Liquid storage tanks spill containment

Finally, dikes are located around process units and storage tanks to contain liquid spills. Emergency response plans are used to address extreme situations, inform the nearby community, and implement evacuation plans, if necessary. 

Edge of spill containment area for refrigerated, flammable, or combustible liquid storage tanks 15 ... 

May 12, 1980 (UN-lOO-N-34) - During the weekly transfer of sulfuric acid from the 108-N storage tank to the 163-N day tank, a rupture in the pipeline occurred. Approximately 13,000 L (3,400 gal) of sulfuric acid spilled into the containment vault, some of which overflowed to the ground. The acid in the containment vault was neutralized with 50 percent sodium hydroxide and pumped to the clearwell overflow (located south of the unit). The unknown amount of acid that overflowed to the ground was neutralized with soda ash and liquid sodium hydroxide (DOE-RL 1990). No further remediation has been documented. 

Double-wall storage tank A double-wali storage tank has an inner wall to contain a liquid, an annulus. space usually filled w ith insulation, and an outer wall for. spill containment. 

Because of the real risk of failure of. storage tanks and primar piping systems, means must be provided to contain the resulting spills. Containment may be a second tank wall around the vessel holding the liquid or a continuous dike designed to hold all of the liquid. stored in the largest tank. Dikes may be coasiructed of... 

Diked ASTs Fire codes dictate flammable and combustible liquid tanks have spill control in the form of dike, remote impounding, or small secondary containment tanks. The dike must contain the content of the largest tank to prevent hazardous liquids from endangering the public and property. Traditional bulk storage systems will include multiple tanks within a concrete or earthen dike wall. 

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