Nitrogen Fixers – Keeping Ammonia Under Control

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Why Ammonia Is One of the Biggest Problems in Biology

In many biogas plants, ammonia levels rise unnoticed—due to protein-rich substrates, high feed loads, or unfavorable process parameters. The problem: Ammonia inhibits the microorganisms responsible for methane production. The higher the NH₄/NH₃ ratio becomes, the more biological performance declines.

Inhibition of Methanogenesis

High NH₃ levels cause the methane-producing bacteria to die.
Result: less gas, unstable processes, increased VFA.

pH Increase & Biological Instability

Too much nitrogen can shift the pH—a risk factor for foaming, inhibition, and process failures.

Return flows & fermentation residues exacerbate the problem

Return flows continuously increase NH₄ levels, even if the feed rate remains constant.

How Nitrogen Affects Biology

Biogas Plant

When Nitrogen-fixing Plants Are Useful

Nitrogen binders are helpful in any situation where ammonia destabilizes the process or is significantly elevated. They are particularly useful in the following cases:

  • High NH₃/NH₄ levels
  • Foaming problems
  • Increased VFA levels and “biological stress”
  • Nitrogen-rich substrates (poultry manure, food scraps, protein)
  • Return flow load
  • Rapidly changing substrates

Our Solution: ZeoFEX

ZeoFEX is our highly effective nitrogen binder—specially developed to safely reduce ammonia and noticeably relieve the burden on the biological system.

Why Choose SaM-Power for Nitrogen Fixers?

Nitrogen-related issues are among the most common causes of yield losses. SaM-Power analyzes the situation on-site, evaluates NH₄/NH₃, pH, trace element status, and substrate structure—and recommends the appropriate solution.

We offer:

  • Practical analysis
  • clear assessment of your nitrogen situation
  • customized products
  • customized application strategy
  • prompt support in case of problems

We provide you with the service you need

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