Hi to everybody.

I want to know if you can help me with the basics of calculations needed to know how much sulphuric acid (H2SO4 @ 78%) or NaOH (@ 32%) i need to add to a stream of wastewater of 100 m3/h with variable pH values. for example if the stream has a pH of 13 how much acid do i need to add to obtain a pH of 6??

i need the basics calculations procedures.... any help will be very appreciated.

And please excuse my bad english typing XD

you need to calculate the concentration of H+ ions (as per definition of pH value)