Schaule, Gabriela; Moschnitschka, Dania; Schulte, Simone; Tamachkiarow, Adriana; Flemming, Hans-Curt:
Biofilm growth in response to various concentrations of biodegradable material in drinking water.
2007
In: Water Science and Technology, Jg. 55 (2007), Heft 8-9, Biofilm Systems VI, S. 191 - 195
Artikel/Aufsatz in Zeitschrift2007Chemie
Titel:
Biofilm growth in response to various concentrations of biodegradable material in drinking water.
Autor(in):
Schaule, Gabriela; Moschnitschka, Dania; Schulte, Simone; Tamachkiarow, Adriana; Flemming, Hans-CurtLSF
Erscheinungsjahr
2007
Erschienen in:
Titel:
Water Science and Technology
in:
Jg. 55 (2007), Heft 8-9, Biofilm Systems VI, S. 191 - 195
ISSN:

Abstract:

Biol. stability is one of the most important aspects of safe drinking water. It depends crucially on the availability of biodegradable org. carbon (BDOC). Measurement of BDOC is time-consuming and only performed if an increase is suspected. In this study, a fiber optical sensor (FOS) was used to detect changes in BDOC, detected as an increase in biofilm growth. The FOS consists of a sending and a receiving optical fiber, the latter connected to a detector. When material is deposited at the tip of the fiber, an increase of backscattered light is detected. In a system fed with drinking water, the signal was correlated to biofilm growth which was confirmed by independent surface colonisation detn. When 1 and 3 mg L-1 of BDOC resp. was added, the increment of the FOS signal over a period of 1 wk could be distinguished. Interference by planktonic components and humic substances could be excluded. The biofilm on the FOS could be used as a means to detect changes in BDOC in drinking water and the signal has an early warning capacity.