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Microbes for Bioremediation
The San Francisco Chronicle has a piece discussing current efforts to clean up nuclear waste sites with microbes. Current treatment procedures generally involve pumping out the contaminated groundwater, filtering it, and pumping it back, which is rather expensive.
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Two FP's in one day! Sounds like a cool idea.
though i'll reply just the same ... FP ??
this is just another evil attempt on MicroSoft's part to monopolize the industry.
I know this is the slashdot, but the quality has been REALLY bad lately. Maybe some more Microsoft bashing or Linux hyping would be in order?
I think that microbes are a great idea, in theory, but what about when they aren't in use?
So saith the anti-environmentalists.
If Oak Ridge has taught us anything, it's that even the best laid plans can end up destroying the ecology of an area.
I'm all for alternative energy sources, but nuclear is one source that is too hot too handle.
I for one welcome our new microbe overlords!
Buy Steampunk Clothing Online!
Or, alternately, poo.
You are not the customer.
Is this the intro to another movie?
I can see it now: radioactive germs bite a kid and he turns into a super human spiderman/hulk thing.
Great.
is anybody else reminded of Zodiac? This may turn out to be that bad of a fiasco if rushed. I can only hope for the best.
why does the porridge bird lay his eggs in the air?
"Current treatment procedures generally involve pumping out the contaminated groundwater, filtering it, and pumping it back, which is rather expensive."
Wouldn't that solution just make lots more radiation contaminated water and parephenalia?
I can think of cooler stuff to do with microbes - like in restauraunts, have lots of microbes at the bottom of a special trash can to eat away grease (McDonalds would love that.)
Or even a microbe spray to degrease stuff; cool, huh? No more wiping down.
Also cool would be microbes in my toilet, to eat my shit (but not die.)
Of course, I do wonder what they'd do while they weren't eating shit or grease or whatever, but who cares about that, they're cool!
Sig & Below
Yuck Fou
But the real question is, how well does it work? Can this convert a nuclear waste zone into a habitable zone? This is great news for the environmentalists.
YAFIRL (Yet another Free iPods referral link)
it starts with the microbes 'consuming' uranium... ok, what does the microbe do with it? it's still radioactive and now your microbe is also!
then i get to the part where the microbe is taking water based uranium and making a solid form. ok.
don't you still have to dig this stuff up? wouldn't the 'solid' form break down after a while and still have the problem? and wouldn't the solid form still have the same amount of radioactivity?
it looks like it makes it easier to get it out of soil, but you still have to dig it up and process it out?
eric
The waste ate its way down into layers of saprolite, a claylike rock, so that more than 99 percent of it is deep in the soil, he said.
Maybe this technology could be put to other uses. for example, what if we used old nuclear waste for drilling deep within the earth. We could pour some in the hole, and then microbe it when it stopped being effective. lather, rinse, repeat.
1. Pour nuclear waste into ground making a really really deep hole.
2. Clean up hole with microbes.
3. ????
4. Profit!
Under capitalism man exploits man. Under communism it's the other way around.
They have GE Bacteria that will eat oil, to be used in oil spills. These however are not being used outside of labs, because of the consern of "What will happen when the the oil is gone? What are they going to do? Die, or find something else?" So I would think the same with will happen.
Radioactive germs bite a kid and he turns into a super human bacteria thing, who is blue and goes around ingesting radiation and cleaning up superfund toxic waste spill sites
In other words
BY YOUR POWERS COMBINED... I AM CAPTAIN PLANET!!
gooooo planet!
a mountain of radioactive and toxic dirt 2,000 times larger than Egypt's Great Pyramid at Giza.
That's all very well and good, but I want to know how many Libraries of Congress that is.
Nanotechnology will practicaly do the same thing in a much more efficient way. Imagine, the little robots could built a small city with nuclear waste. Take a few carbon atoms lying around and built some houses. Then build a nuclear plant. Use the depleated uranium to make rods. Use thoses rods in the nuclear plant to provide power to the freshly assembled houses. Tada! City in a Box (Tm)
YAFIRL (Yet another Free iPods referral link)
Skinner: Well, I was wrong. The lizards are a godsend.
Lisa: But isn't that a bit short-sighted? What happens when we're overrun by lizards?
Skinner: No problem. We simply release wave after wave of Chinese needle snakes. They'll wipe out the lizards.
Lisa: But aren't the snakes even worse?
Skinner: Yes, but we're prepared for that. We've lined up a fabulous type of gorilla that thrives on snake meat.
