SUMMARY OF RECENT ODOR CONTROL EXPERIENCE
*Please click on a project to view the project description.
| PROJECT/CLIENT | PLANT SIZE (MGD) | ODOR STUDY | DESIGN | TYPE OF ODOR CONTROL SELECTED OR DESIGNED | YEAR COMPLETE |
|---|---|---|---|---|---|
| Fayetteville, AR West Side WWTP McGoodwin, Williams & Yates |
10 | Design of odor control systems for new wastewater treatment plant | In progress | Designing covers, ductwork and centralized biological odor control systems for new plant. | 2004 |
| Old Henry Pump Station & Force Main Odor Control Sabak, Wilson & Lingo Inc. |
6.3 | Design assistance and review for odor control system for new pump station and force main | In progress | 1,500 cfm carbon adsorber for wet wells, chemical injection system for force main, carbon inserts for air release valve manholes | 2004 |
| Port St. Lucie, FL (Glades WWTF) Arcadis - Reese, Macon & Assoc. |
6 | Odor dispersion modeling for plant in design phase | Not included | Not included | 2003 |
| Fredericksburg, VA Whitman, Requardt and Assoc. |
3.5 | Odor assessment, H2S testing | Next phase | Draft report submitted | 2003 |
| Grand Chute/Menasha, WI WWTP CH2M Hill |
5 | Odor testing, report testing results | Not included | CH2M Hill submitted draft report | 2003 |
| West County Wastewater District Richmond, CA | 8 | Odor evaluation including odor dispersion modeling | Next phase | Draft report submitted | 2003 |
| Village of Mamaroneck, NY Waste Transfer Station | N/A | Odor and VOC testing, odor modeling, community odor surveys, odor control recommendations | Next phase | Draft report submitted | 2003 |
| Town of Ocean City, Maryland - Whitman Requardt and Assoc. | 15 | Treatment plant and Waste Tranfer Station odor testing, H2S testing, odor modeling and evaluation of alternatives | Next phase | Draft report submitted | 2003 |
| Vallejo Sanitation and Flood Control District, California - Carollo Engineers | 15.5 | Testing reduced sulfur compounds and VOCs in secondary process | Not included | Evaluate carbon adsorber or biofilter for the bioroughing tower | 2003 |
| West County WWTP, Louisville, KY - GRW Engineers (design/build) | 22 | Selected custom built biofilter with new synthetic media | In progress | 12,000 cfm biofilter with BacTee polyethylene support structure | 2004 |
| Eastern Avenue Pump Station, Baltimore, Md Whitman Requardt and Assoc. |
140 | Odor testing, H2S testing and odor modeling | Next phase | 2- 12,000 cfm carbon adsorbers for wet well and screens | 2004 |
| Mill Creek WWTP, Cincinnati, Ohio CH2M Hill |
105 | Detailed testing and evaluation of packed bed scrubber under different operating conditions, measure CO2 H2S, pH and ORP | Not included | 10,500 cfm scrubber upgrade and modifications to chemical feed systems | 2002 |
| Orlando, FL Conserv II WPCF City of Orlando, FL | 30 | Odor control master plan | Complete | Project to cover aeration basin channels and GBT's and use biological treatment is under construction. | 2004 |
| Colorado Springs Utility District, Colorado | 30 | Performance testing for reduced sulfur compounds from odor control units | Not included | Tested inlet and outlet of iron sponge and Sulfatreat dry scrubbers | 2002 |
| Massaponax WWTP, Fredericksburg, Virginia H.E. Sargent, Inc. |
15 | Performance testing of carbon adsorber for H2S removal | Not included | Tested Phoenix carbon unit | 2002 |
| Iron Bridge WPCF, Orlando, Florida Boyle Engineers |
25 | Evaluated alternatives to treat air from new flow equalization basins | In progress | Selected to modify existing humidification chamber and biofilter to allow increase in air flow. Biofilter previously designed by WEA | 2003 |
| Downington Regional WPCC, Downington, PA Downington Area Regional Authority (DARA) |
7.5 | Odor testing to determine odor emission rates and odor modeling and prepare a report of findings | Not required | Found low odor levels and no controls recommended at this time | 2002 |
| Morris Forman WWTP, Louisville, KY Metropolitan Sewer District | 105 | Extensive testing of 2-20,000 cfm scrubbers and optimization study | Complete | Modifications to scrubber chemical feed systems, including pumps and controls | 2003 |
| Jeffersontown WWTP, Louisville, KY Metropolitan Sewer District | 15 | Master Plan study for the plant, including odor testing, odor modeling and public meetings | Complete | Design channel covers and selected carbon adsorption and activated sludge diffusion | 2002 |
