Increasing Summer temperatures are more likely to cause community odor complaints outside the sewer plant and in the collection system at lift stations and manholes.
Conventional wisdom says that wastewater and sewer odors increase in the collection system during the summer due in large part to increased volatility and an increase of anaerobic bacterial activity (anaerobic activity is extremely odorous due to reduced sulfides).
Additionally, oxygen is less soluble at higher temperatures which leads to these anaerobic conditions. In wastewater treatment, heat = less soluble oxygen = anaerobic conditions = increases in odor due to reduced sulfides.
What can your Utility, WWTP, or collection system do to avoid Summer increases in hydrogen sulfide odor (and corrosion)?
Answer: prevent hydrogen sulfide formation.
Find out more on the Aulick Approach to hydrogen sulfide prevention and how Nitra-Nox serves as an alternative oxygen source to sulfates by downloading or viewing Aulick’s complete odor control resource here.
Additional Aulick Solutions Designed to Eliminate Odor From Increased Summer Temperatures
Sul-Fight is proven in harsh environments where hydrogen sulfide already exists. It will remove hydrogen sulfide in force mains where the retention time exceeds three to five days.
When Sul-Fight comes in contact with hydrogen sulfide and other sulfurous compounds, the negative ion on the sulfur bonds with one of the positive ions on the Sul-Fight. This reaction produces a non-odorous and non-corrosive sulfonated compound.
The reaction is instantaneous and irreversible at ambient temperatures. Unlike metal ions, the Sul-Fight compound is water soluble and does not precipitate out in lift stations, force mains or gravity sewer lines.
The Jackpot is a stainless steel device designed to remove odor in the form of hydrogen sulfide, mercaptans, and organic odors that emanate from sewer manholes.
The unit utilizes Aulick’s activated-carbon media cartridge designed to fight distinct odor control scenarios and is placed directly into the sewer conveyance via the manhole.
Microorganisms in the filter carbon media remove odorous compounds preventing odor from escaping manhole vents.
The Jackpot is a proven method used to eliminate community odor complaints. Aulick provides municipal references upon request.
The ProFlo Dual Fan VDS is an airborne odor control system used for outdoor areas on perimeter fencing, concrete containment walls, and in a number of municipal and industrial odor control scenarios. The ProFlo uses 2 regenerative blowers and a vapor chamber to distribute vapor charged air throughout a main supply line.
Aulick’s ROX-92 is fed into the main chamber via a metering pump for accurate dosing. The main chamber utilizes temperature and pressure to change liquid into vapor form while ROX-92 absorbs nuisance odors such as hydrogen sulfide, ammonia, and mercaptans making the ProFlo VDS highly effective in outdoor odor control scenarios.
Applications include:
- Municipal lift stations
- WWTPs
- Food processing and kill plants
- Distilleries
- Rendering plants
The ProFlo Dual Fan VDS is available for permanent installation or temporary rental when community odor complaints increase.
