Hydrogen sulfide and Nutriox for corrosion and odor-free operation
Based on experience and documented nitrate solutions
Do you have hydrogen sulfide in your plant, where odor, corrosion or operational problems are starting to affect everyday life? Hydrogen sulfide often occurs in closed systems where oxygen is low, and the consequences quickly become apparent in both installations and the working environment. At Dankalk K/S, we deliver solutions with Nutriox that reduce the risk of odor, corrosion and operational problems developing. As a lime plant, we work with hydrogen sulfide in the environment and in technical plants where stable operation depends on gas formation being kept under control. Nutriox is a nitrate-based solution that is used in both wastewater systems, biogas plants and hydrogen sulfide in chemical production, while ferric chloride may be relevant in plants where hydrogen sulfide must also be chemically bound in the wastewater.
5 benefits of our hydrogen sulfide control
Hydrogen sulfide becomes a problem when it is allowed to develop. Therefore, control is about intervening early and choosing a solution that works stably in your operation.
- Nitrate-based solutions like Nutriox stop the formation at the source
- Experience with hydrogen sulfide in the environment and technical plants
- Documented effect against both odor and corrosion
- Advice on correct dosage adapted to flow and load
- Solutions for wastewater, biogas and hydrogen sulfide in chemical production
When hydrogen sulfide is removed at the source, you avoid damage to pipes, pumps and tanks. It reduces maintenance and provides more stable operation without emergency interventions.
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Hydrogen sulfide in oxygen-deficient systems with risk of corrosion
Hydrogen sulfide is a gas formed when bacteria break down sulfate in oxygen-poor environments. It has the characteristic smell of rotten eggs, but the smell is only part of the problem.
The gas is both toxic and highly corrosive. In plants, this means the breakdown of concrete and metal, while also affecting the working environment. The problem typically occurs in pressure pipes, tanks and other systems where residence time and load create the right conditions.
Nutriox as a preventive solution against hydrogen sulfide
Nutriox works by changing the behavior of the bacteria. Instead of forming hydrogen sulfide, they use nitrate as an alternative oxygen source. Nutriox reduces the formation of hydrogen sulfide at the source, so that odor, corrosion and stress on pipes, tanks and pumps can be kept down. This makes Nutriox relevant where hydrogen sulfide needs to be limited in pressure pipes, tanks and pumping stations before odor and corrosion become operational problems.
In operation, this means that nitrate-based solutions can be used specifically on the sections where residence time, temperature and organic load pose the greatest risk of hydrogen sulfide.
This provides a better opportunity to keep hydrogen sulfide down before gas formation affects installations, odors and the working environment.
Nutriox for pressure lines, tanks and high loads
Nutriox is dosed at critical points such as pressure lines, pumping stations and tanks where long residence times and low oxygen can trigger hydrogen sulfide production. The location should be chosen based on residence times, flow and the points in the system where low oxygen poses the greatest risk of gas formation.
The dosage depends on flow, residence time, organic load, temperature and the specific operating conditions in the plant.
At Dankalk K/S, we help determine the correct dosage so that the solution fits the specific operation. This provides a better basis for dosing Nutriox according to the actual load and avoiding unnecessary consumption.
FAQ – Frequently Asked Questions about Hydrogen Sulfide
What is hydrogen sulfide?
Is hydrogen sulfide toxic?
What does hydrogen sulfide smell like?
How is hydrogen sulfide formed?
Is hydrogen sulfide an element?
No, hydrogen sulfide is a chemical compound consisting of sulfur and hydrogen. It occurs as a gas under normal conditions.
Hydrogen sulfide without corrosion – get a concrete assessment
Hydrogen sulfide quickly becomes an expensive problem if not handled in time. Call +45 33 68 74 00 or write to dankalk@dankalk.dk and get a solution that suits your plant and operation.