Particulate Control
Wet Electrostatic Precipitator
Envanio’s wet electrostatic precipitator is an advanced gas cleaning system designed to remove fine particulate matter, submicron dust, acid mists, aerosols, and condensed volatile compounds from aggressive process exhaust. Operating at high energy intensities with optimized discharge electrodes, it ensures maximum pollution control performance while dramatically reducing maintenance requirements, eliminating carryover during wash cycles, and protecting downstream equipment.
High Removal Efficiency
Envanio's WESP removes up to 98% of particulate in a single stage depending on gas stream characteristics. Additional modules installed in series allow removal efficiency up to 99.9%.
Self-Cleaning Rugged Design
Envanio’s rugged, self-cleaning design ensures reliable, low-cost operation while minimizing maintenance, making it ideal for processes with tar-laden gas streams.
Protect Downstream Equipment
Improved particulate removal enhances protection of downstream equipment, such as thermal oxidizers (RTOs), improving operational efficiency and extending media service life.
Efficient Particulate Control of a Wide Range of Pollutants
| Process | Particulate Control |
|---|---|
| Removal Efficiency | up to 98% in a single stage; up to 99.9% with multi-stage configuration |
| Gas Saturation | Direct integration with inlet gas quencher or wet scrubber to achieve adiabatic dew point |
| Construction Materials | High-grade corrosion-resistant alloys for acidic process gases |
| Typical Target Pollutants | Fine, submicron particulates, heavy metal fumes, sulfuric and hydrochloric acid mists, condensed volatile compounds including tars, aerosols including water droplets in odorous gas streams |
Each system is custom-designed based on your requirements and processes.
The Design of Our Wet Electrostatic Precipitators
Our solution standardized pre-assembled modules significantly reduce installation time installation and help to optimize shipping costs. Specially engineered emitting and collecting electrodes support higher operating voltages and optimal corona generation. Designed for sticky or tar-laden gas streams, the system features a robust self-cleaning concept that minimizes downtime. High-alloy materials provide superior corrosion resistance in harsh, acid-laden industrial environments.
Typical Applications for Wet Electrostatic Precipitators
Envanio designs and manufactures systems for particulate control to the specific requirements of your industry’s production processes. Thanks to their rugged design and high removal efficiencies, our wet electrostatic precipitators are a particularly suitable and cost-effective solution for the following applications and industries.
The wet electrostatic precipitator removes sub-micron wood dust, condensable resins, and pitch upstream of RTOs.
360° Service for Your Air Pollution Control System
Take advantage of our 360° support for air pollution control systems from Envanio or third-party manufacturers. Our service teams support your plant throughout the entire equipment lifecycle, providing routine inspections, preventative maintenance, system audits, efficiency retrofits, repairs, and genuine replacement parts.
FAQ
By removing sticky tars, condensables, and particulate upstream, it prevents ceramic media plugging in the thermal oxidizers (RTOs) and extends their operating life.
More Ways to Treat Exhaust Air
To deliver solutions tailored to your specific requirements and varying operating conditions, Envanio offers a wide range of standard and custom-engineered air pollution control systems based on thermal oxidation.
Regenerative Thermal Oxidation
Regenerative thermal oxidation (RTO) is a highly efficient process that cleans industrial exhaust by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. By using internal ceramic heat exchange media, the system traps and recycles its own heat, making the entire purification process incredibly energy efficient.
Electric Regenerative Thermal Oxidation
Envanio's electrically heated regenerative thermal oxidizer (eRTO) combines high VOC destruction efficiency, operational reliability, and exceptional energy performance. By using electric heating elements instead of gas-fired burners, the system avoids combustion-related byproducts and significantly reduces NOₓ emissions. The result is a cleaner, more sustainable solution for industrial air pollution control.
Recuperative Thermal Oxidation
Recuperative thermal oxidation is a highly efficient process that cleans industrial exhaust air by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. The system is also well suited for processes where particulate matter and aerosols are generated. An integrated metallic shell-and-tube heat exchanger enables efficient primary heat recovery.
Direct Fired Thermal Oxidation
Direct fired thermal oxidation is a highly efficient process that cleans industrial exhaust by destroying hazardous air pollutants (VOCs and HAPs) and eliminating unpleasant odors. The system is particularly well-suited when heavily contaminated exhaust streams must be treated reliably with high removal efficiencies, and when complex heat recovery systems are not economically feasible.
VOC Concentration
Envanio’s VOC concentration process uses adsorption to concentrate dilute solvent emissions. For cost-effective air pollution control, adsorption is recommended first to concentrate large exhaust airflows with low pollutant loads. The concentrated exhaust air is then routed to downstream recuperative or regenerative thermal oxidation for highly energy-efficient destruction.
Activated Carbon Adsorption
Envanio’s activated carbon adsorption is based on the physical adsorption process to purify industrial process air of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) from industrial exhaust air, with the option for solvent recovery. In our regenerative systems, both the adsorbent and solvents are recovered for reuse, while in non-regenerative systems, the spent activated carbon is safely disposed of or replaced along with the captured pollutants.
Catalytic Hot Gas Filtration
Envanio’s catalytic hot gas filtration is based on an integrated 3-in-1 process for industrial hot gas and exhaust air purification. Rigid, high-temperature ceramic filter elements enable the simultaneous removal of particulate dust, heavy metals, sulfur oxides (SOx), and nitrogen oxides (NOx) from process exhaust in a single compact system.
Wet Scrubbing
Envanio’s wet scrubbers rely on absorption for the wet separation of inorganic compounds, particulates, mist, and acidic gases. During the regenerative or direct-fired thermal oxidation of halogenated hydrocarbons or sulfur compounds, substances such as hydrogen halides or SOx are generated, which must be scrubbed from the exhaust air in a downstream wet scrubber.
Let's Talk
Please contact us directly to schedule a personal consultation or submit your project details using our contact form to receive a complementary, no-obligation quote.
Matt Konkle
Director Sales America
