilling or R. O. plants?
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feed water
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how long must you maintain your chronological record of surveillance?
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two years
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what is the process used to remove dissolved ions from water?
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Reverse osmosis
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what is the term for mechanical pressure used to force water to flow in the direction that is the reverse of natural osmosis?
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reverse osmosis
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What occures when pressure is used to force water through a semi-permeable membrane, from 200 - 1200 psi and reject most suspended or dissolved materials?
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reverse osmosis
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who is responsible for shipboard potable water?
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NAVSEASYSCOM
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who is responsible for promulgating instructions for ship to shore connections, &
approved potable water (berthed @ naval facilities)? |
NAVFACENGCOM
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Who is responsible for promulgateing standards, requirements & surveillance for water quality?
Ashore Afloat & Overseas |
Chief BUMED - surgeon gen.
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what do Area Commanders do?
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Issue directives to ensure adequate H2O sanitation standards on all ships are implemented and enforced?
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who promulgate water sanitation bills to ensure proper:
Receipt Transfer Treatment Storage Distribution Surveillance |
CO
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Who works for NAVSEASYSCOM
and implement all their requirements, including; Ops, Maintenance, amount, & Bacteriological quality of water onboard? |
Engineering Dept.
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who notifies the CO of discrepancies of;
daily halogen residuals bacterial analysis (not quality) adequacy of disinfection? |
Medical Dept.
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old ships:
required drinking water? |
.5 - 1 gallon per man per day
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old ships:
personal hygiene water? |
5.0 - 20 gallon per man per day
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old ship
water requided for laundry? |
5.0 - 10.0 gal/per man / per day
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old ship
Galley/Scullery H2O required? |
1.5 - 4 gallons per man per dya
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How is potable water obtained on ships?
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Reverse Osmosis or Distillation Plant
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what is required to make potable water?
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In-line brominator
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when should water not be distilled? except an emergency
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1. w/in harbors (less than 10-12 miles from shore
2. close formation of another ship (1,000 yards) 3. emptying bilges or tanks forward the intake |
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what is a requirement for shore to ship H2O deliivery?
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approved sources (u.s. owned or operated)
USPHS approved or allies British, Canada, Aussies |
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what are requirements of unapproved sources, shore to ship water transfer?
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1. examined by medical
2. brominated and be 2.0ppm TBR after :30 contact time 3. if unable to brominate then chlorinate, "Batch Method" and hold @ 2.0 ppm FAC for :30 |
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who must approve equipment located within a food service space/
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BUMED
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what is necessary for maximizing space utilization,
requires careful monitoring, & never filled with ballast water unless necessary to ship survival? |
Potable water tanks
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what should have physical separation or disconnection of:
fittings lines pumps tanks? |
potable water tanks
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potable water system vents and overflows should have what kind of screen?
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screened with 18 gauge, non-corrosive mesh
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sounding tubes should have what labeled on them?
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potable water use only
on a clearly labeled ID plate |
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Disinfection in 100 ppm FAC for 2 minutes & a "POTABLE WATER USE ONLY" are requirments for what?
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steel tape sounding tubes
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give 3 potable water hose locker requirements?
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Vermin proof
Locked 18 inches off deck |
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in what intervals should you label potable water hoses?
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q 10' in dark blue
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when does Medical Dept. check halogen residual ?
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prior to initial transfer
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all hose connection points must be disinfected, how?
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1. immersion or rinsing
2. 100 ppm FAC solution 3. 2 minutes |
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should you test halogen residual routinely or prior to receipt ot potable water?
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yes to both
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what do the DPD #s mean?
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halogen residuals test
DPD 1 - FAC or TBR DPD 4 - TCR (chloramines) 4 for shore |
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what must be at what 2.0 ppm at the point of consumption?
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water
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at a minimum what must halogen residual be at its distibution points?
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0.2 ppm
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how many samples are taken following a positive sample and where?
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three within 24 hrs
original site & one up and down stream each not more then 5 stations away from failure station |
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what is the calcium hyperclorite (HTH) rule of thumb?
per 5,000 gallons- |
one once of HTH per 5,000 gallons will yield 1.0 ppm FAC
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what methods is used to manually disinfect water with chlorine?
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Batch Method
Brominator Required Halogen Residuals |
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who approves use of steam to control taste and odor problems?
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NAVSEASYSCOM
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how much chlorine do you use to control taste and odor problems?
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5.0 ppm FAC
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how much chlorine do you use to maintain taste and odor problems?
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2.0 ppm FAC
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how are the three distillation plants classified?
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by type of heat source used
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what method of manual chlorine disinfection does large quantities of water and uses HTH calculation?
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Batch
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what disinfectent uses yellow liquid "supernatant"
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batch method
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which type of brominator has a dual feed valve and operates on one of two fixed flow rates?
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automatic proportioning
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what type of brominator can draw water from any potable water tank then injects bromine?
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recirculating type
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What is the chlorine level required when testing halogen residuals for approved sources?
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0.2 ppm with 30 min. contact
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What is the chlorine level required when testing halogen residuals for unapproved sources?
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2.0 w/ 30 min contact
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What is the chlorine level required when testing halogen residuals for tanks and systems?
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50 ppm w/ 4 hr. contact
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What is the chlorine level required when testing halogen residuals for hose/ riser/ couplings disinfection?
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100 ppm w/ 2 min contact
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What are the requirments for storing HTH bottles?
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Engineering office space
6 ounce bottles cool, dry, vented locked box mounted to bulkhead |
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what has a corrosive and chemically active nature?
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HTH
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what is the max amount of HTH bottles that can be stored in any individual locker or bin?
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48 six ounces bottles
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what is the shelf life of Bromine?
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normal shelf life of two years from date of manufacture
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how long do do you maintain the potable water logs?
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two years minimum
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