Various processes onboard ships, such as machinery wash-down, maintenance, and leakage, generate oily wastewater. This contaminated water flow collects in the bilge of the ship. Marine diesel, lubricating oils, grease, as well as other contaminants may be present in bilge water. The bilge water is discharged overboard, with oil and grease concentrations in the discharged water limited by national and international regulations.
By Turner Designs Hydrocarbon Instruments, Inc. based in Fresno, CALIFORNIA (USA).
Metal-working factories generate a lot of oily effluent as a result of manufacturing processes. The coolant emulsions tailored to the individual application contain oils, waxes, greases and preservatives, as well as a cocktail of ingredients to improve product properties. The emulsions used must not be discharged untreated into the drain system or open bodies of water; they must be disposed of at high cost.
By H2O GmbH based in Steinen, GERMANY.
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