Chelsea Technologies Group (CTG) has addressed the challenges faced by water process engineers to assess real-time levels of BOD in water systems with the introduction of the following new products. Both systems provide instant measurements of BOD avoiding lengthy, potentially costly, delays in obtaining laboratory results.
Systems to choose from include:
BOD-Station & BOD-Station Pro: Allows water process engineers to assess real-time levels of BOD in water systems. This is achieved by detecting UV Tryptophan fluorescence, which correlates with the standard 5-day Biological Oxygen Demand (BOD) test. BOD-Station comprises a CTG UviLux fluorometer and a Watchkeeper wall mounted data display & logger. CTG’s UviLux fluorometers detect UV fluorescence with industry-leading sensitivity and selectivity and have been optimized for minimal interference from water turbidity.
BOD-Wader & BOD-Wader Pro: Allows water process engineers to assess real-time, in situ levels of BOD in water systems. BOD-Wader comprises a CTG UviLux fluorometer and a Hawk handheld display and logging unit. CTG’s UviLux fluorometers detect UV fluorescence with industry-leading sensitivity and selectivity and have been optimised for minimal interference from water turbidity. Data is displayed on the Hawk’s colour touchscreen and logged internally
Applications for the BOD-Station & BOD-Wader include:
- BOD loading to Waste Water Treatment Works (WWTW)
- Monitoring efficacy of separate processing tanks within WWTWs
- Assessment of WWTW outflow compliance
- Monitoring industrial effluent discharge into surface waters
- River pollution surveillance and investigative monitoring
- Point source pollution surveys
- Farm run-off detection and tracking
- Assessment of bathing & shellfish waters
- Groundwater quality monitoring
- Combined Sewage Overflow (CSO) event detection
- Faecal Indicator (FI) monitoring
What is BOD?
Biochemical Oxygen Demand (BOD) measures the amount of oxygen consumed by microorganisms when decomposing organic matter. BOD also measures the chemical oxidation of inorganic matter (ie the extraction of oxygen from water via chemical reaction).
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 BOD monitoring and other applications in the water industry," reports Chelsea's Technical Director, Dr John Attridge.