Abstract
A real-time non intrusive microwave sensor system able to monitor the nutrients found in wastewater has been designed, simulated and implemented. These liquids are continuously flowing through a PTFE pipe and the properties of these liquids gradually degraded in time. Microwaves have the ability to give real-time changes in any material permittivity by means of changing the velocity of the signal, attenuating or reflecting it. The primarily measurements show promising results for future sensor developments which lead to a novel system that can be used in wastewater treatment plants.
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