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STAC
Compact Alarm System
THE OVERALL CONTEXT
The protection of water resource is a National & Europe-
an priority for the coming years.
If the permanent pollution of surface water tends to
lower down following the progress of waste water treat-
ment, accidental pollution and bio-terrorism become a
more and more present threat.
Protecting sampling points, setting up restricted areas
and surveying the quality of water dedicated for human
use remains today as a priority.
SECOMAM and I'Ecole des Mines d'Ales designed a Compact Alarm System called STAC dedicated for this survey.
Using an innovative and patented technology, the STAC: :
■ Estimates the Organic Matter (COD, BOD, TOC), the TSS level and measures the nitrate concentration.
■ Checks and detects undesirable substances (Pesticides, aromatic hydrocarbons..)
Example of atrazin detection
Atrazin 1 ppm
Natural water
no jw
1 ppm atrazin
doped natural water
NOj-HOmgi')
Atrazin (lmg.L1)
PRINCIPLE
Most of macro pollutants and mainly Organic Matters, TSS and
Nitrates absorb in a specific way in the UV light spectrum.
By measuring the sample absorbance in the specific area of
the UV spectrum, the STAC records the spectral profile of the
sample, a true numerical picture of the water quality.
SECOMAM
a xylem brand
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