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Thread: PetroChina buys entire Alberta oilsands project

  1. #391
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    Re: PetroChina buys entire Alberta oilsands project

    Quote Originally Posted by j-mac View Post
    That's interesting Bill. Years ago when I drove dump trucks for a living, we used to have a contract with BG&E to pick up, and transport to the quarry fly ash from the local electric plant. It was taken to the quarry, and basically buried much like a dump would take care of waste. What are the concerns of that process?

    j-mac
    That is the ash collected by the bag house and other particulate reduction methods that coal powered plants use. They still emit ash into the atmosphere. Older plants tend to emit a lot more then newer ones (older ones tend to have far fewer and less effective particulant reduction operations then new ones) One plant just recently shut down outside of Edmonton Alberta emitted at least five times the particulate matter that a plant 30 years newer did just a few miles down the road

    The particulate matter can contain mercury, lead, other heavy metals and radioactive particles.
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    Re: PetroChina buys entire Alberta oilsands project

    dumping ash in the ground leads to water table pollution, depending on some variables.....when rain water soaks through the ash, it leaches out pollutants...
    It has some uses, but not enough for the amount we generate...
    a large coal plant willl have lots of coal being brought in by truck or train, and a lot of ash going out by truck or train....plus the airborne pollution out the stacks.
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    Re: PetroChina buys entire Alberta oilsands project

    Quote Originally Posted by UtahBill View Post
    dumping ash in the ground leads to water table pollution, depending on some variables.....when rain water soaks through the ash, it leaches out pollutants...
    It has some uses, but not enough for the amount we generate...
    a large coal plant willl have lots of coal being brought in by truck or train, and a lot of ash going out by truck or train....plus the airborne pollution out the stacks.
    Coal ash must be placed in disposal sites built over impermeable liners that prevent any water leaching.

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    Re: PetroChina buys entire Alberta oilsands project

    Quote Originally Posted by Gill View Post
    Coal ash must be placed in disposal sites built over impermeable liners that prevent any water leaching.
    was it last year? one of those sites embankements collapsed, sending coal ash sludge into a town and river.....quite a mess...
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    Re: PetroChina buys entire Alberta oilsands project

    Quote Originally Posted by UtahBill View Post
    was it last year? one of those sites embankements collapsed, sending coal ash sludge into a town and river.....quite a mess...
    That was a 50 year old pond that couldn't take an extraordinary rainfall followed by severe cold temperatures.

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