TOC-Analyzer QuickTOCairport for Airports

TOC Analyzer for Airport Applications

The TOC analyzer QuickTOCairport is the ultimate online measuring system for the determination of Total Organic Carbon (TOC) and Chemical Oxygen Demand (COD) for airport applications.

With our application-specific solution, operators are able to perform efficient and effective water management at airports, e.g. de-icing wastewater or run-off rainwater.

Features and Benefits

Exact determination of TC, TOC (TRUE TOC) and TIC
Measurement Range: 0.1-100 mg/l, 2-400 mg/l, 5-2,000 mg/l, 100-15,000 mg/l, 100-50,000 mg/l, further options available
Automatic ranging
Response Time TOC: 3 minutes
Proven thermal oxidation principle
Highest combustion temperature available (1,200°C)
Catalyst-free
Multi-stream measurements (optional)
No filtration necessary
High salt concentrations possible, up to 30% NaCl
No memory effects
Very low maintenance and operational costs
According to DIN EN 1484:1997-08, ISO 8245:1999-03 and EPA 415.1

Applications

LAR’s total organic carbon analyzer is suitable for a variety of applications and types of water:

Surface water
De-icing water

Options

Using analyzer options, the measurement system is adaptable for every measurement challenge.

FlowSampler
Ambient Air Preparation Unit
CO₂-Remover
Multi-stream measurement for up to 6 sample streams
Combination with COD and TN_b detection

Housings

For safe operation in hazardous areas, there are different protection housings available:

IP54 (Standard)
NEMA 4X
ATEX Zone I
ATEX Zone II
IECEx

Documentation

Product Brochure

Surface water and de-icing wastewater should be continuously monitored – from an ecological as well as economic point of view. By using reliable online measurment systems high wastewater charges can be avoided.

Fluctuating loads and sticky substances are what an analyzer has to be able to deal with.

In the winter months airplanes, runways and landing
strips are de-iced with the help of de-icing agents. Chemicals such as glycol, acetates or formates are used which are additionally mixed with thickening agents in order to improve their adhesion to the surfaces. Finally, the de-icers have to stick to the surfaces to prevent the formation of new ice.

However, on precipitation this leads to contamination of the surface water and within the analyzer, these sticky (adhesive) substances may cause adhesions resulting in memory effects and/ or carry-over effects.

Hereby, residual traces of previous measurements falsify the results of the current measurement. Then the loads that fluctuate strongly depending on precipitation and use of de-icers, cannot be detected accurately. Therefore, within the analyzer, the sample should come into contact with wetted parts as little as possible.

Additionally, the analyzer‘s measurement range has to be wide enough in order to accurately determine the loads which are monitored by use of TOC as parameter. On one hand, the critical values for public discharge are very low and on the other the analyzer must be able to reliably measure high concentrations of up to 50,000 mg/l C.

Exact Analysis. At 1,200°C, the TRUE TOC is determined.

For an exact TOC measurement all carbons bonds – incl. particles – must be reliably combusted. LAR’s unique robotic system is capable of transporting and measuring a high content of solid matter without any filtration of the sample. Additionally, LAR’s ultra high temperature method with combustion at 1,200°C guarantees the complete oxidation of the sample.

This analysis results in TRUE TOC.

Measurement principle of QuickTOCairport

The building blocks principle for a tailor made measurement instrument.

The use of inert materials as well as a pump, which is installed downstream of the sample stream, prevent carryover and memory effects caused by absorption and adsorption. The automatic ranging feature ensures reliable measurements between 0.1..50,000 mg/l C without dilution or pretreatment of samples. This means, fluctuating loads and adhesive samples are easily analysed.