S-Online - Description
The S-Online for online determination of sulfides provides
the opportunity to measure sulfides/H2S even below the
odor threshold in wastewater. By the combination of a
highly efficient gas extraction and a selective detection
method, sulfide/H2S is determined in aqueous solutions.
After dosing, the sample is acidified forming H2S gas which
is then degassed from the solution in the H2S analyzer.
The gas is then carried into an amperometric sensor that
is sensitive to detecting H2S.
Therefore, interferences of the sample matrix do not affect
the sensitive measurement. Even complex matrices such as
industrial wastewater (e. g. containing alkaline wastewater,
hydrocarbons or ammonia) can be monitored instantly
as well as providing reproducible results.
The wastewater sample is taken up automatically.
By the use of an integrated automatic back-purging,
the system is robust and low-maintenance.
The measuring range can be varied widely and
can also be adjusted to the required application.
For instance, the S-Online can be used as a H2S
dependent controlling system for chemical
wastewater treatment. The results can be
transferred through digital alarm- and
analog outputs into the measuring station.