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New spectrophotometric sensor for analyzing turbid liquids: Application for wastewater treatment

Reference number
Coordinator Spec-Imaging AB
Funding from Vinnova SEK 3 256 328
Project duration September 2023 - August 2025
Status Ongoing
Venture The strategic innovation programme Electronic Components and Systems:
Call Electronic components & systems - research and innovation projects 2023

Important results from the project

The project developed and tested a new type of measuring instrument that can analyze water directly in process flows, even when turbid. The technology is based on a patented optical method combined with AI, enabling real-time measurement of parameters such as oxygen demand (COD) without particle filtration. The project resulted in a prototype validated at RecoLab, and also created new collaborations that strengthen the path towards a finished product.

Expected long term effects

In the long term, the project can lead to more resource-efficient processes. By enabling direct measurements in turbid water flows without filtration, the technology can support more sustainable water treatment with reduced energy and chemical use. At the same time, it provides access to reliable new process data that strengthens the competitiveness of Swedish industry in digitalization and smart process management.

Approach and implementation

The project largely followed the planned setup. Spec-Imaging led the work and carried out most of the development, while Lund University contributed research and NSVA provided the test environment and expertise. Some activities took longer than expected, but the collaboration between the partners worked very well and the project was successfully completed with good results.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 30 September 2025

Reference number 2023-00662