Case Study WWTP application-online odor monitoring0 pages

Case Study N°AA3 – Ambient air monitoring – WWP TRS MEDOR odor monitoring – updated: 25.10.15

Case Study
Ambient Air Monitoring Applications

Waste water treatment plants
Air quality control by TRS MEDOR
Online Odor Monitoring
Context & Challenges
Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization
near waste water treatment plant and extension of sewerage network. These aspects induce to an
augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and
toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions.
Odors are very distinct air contaminants as they generate nuisances. The factors playing a role in the determination
of odor annoyance are: odor concentration and intensity, frequency, appreciation, duration, synergy and location.
CHROMATOTEC® proposes an automatic solution to well identify the origin and the level of odors.

Chromatotec® Solutions
TRS MEDOR ppb or ppm for up to 14 compounds
With only one instrument, it is possible to analyse up to 14 sulfur compounds. Thanks to
specific sulfur detector (SSD) and AIR or N2 carrier gas, the separation and sensitivity is
excellent down to 1 ppb levels and low odor unit/m 3.
The instruments are being calibrated with primary gas standard certified at ±2%. There are
no interferences due to the gas chromatography separation and the sulfur specific
detector. The analyzer is LINEAR: range 0 / 100 ppb.
The instruments are fully automated thanks to internal calibration (airmoCAL). The VISTACHROM software
controls the analyzers, multiplexer, meteorological station and enables storage and display of the chromatograms
thanks to Peak Viewer.
It is possible to transfer data to a data logger or modelling software with the communication protocols MODBUS
RTU, JBUS, German PROTOCOL and X-Path.
A comprehensive solution for odor monitoring, including:
- Data Acquisition and transmissions
- GPRS/ModBUS/4-20 mA/0-1 V
- Internal auto calibration to validate automatically the data

sales@chromatotec.com
www.chromatotec.com