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Sign upJuly 3, 2024
Waternet
Amsterdam
As part of the ToDrinQ EU project, bNovate Technologies SA and Waternet installed a BactoSense monitoring system in a pilot plant to track microbiological profiles in influent and effluent streams of two slow sand filters with different sand compositions. The trial provides real-time data on microbial development and its role in breaking down harmful bacteria, comparing fine versus coarse sand for water purification efficiency. The data will also inform optimal cleaning cycles and process adjustments, potentially advancing water filtration technologies and promoting more sustainable water management.
BactoSense monitoring enhances filter performance by tracking bacteria removal efficiency in sand filters, optimizing cleaning cycles, and reducing water waste and maintenance costs. It also improves ozone and GAC efficiency by monitoring upstream processes, enabling proactive troubleshooting and adjustments to reduce resource consumption, chemical use, and operational costs.
The actual situation in terms of microbial contamination detection on drinking water plants is very slow and not reliable. First, the actual method takes 2-3 days to show any abnormal situation, time where population will get sick. Secondly, the actual procedure identify only a small percentage of bacteria (1-5%) as not all bacteria are able to growth on a dry nutrient support. The whole procedure requires 50 gr of plastic of lab consumable. The BactoSense device detects automatically in less than 30 min all bacteria in water directly coming from the process via a single sampling tube. When placed at the entry of the plant, the device acts as an early warning system in case of abnormal microbial conditions. When placed in other locations, process optimization can be generated with potential reductions of chlorine, impacting positively tap water acceptance and bottled water consumption (EU major initiative). On a 10 years basis, 1000 kg of plastic consumption and more than 3 to of CO2 can be avoided.
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