Every few days, the accumulated radon is pumped off, purified, and compressed into a small tube, which is then sealed and removed.
The Environment Agency (EA) said river levels needed to recede before water could be pumped off the Levels.
"Currymoor is a huge area of water - around 1,200 acres - all of which has to be pumped off, there's no other way of getting this water out," said Mr House.
After filling the powder into a quartz tube, air was pumped off at 5⋅10−6 Torr during 30 min followed by filling with He gas up to a pressure of 10−1-10−2 Torr and sealing of the tubes.
After heating to 300 K and leaving the sample in vacuo overnight, CO2, carbonic acid and the HBr hexahydrate are pumped off, and the non-volatile species remains.
After processing the calcite particles with acid droplets for one hour the atmosphere was pumped off in order to improve the signal-to-noise ratio of spectra.
Water is pumped off only to a small extent at 200 K within 71 min, as indicated by the broad OH stretching band centered at ∼3300 cm−1, which remains largely unaffected.
Scottish fans always embrace their duty to create an intimidating atmosphere for travelling teams to handle, and the supporters were pumped up before kick-off.
That Nigeria can be both so rich and so poor at the same time is down to oil, first extracted in the Niger delta in the 1950s and now increasingly being pumped from off shore.
To develop CBM reservoir, water in the fracture and coal seam must be continuously pumped off from coal seam to reduce pressure and desorb gas from matrix.
