The QuickTOC® of LAR Process Analysers AG is an
online measuring system for the determination of total carbon (TC), total
organic carbon (TOC), total inorganic carbon (TIC) and dissolved organic carbon
(DOC) according to DIN EN 1484, ISO 8245 and EPA 415.1.
The QuickTOC® is suitable for almost every TOC
measurement in sewage treatment and industrial waste water application. Typical
on-line applications are plant effluent monitoring, waste water treatment
(influent and effluent water) and detection of organic spills and product loss
(e.g. in chemical, petro-chemical and food processing plants).
The current state of the art engineering for thermal catalytic
oxydation uses temperatures between 680° and 1000°C. The QuickTOC®
has been engineered to work without the aid of expensive catalysts by using
temperatures of more than 1200°C. Therefore, difficult to combust compounds are
oxidized effectively and rapidly, regardless of their composition.
The QuickTOC® is designed to operate in a batch
mode. The TOC is analysed in 3 minutes. This guarantees the determination of
fast and transient peaks throughout the day.
The sample is taken using the patented and maintenance-free
sampling system FlowSampler. FlowSampler works filtration-free and takes the
sample in the centre of the sample stream against the direction of the main
Even solid particles are sampled by the FlowSampler and
reduced in size by a homogenizer. The sample is then pumped by the homogenizer
through a flow through sample cell. In the sample cell the sample is continously
stirred to keep it in a homogenized, representative state.
The sample injection volume is controlled by a xy syringe
sampling system. The sample aloquote is then injected into one of two injection
ports of the two reactors.
By using a temperature of more than 1200°C the
QuickTOC® obtains complete combustion of the organic and inorganic
components in the sample by using atmospheric air only.
That means greater reproducibility from the
QuickTOC® and no maintenance costs because there is no need to
replace expensive catalysts.
At this high temperature all the inorganic carbon is converted
to CO2. This enables the true calculation of TOC from the difference
between TC - TIC. It is important to note that the QuickTOC® avoids
the loss of the VOCs.
The measurement of the inorganic compounds is performed in an
additional reaction vessel, in which a continous stream of acidified water is
injected with the sample and the evolved CO2 is stripped by the
The combustion gases from the two reactors flow through a 2
stage gas-cooler which is maintained at 4°C, to an absorption column before
flowing into the IR detector.
The detection of CO2 takes place in the NDIR
analyser, which detects the CO2 in form of a peak. The area of the
peak is calculated by the built-in microprocessor.
The software supports every available function from
controlling the QuickTOC® to further processing of the measured
values. An uncomplicated data transfer through serial or parallel interfaces to
a monitoring station is a matter of course.
All these features result in an easy to operate analyser with
low maintenance requirements, high reproducibility and fast measuring results
for many years - the QuickTOC® by LAR.
|Type of measurement
||0.1 - 200 mg/l TOC|
5 - 4,000 mg/l TOC
50,000 mg/l TOC
||maintenance-free particle separator, optional
Ultra-Turrax for continous homogenisation of the
|Graphic-LCD-screen, high resolution, back-lit|
|Self-explanatory software including maintenance checklists and
|Industry standard data interface|
|Waste water, drain
||tube 30 mm ID or|
threaded 32 mm OD or
||230 / 115 V ~, 50 / 60 Hz|
||0 / 4 - 20 mA|
||RS 232 for remote control|
||4 relay contacts|
||steel IP 54 (NEMA 13)|
||1020 x 700 x 520 mm (H x W x D)|
40.2 x 27.6 x 20.5
inches (H x W x D)
||115 kg (254 lbs)|
||NEMA 4X (Class I Div 2)|
ATEX Zone 1