Lisa: But then we're stuck with gorillas!
Skinner: No, that's the beautiful part. When wintertime rolls around, the gorillas simply freeze to death.
There's a Mercedes gap too. I want one and can't afford one, but it's not government's job to do anything about it.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I'd love to see these GNAA types slowly consumed by millions of swarming microbes and converted into harmless and useful biochemicals.
Or, alternately, poo.
I wonder how is it that the ionizing radiation doesn't manage to kill off these microbes before they can do their job? A typical gamma ray goes for 5 MeV, whereas a typical ionization energy is only at 15-20 eV. Interfering with chemical reactions necessary to life most definitely. Mutation and more likely outright killing of these organisms.
How do they survive?
Qu'on me donne six lignes écrites de la main du plus honnête homme, j'y trouverai de quoi le faire pendre.
This actually has something in common with the Stephenson novel "Zodiac". Everyone should go read it. You can buy it here
microbes ate you!
Current treatment procedures generally involve pumping out the contaminated groundwater, filtering it, and pumping it back, which is rather expensive.
I want these guys to use whatever works the best. Microbes, filtering, shooting it off into the sun...
Really...this is one of the places where is has to be done right. Screw the expense.
Unfortunately, profits and stockholders will get in the way of doing it right.
OK, enough of the silly "Microbes will take over" and Frankenfood-inspired comments.
Having read the article, it seems like a good way to precipitate soluble U ions as U oxides, or complex uranyl compounds. It appears to offer a way to mitigate impacts upon human health and the environment by precipitating U ions traveling in ground water so they do not discharge to surface water or pumped by potable wells.
Bioremediation is nothing new. It works well with chlorinated solvents (PCE and TCE), especially in reduced, iron-rich ground water. The caveat for those compounds is, however, that they break down only so far, often leaving vinyl chloride -- a demonstrated carcinogen -- as the final step before there is not enough energy for them to survive by reductive dehalogenation. Basically, the microbes die becuase they do not have a source of "food."
The same goes for aerobic microbes, like these appear to be; they combine dissolved metals with oxygen to precipitate them. That gets even more expensive, because you have to maintain the proper redox level by introducing O2 with hydrogen peroxide or ozone. It's expensive and prone to mechanical failure or the vagaries of the subsurface.
These microbes may die out once their source of "food" depletes. However, the by-products should be assessed before they try to use this in a live environment, because sometimes the cure can be worse than the problem. There is also no economic analysis for this research, but it is likely way to early to determine how much it would cost to implement. It may be more reliable and cheaper to precipitate dissolved U by simply pumping a lot of oxygen into the ground water.
The story sounds like its using a method that the copper industry has been using for years, expect in this case with microbes that crave uranium instead if copper. They don't eat or destroy the uranium, just chemically transform it into insoluble forms that can be easily filtered out of groundwater.
Biological heap leaching is an inexpensive way to extract the metal from low-grade ores where copper is bound in a sulfide matrix. As the microbes chew up the ore, which has been treated with sulfuric acid to encourage them, the copper is released and concentrated in a solution that flows into a catch basin. The metal is extracted, and the acid solution is recycled.
The bacteria doesn't get rid of the radiation, just makes the radioactive slush insoluble so that they can collect it and deal with it with less cost. It's a great idea.
I'm just hoping that some genious comes up with a safe way to speed up the nuclear decomposition so that the material stabilizes into non-radioactive elements. That will be a breakthrough!
--==-- I've found Karma to be a relative thing... Ya know, the kind you invite to Christmas...
Pros:
Cons:
Could this be the cure to the first of the two cons?
I believe the gist of the article is that the bacteria are able to turn a SOLUABLE form of uranium into a NON_SOLUABLE form. Therefor it is less ilkely to be dissolved (or far much less of it) into the groundwater and migrate to potable (drinkable) water suplies. Or You could "wash" the soil and introduce the bacteria into the water and have them "filter it out" , thereby purifying the water. It's been done with petroleum eating bacteria on oil spills, so why not nuke wastes. I even remember way back when I was taking some bacterial engineering classes, that some bacteria were selective enough to distinguish different ISOTOPES of elements - not 100% selective and therefore probably not good enough for nuke purification schemes..
..........FULL STOP.
Similar work cleaning up MTBE
Where can I get some of this amazing bacteria? My bedroom had to be quarantined off two months ago when I attempted to see if I could use uranium to overclock my Pentium 2, and I forget what color the carpet is... *sniff*
Associated Press Writer
WACO, Texas (AP) -- Medical examiners have identified a Negro body found in chest-high weeds near Waco as that of missing Baylor University Negro basketball player Patrick Dennehy.
