Decarbonator

Desorb and Remove Chemicals

Series 820 Decarbonator

The HEIL series 820 Decarbonator is specifically designed to efficiently desorb or remove contaminants such as CO2 from the incoming liquid stream from water treatment, process streams, landfill remediation, and the like.

Although desorption, or stripping, is the functional opposite of absorption, or scrubbing, the same essential type of equipment is used. The contaminated water is introduced at the top of a packed column, while fresh air, void of any contamination, is introduced at the bottom of the column. Traveling a torturous route through the packing brings the air and the liquid into intimate gas/liquid contact. As the air and water move through the column in a countercurrent, the contaminant diffuses from the water to the air. The water exiting from the bottom of the column is cleansed of contaminants.

The type of contaminant in the liquid stream, along with the desired removal efficiency will determine the bed depth, packing size, fresh air rate and chemical requirement, if necessary.

Before the contaminated air leaves the scrubber, it passes through a mist eliminator (HEILex EB 4-Bend Mist Eliminator Blades or mesh pad) that removes entrained droplets.

Series 820 Applications

HEIL series 820 Decarbonators are suited for service in a wide variety of applications in industries such as chemical, mining, and water treatment. In addition, the series 820 Decarbonator has been used successfully for the control of CO2 in water treatment projects.

Series 820 Features

Principal features of the Series 820 Decarbonator:

• High Efficiency Proper sizing of the unit
• selection of packing and packing depth
• irrigation rate and chemical feed can result in efficiencies of 99 percent or better
• Standard units contain 10, 15 to 20 feet of packing
• Units are custom designed to the specific requirements of each individual application

Low Initial Cost Pre-engineered standard designs are available in range of 16 GPM to 2,250 GPM.

Low Operating Costs Pressure drops through the decarbonator at conventional gas/liquid ratios used for stripping are 0.15" wc/ft. of packing depth or less.

Versatility The series 820 Decarbonator is designed to handle a wide variety of applications among decarbonating water treatment streams, stripping VOCs, or degasifying contaminated liquids. Units can be staged in series to achieve maximum efficiencies even on the most difficult applications.

Extended service life The Series 820 Decarbonator is designed with maximum corrosion resistance as a primary consideration. The wide selection of corrosion resistant materials feature rigidon FRP (fiber reinforced polymers) as a standard material with a thermoplastic dual laminate (thermoplastic with FRP overlay), though stainless steel and other alloy constructions are available.

Series 820 Equipment Selection

Key factors for selecting the right countercurrent scrubber for a given application are the liquid rates to be decontaminated, type of contaminant(s) present, quantity of contaminant present and the required removal efficiency.

HEIL engineers assist in the selection of a decarbonator, as well as sizing and selection of accessory items, such as feed pumps, fans, and chemical feed systems to make a complete air stripper system. HEIL engineers also provide a specific quotation on the appropriate decarbonator.