Calculating TIme to Reach Desired Chemical Concentration
Calculating TIme to Reach Desired Chemical Concentration
(OP)
This should be an easy one, but how do you calculate the time it takes to raise a tank of liquid up to a certain chemical concentration given the following known parameters:
Input Tank Volume in Gallons
Output Flow Rate in Gal/hr
Concentration of Output in parts-per-million
Desired Increase in Input Tank Concentration in parts-per-million
Example: We have a 50,000 gallon tank with a chemical concentration of 3ppm, but we want to raise the concentration to 17 ppm. We have a pump with a flow rate of 9.25 gal/hr able to inject the chemical at a concentration of 35 parts-per-million. How long would it take to raise the input tank of 50,000 gallons of liquid from 3 parts per million to 17 parts per million using our pump with a flow rate of 9.25 gal/hr outputting a concentration of 35 ppm?
There's something I'm missing so I'd like to see the math if anyone would be so kind as to show it. Before anyone asks, this is job related not school related. I'm working on an excel calculator for work but I'm having difficulty wrapping my head around this one! Thanks in advance!
Input Tank Volume in Gallons
Output Flow Rate in Gal/hr
Concentration of Output in parts-per-million
Desired Increase in Input Tank Concentration in parts-per-million
Example: We have a 50,000 gallon tank with a chemical concentration of 3ppm, but we want to raise the concentration to 17 ppm. We have a pump with a flow rate of 9.25 gal/hr able to inject the chemical at a concentration of 35 parts-per-million. How long would it take to raise the input tank of 50,000 gallons of liquid from 3 parts per million to 17 parts per million using our pump with a flow rate of 9.25 gal/hr outputting a concentration of 35 ppm?
There's something I'm missing so I'd like to see the math if anyone would be so kind as to show it. Before anyone asks, this is job related not school related. I'm working on an excel calculator for work but I'm having difficulty wrapping my head around this one! Thanks in advance!





RE: Calculating TIme to Reach Desired Chemical Concentration
RE: Calculating TIme to Reach Desired Chemical Concentration
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Calculating TIme to Reach Desired Chemical Concentration
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Calculating TIme to Reach Desired Chemical Concentration
RE: Calculating TIme to Reach Desired Chemical Concentration
RE: Calculating TIme to Reach Desired Chemical Concentration
RE: Calculating TIme to Reach Desired Chemical Concentration
RE: Calculating TIme to Reach Desired Chemical Concentration
Thank you all for taking the time to respond. I apologize for not acknowledging your efforts sooner. It has been busy here and I was out of state on field service for over a week. We actually derived an equation by solving algebraically. Your calculations are very interesting though. It makes me wonder if ours is incorrect. We will review.
Thanks again for your time!