McLennan County Sheriff Larry Lynch announced the identification late Sunday night. He wouldn't provide any other details, but said he had notified Dennehy's Negro family of the identification.
The site where the body was found is north of gravel pits where authorities searched last week after the arrest of fellow Negro Carlton Dotson, who played basketball at Baylor last season and had been living with Dennehy since spring.
...to deal with the nuculear waste products left behind by my roommates!
20 mil and I will! Learn Esperanto with 20M others.
There is a total revolution going on in all food production worldwide through the use of a class of microogranisms known as Purple Non-Sulfur Bacterias (PNSB's). The work was pioneered by a Japanese scientist who did research for 20 years to perfect a synergistic formula of different microogranisms that work together, including the PNSB's, lactic acid bacteria, and yeasts.
Almost all organic farms are now spraying soil with this solution. Additionally, people who raise animals are feeding it to their animals. Not just organic farmers, but even traditional mass production farms in the US because it lets them *totally eliminate anti-biotics and hormones* due the increased nutrition the microbes afford creates who consume them.
Human beings are actually supplementing with these as well. It is very popular in Japan and South Korea, and is becoming popular in America.
The PNSB's act as reducing agents, ie, antioxidants. So, the break things down by creating antioxidants that eliminate the material over time, as opposed to oxidizing bacteria that makes things putrify and rot. The reduction ability of the PNSB's is why the US military uses the same exact solution as the farmers and humans do, to break down toxic waste from weapons and nuclear power plants.
Have a look at:
http://www.rawpaleodiet.org/em/
http://www.antioxbew.com/
My DVD and Game Collection Tracking L
How many cubits is it?
As I've learned from Saturday morning television, there has been an answer for this for years. You combine the power of the five rings to form Captain Planet, and he cleans up the nuclear waste and puts the perpetrators in jail. Sheesh, you'd think these so-called "intelligent" scientists could be bothered to turn on the TV every once in an while.
Radioactivity doesn't just go away... it is not a chemical reaction, but physical instability in the nucleus of the uranium.. This may chemically break down uranium... but still. the microbes will be exposed to toxic amounts of radiation (by human standards). This is what is dangerous about uranium... where as it may be toxic as a chemical it is also radioactively toxic. the microbes might be able to break it all down into uranite. but it seems they are only dealing w/ microbes as a way to chemcially treat stable uranium...
still doesn't solve the question of radioactive waste does it?
This was done before on a test site near the Hanford nuclear facility in Washington (state), US. Only with that, they used the population of microbes already in the area that needed methane in order to properly metabolize the contaminated elements. They pumped a continuous stream of methane into the ground to help the microbes thrive and do their job, and when finished simply turned it off and let them return to natural levels.
A simple control mechanism such as that, especially using elements already found in nature, will be far more acceptable to the general public (fed on many a recent techno-thriller) as well as the tin-foil-beanie crowd (though just barely).
Any spoon would be too big.
The microbe drinks water+uranium, then pees water and evacuates solid uranium.
Great... then what? Does it just lives forever there or could it carry its radiation outside?
Oh, it is genetically programmed to die? Good.
But, what if some environmental condition provoked further genetic changes? Like radiation, for instance.
Then it wouldn't die, would it?
At the rate GWB is starting wars around the world we won't have any need for these microbes. Just convert all that pesky radioactive waste into armor piercing DU ammunition and fire it at those turd-world Muslimaniac turban-wearing loonies from Iraqastan who are always screwing around with our oil.
This story was on SF Gate 2 weeks ago and I submitted it that day. The weird thing is that my submission was and still is listed as accepted but the story was never posted. Now it finally shows up.
:)
Maybe the microbes had to chew through some bowel obstructions to allow the accepted stories to clear through.
~~~~~~~
"You are not remembered for doing what is expected of you." - Atul Chitnis
Sorry for the caps, need this to get more attention than the parent post. This was not done in Hanford, but rather at the Savannah River Site in South Carolina (dunno how I confused'em).
i oremediation.html
PBS did a special on this in their "Intimate Strangers" series on microbes - so titled because they're everywhere and represent a major interdependency but largely unacknowledged.
A summary of that particular episode is at: http://www.pbs.org/opb/intimatestrangers/newage/b
Any spoon would be too big.
http://65.30.133.145/images/kevin/
http://65.30.133.145/images/kevin/
Same deal with antibiotics, or any other organism and the cruel cruel world. That's how life works -- more organisms are born they can survive, the ones with bad mutations don't survive under "normal" conditions, but when conditions change, normal and abnormal swap places, the ones that used to live die, and some of the ones that used to die now live.
