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Odor treatment at
pumping stations

Electric, sensor-driven odor treatment that adapts to fluctuating H₂S, VOC and sulfur gas emissions before they become odor complaints.
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96-100%
H₂S removal during peak conditions
5x lower
Peak H₂S outlet 5x lower than biotrickling filter

Odor complaints happen during peaks, not averages

Pumping stations are challenging odor environments. Flow rates, wastewater composition, temperature and pump cycles change throughout the day, causing short H₂S and VOC emission peaks that conventional systems may struggle to absorb.

Measured under real pumping station conditions

During summer operation, H₂S peaks at the pumping station reached more than 10x the daily average. These peak events typically occurred for a few hours per day, making peak-load performance more important than average removal alone.

High removal maintained during H₂S peak loads

The AirShield was tested over three months using 1-minute electrochemical sensor measurements to capture short odor events. During the test period, the maximum observed H₂S input concentration was 200 ppm. Removal remained 100% below 50 ppm and 96% during peak events.

“I experienced the collaboration with Luper as very pleasant. Communication was clear, and the results were presented transparently."
Sanna Melita
Process Technologist,
Hoogheemraadschap van Delfland

What this means for pumping station operators

With our AirShield, you are able to:
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- Obtain consistent performance during H₂S and VOC odor events
- Prevent odor complaints before they arise
- Reduce breakthrough emissions by 5x compared to lavarock biofilters

Why AirShield for pumping stations?
Biofilter
Carbon filter
AirShield
Works immediately
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Adapts to variable loads
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High humidity
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No chemical dosing
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Scalable/modular
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Want to assess odor peaks at your pumping station?
Request assessment
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FAQ
Which pollutants does the AirShield remove (H₂S, DMS, VOCs)?
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The AirShield is designed to treat toxic and odorous gases at wastewater treatment plants and other industrial facilities. Target gases include sulfur-containing compounds such as H₂S and dimethyl sulfide (DMS), amines, aldehydes, terpenes, aromatics and other odors and (very) volatile organic compounds (VOCs).

A stand-alone unit can effectively treat peak concentrations of up to several hundreds parts per million (e.g. 750 ppm for H₂S). We offer site assessments to confirm that the AirShield is suitable for your specific airflow.
What removal efficiency and outlet concentrations can I expect?
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The AirShield will be configured to suit your site-specific requirements, such as the maximum residual emission and/or required removal rate. In field operations at wastewater treatment plants and pumping stations the AirShield shows removal rates of >99% with residual odor concentration of <75 ouₑ/m³.

We offer assessments to determine the expected performance on your airflow
How is the AirShield’s performance verified?
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The AirShield has built-in sensor slots for (remote) output and status monitoring. We provide data-enabled services such as emission monitoring and reporting, performance optimization and predictive maintenance.

If desired, we offer onsite pilots and demonstrations to validate performance under real operating conditions.
How does the AirShield clean exhaust air?
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The AirShield cleans air based on our patent pending gas-phase advanced oxidation process (GPAO). The goal of our GPAO process is to neutralize toxic and odorous gases, turn these neutralized gases into particles and then remove the particles from the air.

This sequence is completed because particles are easier (and thus more cost effective) to treat than gases.
What is the total cost of ownership (TCO) of the AirShield?
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The TCO depends primarily on treated airflow (m³/h), pollutant load and variability (e.g., H₂S/DMS peaks), operating hours, and the required outlet target. Operating expenses are typically made up of electricity consumption (Wh/m³), planned maintenance and service, and consumables such as filters and sensors.

During a site assessment we provide a TCO estimate for your location, including typical and peak energy use, expected maintenance intervals, and consumables, so you can compare CAPEX and OPEX against alternatives such as activated carbon, biofilters, or scrubbers.
How much electricity does the AirShield use?
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Electricity use depends on airflow rate, inlet concentration, temperature and humidity. Typical ranges are 0.5 – 1.5 Wh/m³ for low concentration airflows at up to 5 Wh/m³ for high concentration airflows (incl. fan).

The AirShield minimizes energy consumption by matching operating power to pollutant concentration based on sensor feedback. Using the specifics of your airflow we provide typical and peak energy consumption estimates.
Does the AirShield require (storage of) chemicals?
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No, the AirShield uses electricity and the water and oxygen naturally present in the air to generate reactive species in-situ for oxidation. Any residual reactive species are converted downstream using an integrated catalyst.
What maintenance is required and does it require special staff training?
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The yearly maintenance is designed to be straightforward and can be performed by a trained operator, a local service partner, or our team, depending on your preferences.

Tasks include inspection, checking sensors, and scheduled replacement of consumable components. We can provide service agreements and planned maintenance to ensure reliable performance. If desired the AirShield can be equipped with sensors for predictive maintenance.