The Escherichia coli and total coliform parameters are key and essential indicators for determining possible uses and reuse of the water.
RD1620/2007, which sets the legal basis for reusing treated water requires controlling Escherichia coli and depending on its concentration, defines the allowed uses for the water that is regenerated.
In addition, directive 2006/7/CE relative to the management of the quality of bath water classifies the quality of this resource according to several parameters, where the determination of the presence of Escherichia coli is an important factor.
BIOAqua - Online Automatic E Coli & T Coli Analyser is especially designed for determining the total Escherichia coli and coliforms in water, which makes it an optimum tool for water monitoring according to its use.
BIOAqua - Online Automatic E Coli & T Coli Analyser – Operation
The measurement principle is based on DST® (defined substrate technology), with an alternate fluorescence and absorbance detection system.
Defined Substrate Technology BIOAqua - Online Automatic E Coli & T Coli Analyser uses reagent Colilert-18® (*) based on defined substrate technology (DST®) for the detection of total coliforms and Escherichia coli.
The coliforms use the β-galactosidase to metabolise ONPG and generate a yellow colour in the medium.
Escherichia coli, also uses β-glucuronidase to metabolise MUG and generate fluorescence.
The determination of E. coli as well as total coliforms is based on the correlation that exists between the concentration of bacteria and the time when the fluorescence and/or the colour appears.
The sensitivity of the system allows detecting concentrations of 108 NMP after 3 hours.
Disinfection of the System
The independence between samples is assured by an adequate hydraulic and mechanical management of the system, avoiding contamination between the different samples
BIOAqua - Online Automatic E Coli & T Coli Analyser - Specifications
The data may be transmitted to a control centre automatically for analysis and use. Furthermore, BIOAqua - Online Automatic E Coli & T Coli Analyser operates the results and sends alarms to other equipments (ie. BIOAqua Online Auto Sampler, the automatic sampling equipment) or to additional water monitoring networks.
-Fluorimetric detection for Escherichia coli
-Colorimetric detection for total coliforms
-Colilert-18® (*) from IDEXX in liquid form
-Escherichia coli: 1 bacteria in 100 ml
-Total coliforms: 1 bacteria in 100 ml
|Temperature regulation:||±0,1 º C|
|Analysis time:||- from 3 to 18 hours, depending on the concentration|
|Power supply:||- 110 – 230 VAC/50 -60 Hz|
- RS-232 port and RS-485 port
- MOD-BUS or ASCII protocol
- Analogue output 0-10 V/4-20 mA
- Alphanumeric terminal graph in colour
- Data extraction program via PC
|Alarms:||- Two alarms, which may be upgraded to four|
-105 x 70 x 42 cm
(*) Colilert-18 ® is a registered trademark. The reagent liquid form has been developed by our partners, without IDEXX validation.
BIOAquaView, the desktop-based data download application which allows data download, visualization and export in a user-friendly environment. The software allows tracking events such as sampling status or cleanups. BIOAquaView is the perfect complement to your BIO Aqua range of products