Slide background Neutralox Odour Control - High efficiency, compact photoionisation alternative
Ideal for both centralised and decentralised removal of wastewater generated odour


Frequently Asked Questions – Neutralox Photoionisation System – Centralised and Decentralised Odour Control

How does the Neutralox Photoionisation system work?

gallery_neutralox_7Photoionisation describes a physical-chemical treatment method for oxidation of odours and other air emissions, originating from waste, sewage and sludge treatment processes.

Photoionisation is essentially based on the application of UV-light and catalysts. The UV-light creates strong oxidizing agents (O-2, OH-, O3 , activated O2 and other free radicals) that begin to oxidize the odor causing compounds.

A downstream catalyst provides a surface, for oxidation of odour compounds.

nestralox diagram

What are the benefits of the Neutralox Photoionisation process?

gallery_neutralox_1Photoionisation is very effective and can achieve odour reduction rates of more than 99%.

The main benefit of the system is essentially in the ease of the process.

Furthermore, photoionisation has no requirements regarding inlet air and odour conditions as temperature and humidity variations in the load do not influence or harm the process. No water or chemicals are required for treatment and no side-streams produced.

Maintenance demand is minimal and limited to exchanging inlet filters, UV-lamps and catalyst material every 1-2 years.

Why is photoionisation the preferred choice compared to alternative odour control systems?

gallery_neutralox_2Many of our customers have installed multiple systems and repeat orders are common. When asked why they install Neutralox systems over alternative processes their answers are usually:

1. The system eliminates virtually all odours and

2. The operation and maintenance demand is negligible.

What is photoionisation used for?

gallery_neutralox_6Neutralox Photoionisation systems are usually used for the elimination odour generated by wastewater and sludge often found on municipal and industrial wastewater treatment plants. We have considerable experience in the treatment of odours from municipal treatment plants as well as in the food industry such as dairies, and abattoirs.

What else Photoionisation can do?

neutralox_gallery_6Besides odour reduction, Neutralox Photoionisation provides extensive air disinfection, too.

Analysis has shown, that Photoionisation reduces the number of coliform forming units (CFU) to below the ambient level – just as an by-effect of odour reduction!


e31cdc_e98388b0d3a64764b4647b79b665526aNeutralox Umwelttechnik GmbH is a German manufacturer of odour control equipment with primarily application in the elimination of odours from wastewater treatment plants.

Bringing to the table more than fifteen years of market experience, Nuetralox offers expertise in providing high quality physical-chemical treatment solutions for odour control. The Neutralox Photoionisation process is highly regarded both in Europe and the United States and the rest of the world for its high treatment efficiency, operational reliability, and low O&M demand.

Neutralox Photoionisation is unique and represents a new generation of odour control technology.

Please select from the links below to lean more about the Neutralox Photoionisation odour control system :

pump station
Neutralox photoionisation plant treating odour from a pump station.
sludge tank
Neutralox photoionisation plant treating odour from a sludge tank at an industrial site.
Photoionisation, Fotooxidation, wwtp
Neutralox photoionisation plant treating odour from an underground industrial wastewater balance tank.
gallery_neutralox_5Neutralox photoionisation plant treating odour at a sewage treatment plant.

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