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Recent content by stamopoulos

  1. stamopoulos

    RO brackish water

    Dear group, Would anyone be familiar of what would be an approximate cost range of a RO plant for brackish water? I am trying to find out the initial cost, and the running cost. Just for the plant, ignore civil engineering (building, reservoirs), well pupms, output pumps. Water has TDS 3500ppm...
  2. stamopoulos

    Ba,Cu removal & salinity for RO

    thanks for your post all george
  3. stamopoulos

    transform data from many rows to one column

    thanks indeed ivymike george
  4. stamopoulos

    earthquake

    i do appreciate Drej for explaining thanks george
  5. stamopoulos

    transform data from many rows to one column

    thanks johnwm , i tried to do that but looks impossible for me, not vb environment oriented at all
  6. stamopoulos

    earthquake

    dear group, i have an excel file containing a 5000 set of values of acceleration vs time. i want to do a transient analysis applying that load to my model. can i copy paste the values at once instead of manually inputing them? also it asks for acceleration vs period, period meaning what? i want...
  7. stamopoulos

    transform data from many rows to one column

    Thank you everybody Ivymike, i almost jump crazy from relief during copying down your formula but unfortunately it transposed data only from the first row. after that i got the message REF! Here is again the problem LINE 1 X1 X2 X3 X4 X5 LINE 2 X6 X7 X8 X9 X10 . . . LINE 1K...
  8. stamopoulos

    transform data from many rows to one column

    thanks francisl i am afraid that the rows are many hundrends i cannot do that manually, i need some other way
  9. stamopoulos

    transform data from many rows to one column

    dear group my data is as following in ms excell: x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 . . . . and i want to transform it as following: x1 x2 x3 x4 x5 x6 x7 x8 . . . i would be gratefull if you could give help me
  10. stamopoulos

    Ba,Cu removal & salinity for RO

    Thank you cub3bead, do you mean that TDS is aprox 5,98X0,7=4,186ppm or 4186ppm? lab found a TDS (i think with gravimetric method)= 3,5ppm which i think is wrong for a brackish water, it should be a 1000 times greater say 3500ppm, thats why i try to find it on my own with an approximate...
  11. stamopoulos

    Ba,Cu removal & salinity for RO

    dear group, we are thinking as a water distributor of constructing a brackish water ro plant and we found in the feed water that Ba=2ppm and Cu=2.22 ppm. Shall we need any kind of pre or post treatment? Also is it true that i can found an approximate value of the salinity of the feed water using...
  12. stamopoulos

    Chromium removal

    dear group, we are thinking as a municipal company of constructing a brackish water ro plant with >10000m3/day permeate, but we found in the feed water that Ba=2ppm and Cu=2.22 ppm. Shall we need any kind of pre or post treatment? Also is it true that i can found an approximate value of the...
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