Filtering

One of the technologies designed and offered by Labiotest for the abatement of odors and contaminants are filtering systems. These systems can be used only and exclusively for conveyed emissions and exist in two versions: dry and wet filtering.

Dry filtering

Odors abatement takes place through chemical-physical absorption on a multi-layer filtering bed with multiple reagents, sized considering the type of effluent to be treated.

The proper sizing of the filtering system allows for the optimization of abatement efficiency and the lengthening of filtering materials average life, in order to skip maintenance for a minimum of 12 months.

The choice of the absorbing materials and specific pre-impregnations according to classes and compounds families also allow performing a selective abatement of odorous substances, to reach olfactometric efficiency rates of 99%.

Main functions of dry filtering equipment:

• High olfactometric abatement efficiencies;
• Absence of maintenance, except for the replacement of the filtering bed;
• Absence of components subject to wear or breakdowns;
• No need of water supplies or unloading;
• Electric energy consumption limited to the only ventilation section applicable to almost all industrial types of odoriferous emissions;
• Possibility of complete integration with all kinds of treatments;
• Possibility of having the system tailor-made.

Wet filtering

Wet abatement systems are designed to remove pollutants with the help of a washing solution.

The solvent used is water. However, it is possible to select specific reagents depending on mixing and solution capacities of the species present in the treated effluent.

Nevertheless, within the field of odor abatement, it may be necessary to consider some additional devices:

• series of towers having different washing solutions;
• wet Venturi sections;
• injections of absorbing solids in containment reservoirs;
• introduction of additional filtering sections;
• introduction of additional abatement processes.