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  1. drogones12

    Hi All, I am adding a KMnO4 chemic

    I plan to add KMnO4 solution at my water treatment plant for Mn and Fe removal. Will this oxidation reaction make the water more acidic? I do use Sodium Bicarb for pH and alkalinity control. Please see the half-reaction in the attachment. It seems the oxidation process will consume OH- and...
  2. drogones12

    I have a Goulds booster pump with p

    I have a Goulds booster pump with part number 2AB25HM05 that can not build up pressure and keep tripping out due to the low pressure. Any idea what could cause the pump to not able to build up pressure? This is a new installation and the pump was working at one point. The vendor rep told me the...
  3. drogones12

    Hi All, I am adding a KMnO4 chemic

    Hi All, I am adding a KMnO4 chemical feed to my filtration compact package unit for the iron and manganese removal. I have a 50 gallon mixing day-tank and will be using powder KMnO4 for the solute to get 2% strength solution. The CAIROX potassium permanganate powder is 97% guaranteed with 2.703...
  4. drogones12

    water flow in a vertical pipe and horizontal pipe

    Hi, I have a membrane filtration unit and I need to sample the turbidity on the CFE pipe. I can not sample the water on the CFE pipe because there is not enough water pressure. what can I do to collect the water on the CFE? Is the gravity feed water flow in the vertical pipe a full flow pipe or...
  5. drogones12

    detention time

    How to calculate the time that will take a drop of raw water becoming a finished water in a conventional water treatment plant? Is there a formula for it? All input will be appreciated.
  6. drogones12

    240v schematic diagram

    hi, For a complete circuit, how does 2 hot legs supply a load with 240v without a neutral wire on the schematic diagram? Do electrons come in from one hot leg then go out the other hot leg? how does it apply in the resident home setting? all input will be greatly appreciated.
  7. drogones12

    PO4 level has increased

    Hi bimr, We have 15 sample locations through out our distribution system. The PO4 concentration at the entry point is 1.0 average, but the rest of the samples throughout the system have much higher concentration. Do you think we should flush the hydrants more often? Thank you
  8. drogones12

    PO4 level has increased

    Our water treatment plant uses about 200Ibs of ZOP. recently, the po4 concentration in the distribution pipe has increased about 50% without changing of dosage. Is there any approaches we can take to narrow down the real cause of this? Thank you in advance.
  9. drogones12

    Activated carbon treatment

    Hi bimr, Thank you for your input. I didn't understand the second part of your answer. I want to see the quantity of carbon I need to neutralize water with 1.7ppm chlorine level and flow rate 14400 gallon/day. I have been treating the water with the Na2SO3. I would like to see the price...
  10. drogones12

    Activated carbon treatment

    My water treatment plant has a leaking reservoir tank issue. It is leaking about 10 gallon/min of treated water with 1.70ppm chlorine concentration into the creek. I am buying GAC to treat the leaking water. How do I calculate the quantity of carbon I need or the contact time for carbon?
  11. drogones12

    Al2(SO4)314(H2O)

    Hi, What would cause Al2(SO4)314(H2O) crystalized in the alum tank and pipes? All input will be appreciated.
  12. drogones12

    Denitrification and alkalinity

    Would adding extra alkalinity slow down denitrification process in wastewater?
  13. drogones12

    wastewater treatment software

    Hi, Are SWMM 5 and GEM8 Water CAD adequate for simulating wastewater plant hydraulic expansion from 4.5 MGD to 18 MGD? what about wastewater treatment process quality simulation? all input will be appreciated
  14. drogones12

    Hi, Are SWMM 5 and GEM8 Water CAD

    Hi, Are SWMM 5 and GEM8 Water CAD adequate for simulating wastewater plant hydraulic expansion from 4.5 MGD to 18 MGD? what about wastewater treatment process quality simulation? all input will be appreciated
  15. drogones12

    permit for water treatment plant in VA

    Hi, Which permits are required for water treatment in VA? any input will be appreciate.
  16. drogones12

    Cost of installing a 8'' steel sewer pipe

    what is the cost of install a 86' long, 8" steel pipe? The cost should include trench diging fee(3 feet deep), labor fee, equipment rental fee, cost of purchasing pipe. Jason Li
  17. drogones12

    overflow pipes design for wastewater

    Hi Dicksewerrat, Pump will not be necessary for this project. I wasn't sure if I had enough elevation head to satisfy 2ft/s of flow speed. Thank you
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