Abstract: The present invention relates to a process and apparatus for purifying waste gases by scrubbing with an adsorbent suspension. The adsorbent suspension in a concentration from 40 g/l to 200 g/l is here distributed uniformly or almost uniformly in at least one gas-scrubbing device, passed through at least one ordered mass transfer zone and contacted with the gas and then passed into at least one separately arranged reactor, the biologically degradable or convertible impurities are reacted, with the additional use of aerobic bacteria and oxygen, with forced motion and the purified liquid or suspension is recycled, wholly or as part stream, to the gas-scrubbing device, distributed therein and contacted again with the gas which is to be purified.

Abstract: The present invention relates to a process, an apparatus and a chemical agent for removing an organochemical component from a gas flowing through the froth scrubber tower at least a cross-sectional area of which is covered by a surfactant-containing froth. The surfactant-containing froth comprises at least one surfactant and a liquid and/or an organochemical solid that is soluble or dispersible in the surfactant, and a gas. The lower froth bubbles in the froth scrubber tower are destroyed by the inherent pressure of the continuously introduced froth and of the solvent taken up by the froth and by washing water and/or fresh solutions and the like introduced thereto. The liquified froth thus formed is withdrawn together with the organochemical components and subsequently separated from the surfactant-containing liquid.

Abstract: The present invention relates to a process, an apparatus and a chemical agent for removing an organochemical component from a gas flowing through the froth scrubber tower at least a cross-sectional area of which is covered by a surfactant-containing froth. The surfactant-containing froth comprises at least one surfactant and a liquid and/or an organochemical solid that is soluble or dispersible in the surfactant, and a gas. The lower froth bubbles in the froth scrubber tower are destroyed by the inherent pressure of the continuously introduced froth and of the solvent taken up by the froth and by washing water and/or fresh solutions and the like introduced thereto. The liquified froth thus formed is withdrawn together with the organochemical components and subsequently separated from the surfactant-containing liquid.