Ethyl mercaptan odors could be smelled 3 miles away from the company’s Propane/ Butane Dosing Unit.

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Airwall barrier was constructed around the perimeter of the dosing unit to contain fugitive odors.

The mercaptan odors were immediately eliminated.

H2S levels from decaying fish reached over 125ppm in dry dock.

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A NanoZyme unit was lowered into the dry dock and reduced concentration to sub 20ppm for safe personnel entry within one day.

San Francisco Wastewater Treatment Plant. The open DAF tanks were emitting odors to a nearby street. Many complaints from pedestrians and staff were received by the facility.

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San Francisco WWTP: view from inside DAF tanks. There are four tanks on each side of a walkway. The length of distribution pipe is over 200 ft.

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Workers and neighbors were complaining of foul odors from this facility.

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Trucks come into the facility and while emptying their waste produce many odors.  A misting system could not be used in this application due to the constant presence of workers and incoming trucks. 

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We created a 15 foot air curtain to solve the problem.

Historical H2S fugitive emissions of 10ppm were already being treated effectively with a NanoZyme Clean H2S elimination system servicing two large settling tanks (primary aeration and secondary clarifier). Our effective H2S treatment system effectively eliminated fugitive mill emissions satisfying both local and national regulatory bodies including residents of the neighboring town of Inverkeithing. 

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The Nanozyme Clean treatment abated the odor problem within a week. Some odor continued to linger, due to some rancid fish oils captured in 1he dry docks hydraulic caisson system, but the company accomplished its water pollution clean-up mission. Carbon nutrient balancing was a complete success and the substrate of decaying fish began immediate bioremediation. Successful inoculation of the fish substrate was evident when the odor diminished. When the nutrient source of decaying protein was exhausted, the microbial formulation, developed for that food source in extreme concentration, starved, died and returned to its constituent components of carbon and water a clean finish for The Firth of Forth. W&WI