Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross 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: *

  1. arabojan

    Average BOD

    Is below method correct way to calculate average BOD ? The facility is presumed to produce residential equivalent strength sewage during daily activities and wastewater with high organic strength and elevated FOG (fat, oil and grease) characteristics during events. This high strength situation...
  2. arabojan

    pressure drainfield system

    thanks Sparttan5, it was very helpful
  3. arabojan

    pressure drainfield system

    I am designing a pressure drainfield system, and my system performance curve is as follows: gpm head 40 32.27 45 37.03 50 42.28 I have a hard time to select a pump to fit in my system; I tried Myers and Haydromatic Companies products. I need a non-clog pump, the grinder pump from the...
  4. arabojan

    Commercial site grading plan

    Currently I am doing a commercial site grading and I need a go by plan to clarify some question that I have, do you guys know any site or go by plan on internet that I can download?
  5. arabojan

    Total discharge time

    thnaks so much
  6. arabojan

    Total discharge time

    I was wondering how can calculate total discharge time for a detention pond to completely be empty for example after 10 years storm, I am using PondPack for my calculation.
  7. arabojan

    Low flow rate

    The predevelopment area that produce such a small flow rate is small and I want to discharge my post development basin flow that is from the new building roof's area to the detention pond and then release to the discharge point of pre-development rate, I modeled the basins by pond pack and base...
  8. arabojan

    Low flow rate

    I am designing a detention storage pond (pipe storage), the pre-development flow rates are as followa: years pre-dev flow rate post-dev flow rate 2 0.0000 0.6733 10 0.001 0.9889 25 0.0245 1.2203 100...
  9. arabojan

    Autodesk Grading Objects

    CHECK YOUR 3D POLYLINE WHICH YOU ARE YOU ARE USING FOR GRADINGS, IT MIGHT BE A GRIP WITH ELEVATION ZERO THAT CAUSE THAT PROBLEM, CHECK ALL THE ELEVSATION OF YOUR 3D POLYLINE WITH EDIT 3D POLYLINE COMMAND IN 3D POLYLINE MENU
  10. arabojan

    roof runoff /drywell

    Hi guys I want to control a commercial roof runoff with an area approxiamte 76815 sf by drywells, the requred storage volume is 7565cf and drywell discharge rate is 0.3cf/s, how i can provide the requred storage without building a swale over drywells with considering the facts that runoff...
  11. arabojan

    SWMM MULTIOUTLET STRUCTURE

    I WAS WONDERING HOW CAN CONNECT A WEIR AND AN ORIFFICE TO AN OUTLET IN SWMM.
  12. arabojan

    SWMM5 EXAMPLE

    Thanks for the links, do you know where i can find examples for pond routing using SWMM?
  13. arabojan

    Ponding next to drainage basin

    the project is located in native americans property so they are not under any jursdiction, there is a wetland next to property that is under jurisdiction of army corps but the wetland inside property is not protected by any agency, the design that I am doing is not going to be reviewd by any...
  14. arabojan

    Ponding next to drainage basin

    yes there water table is 5.5 feet below the existing ground, and in august it raise 2 feet more, actually I don’t believe that we can discharge the water by infilration,but I have not a good reason, because may be we can explain that the infiltration water is flowing with ground water routes...
  15. arabojan

    Ponding next to drainage basin

    I decided to include the infiltration to my evaporation pond calculation, which is 0.5 in/day to reduce my pond size that without is 700000 square feet,after applying this reduction, my pond size is 400000sf with a depth about 1.5ft ( with 1 ft free board, total depth 2.5) My question is can I...
  16. arabojan

    SWMM5 EXAMPLE

    hi everybody does anyone know where can i find example applications and samples for getting more familier about this software and procedures? i have already downloaded its manual but i need more practical samples
  17. arabojan

    Ponding next to drainage basin

    I am sure that the wetland in the project area is not under any jurisdiction, By studying more I found out that there is a creek nearby, is it possible to discharge the water by a channal to the creek?
  18. arabojan

    Ponding next to drainage basin

    The area where water is ponding is wetland and natural low area, but it isn't under any jurisdiction or agency protection and our proposed road is going to pass over it, we are following Spokane County, Washington regulations, Subsurface condition Our exploration generally ecointered 2...
  19. arabojan

    Ponding next to drainage basin

    Hi everybody Currently I am designing a drainage system for a commercial site, which is located an rural area without any adjacent buildings, we have no restriction for extending our site, so if we need we can use surroundings lands, but problem is that all the proposed and predeveloped area's...

Part and Inventory Search

Back
Top