Packed bed scrubbers
OMAR scrubbers are wet abatement systems designed for the purification of industrial gases, ensuring the removal of pollutants such as acid gases, bases, volatile organic compounds (VOCs), and particulate matter.
Packed bed scrubbers
OMAR scrubbers are wet abatement systems designed for the purification of industrial gases, ensuring the removal of pollutants such as acid gases, bases, volatile organic compounds (VOCs), and particulate matter.
These systems utilize the contact time between contaminated gas and a washing liquid, capturing and neutralizing harmful substances. OMAR scrubbers employ wet abatement technology, which enables the effective removal of water-soluble substances from industrial gas streams.
The scrubbers are capable of removing water-soluble substances, acid gases and bases, or volatile organic compounds (VOCs), achieving abatement efficiencies exceeding 97%, ensuring compliance with current environmental regulations.
Operating principle
The wet scrubber is one of the oldest and simplest systems for purifying contaminated gas streams. The operating principle is based on conveying contaminated air into a washing chamber, in the presence of packing media, where contact with the reagent liquid enables the neutralization of pollutants.
Depending on the scrubber type, the process may include:
- Pre-abatement system using fixed-throat venturi.
- Filtration stages composed of packing media with high specific surface area.
- Washing system with appropriately sized spray nozzles.
- Drop-stop system for treating entrained droplets.
- Automatic reagent management via pH meter or RX meter.
Downstream of the purification process, by-products such as sludge may be generated, which must be disposed of in compliance with environmental regulations.
Operating principle
The wet scrubber is one of the oldest and simplest systems for purifying contaminated gas streams. The operating principle is based on conveying contaminated air into a washing chamber, in the presence of packing media, where contact with the reagent liquid enables the neutralization of pollutants.
Depending on the scrubber type, the process may include:
- Pre-abatement system using fixed-throat venturi.
- Filtration stages composed of packing media with high specific surface area.
- Washing system with appropriately sized spray nozzles.
- Drop-stop system for treating entrained droplets.
- Automatic reagent management via pH meter or RX meter.
Downstream of the purification process, by-products such as sludge may be generated, which must be disposed of in compliance with environmental regulations.
Technical specifications .
Conditions for proper operation
The abatement efficiency of scrubbers depends on several factors, including:
- Proper design of the air-liquid contact zone.
- Adequate sizing of the washing tower.
- Maintaining a correct air-liquid ratio.
- Constant monitoring of operating parameters.
Maintenance and management
To ensure maximum efficiency over time, it is necessary to perform regular maintenance, including:
-
Filter Saturation Check – Monitoring of pressure drop to identify any clogging.
- Separated Oil Drainage – Inspection and emptying of collection tanks to recover and dispose of the filtered oil, with the possibility of automating the entire process.
Industrial applications
OMAR scrubbers are used in numerous sectors, including:
Foundries – Core-making departments for foundries.
Chemical industry – Treatment of acidic or basic gases.
Food and agri-food industry – Elimination of odors and organic vapors from production processes.
Plastics – Plastic extrusion department, reduction of odorous substances (venturi required).
Waste treatment – Control of odorous emissions and reduction of volatile compounds.
FAQ – Frequently Asked Questions
-
What pollutants can be treated by OMAR scrubbers? OMAR scrubbers remove acid gases, bases, volatile organic compounds (VOCs), and fine particulate matter.
- What is the difference between single-stage and dual-stage scrubbers? The single-stage scrubber is designed to treat a specific type of pollutant, while the double-stage scrubber is ideal for complex emissions containing different types of substances to be removed.
-
What advantages does floating bed technology offer? Floating bed scrubbers guarantee continuous self-cleaning, minimal risk of clogging, and low maintenance.
-
How often does the washing liquid need to be replaced? The frequency depends on the concentration of pollutants, but periodic monitoring is recommended to maintain high performance.
- Can scrubbers be used in corrosive environments? Yes, OMAR scrubbers are manufactured using corrosion-resistant materials such as polypropylene (PP), PVC, and AISI 304/316 stainless steel.
The abatement efficiency of scrubbers depends on several factors, including:
- Proper design of the air-liquid contact zone.
- Adequate sizing of the washing tower.
- Maintaining a correct air-liquid ratio.
- Constant monitoring of operating parameters.
To ensure optimal performance and long operational life, OMAR scrubbers require regular maintenance. The main maintenance activities include:
- Monitoring of operating parameters – Monitoring pressures, flow rates, and gas passage velocities to prevent efficiency losses.
