Percolation


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percolation

[pər·kə′lā·shən]
(computer science)
The transfer of needed data back from secondary storage devices to main storage.
(hydrology)
Gravity flow of groundwater through the pore spaces in rock or soil.
(mining engineering)
Gentle movement of a solvent through an ore bed in order to extract a mineral.
(science and technology)
Slow movement of a liquid through a porous material.

Percolation

 

a method used to leach ores in a fixed bed, mainly, copper oxides and gold ores; leaching by this method is called percolation leaching. The process is carried out in a percolator tank. The pulverized ore is uniformly loaded onto the tank’s false bottom, which is a filtering device. The leaching solution is introduced either from beneath the false bottom, a process called upward leaching, or onto the surface of the load, a process called downward leaching; accordingly, the solution is collected either above or below the false bottom.

percolation

The downward movement of water into soil.
References in periodicals archive ?
The percolation behavior as a function of conductive filler content was compared for the ternary polymer blends and single-phase polymer systems.
In this paper, we consider the exposure-path prevention problem with percolation theory in 3D WSN scenarios.
Cahn, UC Cooperative Extension Monterey County, personal communication) and, as is discussed below, most of the irrigation season deep percolation occurred as a result of the early-season irrigations used to establish the crop.
08 cm depth, satisfactory results were obtained and water deep percolation depth was reduced to 0.
Since the percolation test is the tool most widely used to measure water flow capabilities of a field soil, several attempts have been made to find empirical relationships between the saturated hydraulic conductivity (Ks) and the percolation time (PT) with a hope of replacing the percolation test with a hydraulic conductivity test (Fritton, Ratvasky, & Petersen, 1986; Mulqueen & Rodgers, 2001; Winneberger, 1974).
If we only look for the percolation threshold, this test, performed for each plane along z, enables us to quickly stop the simulation when it does not percolate.
Regularities have been observed in the number of resulting clusters and in the number of step necessary to achieve percolation.
To describe this type of blocking, percolation theory is being used.
Detailed procedures for experimental determination of the filler percolation threshold in N234 filled BIMS using morphological methods can be found elsewhere (ref.
A simple thresholding (segmentation) could be used to isolate the porosity in the three-dimensional microstructure and examine percolation and transport properties such as conductivity [12] and permeability, as was performed previously for the microstructures obtained at the lower resolution [6].
Expand the plant's percolation ponds at an estimated cost of $4.
Tillman Water Reclamation Plant in the Sepulveda basin and spread for percolation into potable water aquifers.