A wastewater plant constructed in 2007 processes 600,000-800,000 gallons of water per day from three different food processing facilities. The plant is located near a business and residential area, and when it announced a plan to expand, the odors emanating from the facility presented a public relations issue.
ChemTreat identified two areas of the plant that contributed to the odor issue:
1. A circular, 450,000-gallon, outdoor, open-top, flow equalization tank. An HLDA300 blower unit was installed inside the wastewater treatment building, with 200 feet of two-inch distribution hoses placed around the top perimeter of the tank.
2. Dissolved air flotation (DAF) unit inside the wastewater building. An HLDA100 unit was installed with two-inch distribution hoses located around the DAF perimeter and above the skimmer paddles.
Air-driven/vapor phase odor control systems like HLDA100 and HLDA300 have several advantages:
- No water is needed
- Operate year-round
- No freeze protection needed
- No spray nozzles
On the first day after odor control installation, there was already noticeable improvement. By day 15, the location of the treatment and the air flow were adjusted, causing a further decrease in odor. The odor was not noticeable inside or outside the plant by day 30.
One employee said:
“My clothes no longer have a septic smell requiring me to change before I enter the house. I no longer must shower immediately upon entering the house when I get off work… My car no longer smells like the septic activity in the plant. It smells normal.”
Results are examples only. They are not guaranteed. Actual results may vary.