Venturi gas scrubber

wetchemical

1. Type of technology Wet collection. 2. Contaminants which can be removed Dusts and water soluble substances after checking the concentrations. 3. Emission limits possible As regards removal of dusts, collection efficiencies over 96% can be achieved without difficulty. Efficiencies concerning removal of water soluble substances are generally modest. 4. Description of the equipment and/or process Venturi scrubbers are based on the principle of atomization of the scrubbing liquid from the same gaseous flow containing the contaminant to be removed, which is forced to flow through one or more annular orifices, thus increasing its face velocity at that point by n times, and entraining the atomized water in virtue of the well known Venturi effect. During this phase there is the interaction between gas and liquid which causes the “capture” of the solid particles. This type of wet collector is horizontal in arrangement, therefore it takes up very more less space compared to the classic scrubbing tower. With due consideration for all the intrinsic limits of such system, it represents, however, the optimum solution and a good compromise between quality/price in all those cases where there is limited space available and when the gaseous flow contains a large quantity of solid particles, better if of high specific gravity. The scrubber consists of a series of standard elements, identical to each other, and each able to handle an air flow rate of 2500 m3/h. Hence it is a modular structure which can consists of a variable number of elements, from one up to twenty venturis (or more).