Shane
> -----Original Message-----
> From: Nick Zarlinga
> Sent: Wednesday, January 21, 2004 3:18 PM
> To: nanfa_at_aquaria.net
> Subject: RE: NANFA-- a lil' help from my friends....
>
>
> Ok, I have yet to go over your calculations, however 44 +
> million gallons is
> is the size of a lake! That would surley make it the largest
> aquarium in
> the world-several times over!!!!
>
> I think there has to be a decimal problem here.
>
> Nick Zarlinga
> Aquarium Biologist
> Cleveland Metroparks Zoo
> 216.661.6500 ext 4485
>
>
> ><)> -----Original Message-----
> ><)> From: owner-nanfa_at_aquaria.net
> ><)> On Behalf
> ><)> Of Shane Graber
> ><)> Sent: Wednesday, January 21, 2004 1:55 PM
> ><)> To: 'nanfa_at_aquaria.net'
> ><)> Subject: RE: NANFA-- a lil' help from my friends....
> ><)>
> ><)>
> ><)> If you know how much salt you added and what the
> ><)> resulting salinity is in
> ><)> ppt, you should be able to do a simple calculation
> ><)> to figure it out.
> ><)> Salinity in ppt is nothing more than grams of salt
> ><)> per liter of water so if
> ><)> you know that you added X grams of salt to an
> ><)> unknown volume of water and
> ><)> got a resulting salinity (ppt), a simple
> ><)> calculation should tell you the
> ><)> answer.
> ><)>
> ><)>
> ><)> grams NaCl
> ><)> ---------- x 10^3 = ppt
> ><)> Liter
> ><)>
> ><)>
> ><)> 800 lbs NaCl = 362873.9 grams. Resulted in a
> ><)> salinity of 2.2 ppt.
> ><)> 600 lbs NaCl = 272155.4 grams. Resulted in a
> ><)> salinity of 1.2 ppt.
> ><)> 400 lbs NaCl = 181436.9 grams. Resulted in a
> ><)> salinity of 1.1 ppt.
> ><)> 200 lbs NaCl = 90718.47 grams. Resulted in a
> ><)> salinity of 0.6 ppt.
> ><)>
> ><)> The input water was 0.1 ppt so subtract 0.1 from
> ><)> all salinity values to
> ><)> adjust for the raw water (see below).
> ><)>
> ><)> Solve for liters and convert to gallons:
> ><)>
> ><)>
> ><)> # liters = (grams NaCl x 10^3)/ppt
> ><)>
> ><)>
> ><)> _at_ 800 lbs:
> ><)> # liters = (362873.9 grams NaCl x 10^3)/2.1 ppt =
> ><)> 172,754,238 L
> ><)> # gallons = # liters / 3.785412 gal/L =
> 45,636,839 gallons
> ><)>
> ><)>
> ><)> _at_ 600 lbs:
> ><)> # liters = (272155.4 grams NaCl x 10^3)/1.1 ppt =
> ><)> 247,414,000 L
> ><)> # gallons = # liters / 3.785412 gal/L =
> 65,359,860 gallons
> ><)>
> ><)>
> ><)> _at_ 400 lbs:
> ><)> # liters = (181436.9 grams NaCl x 10^3)/1.0 ppt =
> ><)> 181,436,900 L
> ><)> # gallons = # liters / 3.785412 gal/L =
> 47,930,555 gallons
> ><)>
> ><)>
> ><)> _at_ 200 lbs:
> ><)> # liters = (90718.47 grams NaCl x 10^3)/0.6 ppt =
> ><)> 151,197,450 L
> ><)> # gallons = # liters / 3.785412 gal/L =
> 39,942,138 gallons
> ><)>
> ><)>
> ><)> I believe that your salinity and conductivity
> ><)> reading that you took after
> ><)> you had added 600 lbs salt to the tank is off so
> ><)> omit that reading and find
> ><)> an average of your gallons. I base the omission
> ><)> on drawing a Salinity (ppt)
> ><)> chart vs Conductivity (ms). If that 600 lb
> ><)> reading is omitted the R^2
> ><)> result of that graph is 0.9993. With it, it's 0.9471.
