Bunding

Storage tanks should always be closely surrounded by bund walls to contain crude in the event of a spillage incident, such as a ruptured pipe or tank, and to allow fire fighting personnel and equipment to be positioned reasonably close to the tanks by providing protected access. 

Drainage systems inside the bund wall should be only be open when the outlet can be monitored to avoid hydrocarbon liquids run-off in the event of an unforeseen release of crude. 

J. Rusborg, J. Schuhknecht, G. Koppke, B. Herrmann Ultraschallpriifung von Bund-Klebeverbindungen an GFK-Rohren in Kraftwerken , DGZfP Dresden 1997. 

We ai e free to pick a tefei ence poitit of energy once, but otily otice, for each system, l,et us choose the reference point t.. We have obtained the energy eigenvalues of the x bond in ethylene as one [f greater than y. 011)11 bunding) and one p lower than y ( bunding) (Fig, 6-3),... 

The allyl free radical with 3 electrons, 2 in the bunding orbital and I in the nonbonding orbital, has... 

Bundes-Anzeiger (German Federal Gazette), edited by the Federal Minister of Justice. 

A. SegmuUer and M. Murakami. Characterization of Thin Films by X-Ray Diffraction. In Thin Films from Free Atoms and Particles. (K.J. Kla-bunde, ed.) Academic Press, Orlando, 1985, p.325 A recent brief review article with many references. 

Provide means to contain spillages, e.g. bund walls, kerbs Eliminate ignition sources... 

Storage Segregated storage Uncongested storage of combustibles gangways/adequate breaks Material stacked in the open should be away from windows Flammable liquids in properly designed storerooms bulk quantities in fixed, bunded, adequately spaced tanks... 

Monitor stock, e.g. temperature, pressure, reaction, inhibitor content, degradation of substance, deterioration of packaging or containers/corrosion, leakages, condition of label, expiry date, undesirable by-products (e.g. peroxides in ethers) Spillage control bund, spray, blanket, containment. Drain to collection pit Decontamination and first-aid provisions, e.g. neutralize/destroy, fire-fighting Contain/vent pressure generated to a safe area... 

Any bunded area, pit, trench, depression or drain falling within a Zone 1 or Zone 2 area should be treated as being a Zone 1 area throughout. 

Spillages from this area should be contained in a bund, or similar arrangement. 

Protective clothing/equipment and emergency equipment Drains and floor drainage bund walls Electrical equipment earthing and bonding... 

Bunding of storage areas, segregation of waste storage areas, security of landfill sites, etc. 

Spillages resulting from overfilling should be retained in tank dikes (bunds). But very often the drain valves on the dikes—installed so that rainwater can be removed—have been left open, and the spillage is lost to drain (see Section 5.5.2 c). 

Code of practice Pressure/vacuum vaive Bund... 

A. Bunde, S. Havlin. Fractals and Disordered Systems. Berlin Springer-Verlag, 1991, pp. 1-350. 

For example, leinicyanoel%lene has a formal C=C douMe bond (l33.9[an) in the free ligand but m Ihe complex [Pl C2(CN)4l(PPh3)2) the C-C dislance (152pm) is that of a single bund and Ihe CN o[Pg.931]

Bund, m. band, tie hoop, collar, flange alliance. — n. bundle, bunch. 

Biindel, n. bundle, bunch parcel, packet (of rays) pencil, beam (of waves) packet, biindeln, v.t. focus, concentrate bundle, bunch. Bundes-rat, tn. federal council. -tag, tn. federal diet. 

Drei breaner, m. triple burner, -bund, m. triple alliance. 

Where, of necessity, the vent pipe rises to a considerable height, excessive internal pressure on the tank may result, due to the pressure head of oil should an overflow occur. To prevent any possible tank failure due to such an occurrence a vent pipe pressure-relief device must be provided. It should be self-draining to reduce the risk of blockage, particularly when using heavy oil fuel. Codes require that these devices should not place any restriction on oil flow and must discharge within the bund area. 

Where overfilling or leakage from the tank would contribute to a fire hazard, cause damage to property or contaminate drains or sewers, a bund wall should be constructed around the tank. This should be of brick or concrete with an oil-tight lining, and sealed to the concrete base under the tank supports. The capacity of the bunded area should be at least 10 per cent greater than that of the storage tanks contained within it. 

The bund walls must be oil proof and be capable of withstanding considerable liquid pressure in the event of an overflow or other emergency. No permanent drain must be incorporated into a bund area, but suitable facilities should be provided to remove rainwater that may accumulate. A sump and semi-rotary hand pump are suitable for this purpose. 

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