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Quality Digest


Collo Measures the Quality of Liquid Processes in Real Time

Continuous process monitoring universally suitable for all fluids, from thin to thick.

Published: Tuesday, March 29, 2022 - 12:01

(ColloidTek: Tampere, Finland) -- Collo’s new online measuring technology can detect nearly any change in liquid properties straight from the process in real time. The novel technology has the potential to revolutionize liquid quality control, since it enables continuous process monitoring and is universally suitable for all fluids, from thin to thick.

Collo’s technology is based on RF signals that can penetrate any liquid, as well as machine learning and sophisticated edge computing analysis. It is a simple-to-use solution that adapts to any liquid process automatically and results in an eight-dimensional multiparameter, real-time analysis that makes it possible to adjust the process immediately when there is a quality issue.

“The technology can detect nearly any thinkable change in the liquid properties in real time,” says Matti Järveläinen, CEO and founder of ColloidTek. “The result is a continuous quality control, contrary to the normal, time-consuming quality control process based on blind samples and laboratory analyses.”

Customers worldwide

Collo’s liquid fingerprint technology gives the manufacturing industry an opportunity to ensure that a liquid process behaves consistently from batch to batch. For example, it can monitor fermentation processes widely used in food, cosmetics, and pharmaceutical industries, and many other bioprocesses, to ensure that the delicate microbiological process is progressing as intended.

“The number of scrapped end-products can be minimized if the quality deviations are detected early in the process,” says Mikko Tielinen, head of sales. “Why invest in a new factory if it is possible to radically enhance the production at the current factory just by improving the way the process quality is measured?”

That is one of the reasons why Collo is currently building industrial partnerships worldwide, from Asia to Europe and the United States.

“Since Collo can adapt to almost any fluid, it means that the manufacturing industry can focus its quality assurance on real problems in real time, instead of relying on blind samples that only provide retroactive snapshots of the process,” saysi Järveläinen. “We have customers across the world, and we are currently negotiating with various Fortune 500 companies, which shows that our technology is something extraordinary.”

Protecting ecosystems

Fast response to liquid quality changes can be critical in other applications as well. Collo recently conducted a study to find out how unsupervised machine learning could be used to detect abnormal qualities in sewage waste. The study was conducted with the City of Oulu waterworks in Northern Finland.

“Water treatment is important worldwide, and with our technology it is possible to supervise the quality of both tap water and sewage in real time,” says Järveläinen. “The problem with sewage is that if harmful chemicals pass through undetected, it can be a threat for both the water treatment process and the environment.”

In the study, Collo collected data from the sewage well for a couple of weeks and then compressed the information into a couple of models showing how the process should look when it was working well. After that, the analyzer monitored the sewage quality according to these models.

“With the aid of machine learning, our system was able to pinpoint the liquid quality deviations in the process,” says Järveläinen. “The study showed that our analyzer could be used on a large scale to monitor industrial wastewater streams for early detection of anomalies like chemical spillage, product losses, or other abnormal behavior.”

About ColloidTek

ColloidTek, or Collo, was founded in 2017 after extensive scientific research in measurement technology at Tampere University by its founders and key personnel. Collo develops and commercializes its technology for various industries, helping customers understand and enhance their liquid processes. Its customers are well-known industrial companies such as Fonterra, Siemens Energy, SSAB, UPM, ABB, Danone, Evonik, LKAB, and Kemira.


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For 40 years Quality Digest has been the go-to source for all things quality. Our newsletter, Quality Digest, shares expert commentary and relevant industry resources to assist our readers in their quest for continuous improvement. Our website includes every column and article from the newsletter since May 2009 as well as back issues of Quality Digest magazine to August 1995. We are committed to promoting a view wherein quality is not a niche, but an integral part of every phase of manufacturing and services.