Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: RuwanR
  • Content: Threads
  • Order by date
  1. RuwanR

    Is there any relationship between SV 30 and MLSS values ?

    We are having a MBR treatment plant dedicated for a dairy industry.We are getting a 1500 ml SV 30 value and 6000 mg/l MLSS in aeration tanks. Our daily BOD load is 800 kg.I cant figure out any relationship between these two.
  2. RuwanR

    MBR Treated effluent

    What is the reason for yellowish colour of MBR treated water and white foaming ?
  3. RuwanR

    Why the COD is within norms and BOD out of norms ?

    The norm for COD is 250 mg/l and the actual value is 45 mg/l.The norm for BOD is 30 mg/l ,actual is 40 mg/l per day and 90 mg/l for 5 days. What is the reason for this relative to a waste water treatment plant ?
  4. RuwanR

    The amount of caustic and HCl to increase and decrease the pH of water by 2 ?

    I need to figure out what is the amount of caustic we need to increase the pH of 1L water from 7 to 9 and the amount of HCL to bring down the pH of 1 L water from 7 to 5. Here we find caustic granules of 99 % concentration and 32 % HCL . Can you please work that out for me? I’d be grateful if...
  5. RuwanR

    Can we guess a pressure of a centrifugal pump by it's head ?

    I have one centrifugal pump in which the head is mentioned as 29 m .So the theoretical pressure according to the pressure should be 2.9 bar .But the actual pressure is 4 bar ? Can you please make me understand what is the difference....

Part and Inventory Search