Health & Safety

Determination of toxicity in water

Jul 31 2017 Comments 0

LAR's online analyser ToxAlarm is a measuring system for the determination of toxicity in drinking and surface water. The analyser contains a highly sensitive bacteria culture in a fermenter, which constantly and independently produces biomass. Since every water sample is tested with a small and fresh amount of bacteria, the risk of the entire bacteria culture within the analyser being contaminated is avoided. Unlike alternative toxicity tests, purchasing or time consuming breeding of test organisms is not necessary anymore. The used subset of nitrifiers is brought into contact with the waste water. Then, an oxygen electrode measures the bacteria's oxygen consumption, whereby the toxicity concentration can be detected. The measurement takes place in 5-10 min. The toximeter ToxAlarm is optimally suitable for online toxicity monitoring as well as for laboratory use in drinking and surface water applications.

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