Water Quality - Bacteria/Tryptophan Monitoring

Chelsea Technologies Group (CTG) has addressed the challenges faced by  laboratory managers, process scientists and engineers who wish to assess real-time levels of bacteria in water systems with the introduction of the following new products. Both systems provide instant measurements of water-borne bacteria avoiding lengthy, potentially costly, delays in obtaining laboratory results.


Breaking News:

Academic Collaboration with the University of West of England
Dr Darren Reynolds, Associate Professor in Bio-Sensing Research at the University of the West of England is a recognised authority in the use of  fluorescence measurements for water quality monitoring, having published widely in this area for over a decade.  "For the past two years we have been collaborating very successfully with Dr Reynold’s group to both evaluate and optimise our UviLux fluorometers for bacteria monitoring and other applications in the water industry," reports Chelsea's Technical Director, Dr John Attridge.

Applications for the BACTI-Station & BACTI-Wader include:

  • Faecal Indicator (FI) monitoring
  • Assessment of bathing & shellfish waters
  • Filter bed management
  • Groundwater quality monitoring
  • Plant loading assessments from river abstractions
  • River pollution surveillance and investigative monitoring
  • Point source pollution surveys
  • Farm run-off detection and tracking
  • Groundwater quality monitoring
  • Combined Sewage Overflow (CSO) event detection
  • Bathing water quality monitoring


In view of our continual improvement, the designs and specifications of our products may vary from those described.


BACTI Station

BACTI-Station: Provides real-time, highly sensitive measurements for assessing bacterial levels


The BACTI-Wader and BACTI-Station systems enable in-line or in situ real-time reporting of Bacteria within both water processing plants and natural water systems.


The monitor detects fluorescent proteins that are inherent within sewage and slurry.  The principle behind the measurement is the excitation of Tryptophan-like fluorescence within UV wavelength band, which is highly sensitive and has been shown to correlate with bacterial contamination. 


These systems can inform on plant loading of bacteria from river abstraction, filter management and contamination within processed water tanks.

 BOD Wader

BACTI-Wader: Provides real-time, highly sensitive measurements for in situ indication of bacteria levels