Hygienic biofilm monitoring sensor
February 2018, Sensors & Transducers
Bacteria settles among any structure (pipelines, tanks, machinery) in contact with water in a very short time, if appropriate preventative measurements are not applied. The term biofilm refers to the layer of micro-organisms (bacteria, diatoms, fungi, etc) that grows on any surface in contact with water or other liquids. It has been demonstrated that biofilm can grow even in extreme conditions, causing damage that can range from Legionella contamination to microbiologically influenced corrosion (MIC).
The ALVIM real-time online Biofilm Monitoring System is able to detect bacterial settlement during its first phase (down to 1% of surface covered by micro-organisms such as Legionella pneumophila) and, based on these data, manually or automatically adjust and optimise cleaning and biocide treatments to keep biofilm growth under control.
Important advantages of the ALVIM technology include:
• Discriminates between biofilm and other kinds of deposits or fouling (e.g. calcium carbonate, etc.); this is extremely important, since these two different kinds of fouling requires different treatments.
• Has a very high sensitivity, i.e. detects the biofilm initial colonisation phase as soon as the first bacterial spots appear on a surface.
• Early-warning detection of bacterial biofilm growth by measuring the natural electrochemical activity of bacterial biofilm, indicating its real presence and extent at any given moment.
• Optimisation of cleaning treatments.
• Easy to install and operate.
• Virtually maintenance-free probe.
• Real-time, continuous biofilm monitoring.
With hygienic connection to the process, a flat surface in contact with the liquid and high resistance to chemical treatments, this sensor is designed for applications where hygiene is critical.
For more information contact Instek Control, +27 (0)12 998 6326, firstname.lastname@example.org, www.instek.co.za