PDA

View Full Version : Formula for RO output?



heus
03-18-2017, 10:00 AM
Is there a formula to determine the amount of concentrate left over after ro'ing to a certain percentage?
For example, lets say I have 1000 gallons of 1% sap and I recirculate to 10%. How much sap would I have left from the original 1000 gallons?

bowhunter
03-18-2017, 10:51 AM
Divide the sap sugar content by the concentrate sugar content and multiply that fraction times the original sap volume. This is not absolutely correct, but is close enough. So 1% divided by 10% equals 0.10. 0.10 times 1000 gallons of sap equals 100 gallons of concentrate.

regor0
03-18-2017, 11:29 AM
I think MES has an app that will calculate that.

jmayerl
03-18-2017, 11:48 AM
MES's app will give you a % of rejection not actual amount.

heus
03-18-2017, 01:07 PM
Thanks guys. Does % of rejection mean % of concentrate?

jmayerl
03-18-2017, 02:04 PM
Rejection = permeate.