Abstract: A process of constructing a storage facility, such as a tank, and the resultant storage facility product having an integral foundation is disclosed. Piles having conjoining sides are driven into the earth along a storage facility perimeter and pressure grouted to form a watertight perimeter. The piles penetrate into the earth to a depth where either the percolation of any acquifier into the storage facility or the leakage of product from the storage facility can be prevented. After installation of the piles. Soil is thereafter excavated below the existent ground level from the interior of the closed pile perimeter to the storage facility depth. The excavated soil is placed in a preferably compacted embankment immediately exterior of the piles perimeter where it extends above the ambient ground level. This compacted embankment together with the subterranean portion of the pile perimeter is maintained in a closed fluid-tight relation by the soil pressure arching adjacent piles compressively together.

Abstract: Evaporation of water from a salt-saturated liquid is facilitated by adding a particulate solid having a density greater than that of the saturated liquid, and by maintaining a thin surface layer of liquid by settlement of the solids to leave an optimum one to two mils thickness of said layer.Agitation is employed to restore the optimum thin layer, as required to overcome excessive settling or too rapid evaporation of the thin layer, referred to respectively, as a heavy layer of liquid, or a dry surface skin.

Abstract: Water evaporates from a thin film, which can be developed over the surface of soil/water slurries, at a rate as much as 30 times that of the normal pan evaporation rate in a given locale. Utilizing this discovery, a slurry having suspended solid particles which are heavier than water are placed in a shallow lagoon. The slurry is then periodically agitated through its entire profile. This agitation is repeated as often as either the formation of a dry surface appears over the lagoon or, alternatively, a noticeable clear water skin forms over the suspended solids of the slurry. By the expedient of sequentially repeating the agitation, evaporation of water present in the slurry can occur at a rate on the order of 30 times the normal pan evaporation rate of a given locale.