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US 12,612,316 B2Granted
Fluid treatment method and plant
AssigneeSuez International
InventorsMélanie Delaire, Ludovic Tricottet
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Abstract
A method for treating a fluid, notably liquid, in particular water, containing pollutants, is performed by passing a downward stream of fluid through a bed of activated carbon in the form of grains in a treatment station. The method includes a partial renewal of activated carbon including at least one injection of activated carbon and at least one extraction of activated carbon. An installation suitable for implementation of the fluid treatment method is also disclosed.
Claims12
A method for treating a fluid, containing pollutants, the method comprising:
- passing a downward stream of the fluid through a bed of activated carbon in the form of grains in a treatment station;
- partially renewing the activated carbon including at least one injection of activated carbon into the treatment station and at least one extraction of the activated carbon from the treatment station;
- a first production phase including passing the downward stream of the fluid through the bed of activated carbon in the treatment station;
- a first interruption phase including interrupting the downward stream of the fluid and removing fines from the activated carbon in the treatment station;
- a second production phase performed after the first interruption phase, the second production phase including passing the downward stream of the fluid through the bed of activated carbon in the treatment station;
- and
- a second interruption phase performed after the second production phase, the second interruption phase including interrupting the downward stream of the fluid and washing the activated carbon in the treatment station,
- wherein the first interruption phase does not include washing the activated carbon in the treatment station and wherein the second interruption phase does not include removing fines from the activated carbon in the treatment station.
5 more elements
An installation for treating a fluid, the installation comprising:
- a control device;
- and
- a treatment station comprising:
- (a) a bed of activated carbon in the form of grains,
- (b) an opening arranged for feeding the fluid to be treated into the treatment station,
- (c) an opening arranged for injecting activated carbon into the treatment station,
- (d) an opening arranged for recovering the treated fluid from the treatment station after passing through the bed of the activated carbon, and
- (e) an opening arranged for extracting the activated carbon from the treatment station,
- wherein the control device is configured to implement a method for treating the fluid, the method comprising:
- passing a downward stream of the fluid through the bed of activated carbon in the treatment station;
- partially renewing the activated carbon in the treatment station including at least one injection of activated carbon into the treatment station and at least one extraction of the activated carbon from the treatment station;
- a first production phase including passing the downward stream of the fluid through the bed of activated carbon in the treatment station;
- a first interruption phase including interrupting the downward stream of the fluid and removing fines from the activated carbon in the treatment station;
- a second production phase performed after the first interruption phase, the second production phase including passing the downward stream of the fluid through the bed of activated carbon in the treatment station;
- and
- a second interruption phase performed after the second production phase, the second interruption phase including interrupting the downward stream of the fluid and washing the activated carbon in the treatment station,
- wherein the first interruption phase does not include washing the activated carbon in the treatment station and wherein the second interruption phase does not include removing fines from the activated carbon in the treatment station.
14 more elements
Dependencies are inferred from the claim text.