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Recent content by SanEnr1

  1. SanEnr1

    Plugging Sanitary Sewer Laterals (Trenchless?)

    It sounds as if, from your description of houses being demolished to widen a road, the road itself will be a major thoroughfare. If this is the case, I would definitely want to televise the sewer mainline to determine its condition before the project gets too far along. By completing the...
  2. SanEnr1

    WWTP background

    If you are working at the WWTP, one of the plant staff should have a copy of Operation of Wastewater Treatment Plants, Volumes I and II. These are great books if you're just starting out in the wastewater field and are the basis for many wastewater treatment plant operator certification...
  3. SanEnr1

    Plugging Sanitary Sewer Laterals (Trenchless?)

    What is the purpose of plugging the laterals? Are you permanently abandoning or temporarily plugging? Are you trying to plug them at the main or at the property line? I think your method would be dictated by your goals for the project.
  4. SanEnr1

    Fluid Migration in Utility Trenches

    4tuna, Your story sounds very interesting. Could you contact me directly at v o e r g c (at) c o l o n i e (dot) o r g with more details? (Please note that there are no spaces in my contact info, this is only used to throw off spammers.) SanEnr1
  5. SanEnr1

    Fluid Migration in Utility Trenches

    I am doing research for a paper regarding fluids (either liquids or gasses) that follow utility trenches after construction is complete. I have seen groundwater follow porous stone bedding materials downgradient and volatiles follow the same type material upgradient where the fluid is then...
  6. SanEnr1

    Fluid Migration in Utility Trenches

    I am doing research for a paper regarding fluids (either liquids or gasses) that follow utility trenches after construction is complete. I have seen groundwater follow porous stone bedding materials downgradient and volatiles follow the same type material upgradient where the fluid is then...
  7. SanEnr1

    Fluid Migration in Utility Trenches

    I am doing research for a paper regarding fluids (either liquids or gasses) that follow utility trenches after construction is complete. I have seen groundwater follow porous stone bedding materials downgradient and volatiles follow the same type material upgradient where the fluid is then...
  8. SanEnr1

    Fluid Migration in Utility Trenches

    I am doing research for a paper regarding fluids (either liquids or gasses) that follow utility trenches after construction is complete. I have seen groundwater follow porous stone bedding materials downgradient and volatiles follow the same type material upgradient where the fluid is then...
  9. SanEnr1

    WWTP Sludge Disposal Contract

    Understood. I have this information available, but did not post specifics as I am just looking for sample contracts. I will build my own specification based upon the characteristics of my sludge, but am looking for some samples. [smile]
  10. SanEnr1

    WWTP Sludge Disposal Contract

    I need to prepare bid specifications for the contract transport and disposal of municipal sewage sludge. I intend to structure the bid such that the sludge can be disposed of as liquid or cake. I am looking for specifications/contracts that other municipalities have used as a basis for...
  11. SanEnr1

    Clay Pipe Failure

    I agree with dicksewerrat in that longitudinal cracking is typical of load issues. The majority of non-root cracking that I have seen in clay pipe is the result of the original installation practices. In many cases, particulary 50+ years ago, pipe bedding practices were non-existent. If your...
  12. SanEnr1

    How do I stop HS corrosion in Lift Station without expensive chemicals

    Are you experiencing the H2S in the station or in the forcemain? It sounds like you have a submersible station which would then not allow the gas (if created in the forcemain) back into the wet well. I would try to isolate the origin of the H2S. Perhaps the residence time in the wet well is...
  13. SanEnr1

    Sanitary Sewer System Inspection & Analysis

    I think it depends upon the goals of your evaluation. Do you just want closed circuit TV of the lines, smoke testing, dye testing to determine the condition of the lines or are you looking at something more extensive like flow monitoring and hydraulic modeling to determine current and future...
  14. SanEnr1

    Force main - initial low flows

    I agree with SEMO regarding wet well float locations and conercens regarding motor starters. I have experienced this problem before and rely mainly upon regular maintenance of the system by our field crews to keep solids from depositing in the gravity system and excessive odors from developing...
  15. SanEnr1

    Unusual - Need to dissolve/oxidise H2S(g) into H2O(aq)

    I just did a quick Google search and found this interesting site http://www.telusplanet.net/public/jcarroll/ION.HTM Hope it or the references at the end help. I don't think there is much more I can offer. Good luck.

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