A method developed at TZW to characterise and quantify natural organic matter (NOM) could be successfully transferred to a newly developed online sensor and was tested in various applications.
A method developed at TZW to characterise and quantify natural organic matter (NOM) could be successfully transferred to a newly developed online sensor. Using the sensor it is possible to record single fractions of the NOM such as humic substances, biopolymers and chlorophyll. In addition, the temperature, turbidity and spectral attenuation coefficient are recorded at 255 nm. Initial long-term trials with prototypes show that the sensor is stable under practice conditions. However, special care must be taken when cleaning the measuring cuvette. The sensor has an automatic cleaning unit, nevertheless, regular manual cleaning is recommended for the prototypes depending on the raw water situation.