> ><)>
> ><)> I'd say your display tank is about 44,500,000
> ><)> gallons. If I'm right (and
> ><)> I'm pretty sure I am), that's a friggin HUGE tank!
> ><)>
> ><)> Shane
> ><)>
> ><)>
> ><)>
> ><)>
> ><)> > -----Original Message-----
> ><)> > From: Nick Zarlinga
>
> ><)> > Sent: Wednesday, January 21, 2004 8:24 AM
> ><)> > To: Aquatic Information Listserve (E-mail);
> ><)> NANFA List Server (E-mail)
> ><)> > Subject: NANFA-- a lil' help from my friends....
> ><)> >
> ><)> >
> ><)> > Ok, time to put the brain in gear ;) We have
> an outdoor
> ><)> > exhibit that we
> ><)> > need to find the volume of. It is a "naturally"
> ><)> shaped exhibit with a
> ><)> > textured concrete bottom and a deceivingly large
> ><)> "volcano
> ><)> > like" planter in
> ><)> > the middle. We need to find the gallonage to be
> ><)> able to dose
> ><)> > medications.
> ><)> > In October, we had the system drained for
> ><)> repairs and so we
> ><)> > thought we would
> ><)> > be smart and put a flow meter on the system to
> ><)> fill it. Actually, we
> ><)> > thought we would go one better and put two flow
> ><)> meters in
> ><)> > line so that we
> ><)> > had a backup to verify our results. Well,
> ><)> unfortunately, the two flow
> ><)> > meters read vastly different amounts. So now we
> ><)> are back to
> ><)> > square one.
> ><)> > What we decided to do was to go the back door
> ><)> route. By
> ><)> > adding NaCl to the
> ><)> > system, we figure that we can measure conductivity and
> ><)> > extrapolate from
> ><)> > there. So, here is the data. Have at it, if you
> ><)> wouldn't mind.
> ><)> >
> ><)> >
> ><)> > Measurements were taken with YSI 30 conductivity
> ><)> meter which
> ><)> > was on the
> ><)> > temperature compensated mode.
> ><)> >
> ><)> > Day 0 conductivity 268 microsiemens (.1 ppt)
> ><)> at 37F
> ><)> > added 200 lbs of NaCl
> ><)> > Day 1 conductivity 1130 microsiemens (.6
> ><)> ppt) at 37F
> ><)> > added 200 lbs of NaCl
> ><)> > Day 2 conductivity 2080 microsiemens (1.1
> ><)> ppt) at 36F
> ><)> > added 200 lbs of NaCl
> ><)> > Day 3 conductivity 3075 microsiemens (1.2
> ><)> ppt) at 36F
> ><)> > added 200 lbs of NaCl
> ><)> > Day 4 conductivity 4160 microsiemens (2.2
> ><)> ppt) at 36F
> ><)> >
> ><)> >
> ><)> > Here are some other values that I tested:
> ><)> >
> ><)> > 1 lb of NaCl in 1 gallon of tap water (257
> microsiemens)
> ><)> > raised conductivity
> ><)> > to 140 millisiemens
> ><)> >
> ><)> > 10 grams of NaCl in 1000 ml of Distilled water raised
> ><)> > conductivity to 17
> ><)> > millisiemens (9.9 ppt)
> ><)> >
> ><)> > 1 gram of NaCl in 1000ml of Distilled water raised
> ><)> > conductivity to 2174
> ><)> > microsiemens (1.1 ppt)
> ><)> >
> ><)> >
> ><)> > As you can see from these known values that it
> ><)> certainly was
> ><)> > not lab quality
> ><)> > measurements. But, for our purposes, a close
> ><)> figure would be
> ><)> > very helpful to
> ><)> > us. Thanks for the help.
> ><)> >
> ><)> >
> ><)> > Oh, and also, you don't get a grade unless you
> ><)> show your work ;)
> ><)> >
> ><)> >
> ><)> >
> ><)> >
> ><)> >
> ><)> >
> ><)> > Nick Zarlinga
> ><)> > Aquarium Biologist
> ><)> > Cleveland Metroparks Zoo
> ><)> > 216.661.6500 ext 4485
> ><)> > ----------------
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