Carbonaceous and Nitrification Inhibition Testing

Aqua Enviro utilise three main techniques for assessing feedstocks for aerobic treatment. With these being carbonaceous and nitrification inhibition testing, Zahn Wellens / EMPA RBCOD assessment and laboratory trials using sequence batch reactors.

Carbonaceous and nitrification inhibition testing is usually the first stage of assessment in the amenability of a test material for aerobic treatment.

Using respirometric methods to determine oxygen uptake rate, the sample is tested undiluted on a nitrifying activated sludge seed with and without nitrification inhibitor, compared to a control sample comprising of aerobic seed material and distilled water. All samples contain synthetic sewage to ensure theoretical respiration rate can be achieved

A report of results will be produced which will show:-

• % inhibition to carbonaceous and nitrification bacterial populations
• Brief indication of the Amenability of the feedstock for Aerobic treatment
• Indication of whether the feedstock possesses any inhibitory properties towards carbonaceous and or nitrifying bacterial populations

1kg or 1L of test material is required for the testing.

Synonyms / keywords: toxicity testing, inhibition testing, respiration inhibition, nitrification inhibition, Strathtox, oxygen uptake rate testing, respirometry

For more information about how Aqua Enviro
can help you, contact us...

Charlotte Elliott

Laboratory Manager

charlotte.elliott@aquaenviro.co.uk

01924 242 255

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