|
Semi-wet process
The semi-wet process consists of atomising a reagent (usually lime milk) in the gas stream. The dust and salts resulting from the neutralization reaction and the excess reagent are captured in a fabric filter or an electrostatic precipitator.
This process is suitable when fair gas cleaning performances are required and when fluctuations and the amount of acid gases to be treated are limited.
Medium water consumption, no water discharge, small stack plume.
As with the dry process, the residues must generally undergo additional treatment before being disposed of.
The quality of the atomization in the reactor enables the heart of the process to be improved significantly.
LAB has two technologies :
 special dual fluid spray nozzles and high performance rotary atomizers.
Coke are activated carbon is injected into the atomization tower upstream from the fabric filter, forming a reactive layer which adsorbs dioxins and furans as well as numerous other residual pollutants, in particular certain gaseous heavy metals such as mercury.
|
Activities
Pictures :