- Monitoring the quality of sludge settled at the bottom of the tank.
- Inspection of pumps and nozzles – Verification of proper operation to ensure uniform distribution of the washing liquid.
- Replacement of packing media (if necessary) – In floating bed systems, inspection and replenishment of hollow spheres in case of clogging.
In case of dry flows, it is advisable to install mechanical filtration systems upstream of the scrubber to prevent clogging of ducts and packing media.
OMAR scrubbers are used in numerous sectors, including:
- Waste treatment – Control of odorous emissions and abatement of volatile compounds.
- Chemical industry – Treatment of acid or basic gases.
- Food and agri-food industry – Elimination of odors and organic vapors from production processes.
- Foundries – Core development departments for foundries.
- Plastics – Plastic extrusion department, abatement of odorous substances (venturi essential).
- What pollutants can be treated by OMAR scrubbers? OMAR scrubbers remove acid gases, bases, volatile organic compounds (VOCs), and fine particulate matter.
- What is the difference between single-stage and dual-stage scrubbers? The single-stage scrubber is designed to treat a specific type of pollutant, while the dual-stage scrubber is ideal for complex emissions with different types of substances to be removed.
- What advantages does floating bed technology offer? Floating bed scrubbers ensure continuous self-cleaning, minimal clogging risks, and low maintenance.
- How often does the washing liquid need to be replaced? The frequency depends on pollutant concentration, but periodic monitoring is recommended to maintain high performance.
- Can scrubbers be used in corrosive environments? Yes, OMAR scrubbers are manufactured with corrosion-resistant materials such as polypropylene (PP), PVC, and AISI 304/316 stainless steel.
Types of Scrubbers
There are several scrubber configurations, including:
Single-stage packed bed scrubber
Solution characterized by a single gas-liquid contact section, designed for processes with stable pollutant composition and constant loads. The simple construction allows direct control of process parameters and essential operational management.
Single-stage packed bed scrubber
Solution characterized by a single gas-liquid contact section, designed for processes with stable pollutant composition and constant loads. The simple construction allows direct control of process parameters and essential operational management.
Dual-stage packed bed scrubber with triple reagent
The vertical dual-stage separated scrubber enables control of emissions containing pollutants of both acidic and basic nature with a moderate dust content. It is thanks to its particular design that the dual-stage scrubber can treat a wide spectrum of pollutants.
Design is always based on the specific customer requirements, i.e., in relation to the system application. The main construction material is polypropylene, as it is a plastic material resistant to corrosion and durable over time.
Dual-stage packed bed scrubber
with triple reagent
The vertical dual-stage separated scrubber enables control of emissions containing pollutants of both acidic and basic nature with a moderate dust content. It is thanks to its particular design that the dual-stage scrubber can treat a wide spectrum of pollutants.
Design is always based on the specific customer requirements, i.e., in relation to the system application. The main construction material is polypropylene, as it is a plastic material resistant to corrosion and durable over time.
Operating principle
The operating principle of dual-stage scrubbers is based on a contaminated flow that passes in countercurrent through a washing liquid (acidic/basic/oxidative) and bases its efficiency on the ratio between the specific surface area of the packing media and the contact time with the reagent liquid.
Operating principle
The operating principle of dual-stage scrubbers is based on a contaminated flow that passes in countercurrent through a washing liquid (acidic/basic/oxidative) and bases its efficiency on the ratio between the specific surface area of the packing media and the contact time with the reagent liquid.
Floating bed packed scrubber
System based on mobile packing that increases the exchange surface area and reduces deposit formation. The dynamic nature of the bed improves liquid distribution and ensures stable performance even in the presence of variable loads.
Floating bed packed scrubber
Self-cleaning bag filters for high-temperature fumes and gases are designed for the purification of hot gases laden with particulate matter, derived from high-temperature industrial processes. Thanks to the heat-resistant structure and the automatic Pulse Jet cleaning system, these filters ensure high filtration efficiency, maintaining operational continuity and reducing emissions to 1 mg/Nm³.
Horizontal packed bed scrubber
Solution developed to manage dimensional constraints and reduce pressure drops, thanks to the horizontal passage of the gas flow. The configuration facilitates accessibility and simplicity of inspection and maintenance.
Horizontal packed bed scrubber
Solution developed to manage dimensional constraints and reduce pressure drops, thanks to the horizontal passage of the gas flow. The configuration facilitates accessibility and simplicity of inspection and maintenance.
Discover other OMAR products.
