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  1. rizky123

    [bold]degasifier unit??[/bold]

    do any one know how to get henry's law constant if my system is 0.2 bar with 43[sup]o[/script]C. u see i'm trying to calculate the efficiency of my degasifier unit, because the output of CO2 is only 21ppm and it should be less than 10 ppm. my water flow is 66m3/hr and air rate is 44000Nm3/hr...
  2. rizky123

    [bold]Help!!![/bold]demin water unit

    this unit has been working for 24 years. about the acid concentration yes it is 4%. now i'm doing a jar test to simulate the demin unit. and my guess is the mixed bed is not right. i think i should review the regeneration SOP for the mixed bed. oh yeah we've tried to inject TSP to this demin...
  3. rizky123

    [bold]Help!!![/bold]demin water unit

    i'm using H2SO4 for regeneration and the regeneration time is 15 min longer than it supposed to be. any thoughts?
  4. rizky123

    BFW Water treatment pH control

    but i think the water still contain dissolved CO2 eventhough it already degassified. and i wonder how to increase degassification of CO2without deteriorating the ion resin's power to exchange ion (because it can only work to 45oC)
  5. rizky123

    [bold]Help!!![/bold]demin water unit

    oh yeah one thing i forgot to tell u. we've tried to add amine to the BFW stream before it enters the boiler and the pH is rising up to 10. but after that the steam and condensate pH drop again to 5 so its a weird thing.... oh yeah and the raw water we use are rain water that we collect from a...
  6. rizky123

    [bold]Help!!![/bold]demin water unit

    yes i've been following the manufacture's instruction. for information the conductivity from mixed bed is 0.9, from anion bed is 6.8 and cation conduc. is 172. the resins that i use are amberlite IRA 420 and IR 120. the pH been trending off since the plant was built and start and i don't know...
  7. rizky123

    [bold]Help!!![/bold]demin water unit

    Do anybody know why does my demin water unit cannot reach pH 7? cause it only reach 5. please i need a sugestion on how to increase pH in demin unit with an ion exchanger bed
  8. rizky123

    BFW Water treatment pH control

    i'm having difficult control with my water treatment unit. u see the make up water pH for the BFW is control by an ion exchanged bed and the pH is off scale (it supposed to be 7-9 not 5.6). so any suggestion?

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