No concrete answer may be ...
Published by Tim Acevedo, Co-Owner at TG Water Additives, LLC
No concrete answer may be provided without the complete description of the scenario. However, take a look at advanced oxidation, using ozone and UV. the hydroxyl ion formed reacts very quickly to oxidize metals present, which precipitate out of phase a lot easier and can be removed through filtration.
For this you would have to do lab/pilot work with the subject water to determine how much you need. Note that other compounds will also be oxidized.