Odor control is a big problem for many plants in the summer

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Odor control is a big problem for many plants in the summer. Due to the increase in biological activity, more oxygen is required. Many times there are dead spots in a system or plant, such as corners, primary clarifiers, sludge holding tanks, scum pits, lift stations, etc. The increase in biological activity can deplete any oxygen available. Anoxic or anaerobic activity will then start to increase causing malodors to increase with the gasses generated.

Making sure that your system does not have dead spots, changing flow patterns, wasting more often, or increasing mixing can help. Sometimes additions of chemicals such as sodium nitrate are used where mechanical mixing is not possible. This will chemically prevent the formation of some sulfur compounds and biologically give the bacteria an alternate oxygen source, thus alleviating some of the odor causing problems. Remember bacteria will first go for free oxygen, then nitrates, then sulfates. If there is no oxygen, addition of nitrate is a safe alternative that can help avoid some odor problems.

See our odor control sheet. Different products and programs are available for various applications and situations. Not all areas need the same method of correction.

Summary of Odor Control Chemistries and Application Areas

There are several categories of odor control compounds. There are basically products from Four different families to provide you with a variety of options to solve your odor problems. The table below gives a brief summary of the technologies and products available in the product line.

Technology/Mechanism	Type of Product
Precipitation	(Zinc Chloride plus fragrances) Ferric Sulfate
Odor neutralization	Odor Neutralizer Odor Neutralizer
Biological hydrogen sulfide prevention	Nitrate/Bacteria blend
Biological reduction of sulfur compounds	Bacteria blend with Thiobacillus Bacteria blend with Purple Sulfur bacteria
H2S Scavengers Chemical reduction of sulfur compounds	H2S scavenger that is non-water based.

Each of these products has advantages and disadvantages.

Make sure that when you are trying to solve an odor control problem, you use the best type of solution for your specific application. For more information on this and to see the advantages and disadvantages, check out our odor control section on our website

http://www.environmentalleverage.com/odor%20control.htm

More on odor control

Odor Control Case History

Odor Control Mist Technologies

Odor Control

What is an odor?

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