TDS can be many substances, ...
Published by John Salonich, Vice President / Managing Director
TDS can be many substances, Ca P, Na, Fe, Pb, etc. Some of these are O2 scavengers and as a result many have a higher acceptance for O2 electrons (hierarchy). Therefore changes in TDS can affect volume of O2 required for desired reductions and O2 required for a healthy floc. Inhibition levels can be measured by changes in ORP values.