I  agree that  something  ...

I  agree that  something  does  not  add up here.  I have  worked  with  a  large  industrial laundry in  a  small town and switching  to peroxide( from chlorine)  only had a positive effect. No  problems (including change in  BOD) were  noted.  I suggest investigating to see what real problem is…. until then I suggest having prison equalize their flow to plant, if this is not already practiced.