Infuriate left and right
But there are a lot of people out there who think having radioactive symbols on their case mods is a cool idea, why not give them a reason to have that radioactive symbol: RADIOACTIVE CPUS! They fry everything, including living flesh, but they're definitely the hottest thing on the market! No cooling fan will cool this down!
And I know enough spider man geeks that I know I could make good money off of selling them radioactive material and spiders...
Or of course the US could try to sell it to some of these third world countries so they'll have some WMDs for the next war!
Hey, I know some poor college students who don't have heating in their rooms, they could use this! I'm sure they don't mind, if they ddon't die from the radiation, there's always the cafeteria food...
And I'm sure you could make some mean cell phones using some sort of radioactive waste battery type thing... I mean, people are already paranoid about the radiation, why not validate those fears?
Wy would you use depletede uranium to make your reactor rods? Most other nuclear rods use enriched uranium.
If Mr. Edison had thought smarter he wouldn't sweat as much. --Nikola Tesla
Both on the microbes themselves (who may mutate or develop into something quite different) and the containment of the microbes themselves? What happens if they escape into an uncontrolled environment (I'm thinking on the lines of the killer bees)? The problem is alternate _safe_ sources of energy not microbes to cleanup the mess. Why not put this much effort into wind/solar technology and eliminate the need for such stuff to begin with?
http://www.dtra.mil/news/fact/nw_hnforce.html
They were "airburst" nukes. That means that there isn't as much contaminated material as there would be if the fireball contacted the earth.
With an airburst, the contamination can be washed away. Even though this only moves the residual contamination to another area.
If this had been a groundburst, there would have been a lot more radiation contamination to clean up.
Groundwater is poluted by engine oil, petrol, and jp5 jet fuel leaking from storage tanks in all 50 states and every country on the globe.
/.
Hydrocarbon groundwater pollution is a much more widespread problem than soluable uranium. People with water wells 10 miles from Miami International Airport (MIA) can smell JP5 jet fuel in their well water. This is clear cut opportunity for bioremediation. People store and therefore leak hydrocarbons where they can and do use them.
As population and water needs rise, and supply dwindles, the US Federal Government has been forced to act. In the 1990's, to reduce the hydrocarbon pollution of groundwater, the US Government forced every gas station (petrol filling station) to dig up every storage tank and the soils surrounding the tank, and leave the dirt in piles to "off gas" the hydro carbons for months. And after off gassing, station owners had to replace the tanks with less leaky modern tanks.
Because water is essential for life, yet difficult to move economically, there will be increased border wars and politcal fights to control rivers and aquafers. We are watching a war for control of the oil rich country of Iraq. We will see similar fights and politcal disputes for control of rivers and dams on many international rivers. We will also see a marked rise in the trade of grain, one of the few water intensive commodities that can be traded economically.
All of this spells a golden opportunity for bioremediation of hydrocarbons, to help cities, farms, and countries to improve supply of potable water.
Mac refugee, paper MCSE, Linux wanna be
and first person to mention knoppix on
Comment removed based on user account deletion
Best.
Modding.
EVAR!
I amuse myself.
Check it check it out - he's not just your average hironemous coward...
So do we end up with a bunch or radioactive microbes then? Now you can have nuclear+bioterrorism all rolled in one easy-to-deploy package!!!
Considering all nuclear reactors together may be rash. Aren't Canadian, Russian, and American nuclear reactors all quite different? For starters, I know that American reactors can't explode, the way Russian reactors could (Chernobyl anyone?) . They experience "meltdowns" instead, although I don't think it's ever happened.
Canadian reactors use weapons grade plutonium and uranium, rather than whatever it is that other reactors use (which is how India and Pakistan got their hands on nuclear material -- from nuclear reactors bought from Canada). I remember there was a big fuss during the Clinton administration, because the plutonium and uranamium from a number of decomissioned nuclear weapons was going to be shipped to Canada, and people on both sides of the border weren't too keen on that.
So -- as far as environmentally friendliness is concerned, how do the different types of reactors stack up?
Criddle will be working with several bacteria
Note to self: co workers.
--
the trailer for Half-Life 2, you can't fool me
* less expensive
* Clean: no polution
* less radiation than coal burning, unless you go swimming in the waste pools
I just don't want to catch nuclear flesh-eating bacteria.
