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US 6,199,329 B1Granted
Liquid storage system
AssigneePetroleo Brasileiro S.A. - Petrobras
InventorAldyr Witter
Life of this patent
Estimating the term…
Abstract
This invention relates to a liquid storage system for storing liquid products, particularly petroleum and its derivatives. An auxiliary dam (1) within a bund defined by a main dam (3) bounds an area (5) around a tank (2) in such a way that the contaminating wastes from the fluids stored in the tank are contained within that area (5). This arrangement reduces the volume of contaminated rainwater within the bund, consequently reducing the costs of water treatment for subsequent discharge to the stormwater drain system
Claims5
A liquid storage system comprising:
- a liquid product storage tank;
- a main dam surrounding said liquid product storage tank and bounding a bund;
- an auxiliary dam which wholly surrounds said liquid product storage tank and is positioned between said main dam bounding said bund and an outer wall of said liquid product storage tank so as to define, within the said bund, an inner area and an outer area, said inner area surrounding said liquid storage tank for receiving contaminating wastes from said liquid storage tank, said outer area being bounded by the auxiliary dam at an inner periphery thereof and by said main dam bounding said bund at an outer periphery thereof, said outer area being substantially free of said contaminating wastes, said auxiliary dam being positioned adjacent an outer wall of said liquid product storage tank whereby said inner area is substantially smaller than said outer area;
- and
- a volume of substantially uncontaminated water maintained in said outer area between said auxiliary dam and said main dam, said volume of water having a depth sufficient to substantially inhibit growth of vegetation in said outer area.
2 more elements
Dependencies are inferred from the claim text.