Flood of sludge breaks TVA dike: Collapse poses risk of toxic ash
source: http://www.tennessean.com/article/20081223/GREEN02/812230370/1001/RSS6001
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http://www.tennessean.com/article/20081223/GREEN02/812230370/1001/RSS...
HARRIMAN, Tenn. — Millions of yards of ashy sludge broke through a dike at TVA's Kingston coal-fired plant Monday, covering hundreds of acres, knocking one home off its foundation and putting environmentalists on edge about toxic chemicals that may be seeping into the ground and flowing downriver.One neighboring family said the disaster was no surprise because they have watched the 1960s-era ash pond's mini-blowouts off and on for years.
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About 2.6 million cubic yards of slurry — enough to fill 798 Olympic-size swimming pools — rolled out of the pond Monday, according to the U.S. Environmental Protection Agency. Cleanup will take at least several weeks, or, in a worst-case scenario, years.
The ash slide, which began just before 1 a.m., covered as many as 400 acres as deep as 6 feet. The wave of ash and mud toppled power lines, covered Swan Pond Road and ruptured a gas line. It damaged 12 homes, and one person had to be rescued, though no one was seriously hurt.
Much remains to be determined, including why this happened, said Tom Kilgore, president and CEO of the Tennessee Valley Authority.
"I fully suspect that the amount of rain we've had in the last eight to 10 days, plus the freezing weather … might have had something to do with this," he said in a news conference Monday on the site.
The area received almost 5 inches of rain this month, compared with the usual 2.8 inches. Freeze and thaw cycles may have undermined the sides of the pond. The last formal report on the condition of the 40-acre pond — an unlined, earthen structure — was issued in January and was unavailable Monday, officials said.
Neighbors Don and Jil Smith, who have lived near the pond for eight years, said that nearly every year TVA has cleaned up what they termed "baby blowouts."
Ashen liquid similar to that seen on a much larger scale in Monday's disaster came from the dike, they said.
"It would start gushing this gray ooze," said Don Smith, whose home escaped harm. "They'd work on it for weeks and weeks.
"They can say this is a one-time thing, but I don't think people are going to believe them."
The U.S. Coast Guard, EPA, Tennessee Emergency Management Agency and Tennessee Department of Environment and Conservation were among agencies that responded to the emergency.
Toxic irritants possible
Coal is burned to produce electricity at the Kingston Fossil Plant, notable for its tall towers seen along Interstate 40 near the Harriman exit in Roane County.
Water is added to the ash, which is the consistency of face powder, for pumping it to the pond. The ash is settled out in that pond before the sludge is moved to other, drier ponds, Kilgore said.
Coal ash can carry toxic substances that include mercury, arsenic and lead, according to a federal study. The amount of poisons in TVA's ashy wastes that could irritate skin, trigger allergies and even cause cancer or neurological problems could not be determined Monday, officials said.
Viewed from above, the scene looked like the aftermath of a tsunami, with swirls of dirtied water stretching for hundreds of acres on the land, and muddied water in the Emory River.
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- tags:
- US, America, TVA, Mountain top removal, 3 more
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Wetdog
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It would not be difficult or expensive to end using coal to generate electricity. The only thing that coal does is produce heat. We can produce heat with natural gas. Nothing else needs to change. All that needs to be done is to replace coal grates in furnaces with natural gas burners. Nothing else needs to change. Boilers, steam turbines, generators, buildings---everything else remains the same. So, ending coal use would not be difficult or expensive.
http://groups.msn.com/BreakingTheChains/general.msnw?action=get_message&mvie...
- 4 years ago
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Wetdog
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sesml2001
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This is a very old plant built in 1955 and which constant updates are done. Seems like they need more than an overhaul. Maybe the infrastructure funds that Obama posed can be applied to these since they were part of the plan devised after the great depression to get people back to work but with a new technology.
