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Decantation

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decantation [′dē‚kan′tā·shən]
(engineering)
A method for mechanical dewatering of a wet solid by pouring off the liquid without disturbing underlying sediment or precipitate.

Decantation 

the pouring off of liquid from underlying sediment. Decantation is a laboratory and technical method of washing amorphous precipitates, making possible a more complete removal of mother liquor than does washing the precipitate through a filter. It is also used to extract soluble substances from powdered solid raw material (for example, for removing the sugar solution after treating sugar beet cossettes with hot water).

REFERENCES

Voskresenskii, P. I. Tekhnika laboratornykh rabot, 9th ed. Moscow, 1969.
Kasatkin, A. G. Osnovnye protsessy i apparaty khimicheskoi tekhnologii, 7th ed. Moscow, 1961.


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In such situation even with the bridging facility for refuelling that is provided by the Oil Management Committee, serious concerns remains such as bridging stocks 7000 metric ton per day as delivery through bridging requires additional time due to tank lorry decantation for example a minimum of 2 days is required for pumping 500 metric ton that too without electricity failures to airport hydrant line.
In such situation even with the bridging facility for refuelling that is provided by the Oil Management Committee, serious concerns remains such as bridging stocks 7000 metric ton per day as delivery through bridging requires additional time due to tank lorry decantation for example a minimum of 2 days is required for pumping 500 metric ton that too without electricity failures to airport hydrant line.
quot; A few days later they separated barium sulphate by decantation, leaving potassium tartrate in solution.
 
 
 
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