Air scrubber in the meat processing and dairy industry

The meat processing industry often suffers from problems such as odour and sometimes even stench pollution. Slaughterhouses, gelatine factories and rendering plants are well-known examples. Air Solutions Holland assists companies with the neutralization of this kind of odour and stench problems by means of a chemical scrubber. An air scrubber also called washer is a cleaning installation in which the air flow is brought into intensive contact with a washing liquid. The purpose of this type of installation is to let the odour components (often gaseous particles that cannot be separated with a filter) create a chemical reaction and thereby transfer them from the air stream to the washing liquid. Air Solutions scrubbers are therefore often used as an emission limiting technique for a lot of gaseous emissions.

The extent to which gaseous components can be transferred to the liquid phase depends on the solubility of these components in the washing liquid, temperature often also plays an important role. By adding chemicals to the washing liquid, the harmful components are often converted into other substances, which eventually dissolve more easily in the liquid. Adding chemicals that can react with the gases to be absorbed therefore considerably increases the efficiency of the scrubber. In addition to water (wet scrubbers), organic liquids are also used as absorbers to convert or neutralise the gases dissolved in the liquid.

In practice, an air scrubber consists of three parts: a contact surface for air-water exchange, a droplet eliminator and a recirculation tank with pump. In most cases the gaseous impurities react to form a salt, which easily dissolves in water. Because of this salt formation, all Air Solutions scrubbers are made of industrial plastics (HDPE, PP and PVDF). The residual product of an air scrubber is therefore often a salt solution, which is discharged or evaporated for reuse.

Quality marks:

• ISO 9002
• CE
• KIWA
• VLAREM
• DVS welding certification