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  1. rodesign

    Acid injection system for RO pretreatment

    If this is for a municipal water treatment plant, then the Recommended Standards for Water Works (10 States Standards) will support your reasoning for a day tank. It states that ‘Day tanks should hold no more than a 30 hours supply’, and ‘bulk chemicals require at least 30 days of supply or a...
  2. rodesign

    Caustic and Chlorine DEMANDS for wet scrubbers

    I am reviewing a design for a 2-stage wet scrubber system that is treating the exhaust of a product water degasifier. The first stage will re-circulate a caustic solution. The second stage will re-circulate a solution of caustic and NaOCl. How are the caustic and chlorine demands for this...
  3. rodesign

    Sodium Hypochlorite Injection

    Why not dose the NaOCl on the suction side of the booster pumps, and avoid this high pressure issue? ProMinent makes pumps that are driven by electric motors rather than trying to use solenoid drives. Several of these pumps are capable of this operating pressure.
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