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Measure Nitrous Oxide Emissions

Unisense Environment and IMD expand their partnership in the Netherlands

We are delighted to announce that from 1 November 2023 IMD will handle the full distribution and service of the Unisense Environment N2O Wastewater System in the Netherlands.

Our co-operation goes back to 2016 as IMD recognized the potential need for measurement of nitrous oxide emissions from wastewater treatment in the Dutch market. Since then, the Netherlands along with Denmark have become frontrunners in the documentation and reduction of emissions from wastewater treatment plants.

“The Netherlands is a key market for us,” says Thomas Rattenborg, CEO at Unisense Environment. “The Dutch wastewater treatment plants have been among the first movers to reduce greenhouse gas emissions, and we look forward to expanding our activities in the Netherlands through a close co-operation with IMD”.

From Service Partner to Distributor

We formalized our partnership with IMD as our authorized Service Partner for the Netherlands in January 2022, and this new agreement is a natural next step in our co-operation. In addition to IMD’s sensor expertise and support for installation and maintenance, our Dutch customers can also consult them for full system quotes.

We look forward to continuing our work with IMD to support the ambitions of Dutch wastewater treatment plants to achieve net zero emissions.

Aquatech in Amsterdam

You can find Unisense Environment at Aquatech from 6-9 November. Stop by the Danish Pavilion (stand no. 07.336A) and say hi to Pernille, Bastian, and Mikkel.

Learn more about IMD at imd-ma.nl.

IMD Unisense Environment

Tech Notes and References

Tech Notes
N2O Sensor
Tech Notes References
N2O sensor matches 91% of measured off-gas emissions

Case Study: Full-scale comparison of N2O emissions determined by liquid sensors and off-gas measurement

Tech Notes References
Direct Effect of Activated Sludge Concentration on N2O Emission and CO2-equivalents at Full-scale

Significant 3-fold increase in IPCC2019 wastewater N2O emission factor supported by Danish studies.

Figur 1_featured_700x400
Tech Notes References
Positioning of the N2O Wastewater Sensor

A case study from Kralingseveer WWTP in the Netherlands explores the influence of sensor placement.

N2O mechanisms
Tech Notes
National N2O Mapping and Reduction of N2O Emission through Advanced Online Control

Based on data from Danish WWTPs through advanced online-control.

Figure 1: Activated Sludge Tank
Tech Notes References
N2O Monitoring Highlights Potential for GHG Emissions Reduction

Learn about the results from N2O monitoring in the activated sludge tanks at Severn Trent’s Spernal sewage treatment plant

Tech Notes
A Tool for Carbon Dosage Control

Monitor the N2O concentration in the liquid and use N2O as a control parameter for carbon dosage in the denitrification process.

N2O Sensor Controls Emissions from Deammonification Processes
Tech Notes References
N2O Sensor Controls Emissions from Deammonification Processes

Learn how the water utility Aquafin controls emissions from deammonification processes using the the N2O Wastewater Sensor

Nitrous Oxide Measurement
Tech Notes
Nitrous Oxide Measurement as Key Step towards Climate-Neutral Wastewater Treatment

Greenhouse gas emissions at wastewater treatment plants are coming into focus as the water industry works to reduce its climate footprint

WWTP-Flensburg_credit-photo-Andreas Große
Identifying N2O at the Flensburg wastewater treatment plant

The investment costs had initially deterred us somewhat. However ...

Tech Notes
Characterizing N2O emissions from WWTPs

A study of three very different WWTPs in Denmark: Bjergmarken (125,000 PE), Holbæk (60,000 PE), and Hvalsø (11,570 PE)

Tech Notes
N2O Emissions from Danish WWTPs – a two year monitoring project

The available data show that the nitrous oxide emission varies in time and between wastewater treatment plants.

Trickling Filters Fig. 1
Tech Notes
Nitrous Oxide Emissions from Trickling Filters

Information regarding N2O emissions from trickling filters is limited, partly caused by the difficulties in capturing off-gases.

Tech Notes
IPCC Greenhouse Gas Emission Factors

Significant 3-fold increase in IPCC2019 wastewater N2O emission factor supported by Danish studies.

N2O Monitoring at Vandcenter Syd bassiner_700x400
N2O Monitoring Puts VCS Denmark at the Technological Forefront

VCS Denmark, one of the largest and oldest water and wastewater companies in Denmark, is actively committed to resource optimization

Frederikshavn Water Utility

Frederikshavn Water Utility contacted Unisense Environment for assistance in determining the actual N2O derived CO2 footprint

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