I have weak acid stream which contains 0.37 wt% H2SO3 (sulfurous acid) and 0.12 wt% H2SO4, and pH of 1 – 2. I am planning to install a neutralizing system with caustic to increase the pH up to 6 – 7. The chemist at this facility told me to oxidize sulfurous acid and convert it to H2SO4 then...