«If we want to put waste where we'll never see it again,» he added, it should go at the bottom
of a deep borehole.
Scientists at The Geological Society of America (GSA) meeting in Denver will describe the potential of shale formations; challenges
of deep borehole disposal; and their progress in building a computer model to help improve understanding of the geologic processes that are important for safe disposal of high - level waste.
In the aftermath of Yucca's mothballing, the DOE has pursued a diverse strategy of nuclear waste management that includes tentative plans for consolidated interim storage facilities, tests
of deep boreholes as another possible long - term storage technique, and the development of «consent - based» siting protocols to gain support from municipal and state governments.
Reconstruction of the Earth's surface temperature based on data
of deep boreholes, global warming in the last millenium, and long - term solar cyclicity.
Not exact matches
The Kola
borehole is by far the
deepest one ever dug, yet it reaches a mere 0.2 percent
of the way to the core.
Together with the Disaster and Emergency Management Presidency
of Turkey AFAD, several 300 meter
deep holes are currently being drilled around the eastern Marmara Sea, into which highly sensitive
borehole seismometers will be placed.
Borehole advocates say tubes
of cesium and strontium waste stored in a pool at the Hanford site in Washington could go
deep underground.
Meanwhile, the Department
of Energy (DOE) in recent years has directed money to so - called «
deep boreholes» as a less - objectionable and cheaper way to deal with some
of the waste.
For example, an entire nuclear cycle involving light - water reactors, reprocessing
of the spent fuel, and disposal
of small «packages»
of highly radioactive nuclear waste in
deep boreholes could prove an attractive option, Moniz noted.
But the farthest we have ventured inside our own planet — the 7.6 - mile -
deep Kola Superdeep
Borehole in the Russian Arctic — got us only 0.4 percent
of the way to the core.
Though the concept
of borehole disposal, which would see radioactive waste entombed far
deeper than traditional repositories, has existed for decades, the idea has been revived in recent years, spurred by troubles in finding a long - term home for the country's spent fuel.
You will find Güralp instruments gathering seismic data in the harshest
of environments, from the Antarctic ice sheet; to
boreholes 100s
of metres
deep; to the world's most active volcanoes and
deepest ocean trenches.
Lake Whillans was slightly more than 2 meters
deep at the
borehole, and may reach a depth
of 10 meters or so.
In a system designed by NIBE Energy Systems Ltd
of Chesterfield, 11
boreholes 100 metres
deep were drilled into the school grounds before landscaping.
As far as this historic period is concerned, the reconstruction
of past temperatures based on
deep boreholes in
deep permafrost is one
of the best past temperature proxies we have (for the global regions with permafrost — polar regions and mountainous regions)-- as a signal
of average temperatures it's even more accurate than historic direct measurements
of the air temperature, since the earth's upper crust acts as a near perfect conservator
of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is frozen.
The solutions they considered were: setting up a rural water supply program providing poor communities in Africa with
deep boreholes and public hand pumps; developing campaigns that raise awareness
of disease transmission, health costs, and the social benefits
of sanitation; ensuring affected communities have access to technology to remove contaminants in raw water supplies; building reservoirs in some parts
of Africa, such as the sparsely inhabited Blue Nile gorge in Ethiopia.
The building has a closed loop geoexchange system with 280
boreholes 400 feet
deep; this cools or heats water which is piped through the thermal mass
of the concrete floors, heating or cooling the space.
«They had done far more extensive and sophisticated analysis
of the weather records, confirmed by «proxy» data such as studies
of tree rings and measurements
of old temperatures that lingered in
deep boreholes.»
Tree rings, coral skeletons, and glacial ice cores (Figure 3) are proxies for annual temperature records, while
boreholes (holes drilled
deep into Earth's crust) can show temperature shifts over longer periods
of time.
But fracking, which involves the high - pressure injection
of water or a fluid mixture into a
borehole to create cracks in
deep - rock formations through which gas or petroleum can flow, is inherently dangerous.