Reliable Detection of Oil in Water

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Source: LAR Process Analysers AG

LAR's QuickOIL is an online analyser for the determination of oil in water (OIW). Since oils and fats consist of carbon compounds, TOC analysis (total organic carbon) is particularly suitable for their reliable detection. In contrast to other oil in water detectors, LAR's TOC analyser determines all types of oils and fats – regardless if they are of animal, vegetable, mineral or synthetic origin. For the assessment of water streams, whether oils and fats are present or not, operators use TOC analysers to avoid investments in several OIW systems.

The TOC analyser works with the thermal combustion method at 1,200 °C. The high oxidation potential guarantees the complete thermal decomposition of all sample ingredients to CO2. Thus, there is no need for operators to purchase oxidation promoting catalysts. The produced CO2 is measured by a NDIR detector and then, the TOC value is determined. The innovative process control is charaterized by only three wetted parts. Thus, memory- and carry-over effects are avoided and measurement results are determined within a few minutes. In the case of exceeding the alarm threshold, operators may quickly initiate countermeasures protecting downstream plant areas from pollution.

LAR's QuickOIL is designed for the measurement of up to 6 sample streams. Thus both, the influent as well as the effluent may be reliably monitored by one unit. As a result, investments in several OIW systems are avoided and the operating as well as maintenance costs are minimised.

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