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Thursday, November 14 • 9:00am - 9:45am
Session A - Wastewater Treatment Plants – The Unseen Hazards

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You see them and drive past them all the time. Every community has one. Chances are that a close neighbor, one of your friends, or even a member of your family may work in one. When low-pressure sets in, and the wind blows in the right direction, the stench may be horrific. But that smell is only a hint to the unseen hazards that you might encounter when working at a wastewater treatment plant.
In their very design, processes involved in sewage treatment produce and use a number of highly toxic and explosive gases, requiring wastewater monitoring to ensure the safety of both employees and the environment.
There are three main gases to be aware of when designing monitoring systems for wastewater treatment facilities:
Hydrogen Sulfide: A highly toxic gas produced wherever large holding tanks or settling basins are located. Because few of these areas conform to normal square footage guidelines, sensors are located as required near probable H2S sources.
Methane: Also known as natural gas, methane is an explosive gas (L.E.L 5% volume) produced primarily in the initial stages of decomposition. Because of its low density, methane will accumulate in pockets near the ceiling of enclosed areas such as holding tanks and settling basins.
Oxygen: Because of the high number of chemical and organic processes occurring in any wastewater treatment plant, adequate levels of oxygen must be maintained to ensure worker safety. Oxygen sensors should be located in enclosed areas, wherever oxygen levels may be in question.
Purifying Chemicals: Chemicals such as ammonia ozone and chlorine are all used in the decontamination of water, both in waste water and water purification plants.
Elimination of these gas hazards is virtually impossible, so workers and contractors must depend on reliable gas detection equipment to protect them. Although there is not one gas monitor that will protect every worker in every situation, a basic multi-gas monitor is a good place to start.
Unfortunately, protecting workers from the dangers of gas hazards is not as easy as simply handing them a gas detector and sending them out the door. If workers do not use their monitors properly, or do not understand how their monitors work, or do not know how to react to the readings, gas detection devices will not be very effective.
Conclusion:
This paper and presentation will outline the ways to protect workers and those exposed to the Unseen Hazards. The information provided will outline the reliable and effective gas detection monitoring and training required to protect personnel, the facilities and the environment.

Speakers

Thursday November 14, 2019 9:00am - 9:45am
Double Tree by Hilton 16615 109th Avenue North West, Edmonton, Alberta,