Anotec Combined Sensory & Analytical Methods

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"Combined Sensory & Analytical Methods to determine, analyse and formulate viable odour control technologies" Presented in Singapore by Victoria Zavras for Anotec Pty Limited - IWA Odour Conference

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Anotec Combined Sensory & Analytical Methods

  1. 1. Session 5B - MeasurementVictoria Zavras – Anotec Pty Limited, AUSTRALIA
  2. 2. Combined Sensory & Analytical Methods toFormulate Develop Determine Viable odour control technologies Presentation by Anotec Pty Limited 2003
  3. 3. Exhaust emissions usually containsignificant amounts of various odorouscomponents.The perceived odour is due to theeffect of all compounds in the mixtureand depends upon the concentrationand odorous qualities of thecomponent compounds. Therefore, it is logical that an odorous gas sample be characterised in two ways.Firstly, in the analytical expression, whereby thecomponents are identified and their concentrations aremeasured
  4. 4. 1. Analytical expression,whereby the components are identified and their concentrations are measured 2. Sensory expression, where the human response to the odorous mix is measured.
  5. 5. GC/MS Analysis reveals the composition ofthe odorous mix but will not be able todetermine the human response.
  6. 6. Olfactometry reveals the human responseto a particular odour mix but cannotaddress its chemistry.
  7. 7. Challenging malodours.1. Masking Agent formulation (generic)2. Anotec 0307 (site specific formulations based on testing)Introducing: Officer Anotec, Officer Masking Badge # 0307 Badge ID Generic Mal Odour
  8. 8. Masking AgentA generic masking agent (perfume) was formulated to be applied in allinstances. There was no variation in the formulation as Anotec were testing the“Broad Spectrum” or “one size fits all” theory of masking agent applications. Inthe following scene Officer Masking has apprehended Mal Odour without athorough investigation. Officer Masking apprehends Mal Odour. Frisks him, but comes up empty handed. Masking lets him go.
  9. 9. Masking AgentA generic masking agent (perfume) was formulated to be applied in allinstances. There was no variation in the formulation as Anotec were testing the“Broad Spectrum” or “one size fits all” theory of masking agent applications. Inthe following scene Officer Masking has apprehended Mal Odour without athorough investigation. Mal Odour is on the run again. He’s getting away with the crime. Besides, he was far too big and And strong compared to Masking.
  10. 10. Anotec 0307All 0307 formulations evaluated were developed as a direct result of the odourtesting conducted. Therefore, a site-specific odour control formula was appliedto the relevant odour source. In the following scene, Officer Anotec is awarethat Mal Odour is on the loose, but he approaches the situation differently byfully utilising the resources available to him. The crime scene is examined. Officer Anotec has engaged The services of a private Detective firm. (Olfactometry)
  11. 11. Anotec 0307 Not only did scientific evidence shows that Mal was directly responsible for the crime, witnesses attested to his extraordinary strength
  12. 12. Anotec 0307Investigations show that Mal Odour is wantedin every state in every country. Positiveidentification is made and Officer Anotec cannow actively pursue and apprehend thecriminal.
  13. 13. Anotec 0307 The sentence is execution
  14. 14. Sampling Emissions from Stack Sampling Site Treatment Samples sent to Laboratories
  15. 15. 200,000180,000 RE (%)160,000 Testing Parameter ODU Initial 152, Raw Odour 450 -140,000 2,63 Raw Odour + Anotec 0307 1 98120,000 189, Raw Odour + Masking Agent 620 -24.38100,000 ODU = Odour Dilution Units (Strength) ODU RE = Removal Efficiency 80,000 60,000 40,000 20,000 0 Raw Odour Raw Odour + Anotec 0307 Raw Odour + Masking Agent Te st ing parame t e rs
  16. 16. RE RE Component RO MA 0307 (MA) (0307) Carbondisulfide 4 3.1 1 18.42 73.68 Cabonylsulfide 142 129.6 12.3 8.73 91.34 Methanol 41,266 39,505 497 4.27 98.80 Ethanol 96,227 93,235 766 3.11 99.20 Acetonitrile 2,050 1985.2 37.3 3.16 98.18 Benzene 62,602 61,599 546 1.60 99.13 Toluene 11,735 11,021 336 6.08 97.14 m,p-xylenes 9,310 9,263 117 0.50 98.74 100,000 90,000 80,000 Carbondisulfide 70,000 Cabonylsulfide 60,000ppb 50,000 Methanol 40,000 Ethanol 30,000 Acetonitrile 20,000 10,000 Benzene 0 Toluene RO MA 0307 m,p-xylenes Testing Parameter
  17. 17. Conclusion:Combined odour measurement techniques showus the “Big Picture”Enables facility operators the freedom tochoose the best available technology whenpresented with more than one optionMasking Agents may be much more suited totemporary and transient odours and are a poorperformer in continuous odour streams.
  18. 18. Site specific odour control formulations based onthe combination of the odour measurementtechniques yield up to 98% removal efficiencywhen compared to masking agent applications.Anotec odour control technologies’ success incommercialising formulations worldwide isdirectly attributable to the combined sensory &analytical measurement techniques presentedto you today.

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