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  • Users: krolley
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  1. krolley

    open top tank

    Hi all, The designer of my waste water treatment plant is using open top tanks for neutralising the acidic water with lime. From that tank; it goes to a thickner. Is there a specific reason to use open top tanks; other than cost? We have gratings on top of the tank where operators will be doing...
  2. krolley

    booster pump

    Hi all, Maybe this is a stupid question...but help me anyway.. I have a pump with NPSHr approx 5 meter. The NPSHa is only 2 meter. It was a design mistake. Anyways, this pump capacity is 1500 m3/hr at about 10 bar. To rectify this, I was thinking to install a booster pump upstream of this...
  3. krolley

    Recycle line for Fire Water Pump

    Hi all, I have a fire water system that consists of 2 electrical pumps, 1 diesel and 1 jockey. The suction is from a water pond; and individual reliefs is at individual discharge of the pump. I am a bit confused with the use of the recyle line which is back to the open pond. What is the...
  4. krolley

    Gypsum from Flue Gas Desulfurization

    Hi all, A quick one. The gypsum that I get from my Flue Gas Desulfurization process is one at a low pH,2. This gypsum is a synthetic gypsum with main components being CaSO4. Does the low pH indicates free water presence, can the the SO4 leach out and become free acid? Thanks

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