Formula Nitro: Bacterial Supplement for Ammonia Reduction in WWTPs

Municipal wastewater often contains nitrogen, typically in the form of ammonia, which is not removed through secondary treatment. Ammonia in wastewater can raise BOD levels or promote excessive algae growth if discharged into lakes, rivers, or estuaries. Additionally, ammonia in effluent may be toxic to aquatic life.

Further biological treatment beyond secondary treatment involves nitrifying bacteria converting ammonia into non-toxic nitrate through nitrification, which reduces the ammonia toxicity in effluent.

However, excessive nitrate in effluent can also be problematic, as it serves as a nutrient that encourages algae overgrowth. The denitrification process addresses this by converting nitrate into nitrogen gas, which is safely released into the atmosphere without environmental harm.

Formula Nitro enhances the natural bacterial population in wastewater, boosting the removal of ammonia, nitrite, and nitrate for improved water quality.

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Formula Nitro Features


  • Industrial strength

  • Liquid bacteria formulation

  • Thrives in environments with no “free” or dissolved oxygen

  • Environmentally friendly

  • Available in: 1-gallon jug (Product# 132825), 5-gallon pail (Product# 132825), and 55-gallon drum (Product# 1328255)

Formula Nitro Benefits


  • Reduces ammonia levels in wastewater

  • Decreases nitrate levels in wastewater

  • Enhances nitrite removal in wastewater

  • Boosts existing bacterial populations in wastewater

Using Formula Nitro


Dosing Schedule:
Flow Rate Initial Dosage Maintenance**
Up to 5,000 GPD ½ quart per day for 2 days 1 quart per week
Up to 50,000 GPD 2 quarts* 2 quarts per week
Up to 250,000 GPD 1 gallon* 1 quart per day
Up to 500,00 GPD 1 ½ gallons* 1 quart per day
Up to 1 MGD 2 ½ gallons* 1 quart per day
Up to 5 MGD 2 gallons per MGD* 1 quart per day
Up to 12 MGD 2 gallons per MGD* 2 quarts per MGD per day
Up to 100 MGDD 2 gallons per MGD* 1 gallon per MGD per day
* Spread this initial dosage out over the course of 10 days.

* * Add as regularly as possible. If it is required to miss one day, add that day’s product with the next dosage.

Dosage rate will vary with flow rates, retention times and system variations.

Do not add to the treatment system at a location where toxic or otherwise adverse pH, dissolved oxygen or temperature conditions may exist at peak levels.

For optimal results the wastewater and treatment system should meet the following conditions:

Optimum Minimum
Influent pH 7.0 5.0
Dissolved oxygen, ppm 2.0+ 1.0+
C/N/P ratio 100/10/1 100/5/1
Temperature 30°C (86°F) 10°C (50°F)
Toxic metals, ppm
(E.g., hex., chromium)
0 0
*Apply this amount in one dosage.

**Add as regularly as possible. If a day is missed, add that day’s product with the next dosage.

The rates above are for a typical, well maintained system.

See label and SDS for safety information.

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