Application potential of an on-line ATP analyzer for process control
Jansson, Rasmus (2022)
Jansson, Rasmus
2022
Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2022050933565
https://urn.fi/URN:NBN:fi-fe2022050933565
Tiivistelmä
Continuous analysis of the microbiological load in water is still today a scarcely applied concept. Microbiological problems have been present in various scales in the process industry, but in conjunction with circular economy, the reuse of waters without considering the microbiological aspect indirectly contributes to the rise of problematic situations. While taking on to measures of reducing microbial activity, continuous analysis aids monitoring the effects at a high resolution.
ATP measurement is a sensitive method that is based on a chemiluminescent reaction, which can be used to directly determine the level of active microbes in water. The applicability of continuous ATP analysis is studied in this thesis by practical test periods in a municipal water network with low microbial activity, and the raw water system of a power plant with severe microbiological challenges, along with conducting antimicrobial measures. With low ATP concentrations, fluctuations were minimal in the municipal water network considering negligible measurement errors. The waters analyzed at the power plant were in turn at the other extreme, challenging the upper limit of the measurement range. The results provided valuable information and a new understanding of how process dynamics can affect the microbiological status and at which pace or delay.
ATP measurement is a sensitive method that is based on a chemiluminescent reaction, which can be used to directly determine the level of active microbes in water. The applicability of continuous ATP analysis is studied in this thesis by practical test periods in a municipal water network with low microbial activity, and the raw water system of a power plant with severe microbiological challenges, along with conducting antimicrobial measures. With low ATP concentrations, fluctuations were minimal in the municipal water network considering negligible measurement errors. The waters analyzed at the power plant were in turn at the other extreme, challenging the upper limit of the measurement range. The results provided valuable information and a new understanding of how process dynamics can affect the microbiological status and at which pace or delay.
Kokoelmat
- 222 Muu tekniikka [54]