| West County WWTP, Louisville, KY Metropolitan Sewer District | 25 | Master Plan study for the plant, including odor testing and odor modeling. Public meetings and meetings with Air Pollution Control Board | Complete | Design covers for grit channels and aeration basin channels, ventilation for screening building, and carbon adsorbers, synthetic media biofilter and activated sludge diffusion | 2002 |
| Hilton Head collection system, Hilton Head, SC Hilton Head #1 Public Service District |
5 | Extensive study of collection system and pump stations to identify highest sources of H2S due to severe corrosion problems | Not included | Evaluated chemical feed systems and recommended Bioxide and magnesium hydroxide addition at key pump stations | 2002 |
| Plant No. 1, Orange County, California Orange County Sanitary District |
80 | Set up and performed demonstration project of oxygen ionization at the Grit Dumpster Building in turnkey project | Design of demonstration | Oxygen ionization tested at various conditions including with H2S injection | 2003 |
| Moore WWTP, Moore, Oklahoma US Filter Operating Services |
12 | Reduced sulfur compound testing from sludge holding tank because of many odor complaints. Evaluated alternative treatments. | Complete | Modified existing carbon vessels into a bioscrubber with special media for H2S and RSC treatment | 2002 |
| Columbus collection system, Columbus, Ohio Division of Sewerage and Drainage |
Large sewer system | Identification of source of sewer odors by testing H2S and sewer pressures. Set up large fans to exhaust sewer air and measure pressures | Not included | Recommended biofilters to exhaust air and keep sewers under negative pressure. Treatment with biofilters recommended | 2002 |
| Unity Facility in Helena, Arkansas Unified Environmental Services |
400 tons/day | Sludge from New York City hauled to this facility to produce an ammonium sulfate fertilizer. Performed odor, VOC and RSC testing | Complete | Devised a complete air treatment train for 70,000 cfm of air including venturi, acid scrubber and regenerative thermal oxidizer | on-going |
| Broken Arrow, OK McGoodwin, Williams & Yates |
6 | Odor study, community odor survey, recommended odor control alternatives | Complete | Recommended phased approach with follow-up testing to evaluate effectiveness of first phase, which was chemical feed in collection system. Follow-up testing may be scheduled in 2004. | 2001 |
| Half Moon Bay WWTP, California Sewer Authority Mid Coast Side |
4 | Evaluation of odor sources due to complaints and assessment of current technologies. Proactive approach for future considerations. | Not included | Evaluated 3 stage scrubber and other odor control systems and recommended a course of action to address major concerns | 2001 |
| Rte. 108 Pump Station, Howard County, MD Whitman Requardt and Associates | 6 | Evaluation of hydrogen sulfide generation and emissions in historical town and pilot testing project with Bioxide and oxygen injection | In progress | Evaluated chemical treatment alternatives including Bioxide, hydrogen peroxide, iron salts and pure oxygen injection. Selected oxygen injection with on-site production using pressure swing adsorption and side stream injection | 2001 |
| Conserv II WPCF, Orlando, Florida Brown and Caldwell |
30 | Evaluation of alternatives to treat air from new pump station and equalization basins | Included | Selected 2 stage bioscrubber for EQ tank and single stage bioscrubber and second stage biofilter for pump station wet well | 2003 |
| Town Branch and West Hickman Creek WWTP Lexington Fayette Urban County Government Lexington, Kentucky |
25 and 30 | Compete studies at each plant to identify major odor sources and to evaluate alternatives for treatment | Complete | Designed channel covers, carbon adsorbers, activated sludge diffusion and modified existing scrubbers and oxygen ionization system for BFP room | 2001 |
| Consulting Services for Louisville & Jefferson County Metropolitan Sewer District | Various | Odor consultant to large sewer district | On-going work | Multiple projects completed under on-going consulting services agreement | On-going |
| Consulting Services for City of Orlando, FL | Various | Odor consultant to large sewer district | On-going work | Multiple projects completed under on-going consulting services agreement | On-going |