I thought I just seen new Obama ads tauting clean coal and something about the technology to send men to the moon could be applied to coal to make it clean. Maybe his experts have answers we don't know about. Lets hope because if not, the region will go back to exporting to countries that don't care about clean coal just the low cost and we will loose jobs to the industries that can produce products at lower cost and we will still have the pollution even if its not coming from the US.
Here in Florida the local electric company just socked us with huge increase because they are closing 2 coal plants and switching to nuclear plants. Yeah we get to pay for it for 7 years while its being built and they don't have a clear answer to what they will do with the nuclear waste generated from it.
- 4 years ago
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sesml2001
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pakazak
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part of the answer?
hemp and all its by-products. - 4 years ago
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pakazak
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JackHerer
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pakazak:
In 1998, Phytotech, along with Consolidated Growers and Processors (CGP) and the Ukraine's Institute of Bast Crops, planted industrial hemp, Cannabis sp., for the purpose of removing contaminants near the Chernobyl site. Cannabis is in the Cannabidaceae family and is valuable for its fiber, which is used in ropes and other products. This industrial variety of hemp, incidentally, has only trace amounts of THC, the chemical that produces the "high" in a plant of the same genus commonly known as marijuana.
Overall, phytoremediation has great potential for cleaning up toxic metals, pesticides, solvents, gasoline, and explosives. The U.S. Environmental Protection Agency (EPA) estimates that more than 30,000 sites in the United States alone require hazardous waste treatment. Restoring these areas and their soil, as well as disposing of the wastes, are costly projects, but the costs are expected to be reduced drastically if plants provide the phytoremediation results everyone is hoping for.
- 4 years ago
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JackHerer
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pakazak
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pakazak:
thank you JackHerer.
i knew somebody out there would have that info. - 4 years ago
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pakazak
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jahbini
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If I were Obama, I'd give big Coal and big Oil preferential tax treatment for every dollar they PROFITABLY earn in energy outside of coal or petroleum. And tax the hell out off their profits from coal or oil.
These companies have $$$, give them a better opportunity to spend it on a clean future rather than dirty one.
These huge corporations CAN shift, but only with a big carrot in front of their noses, because they can't see very well.
- 4 years ago
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jahbini
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Greenpointer
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Sludge vid.
- 4 years ago
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Greenpointer
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7c0m9
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i'm republican. i voted for obama. whats up with that? either peolpe freeze to death or they burn coal. hmm which one would you choose? but i do agree we need something besides coal power production. before oil was so popular there was coal. the industry is as big if not bigger than the oil industry in this country. these people are living in their filth. coal companies dont care we do. were the only ones.
- 4 years ago
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7c0m9
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bluestranger
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Hit them where it hurts. The TVA and the coal company are accountable. Sue the real eco-terrorist out of existence. This is not the first slurry dam failure.
- 4 years ago
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bluestranger
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edbr
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exactly correct, ecocentric.
there is no such thing as 'clean coal,' and we must implore our leaders to embrace other, truly sustainable and non-polluting green energy alternatives.
- 4 years ago
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edbr
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Ecocentric
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This reminds me of that crazy claim that McCain and others actually believe in about "clean coal" technology. How much longer will world leaders allow the destruction of our planet?
More CO2 is created from burning coal than ALL the cars and trucks in America.
- 4 years ago
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Ecocentric
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crob80227
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"The amount of poisons in TVA's ashy wastes that could irritate skin, trigger allergies and even cause cancer or neurological problems could not be determined Monday, officials said."
There are indirect ways to track if the toxic stew has caused neurological damage.
a) unusually low math & reading scores
b) increase incidents of autism or ADHD
c) significant spike in registered Republican voters
These are all key indicators that the toxic slurry is having an prenatal impact in pregnant mothers living in the area.
- 4 years ago
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crob80227
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edbr
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crob80227:
'c' would be the primary indicator of all the pollution (and not just environmental pollution) abound in the SE US for decades.
:-P
- 4 years ago
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edbr
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