--- title: Wet Electrostatic Precipitator url: "https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/wet-electrostatic-precipitator" date: 2026-09-24 modified: 2026-10-13 --- # Wet Electrostatic Precipitator ![](https://www.envanio.com/fileadmin/_processed_/f/0/csm_Envanio_Rendering_WESP_freigestellt_b64b193be4.svg "Wet Electrostatic Precipitator") 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. [ Request a Consultation ](https://www.envanio.com/us-en/contact-sales-envanio) ![](https://www.envanio.com/fileadmin/04_Icons/SVG/Envanio_ICONS_Abreinigungsgrad.svg "High Removal Efficiency")### 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%. ![](https://www.envanio.com/fileadmin/04_Icons/SVG/Envanio_ICONS_Kompakt_und_Robust.svg "Self-Cleaning Rugged Design")### 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. ![](https://www.envanio.com/fileadmin/04_Icons/SVG/Envanio_ICONS_sichere_Betrieb.svg "Protect Downstream Equipment")### Protect Downstream Equipment Improved particulate removal enhances protection of downstream equipment, such as thermal oxidizers (RTOs), improving operational efficiency and extending media service life. [ Technical Data ](#c819) [ Design ](#c821) [ How It Works ](#c820) [ Typical Applications ](#c824) [ Service ](#c825) [ FAQ ](#c826) [ More Equipement ](#c827) [ Request a Consultation ](https://www.envanio.com/us-en/contact-sales-envanio) ![](https://www.envanio.com/typo3temp/assets/_processed_/f/1/csm_stats-shape_e3a8ac716f.webp) 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. ![](https://www.envanio.com/fileadmin/_processed_/9/2/csm_Envanio_WESP_Part.X_PW_a57f03ceba.webp) 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. [Get Free Consultation](https://www.envanio.com/us-en/contact-sales-envanio) How Our Wet Electrostatic Precipitator Works ---------------------------------------------- 01 Gas Saturation & Pre-Treatment Inlet process gas enters a quencher or scrubber where it is conditioned to its adiabatic dew point and large particulate matter is removed. 02 Gas Flow Distribution Conditioned gas flows into the bottom inlet plenum, where internal flow distributors ensure uniform gas velocity across the collecting tubes. 03 High-Voltage Electrostatic Charging Discharge electrodes mounted on a high-voltage frame impart a strong electrostatic charge to incoming fine particles, aerosols, and acid mists. 04 Collection & Particle Attraction Charged contaminants migrate rapidly toward grounded tube collecting walls under high electrical energy intensity. 05 Off-Line Flushing Intermittent washing sprays interior surfaces to wash collected material down without carryover, maintaining high system efficiency. 06 Clean Gas Discharge Purified gas exits the top exhaust stack into the atmosphere or downstream thermal oxidizers. 01/06 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. ###### Wood Panel & Woodworking The wet electrostatic precipitator removes sub-micron wood dust, condensable resins, and pitch upstream of RTOs. ###### Bioenergy & Waste Incineration The wet electrostatic precipitator captures sub-micron fly ash, heavy metal fumes, and acid gas droplets from waste incinerators. ###### Pulp & Paper The wet electrostatic precipitator captures fine particulate and liquid aerosol carryover. ###### Non-Ferrous Metals & Steel The wet electrostatic precipitator captures sulfuric acid mists (H₂SO₄) from SO₂-rich smelter gas flows. ###### Mineral Processing ###### Petrochemical Industry ###### Food Processing ###### Foundries ###### Electrode Production ###### Calcining ![](https://www.envanio.com/fileadmin/_processed_/e/9/csm_20DB60_1_b6c6d5fb6a.webp) 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. [All Services](https://www.envanio.com/us-en/service/air-pollution-control-and-waste-heat) FAQ ----- ###### How does a wet electrostatic precipitator protect downstream equipment? By removing sticky tars, condensables, and particulate upstream, it prevents ceramic media plugging in the thermal oxidizers (RTOs) and extends their operating life. ###### Can wet electrostatic precipitators handle high-acidity gases? Yes, systems are fabricated using specialized corrosion-resistant alloys engineered for sulfuric acid and halogenated acid streams. 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. [All Products](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products) Show more ![Regenerative Thermal Oxidation](https://www.envanio.com/fileadmin/_processed_/7/9/csm_Envanio_RTO_Oxi.X_RC_bdc694fd9f.webp "Regenerative 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/regenerative-thermal-oxidation) ![Electric Regenerative Thermal Oxidation](https://www.envanio.com/fileadmin/_processed_/c/3/csm_Envanio_RTO_Oxi.X_RV_e42f48a6f8.webp "Electric Regenerative Thermal Oxidation") ### Electric Regenerative Thermal Oxidation Envanio’s electrically heated regenerative thermal oxidation (RTO) efficiently destroys VOCs, HAPs, and odors without burners or an open flame. The flameless single-bed design minimizes NOₓ and CO emissions while delivering outstanding energy efficiency and reliable air pollution control. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/electric-regenerative-thermal-oxidation) ![Recuperative Thermal Oxidation](https://www.envanio.com/fileadmin/_processed_/4/f/csm_Envanio_Recuperative_Oxi.X_TR_0fd07c391d.webp "Recuperative Thermal Oxidation") ### 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/recuperative-thermal-oxidation) ![Direct Fired Thermal Oxidation](https://www.envanio.com/fileadmin/_processed_/1/3/csm_Envanio_Direct_Fired_Oxi.X_DFTO_4987b23f3e.webp "Direct Fired Thermal Oxidation") ### 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/direct-fired-thermal-oxidation) ![VOC Concentration](https://www.envanio.com/fileadmin/_processed_/a/e/csm_Envanio_VOC_Concentration_Sorpt.X_CD_2a5623fd29.webp "VOC Concentration") ### 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/voc-concentration) ![Activated Carbon Adsorption](https://www.envanio.com/fileadmin/_processed_/9/1/csm_Envario_Carbon_Adsorption_Sorpt.X_CA_46395c532c.webp "Activated Carbon Adsorption") ### 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/activated-carbon-adsorption) ![Catalytic Hot Gas Filtration](https://www.envanio.com/fileadmin/_processed_/f/c/csm_Envanio_Hot_Gas_Filtration_CCF_4122b93909.webp "Catalytic Hot Gas Filtration") ### 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/catalytic-hot-gas-filtration) ![Wet Scrubbing](https://www.envanio.com/fileadmin/_processed_/e/8/csm_Envanio_Wet_Scrubbing_Sorpt.X_SW_38f0c6d542.webp "Wet Scrubbing") ### 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. [View Product](https://www.envanio.com/us-en/air-pollution-control-and-heat-recovery/products/product/wet-scrubbing) 01/08 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. ![](https://www.envanio.com/fileadmin/_processed_/7/5/csm_Matt_Konkle_DSC00144_32f8b95640.webp) Matt Konkle Director Sales America [ +1-800-558-5535 ](tel:+1-800-558-5535) [ sales.amer@envanio.com ](#) [ Get in Touch ](https://www.envanio.com/us-en/contact-sales-envanio) ![Matt Konkle](https://www.envanio.com/fileadmin/_processed_/7/5/csm_Matt_Konkle_DSC00144_0eb735db3c.webp "Matt Konkle")