decantation


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

decantation

 [de-kan-ta´shun]
the pouring of a clear supernatant liquid from a sediment.

de·can·ta·tion

(dē'kan-tā'shŭn),
Pouring off the clear upper portion of a fluid, leaving a sediment or precipitate.

decantation

/de·can·ta·tion/ (de″kan-ta´shun) the pouring of a clear supernatant liquid from a sediment.

decantation

the pouring of a clear supernatant liquid from a sediment.
References in periodicals archive ?
At the end of the decantation period, and for a reduced number of blends, the phases were carefully isolated by means of a syringe, and the following was determined: (a) the St partition coefficient, for samples that did not exhibit the intermediate BC-rich phase and (b) the unswollen morphologies of some of the isolated phases, by TEM.
Whereas sample B-100 was analyzed to evaluate the rheological behavior of biodiesel, sample E-3 evaluated the variation of the sample's viscosity with the temperature and thus the possibility of the temperature as an influential variable in the separation process of the biodieselglycerin phases by decantation or centrifugation.
The second phase of decantation takes place in the decanters, where the water is sent through a pressure pipe line from the pumping areas of the scale pit and the reception pool.
Processing is based on a conventional flowsheet that includes crushing and grinding, acid leaching, liquid-solid separation via counter current decantation, solvent extraction, yellowcake precipitation, and a paste tailings plant.
After the completion, microgel dispersions were allowed to cool, purified by centrifugation, decantation, washed with water and dialyzed for one week (Spectra/Por molecular porous membrane tubing, cutoff, 12000-14000) against very frequently pure water at room temperature to remove unreacted monomers, surfactants and other impurities.
The shaking and decantation periods showed differences among treatments in the fifty soils evaluated (Table 1).
RAWALPINDI, April 04, 2010 (Frontier Star ): District Coordination Officer (DCO) Rawalpindi, Imdad Ullah Bosal has directed operation cleanup against illogical decantation of LPG and sale of chemicals and petroleum products after completing a survey in this regard within 7 days.
As a result, in a similar way to decantation of central Middlesbrough to Teesdale Business Park, those with a need to be in Sunderland are being forced to look at locations such as Boldon and Monkton, both out-of-town but with a clear advantage of being A19 locations.
The serum is obtained through the natural decantation at room temperature and the process build about one hour.
In addition, it has the ability to separate products by distillation and decantation.
The A$1,000 million joint venture between Anaconda Nickel and Glencore International, will produce 1150,000 t/y of nickel and 9,000 t of cobalt in a three phase project incorporating four pressure leach autoclaves (each costing around A$10 million), a counter current decantation wash circuit, a slurry neutralisation circuit, a mixed sulphide precipitation circuit and a nickel-cobalt refinery.