Industrial fluids
GEA has many years' experience of treating bilgewater on ships. The process developed is also ideal for use on land to treat oily water – coming from tank wash or bilges, for example.
Oily water results from sea and cooling water, fuel and lube oil leaks, drainages from settling and sludge tanks, effluents from various cleaning processes and soot and dirt particles. To treat oily water, GEA uses a system which has been successful in treating bilgewater on land or on board for many years. Under normal feed conditions, the residual oil content in the clean water drain is 10 to 12 ppm. Supplementary aggregates allow the oil content to be reduced to below 5 ppm. This creates effectively pure water which can be returned to the natural water circuit. No high-cost disposal is required.
A further economic benefit is in the recovery of valuable energy resources. The oil recycled from the separation process can be re-used as fuel oil, for example. Recovered lube oil can be used as a fuel to generate heat.
The system is also self-cleaning, so no additional staff is required. Alternative methods on the other hand, such as static separation by sedimentation tank or filtration for example, require either cost-intensive, periodic manual cleaning or replacement of filter elements. Chemicals are also frequently required as well – these are not only costly, but can also damage the environment.
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GEA separators are designed for liquid-based applications. Using centrifugal force, they are used for separating suspensions consisting of two or more phases of different densities, i.e. they can be used for liquid-liquid separation, for liquid-liquid-solid separation or for liquid-solid separation. They are equally as effective at separating liq...
The decanter’s hour has come as soon as the solids content in the suspension to be processed is particularly high. These machines provide the benefits of high clarifying efficiency and maximum dewatering as well as the separation of liquids with the simultaneous removal of solids. The main requirements in this respect include a high bowl speed, a...
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