BIOTECTOR B7000: Online analyser for TOC / TN / TP - HACH LANGE

BIOTECTOR B7000: Online analyser for TOC / TN / TP
Principle of operation
The B7000’s unique TSAO method achieves total and
complete oxidation of the sample, including organic
carbon to CO 2 , nitrogen compounds to nitrate and
phosphorous compounds to phosphate.
TOC measurement: A representative unfiltered sample
from the stream to be measured is pumped into the
analyser. Acid is added to lower the pH so that inorganic
carbon is sparged off as CO 2 and measured as Total
Inorganic Carbon (TIC). TSAO utilises hydroxyl radicals
generated by ozone and sodium hydroxide. To remove CO 2
from the oxidized sample, the pH of the sample is lowered
again. The CO 2 is sparged and measured by the specially
developed non-dispersive infrared (NDIR) CO 2 analyser.
The result is displayed as Total Organic Carbon (TOC).
Order information
HACH LANGE offers the complete TOC measuring
solutions - from sample preparation to outlet.
The B7000 system is available with a variety of options:
- Air conditioning
- Heating, interior and exterior lighting
- Alarm functionality
- Vacuum sampler / Venturi driven vacuum sampler
- Oxygen concentrator / with compressor
- Outdoor version
Optimal control and monitoring of your processes
TOCTAX TOC analyser
Ideal for monitoring the TOC concentration
in the effluent of wastewater treatment
plants. Optional available with sample
homogenisation.
ASTROTOC TOC analyser
Suitable for TOC measurements in industrial
conditions, e.g. boiler, pure water
applications.
HACH LANGE GMBH
Willstaetterstrasse 11
D-40549 Duesseldorf
Tel. +49 (0)211 5288-0
Fax +49 (0)211 5288-143
info@hach-lange.de
www.hach-lange.com
TN measurement: When TOC analysis is complete, the
oxidized sample fluid is transferred into the measuring cell.
Here the photometer analyses the wavelengths applicable
to nitrates. The result is displayed as Total Nitrogen (TN).
TP measurement: The oxidized sample fluid is placed into
the TP boiler where it undergoes an acid boiling at 100ºC
for typically 10 minutes, breaking down the polyphosphate
bonds into orthophosphates. The sample is reacted with TP
reagent and transferred into the measuring cell. Here the
photometer analyses the wavelengths applicable to
phosphates. The result is displayed as Total Phosphorus
(TP).
In order to ensure uninterrupted operation of the B7000
analyser, HACH LANGE offers:
- Consumables: TOC reagent, TN cleaning solution,
TP reagent
- Spare & wearing parts
Please contact your HACH LANGE representative, to
configure a B7000 analyser for your application.
Cuvette tests
Photometric tests for easy validation of
TOC, TN, TP analyser results.
For more information please visit our website!
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