airtight tank

A biogas plant consists primarily of a large, often heated, airtight tank in which bacteria act on the organic waste to produce gas.

There weren't any Aronnians until a few Devernians foolish enough to domesticate the titans strapped airtight tanks to their backs and rode them from our star to theirs.

He made all his own appeals for stays of execution, and he learned four languages and wrote two best-selling books before he was put into an airtight tank with windows in it, and made to breathe cyanide gas.

The brazier, burning a match of linen or flax that produced intense heat and the characteristic thick smoke, was used to heat oil and the other ingredients in an airtight tank above it, a process that also helped to dissolve the resins into a fluid mixture.

They also house exhibitions that cannot be left unattended or unguarded, many of them in climate-controlled locations or other storage sites that require constant maintenance, like the 1,800-gallon airtight tanks that preserve the two dead giant squids on display at the Museum of Natural History.