초록 ▼

In order to remove organic constituents from an aqueous stream, the aqueous stream is combined with an adsorbent consisting of small particles to produce a dispersion in order to bind the contamination by adsorption on the small particles. The dispersion is concentrated to produce a slurry and the a

In order to remove organic constituents from an aqueous stream, the aqueous stream is combined with an adsorbent consisting of small particles to produce a dispersion in order to bind the contamination by adsorption on the small particles. The dispersion is concentrated to produce a slurry and the adsorbent is then regenerated by oxidation. The particles of the adsorbent are smaller than 200 .mu.m and the oxidation can take place as partial oxidation at a temperature of between 25 and 130.degree. C. and a pressure of between 1 and 3 bars. A reduction in volume of at least 90% is achieved on concentration to produce a slurry and the method is carried out continuously.

대표청구항 ▼

[ We claim:] [1.] In a method for removing organic and/or metallo-organic constituents from an aqueous stream, comprising in succession the following steps:combining the aqueous stream with an adsorbent consisting of small particles, to produce a dispersion in order to bind the constituents by adsor

[ We claim:] [1.] In a method for removing organic and/or metallo-organic constituents from an aqueous stream, comprising in succession the following steps:combining the aqueous stream with an adsorbent consisting of small particles, to produce a dispersion in order to bind the constituents by adsorption on the small particles;concentrating the dispersion to produce a slurry;subjecting the concentrated slurry to a regeneration step by oxidation;the improvement wherein:the particles of the adsorbent are held captive in a closed system;the particles of the adsorbent are smaller than 200 .mu.m;the dispersion undergoes a volume reduction of at least 90% during concentration to produce the slurry;the regeneration by oxidation takes place at a temperature below 95.degree. C. and a pressure of about 1 bar (atmospheric); andthe method is carried out continuously.