Bilge water

Schlag-versuch, m. impact test, percussion test, -wasser, n. bilge water, -welte, /. striking distance (of an electric spark), spark distance. -werk, n. striking appparatus, specif, rammer signal bell, -wetter, n. pi. fire damp. 

Penetration of rust through an otherwise intact paint film is usually a result of inadequate surface preparation before painting, especially over weathered and hand-cleaned steel. However, superficial rust staining may be traceable to dissolved iron salts, e.g. in bilge water from a ship s deck. 

BILGEKLEEN 1 99.95 (unit) 34.85 (refills) NA NA Removes hydrocarbon contamination from bilge water on boats... 

Hydrocarbon surveys in a shelf zone Separation of some parts of water area Trawling in the course of seafood fishing Disposal of bilge waters invasion of foreign exotic species of animals and plants Noise pollution Hypoxia Migration of loose bottom material... 

There were several cannons on the bottom level firing below the deck and just above the bilge water. 

To prove this, the bilge water was allowed to rise above the top of the pumps and other major obstructions. Additional unsuppressed tests were conducted and the pressure rise was much slower as suspected in an unobstructed area. This proved that pressure sensors can be used in empty spaces but not in obstructed large spaces. At this point the pressure sensors were no longer used and the UV fire detection systems were now used. 

Bilge water is the waste stream of (salt) water, fuel, oil, fats, detergents and others as found in the engine room of ships. The oil content of such water can be as high as 50%, the further composition cannot be quantified. Discharge of bilge water is a serious pollution item. Separation systems based on differences in density are not able to reach the discharge limit of 15 ppm as set by the new... 

Bilge water can be treated with HIC s ceramic membranes on shore or on board of the ship. In all cases a permeate with less than 15 ppm is reached with 0.2 im membranes, even in the presence of detergents. Fluxes vary between 50 and 1001/m h. 

The treatment of bilge water and emulsions resembles that of the treatment of oil field brines and produced water. Chen et al. [25], using ferric chloride and other chemicals to enhance the performance of Membralox 0.2, 0.5 and 0.8 pm membranes, describe permeate fluxes between 1400 and 34001/m h. Without pretreatment however severe fouling occurred as well as break-through of oil. Zaidi et al. [26] report about the continuation of this work. They quote fluxes between 800 and 12001/m h, but also mention substantial lower fluxes in long term pilot tests using 0.8 pm membranes. In addition they indicate a drop in permeate flux caused by conditions of low pH, the presence of sea water, corrosion inhibitor, oil slugs or flow variations. 

The analytical scheme described here was used with some modifications in a field study of the effectiveness of small-scale bilge water treatment (5) and in a study of the effectiveness of large-scale ballast treatment (6). 

The bilge waste treatment study in Fort Eustis, Virginia, involved sampling and analysis of untreated bilge water aboard a number of different kinds of watercraft and of the treated effluent. The ballast water... 

The GC-MS profiling of organic compounds present in the chloroform-extractable fraction of both treated and untreated bilge water disclosed that the aromatic compounds constituted the great bulk of organic matter present. 

HPLC analysis of the aromatic subfraction of the water-soluble and the chloroform-extractable fractions of untreated bilge water produced the following average proportions hydroxylated aromatics, 50% aromatic hydrocarbons, 46% and heterocyclics, 4% (Figures 5 and 6). In the treated effluent, the aromatic subfraction was found to be hydox-ylated aromatics, 79% aromatic hydrocarbons, 15% and heterocyclics, 5% (Figure 7). 

Lysyj, I. Russell, E. C. "Effectiveness of Bilge Water Treatment A Field... 

Shipping accidents may result in spills of oil, bilge water, and loss of shipped materials. The frequencies of accidents range from 1 x 10 to 2 x 10 per ship per year. Accidents are more Hkely to occur in coastal waters [168] and those involving oils are twice as frequent as those involving chemicals. However, of the latter, chemicals carried in bulk are of greatest concern. As mentioned previously, the International Maritime Organisation (IMO) has a database of such chemicals. 

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. 

Evaluation of SPPO membranes for removal of oil from bilge water... 

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