SANITARY WASTEWATER COLLECTION SYSTEM TREATMENT PLANT ODOURS ULTRAVIOLET UV BASED ODOUR CONTROL TECHNOLOGY INSTALLATION

1. SANITARY WASTEWATER COLLECTION SYSTEM & TREATMENT PLANT ODOURSULTRAVIOLET (UV) BASED ODOUR CONTROL TECHNOLOGYINSTALLATIONS & PERFORMANCES Presented by: Bernie Lambert, Vice President of Sol-Air Systems Inc. (250) 763-7034 Tom Spenceley, President of Corr Science Inc. (403) 204-2096 Presented for the: 19th Annual GPAC Operations & Maintenance Conference and Trade Show

2. PRESENTATION OUTLINE Introduction Odour Control Technology Ultraviolet Based Odour Control Technology Sol-Air Systems Installations & Investigations Findings

3. Anaerobic or septic sanitary wastewater emits unpleasant odours – caused by hydrogen sulphide (H2S) , and other more complex, volatile reduced sulphur and nitrogen compounds such as mercaptans and amines. H2S is a toxic, flammable and corrosive gas. Septic wastewater odour produces a poor working environment Odour nuisance can quickly lead to public negative response INTRODUCTION…

4. …INTRODUCTION

5. ODOUR CONTROL TECHNOLOGY Two main categories:

6. ODOUR CONTROL TECHNOLOGY Ultraviolet (UV) based technology ? Gas Phase Control Method

7. SOL -AIR UV ODOUR CONTROL TECHNOLOGY The UV wavelength frequency of the Sol-Air UV lamps can destruct a wide range of odourous compounds, such as Hydrogen Sulphide (H2S) and Mercaptans.

8. SOL -AIR UV ODOUR CONTROL TECHNOLOGY UV Radiation catalyses the breaking of ambient oxygen and water vapour molecules into O+ and OH- radicals. These free radicals oxidize the odourous contaminants in the air. This reaction results in a sequential and instantaneous gas breakdown of the contaminants with minimal by-products, such as elemental sulfur, CO2, water vapour, molecular oxygen and trace ozone.

9. SOL -AIR UV ODOUR CONTROL TECHNOLOGY

10. INSTALLATIONS

11. INSTALLATIONS

12. INVESTIGATIONS Methodology: Contacting and interviewing the personnel responsible for the selection and ‘hands on’ operation and maintenance of the existing Sol-Air Systems.

13. TOWNSITE OF FIELD TERTIARY MBR WWTP APPLICATION: Odours from covered MBR/Activated Sludge process Odours from the Headworks / Screening room These foul odours are all collected in ducts and exhausted into a small sealed odour control room. The Sol-Air equipment is located in this odour control room, where the foul odours are treated by the  Sol-Air UV technology. The treated, decontaminated air is then exhausted through a gravity damper to the outside environment.

14. CITY OF VERNON WW COLLECTION SYSTEM and WWTP APPLICATION: To provide treatment for various areas of the WWTP producing strong odours and H2S emissions; headworks, covered primary clarifiers, solids handling facilities etc.

15. CRD NORTH SAANICH PENNINSULA WWTP APPLICATION: Pretreatment of foul air from all sources of strong odours and H2S emissions in the WWTP; Headworks; Primary Clarifiers; Solids Handling etc. Sol-Air equipment treated air being ducted to an Activated Carbon Odour Control / Scrubber System The Sol-Air equipment has increased the Activated Carbon Media life by a factor of 4 Media cost prior to introducing the Sol-Air system were reported to be unsustainable

16. CITY OF KAMLOOPS WW COLLECTION SYSTEM APPLICATION: Treatment of the foul air in a large submersible lift station wet well on the collection system. The station is close to a condo development whose residents were seriously impacted by the foul odors and H2S emissions from the station, prior to the introduction of the Sol-Air treatment.

17. NORTH JUAREZ WWTP ODOUR CONTROL PROJECT, MEXICO Hydrogen Sulphide Emission Control by: APPLIED ENVIRONMENTAL SERVICES INC. El Paso, Texas APPLICATION: Treatment of various sources of foul air and H2S emissions from within the WWTP; Archimedes influent screw pumps; channels; headworks; primary clarifiers etc.

18. FINDINGS All existing installations reported that: Sol-Air equipment was effective in treating the foul air and H2S gas emissions Sol-Air units were performing to meet the operator and owner’s requirements, mitigating and successfully addressing the odour complaints from the public received prior to or in the absence of the Sol-Air equipment being in operation. Effectiveness was rated from “satisfactory” to “very effective”. Total Juarez project was approved and paid for by the US Environmental Protection Agency

19. ON SITE TESTING Benchmark test at Vernon WWTF To test the effectiveness of Sol-Air technology to destroy H2S Equipment: C16 unit with 6” ducting RAE systems Qrae+ toxic gas detector with O2 and H2S sensor

20. ON SITE TESTING

21. ON SITE TESTING

22. O&M The O&M labour requirements were characterized as “minimal” at each location listed above. Operation involves turning on the number of UV lamps one requires and setting the speed of the equipment fan to achieve the desired air flow through the UV banks. A Sol-Air unit fitted with an intake filter requires regular cleaning of the filter. The UV lamps need to be kept clean using a soft cloth and a 50/50 alcohol and water solution in a spray bottle. Sol-Air’s proprietary lamps should be changed after 9,000 hours of use or 1 year after lamp installation.

23. TECHNICAL SPECIFICATIONS(SOL-AIR C48XLF)

24. TECHNICAL SPECIFICATIONS(SOL-AIR C48XLF)

25. INSTALLATION EXAMPLES

27. INSTALLATION EXAMPLES

28. INSTALLATION EXAMPLES

29. INSTALLATION EXAMPLES

33. INSTALLATION EXAMPLES

34. INSTALLATION EXAMPLES

35. INSTALLATION EXAMPLES