ln2*system volume/ blowdown ...
Published by Shesharam Chouhan
ln2*system volume/ blowdown
it it indicates the time take to drop the conc of a species to half of its initial concentration. It helps to determine suitablity of dispersing polymer/ scale inhibitor to act before its degrade. In case of biocide which can flashes away, it helps to determine residence/ retention time which is further compared with reaction time to calculate required dosage.