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Normally oily water

Common practice and a general guide is to prevent combustible vapors from transmitting from one process area to another process area, generally 15.2 meters (50 ft.) or more away. Usually unsealed receptacles, such as drain funnels, tundishes, drain boxes, are routed to the nearest local sealed catch basin and then into the oily water sewer main. The unsealed receptacles are only allowed in the same process area equipment where if vapors where released from an adjacent unsealed receptacle it would be "immaterial" due to the proximity to where the liquid is being drained and would normally emit vapors. [Pg.105]

A process oily water sewer system is a convenient location to direct oily wastes. The oily water system normally collects into a sump. If several lines connect into a common header, care should be taken to prevent backflow into another outlet source. In such cases use of an air gap, i.e., drainage in to a collection ftinnel has be advantageous. [Pg.140]

An adequate drainage system should be provided for all locations where a large amount of liquid has the possibility of release and may accumulate according to the terms of the risk analysis frequency levels. Normal practice is to ensure adequate drainage capability exists at all pumps, tanks, vessels, columns, etc., supplemented by area surface runoff or general area catch basins. Sewer systems are normally gravity flow for either sanitary requirements or oily water surface disposal. Where insufficient elevation is available for the main header, sump collection pits are provided, fitted with... [Pg.171]

Triethanolamine of formula N(C2H40H)3 is an oily water-soluble liquid having a fishy odor and is produced by reacting ammonia with ethylene oxide. Normally it is used in combination with other chemicals in admixture formulations. Its first use was reported in 1936, and the formulation containing TEA interground with calcium lignosulfonate was used to increase early strengths. [Pg.153]

Pollution prevention - Oily bilge water is stored on board and discharged to a shore receptacle when the vessel berths for unloading. Oily water separators are rarely provided for smaller coastal vessels. Engine exhaust gases are normally visually monitored. [Pg.87]

When the emulsion can no longer be used, it must be separated so that the two phases can be easily disposed of. Ultraflltration of stable oil-water emulsions produces a pure water and an impure oily phase. Normally the water stream can be... [Pg.282]

Most units are designed for a 20- to 40-psig (140- to 280-kPa) contact pressure. Normally, 20-50% of the treated water is recirculated for contact with the gas. The gas saturated water is then injected into the flotation tank as shown in Figure 3.37. The dissolved gas breaks out of the oily water solution when the water pressure is flashed (reduced) to the low operating pressure of the gas flotation unit, in small-diameter bubbles that contact the oil droplets in the water and bring them to the surface in froth. This type of flotation unit typically has not worked well in the oil field. [Pg.170]

Depending on the fluid compositions, either a two- or three-phase separator can be used. Normally, the flash separator should not have any hydrocarbon liquid however, due to poor upstream separation, the separator may have a tiiree-phase fluid. A two-phase separator is adequate in most cases, though, depending on the requirements, a three-phase separator is also used. In case of a three-phase separator, the glycol-water is fed to the regenerator column, and the hydrocarbon phase is drained to the oily water system. [Pg.397]

Although it is hard to draw a sharp distinction, emulsions and foams are somewhat different from systems normally referred to as colloidal. Thus, whereas ordinary cream is an oil-in-water emulsion, the very fine aqueous suspension of oil droplets that results from the condensation of oily steam is essentially colloidal and is called an oil hydrosol. In this case the oil occupies only a small fraction of the volume of the system, and the particles of oil are small enough that their natural sedimentation rate is so slow that even small thermal convection currents suffice to keep them suspended for a cream, on the other hand, as also is the case for foams, the inner phase constitutes a sizable fraction of the total volume, and the system consists of a network of interfaces that are prevented from collapsing or coalescing by virtue of adsorbed films or electrical repulsions. [Pg.500]

Distil the filtered ethereal solution, using a 100 ml. flask fitted with a dropping-funnel and a side-arm for the condenser observe all the normal precautions for ether distillation (p. 162) and run the ethereal solution into the flask as fast as the ether distils over. When all the ether has distilled off, detach and cool the flask, when the oily colourless residue of saligenin will rapidly crystallise. Weight of product, 5-0 g. m.p. 75-82°. Recrystallise either from a mixture of benzene and petroleum (b.p. 60-80°), or from a minimum of water, allowing the stirred aqueous solution to cool to 65-70° before chilling. The dry crystalline saligenin has m.p. 85-86°. [Pg.156]

