| 10 ppm = 1/1000 of 1% |
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Can smell. Safe for 8 hours exposure. |
| 100 ppm = 1/100 of 1% |
|
Kills smell in 3 to 15 minutes. May sting eyes and throat. |
200 ppm = 2/100 of 1%
|
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Kills smell shortly. Stings eyes and throat.
|
| 500 ppm = 5/100 of 1% |
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Loses sense of reasoning and balance. Respiratory paralysis in 30 to 45 minutes. Needs prompt artificial resuscitation. Will become unconscious quickly (15 minutes). maximum. |
| 700 ppm = 7/100 of 1% |
|
Breathing will stop and death will result if not rescued promptly. Immediate artificial resuscitation is required. |
1,000 ppm = 1/10 of 1%
|
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Immediate unconsciousness. Permanent brain damage may result unless rescued promptly. POSSIBLE DEATH.
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“Your Problem Is …”
Anaerobic bacteria within a wastewater treatment plant must have a food source to survive. Within this environment, the most abundant source of food for anaerobic bacteria is sulfates. When these sulfates are consumed by the anaerobic bacteria, hydrogen sulfide is produced as a byproduct as shown in the diagram below.
The anaerobic bacteria most commonly present in producing hydrogen sulfide are the desulfovibrio desulfican bacteria. This anaerobic bacterium has a very strong affinity for sulfates, creating a favorable environment for the production of H2S.
“ … Our Solution”
Through extended research and development, ACS determined if an alternative food source was made available to the desulfovibrio desulfican bacteria which it had a higher affinity for as compared to sulfates, the production of H2S would be dramatically decreased, if not eliminated all together. After further research and development, ACS discovered substances the desulfovibrio desulfican bacteria had a much higher affinity for compared to sulfates. These substances were then carefully blended to enhance their performance and in turn, the product Nitra-Nox was created. In the wastewater stream, desulfovibrio desulfican bacteria “feed” on the Nitra-Nox instead of the sulfates. By chemically reengineering the food chain of the wastewater stream, the production of hydrogen sulfide is eliminated.
In addition to the elimination of H2S, Nitra-Nox also increases the dissolved oxygen levels within wastewater streams, creating a more aerobic environment. This helps decrease the risk of sewage going septic over longer retention times.
Nitra-Nox: A Leader in the Fight Against Hydrogen Sulfide (H2S)
At Aulick Chemical Solutions, our research and development team is constantly striving to enhance our product line. Recently, this effort has propelled Nitra-Nox to a new level. Originally, Nitra-Nox was developed to eliminate the production of hydrogen sulfide in wastewater streams. For Nitra-Nox to be effective, strategic “feeding” points are located within the sewer system which has little or no H2S present. Due to the rapid expansion of sewer systems into rural areas and the oversized sewer lines being installed for expected growth, locating these strategic “feeding” points has become increasingly difficult. To overcome this obstacle, ACS has combined the chemistry for hydrogen sulfide prevention with the chemistry of hydrogen sulfide encapsulation, creating an improved and more effective Nitra-Nox. The new formula of Nitra-Nox works as follows:
- When feeding Nitra-Nox into wastewater where hydrogen sulfide is present, Nitra-Nox will encapsulate the hydrogen sulfide and prevent it from being expressed.
- Nitra-Nox will prevent future production of hydrogen sulfide by offereing an alternative food source to the desulfovibrio desulfican bacteria.
- The increased dissolved oxygen levels will oxidize the encapsulated hydrogen sulfide to elemental sulfur.
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Hydrogen Sulfide (H2S) is a colorless, toxic, highly flammable gas with a foul, pungent odor similar to that of rotten eggs. Often referred to as “sewer gas,” H2S is a result of the breakdown of organic matter by bacteria, typically in an oxygen deprived environment such as metropolitan sewer system or a wastewater treatment plant. Controlling this hazardous gas is one of the most challenging problems facing the industry today. Not only is H2S a nuisance, it has the potential, even at low concentration levels, to pose extreme safety hazards for plant personnel and detrimental corrosion of plant equipment.
