Calcium Nitrate
Nitrate Applications for Hydrogen Sulfide Control
Nitrates offer reliable, long-lasting hydrogen sulfide (H₂S) control in gravity and force mains. They work in two key ways to manage odor:
- Curative Applications: Target existing odors by providing oxygen that transforms dissolved sulfide into sulfate. This process typically requires a 2-3 hour retention time and dosage of 1-3 gallons of calcium nitrate per pound of H₂S.
- Preventative Applications: Prevents odor formation by conditioning the biofilm in the sewer system to use nitrate instead of sulfate, reducing the formation of H₂S. Preventative treatments are effective for retention times up to 3 hours, with typical doses ranging from 2-8 gallons per pound of H₂S.
Each gallon provides 3.5 lbs of nitrate-oxygen, making it a proven solution for both immediate and ongoing odor control needs.
Wastewater collection systems are complex structures with dynamic hydraulics. Consequently, more than one control mechanism is often at work, and several factors should be considered in designing a cost-effective control program.
Our experts have been solving complex wastewater collection system issues for over 25 years. Our Rapid Response program has been extremely successful at effectively and inexpensively remediating odor and corrosion issues in municipal infrastructure.
For more information about how to more efficiently manage odor and corrosion issues, please let us know by filling out the form below.
Contact Us
Contact Us Form
"*" indicates required fields
Additional Resources:
Featured Product
SulFeLox®– Low Hazard Iron Salt
A low hazard and cost effective alternative to traditional iron salts and calcium nitrate for controlling sulfide levels in collection systems.
Related Case Studies
Biosolids Odor Control Via Sodium Chlorite and Calcium Nitrate
In upstate New York, a wastewater treatment facility historically utilized potassium permanganate to control odors at two locations in their biosolids processing operations.
Learn MoreUSP Technologies
5640 Cox Rd.
Glen Allen, VA 23060
Toll-free (800) 851-8527
Phone (804) 404-7696
USP - Canada
3020 Gore Road
London, Ontario N5V 4T7
Toll-free (800) 851-8527
Phone (804) 404-7696
Contact Us
Our sales engineers are ready to help you find the right solution. Fill out the form to connect with your local USP Technologies representative.
"*" indicates required fields