The decanted aqueous phase was extracted three times with a total of 150 ml of ethyl acetate. The combined organic solutions were filtered over Clarcel and extracted three times with a total of 150 ml of an Iced normal aqueous methane-sulfonic acid solution. The combined acid extracts were rendered alkaline on an ice bath with 30 ml of ION caustic soda solution. The separated oil was extracted four times with a total of 200 ml of ether. The combined ethereal extracts were washed twelve times with a totai of 360 ml of distilled water, dried over anhydrous magnesium sulfate in the presence of 0.3 g of animal charcoal and evaporated under reduced pressure on a water bath at 40°C. The oily residue obtained (3.8 g) was dissolved in 30 ml of boiling acetonitrile. After cooling for 2 hours at 3°C, the crystals formed were separated, washed with 5 ml of acetonitrile and dried at ambient temperature at low pressure. [Pg.1347]

Certain small-volume injections are available where the dmg is dissolved in a viscous oil because it is insoluble in water non-aqueous solvent must be used, hi addition, drags in non-aqueous solvents provide a depot effect, for example for hormonal compounds. The intramuscular route of injection must be used. The vehicle may be a metabolizable fixed oil such as arachis or sesame oil (but not a mineral oil) or an ester such as ethyl oleate which is also metabolizable. The latter is less viscous and therefore easier to administer but the depot effect is of shorter duration. The dmg is normally dissolved in the oil, filtered under pressure and distributed into ampoules. After sealing, the ampoules are sterilized by dry heat, for example, at 160°C for 2 hours. A bactericide is probably ineffective in such a medium and therefore offers very httle protection against contamination in a multidose oily injection. [Pg.415]

B4. Barnes, B. C., Wollaeger, E. E., and Mason, H. L., The comparative absorption of vitamin A from a water-miscible and an oily preparation by normal human adults and patients with steatorrhea. J. Clin. Invest. 29, 982-987 (1950). [Pg.111]

Like ferric nitrate, antimony sulfate is decomposed by water, various basic salts being formed, the simplest of which has the formula (SbOLSCL. The normal salt is stable only in rather concentrated sulfuric acid. Since this latter solvent has almost no vapor pressure at ordinary temperatures, the moist salt cannot be dried by evaporation of the solvent. It cannot be dried on absorbent paper, since the oily liquid rapidly carbonizes it. In such a case, it is best to take advantage of the drying qualities of unglazed earthenware (porous plate), such as the biscuit which forms the body of dishes. Owing to the fine pores which this material contains, liquids are sucked up by it by capillary attraction, and it is not acted upon by most reagents. [Pg.32]

Sulfuric acid is a colorless, corrosive, oily liquid that boils (and decomposes) at about 300°C. It has three chemically important properties it is a strong Bronsted acid, a dehydrating agent, and an oxidizing agent (Fig. 15.17). Sulfuric acid is a strong acid in the sense that its first deprotonation is almost complete at normal concentrations in water. [Pg.872]

Microscopic Examination.—A few grams of the chocolate are freed from fat by extraction with carbon tetrachloride and from sugar by washing on a filter with a little alcohol and then with cold water. The residue, well mixed in a mortar, is examined with a magnification of 300-400 diameters, best in comparison with products of known origin. Such examination will show if the normal constituents of pure chocolate are accompanied by starch or flour of cereals, chestnuts (see Fig. 32 of Plate IV in the chapter on Flour) or oily seeds, or powdered cacao husks. [Pg.152]


See other pages where Normally oily water is mentioned: [Pg.50]    [Pg.50]    [Pg.220]    [Pg.129]    [Pg.104]    [Pg.134]    [Pg.208]    [Pg.357]    [Pg.31]    [Pg.119]    [Pg.19]    [Pg.17]    [Pg.172]    [Pg.489]    [Pg.41]    [Pg.75]    [Pg.198]    [Pg.162]    [Pg.803]    [Pg.758]    [Pg.357]    [Pg.475]    [Pg.222]    [Pg.111]    [Pg.510]    [Pg.684]    [Pg.784]    [Pg.75]    [Pg.20]    [Pg.245]    [Pg.349]    [Pg.352]   


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Oiliness

Water normal

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