PROJECTS
CMS Energy
ELEX Upgrade
New Bern, NC - Southern Environmental, Inc. upgraded the first two (2) fields of the existing three (3) field electrostatic precipitators utilizing its SEI/ELEX rigid discharge electrodes (RDEs). The first mechanical field was sectionalized into two (2) electrical fields and equipped with RDEs featuring opposed emitter tabs to provide the current necessary to overcome space charge. The second field received RDEs with staggered emitter tabs and a new Switch Mode Power Supply to provide the necessary voltage for efficient collection.
graphic packaging
Electrostatic Precipitator Performance Upgrade
Augusta, GA - SEI installed its ELEX rigid discharge electrodes in the existing high voltage frames. The narrow profile of the ELEX electrode allowed this to be accomplished while maintaining the existing CE spacing of 9” in the first field and 12” in the second and third fields. A physical model study ensured proper flow characteristics throughout the electrostatic precipitator and, coupled with damper replacement, achieved significant system pressure loss reduction.
Aemerge Redpak
DSI + Pulse Jet Baghouse
Hesperia, CA - Aemerge Redpak required an APC system for their Hesperia Medical Waste Processing Facility in California. The baghouse system was to remove hydrochloric acid gas (HCl) and particulate matter from the exhaust gas. As the project progressed, SEI was asked to provide solutions for the capture and routing of combustion gas streams from multiple sources to a common stack. Considerations also included explosion venting, emergency high temperature purge, bare dampers and a CEM system.
Kapstone(WestrocK)
outlet RB duct exhaust system
Longview, WA - SEI abandoned the old duct in place, redesigning the exit configuration from the electrostatic precipitator to exhaust through an abandoned scrubber stack. The reroute required a new fan which was placed at grade to eliminate vibration challenges that were present with the existing fan. In addition to the duct project, SEI retrofitted its proprietary ELEX two-piece electrodes into the electrostatic precipitator in order to improve long-term performance of the ESP by replacing the existing pipe and spike discharge electrodes.
Kapstone was acquired by Westrock in 2018.
Santee Cooper Phase 1
ccr / elg compliance Retrofit
Pineville, SC - Santee Cooper selected SEI to construct the first phase of the Cross Station CCR and ELG compliance program in September 2016. The project required extensive mechanical construction and modifications of several critical plant systems. These systems include the Flue Gas Desulfurization System (Mist Eliminators, Bleed System, Limestone Slurry System), Ash Silo Purging System, Flue Gas Duct Redirection and Flue Gas Turning Vane installation.
santee cooper Phase 2
CCR / ELG compliance RETROFIT
Pineville, SC - In Phase 2 of this project SEI was to perform the installation of CCR and ELG equipment consisting of an under boiler Bottom Ash System, remote conveyor systems, fifty thousand feet of pipe, pipe racks, structure, Waste Water Treatment (WWT) plant and associated electrical systems.
longview power
baghouse expansion
Maidsville, WV - SEI’s solution was to add six (6) new baghouse compartments in parallel with the existing twelve (12) compartments. In addition to the new baghouse compartments, SEI was contracted to replace all of the existing bags and cages. Construction of the new compartments could be performed with the unit operating, with only a tie-in outage required. The existing bags and cages would be replaced during this outage.
Weyerhaeuser (IP)
new electrostatic Precipitator, fan duct
Columbus, MS - Southern Environmental, Inc. designed, built and installed a new electrostatic precipitator complete with new ductwork. Various options of total capital cost, pressure drop, and ash drop-out potential where presented to Weyerhaeuser in order for them to choose a design to best fit their operational objectives and cost.
Now owned by International Paper.
Michigan Sugar
new wet ESP system
Sebewaing, MI - Southern Environmental, Inc. (SEI) designed an up-flow configured Wet ESP system consisting of two independently energized chambers in one module, with a single electrical field in the direction of gas flow. All metal parts touching the gas stream were constructed with 2205 stainless steel. The new Wet ESP design utilized the SEI patented membrane technology which minimized weight, cost and water consumption.
Duke Gibson Station
Electrostatic precipitator Upgrade, Limited Workspace
Owensville, IN - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction and start-up services to rebuild the electrostatic precipitators for Units 3, 4, and 5. All three units were outfitted with new internal components bringing them into compliance. Each unit was designed based on its scope which varied slightly.
Ameren Energy
new and upgrade electrostatic precipitators
Labadie, MO - Southern Environmental, Inc. designed and supplied a system that included retiring four electrostatic precipitators, upgrading two electrostatic precipitators with Switch Mode Power Supplies, and adding two new four chamber precipitators that utilized SEI’s S3 Synergy design.
Tampa Electric
Electrostatic Precipitator upgrade
Tampa, FL - SEI provided a design, supply and install solution to upgrade the first two of a five fields in a dual chamber electrostatic precipitator system. The upgraded fields included SEI’s S3 – Synergy Design plus new electromagnetic rappers, access doors and key interlock system. Maintenance services were applied to fields three, four and five which included a major overhaul of the tumbling hammer system.
Georgia Pacific
Model Study, CFD, S3 ELEX Upgrade
Corrigan, TX - SEI provided detail engineering, material supply, fabrication, technical support, construction, physical flow model study, ash conveying system and roof system for a one chamber, two mechanical field electrostatic precipitator. SEI designed and provided the rapper controller, PLC and PCAMS communication controls.
