Industrial Hygiene

Bromine (Br₂), Chlorine (Cl₂), Fluorine (F₂), Hydrogen Sulfide (H₂S), Sulfuric Acid (H₂SO₄), Hydrogen Bromide (HBr), Hydrogen Chloride (HCl), Hydrogen Cyanide (HCN), Hydrogen Fluoride (HF), Nitric Acid (HNO₃), Ammonia (NH₃), Mercaptan, Dimethyl Sulfide, Oxides of Nitrogen (NO_x) and Oxides of Sufur (SO_x).

Chemical Process(Chemical Plants, Fertilizer, Food, Pharmaceutical, Pulp and Papers), Metal Works (Foundry, Cleaning, Pickling, Galvanizing and Plating) and  Flue Gas Treatment(Boiler and Incinerator)

This class of pollutants is typically removed using an aqueous solution in a packed scrubber (vertical or horizontal). Depending on the specific contaminant and concentration, additional neutralizing chemicals such as NaOH (sodium hydroxide), KOH (potassium hydroxide), NaOCl (sodium hypochlorite), H₂SO₄ (sulfuric acid), Na₂S (sodium sulfide) and others may be required to aid absorption and create a more desirable by-products. Other scrubbing equipment such as sieve tray towers and eductor venturis can also be used alone or in conjunction with packed scrubbers for special applications requiring product recovery or small exhaust volumes.

BTEX (Benzene, Toluene, Ethylbenzene and Xylene), Formaldehyde, Hexane and Vinyl Chloride

Oil Process (Refineries and Petrochemicals), Paint Spray (Automotive) and Printing

Most volatile organic compounds, or VOCs, are not appreciably soluble in water or reactive with standard aqueous chemical solutions. This class covers a wide range of compounds including Toluene, Styrene, and many chlorinated solvents. Wet scrubbing is not considered an effective means for removal of these compounds and technologies such as thermal oxidation or carbon adsorption are required for effective removal. However, when halogenated compounds are oxidized, the resultant stream contains hydrogen chloride gas that needs to be removed using wet scrubbing technology.  Due to their low water solubility, VOCs can be desorbed or stripped from contaminated liquid solutions. Packed towers are an effective equipment choice for this application.

Bromine (Br₂), Chlorine (Cl₂), Fluorine (F₂), Hydrogen Sulfide (H₂S), Sulfuric Acid (H₂SO₄), Hydrogen Bromide (HBr), Hydrogen Chloride (HCl), Hydrogen Cyanide (HCN), Hydrogen Fluoride (HF), Nitric Acid (HNO₃), Ammonia (NH₃), Mercaptan, Dimethyl Sulfide, Oxides of Nitrogen (NO_x) and Oxides of Sufur (SO_x).

Chemical Process(Chemical Plants, Fertilizer, Food, Pharmaceutical, Pulp and Papers), Metal Works (Foundry, Cleaning, Pickling, Galvanizing and Plating) and  Flue Gas Treatment(Boiler and Incinerator)

Shallow packed bed scrubbers and standalone or integrated mist eliminators modules are typically used for droplet removal. Aerosols cannot be removed using traditional packed scrubbers. Proper equipment selection for this type of application depends on the specific contaminant and exhaust volume and includes fiber-bed mist eliminators, high efficiency aerosol filtration and venturi scrubbers.

High temperature oxidation of hazardous waste vaporizes heavy metals, which then condense on the ash during cooling. High efficiency removal of the finer particles is critical to meet emission limits for the volatile metals( Arsenic, Beryllium, Cadmium, Chromium, Nickel, Lead, Zinc). Also, the dust could be created during classifying operations for precious metals

Flue Gas Treatment(Furnace) and Mining

Venturi scrubbers are typically used for the removal of fine particulate. These self-contained systems boast a small footprint and do not require interconnecting ductwork, making them ideal for operations with limited floor space.