What those who speak in praise of the city haven't mentioned is that the swan pond that I'm looking at is surrounded by a fence, that you can't fish anywhere downstream of the labs for miles and miles, and that there are still barrels of STUFF that we don't even know exist buried around the countryside. Sure, on the surface things are fine, but that's because the heavy metals have long since sunken into the earth.
It's not like the situation hasn't gotten infinitely better since the initial mismanagement of the lab (alluded to by a previous poster and by Richard Feynmann's 'The Pleasure of Finding Things Out'). We built an onsite waste management facility, as part of the cleanup led by Bechtel Jacobs. It was a step in the right direction for the lab, as it allows us not only to repair damage already done, but to prevent causing further harm to the environment as research on radioactive materials continues. (side note: we prefer the term 'rare isotope'... It doesn't scare the populace). The cleanup process was not painless, as this proposal by Bechtel Jacobs (the company leading the multi-billion dollar effort) and article from the Knoxville News-Sentinel indicate. We're nearly done, though. Occasionally something surprises us, but the situation's better than it was.
So, on to the article at last... These microbes don't have a huge utility value here, but they have great potential. Chernobyl, anyone? If there's another uncontained meltdown, these little buggers can be deployed almost immediately (via aerosol spray delivered in an overfly by crop dusters) to begin to counteract the fatal seep of irradiated cadmium and contaminated nickel. It's not of use now, but it's a valuable tool to have in our box.
while (!sleep){
sheep++;
}
I've always wondered about terraforming Venus by seeding its clouds with a bioengineered microbe/alga/yeast etc that can metabolize carbon dioxide and sulfur compounds into something solid.
There's plenty of energy to work with, and the bugs wouldn't have to survive at surface temperature/pressure: they'd start high in the atmosphere at first (balancing light against heat/pressure) and gradually eat their way down to the ground.
It's be a dusty planet, but more useful than it is now. (Sorry about those amazing "inferno lichens" we starved/froze.) Also a good example of an induced ecological catastrophe on a planetary scale.
Well, I think this Slashdot headline is a little misleading, it makes it sound like these microbes are somehow removing radioactive material, which is obviously impossible. You can't change one elemental isotope into another one with any chemical reaction (which means no biological reaction either)
What they're doing is changing one molecule involving uranium (which is water soluble) into another molecule involving uranium (which isn't). Everything stays just as radioactive, but not dissolved in water.
ReadThe ReflectionEngine, a cyberpunk style n
What's wrong with Hiroshima or Nagasaki?
ReadThe ReflectionEngine, a cyberpunk style n
Criddle's uranium experiments involve lowering the acidity of the microbes' environment and nourishing them with ethanol to "get them all happy," as Criddle says. Doing so encourages them to go to work on the uranium by reducing oxides of the radioactive uranium and thereby rendering them insoluble.
What will the microbes consume for the eventual hangover?
Don't let these toxin-eating microbes get anywhere near western Washington state! Remember the last scene in Raiders of the Lost Ark? They'd need to bring in even more microbes to clean up after the first ones.
Healthcare article at Kuro5hin
Up your but(t)! You got all the microbes eating your faeces away.
Actually, I have some "oil and grease cleaner" from griots garage (http://www.griotsgarage.com/catalog.jsp?&SKU=1112 8) that uses microbes to eat oil.
You just spray on an oil spot (say, on a painted garage floor), or kitchen counter, or when you get greese in clothes, let it sit for 5-15 minutes (keeping wet). The microbes consume the oil-based stuff and produce water-soluable waste so you can just mop/wash it right out.
Kinda pricy, but works well.
Dirty bombs & nuclear weapons.
Why did GEAR crush RDP?
Gee, I must be bored or something...:)
The purpose of life is to find the purpose of life.
Better not tell PETA.
You repeat this lie over and over again but nothing will clean up the radiation of nuclear energy. It release radition during mining, fuel prep, during the generation, and most of all it create terriblity radioactive waste that will be hot for 100,000 years or more. No economic comparsion can be complete with factoring the cost of taking care of this crap for 100,000 years AND that will probably be the most expense thing in human history. The nuclear lobby has managed to dump this cost on our government and to add insult to injury, they have a special exemption from libility. So, it al-Queda did manage to blast open a containment vessel and engineer a meltdown or even if it was an accident on the scale that one in the Ukraine, no one is libel. You can't sue and your insurance will not cover it.
Nuclear is dirty as hell and the nuclear energy is full of lying scum bags.
What about wind power? What about solar?