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  • Users: dg47
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  1. dg47

    Pump Reliability Question

    We are considering a pump purchase for a condition that is 1400 gpm at 550 ft TDH. The liquid is water used for cooling nozzles that spray into hot gas going to an electrostatic precipitator for gas cleaning. The operation is critical and runs 24/7. Two pumps will be installed one being an...
  2. dg47

    Pumping in Series

    What are the concerns with two pumps in series if they are not identical pump sizes? Looking into the feasibility of removing a sump from the system and just pumping from one pump to the suction of the next. The pumps are also about 2000 feet apart. Thanks
  3. dg47

    ammonium removal from conc. waste water

    The ammonium is too concentrated for anoxic biological treatment. It is toxic to autotrophic bacteria needed to denitrify. I like the idea of feeding as a nutrient in an existing biological plant. Look for an industrial plant b/c municipal plants typically have excess nitrogen for nutrient...
  4. dg47

    Hot Lime Softener Blowdown

    I have a question on the blowdown from 3 hot lime softeners at a facility. I'm a wastewater consultant. For environmental reasons, we intend to capture and dewater the lime solids from the softeners. The blowdown is at 22 psi and 230F. About a 10% lime slurry. There is a continuous blowdown...

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