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US 5,665,236 AGranted
Purification of liquids
AssigneeTecroveer (Proprietary) Limited
InventorZacharias Joseph Van Den Berg
Life of this patent
Estimating the term…
Abstract
A system for purifying a liquid including a reactor and a clarifier with the clarifier arranged at an elevated position relative to the reactor so that residue from the clarifier can be returned to the reactor hydrostatically. Liquid in the reactor is aerated using an agitating means with the agitating means also used to transfer liquid from the reactor to the clarifier. The liquid is fed to the clarifier at a constant, controlled rate.
Claims13
A method of purifying a liquid which includes
- feeding liquid to be purified into a receptacle;
- agitating the liquid in the receptacle by means of an aerating device;
- utilizing the aerating device for transferring the agitated liquid to a separating unit arranged downstream of the receptacle, the separating unit being configured to have a liquid level therein which is always higher than a maximum liquid level in the receptacle;
- controlling the rate of transfer of agitated liquid from the receptacle to the separating unit by depositing the liquid into a liquid carrying conduit arranged downstream of the aerating device and mounting a control means downstream of the conduit further to control the rate of transfer of liquid to the separating unit;
- and
- removing cleaner liquid from the separating unit and returning residue via an outlet of the separating unit to the receptacle hydrostatically.
3 more elements
A system for purifying a liquid, the system including
- a receptacle within which liquid to be purified is receivable;
- an agitating means arranged within the receptacle for agitating liquid contained in the receptacle;
- a separating unit arranged downstream of the agitating means, the separating unit having an inlet and an opposed outlet, the outlet being connected via a feed means to the receptacle and the separating unit being configured always to have a liquid level therein higher than a maximum liquid level in the receptacle such that residue in the separating unit is returned from the separating unit to the receptacle hydrostatically;
- and
- flow control means arranged intermediate the receptacle and the separating unit for controlling the rate of flow of liquid from the receptacle to the separating unit, the flow control means comprising a trough-like conduit arranged downstream of the agitating means and a flow control device arranged downstream of the conduit.
2 more elements
Dependencies are inferred from the claim text.