Boise Cascade
S3 ESP, ELEX
Oakdale, LA - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction, start up services and physical model study, inlet flange to stack, conveyor systems, structure and foundation. The electrostatic precipitator is a single chamber, three mechanical field (in direction of gas flow) precipitator.
Hoosier Energy
S3 ESP, ELEX, SCR Catalyst Replacement, Duct
Sullivan, IN - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction and start-up services to retrofit the electrostatic precipitators for Units #1 and #2. The first unit was installed in the Spring of 2012. The second unit was installed during the Spring 2013 outage. Each unit was designed and built from the hopper support steel up including new hoppers, structural modifications, casing, internals, roof and power equipment. SEI’s S3 technology was utilized to achieve increased collection efficiency. In addition to the electrostatic precipitator retrofit work, SEI also performed several SCR catalyst layer replacements, ductwork change out and an ID fan rotor replacement.
Westar
ELEX, New Electrostatic precipitator
St. Marys, KS - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction and start-up services for this new electrostatic precipitator. SEI/ELEX rigid discharge electrodes and High Frequency Switch-Mode Power Supplies were utilized to achieve increased collection efficiency within the same footprint. In addition to the rebuilds, SEI also performed several structural studies for Westar, as well as designed and installed the proper reinforcement needed to accommodate the higher draft system pressures requested.
Canfor Pulp
Power Boiler, S3, ELEX
Prince George, BC, Canada - SEI provided detailed engineering, material supply, fabrication, construction management and 1/12 physical model study, inlet flange to stack, and slide plates to weather enclosure. The electrostatic precipitator is a single chamber, 3 mechanical fields and six electrical fields in direction of gas flow.
Canfor Pulp
Recovery Boiler, ELEX, Model Study
Prince George, BC, Canada - SEI provided detailed engineering, material supply, fabrication, construction management and 1/12 physical model study, inlet flange to outlet flange, conveyor systems, slide plates to weather enclosure. The electrostatic precipitator is a two chamber, five mechanical field (in direction of gas flow) recovery precipitator. SEI provided a climate controlled building at the cold roof level that contains rapper controllers, PLCs, MCC equipment, PCAMS communication and drag scraper controls.
Climax Molybdenum
Membrane Wet ESP
Fort Madison, IA - Southern Environmental, Inc., provided detail design engineering, material supply, fabrication, construction supervision, and start-up services for two FRP casing upflow Membrane Wet ESPs. The units are in series and are collecting primarily Sulfuric Acid mist.
Chevron Products
FCCU ESP, Model Study, Fabrication, ELEX
Salt Lake City, UT - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction, start up services and 1/10th scale physical model study for a new FCCU electrostatic precipitator, including new inlet and outlet duct work to connect the electrostatic precipitator to the existing inlet and stack. The discharge electrodes used were SEI’s patented SEI/ELEX RS Rigid Discharge Electrodes (RDE). Additionally a pre-fabricated Precipitator MCC Building was supplied with the housed equipment pre-installed. The electrostatic precipitator consisted of a single casing with six (6) mechanical fields in the direction of gas flow and three (3) hoppers
Dupont Washington Works
Baghouse, Silo,
Washington, WV - With the coming demands of the Boiler MACT requirements, and the baghouses showing their age, DuPont decided to implement a major revision and upgrade of the entire power house air pollution control system. Two of the existing baghouses were retained, but one was ducted to a different (previously uncontrolled) boiler, two baghouses were replaced, and a new baghouse was added to replace the re-ducted system. All systems included individual lime injection systems.
Duke Marshall
Model Study, Fabrication, ESP
Sherrills Ford, NC - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction management, a 1/12 scale physical model study, electrical wiring, foundation, field construction, insulation and cladding, painting and start-up services for the utility's Unit #3 & Unit #4 Electrostatic Precipitator Project Replacement.
The new precipitator is upstream of a new FGD. The unique construction approach allowed for the addition of a future SCR to be located upstream of the electrostatic precipitator and reduced projected outage time by 50%.
Duke Cliffside
Model Study, Fabrication, ESP Rehab, ELEX
Cliffside, NC - SEI provided detailed engineering, material supply, fabrication, construction management, a 1/12 scale physical model study, electrical writing, foundation, field construction, insulation and lagging, painting and start-up services for the Cliffside Unit 5 electrostatic precipitator rebuild. The rehabilitated precipitator is downstream of a new SCR.
Weyerhaeuser
Model Study, Fabrication, ESP Upgrade
Pine Hill, AL - Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction management, a 1/12 scale physical model study, electrical wiring, foundation, field construction, insulation and lagging, and start-up services for the Pine Hill Power Boiler Electrostatic Precipitator Upgrade on Unit 2.
Knauf Insulation
Membrane Wet ESP
Shelbyville, IN - SEI provided detailed design engineering, material supply, construction management, field construction and start-up services for the eight module upflow Membrane Wet ESP. The single field unit employs inlet and outlet poppet damper valves for module isolation. The total project scope included erection of the modules including inlet and outlet plenums and damper valves.
Knauf Insulation
Membrane WESP
Lanett, AL - SEI Provided detail design engineering, material supply, fabrication, construction supervision, field construction and start-up services for a four-module, upflow Membrane Wet ESP.
Willamette Red River
Short Outage, Roll-In Unit
Campti, LA - SEI had an extremely short outage time to install the Recovery boiler dry bottom electrostatic precipitator. Our solution was to construct the new electrostatic precipitator prior to the outage. Then during the extremely short outage period, all that was required was to roll in the completed ESP and perform the final tie-in.
