Methods of purifying oily water

The article describes currently used methods of cleaning ship oil-containing waters and suggests a new method their disposal. There are shown the specific features composition properties waters, current requirements for purification depending on areas operation vessel. main reasons oily emerging given, as well factors affecting formation ships. A picture water-fuel emulsion under microscope is illustrated. analyzed water ships, advantages disadvantages. given particular description methods: mechanical (straining, settling, centrifugation), physico-chemical (adsorption, coalescence, flotation), chemical (ozonation, electrochemical purification), biological thermal neutralization (wet burning, fire neutralization). presented one wastewater treatment, namely, scheme primary treatment using grate, when pass through numerous holes separated from foreign objects large solid inclusions. Another example design clarifier with inclined plates which flow passes along divided into layers, restrains mixing facilitates settling oil products. diagram coalescing filter (physico-chemical method) also its described. comparative characteristics utilization given. Special attention paid to development improvement technology waters. by heat diesel exhaust gases proposed.