APPARATUS AND METHOD FOR THE REMEOVAL OF A CONTAMINANT FROM A FLUID COMPRISING SAID CONTAMINANT

摘要

The present invention relates to an apparatus (1) for the removal of a contaminant from a fluid comprising said contaminant, in particular for the removal of heavy metals from water which is contaminated by heavy metals, which apparatus (1) comprises a reaction vessel (2) in which it is intended to treat the contaminated fluid with a particulate treatment agent (3), which reaction vessel (2), on its underside, is of substantially conical design and comprises an inlet (4) for the contaminated fluid which is to be treated and an outlet for the cleaned fluid. The apparatus (1) is characterized in that the outlet for cleaned fluid comprises an overflow (5) and the apparatus (1) being free of mechanical stirring means which, during use, can come into contact with the treatment agent (3), and the inlet (4) for contaminated fluid opening out in the vicinity of the bottom of the reaction vessel (2), and the apparatus (1) comprising flow-control means (7) in the inlet (4) for contaminated fluid, all this in such a manner that, when the apparatus (1) is in use, a dynamic bed of the treatment agent (3) is created, and that the treatment agent (3), as a result of a settling action under the influence of the force of gravity, substantially entirely remains in the reaction vessel (2). The invention also relates to a method for using the apparatus.