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Interesting possible solution to the issue of toilet retention tanks

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  • 11-06-2013 3:31pm
    #1
    dowlingm
    Registered Users Posts: 5,309 ✭✭✭


    http://www.railwaygazette.com/news/passenger/single-view/view/lower-train-toilet-costs.html
    AKW A+V Protec's train toilet bioreactor units use bacteria to break down waste (RG 5.10 p68). Heaters sterilise waste water which can then be harmlessly discharged to the track, leaving small volumes of solid waste in the tank for disposal approximately every two months.
    Presumably the heaters would require additional power although this might be dealt with in the course of a normal refit by installation of energy saving technologies such as LED lighting etc.


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    #2
    foggy_lad
    Closed Accounts Posts: 20,373 ✭✭✭✭foggy_lad


    Sounds good but wouldn't those heaters affect fuel consumption just like air conditioning units in cars affect the Mpg rates?


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    #3
    dowlingm
    Registered Users Posts: 5,309 ✭✭✭dowlingm


    presumably, but the argument one imagines is that you save on maintenance hours involved in servicing conventional retention tanks in addition to capital cost in more extensive modifications to fit tanks where not currently present.


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    #4
    Cookie_Monster
    Registered Users Posts: 24,469 ✭✭✭✭Cookie_Monster


    well with unit trains you can just cyphon heat from the underslung engine 'for free'


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    #5
    dowlingm
    Registered Users Posts: 5,309 ✭✭✭dowlingm


    Cookie_Monster wrote: »
    well with unit trains you can just cyphon heat from the underslung engine 'for free'
    good point!


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    #6
    Markcheese
    Registered Users Posts: 8,428 ✭✭✭Markcheese


    Why would it be cheaper to stick bioreactors on individual trains than to have one large reprocessing plant at the trains base ??

    Slava ukraini 🇺🇦



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    #7
    Cookie_Monster
    Registered Users Posts: 24,469 ✭✭✭✭Cookie_Monster


    Markcheese wrote: »
    Why would it be cheaper to stick bioreactors on individual trains than to have one large reprocessing plant at the trains base ??

    possibly with networks as big as the US or Canada and the lenght of time trains are rostered to be out it makes it easier?


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