Nitrogen Analysis

Parameter

Sum of organic bound Nitrogen and ammonia Nitrogen

Method

Analysed via the Kjeldahl method, using destruction, distillation and titration.

Application

In most cases indicative of total nitrogen content. Important for estimating potential ammonia inhibition in anaerobic digestion.

Parameter

Ammonia Nitrogen

Method

Analysed via titration after destillation

Application

Important parameter in the nitrogen cycle of biological degradation processes (anaerobic digestion, fermentation, composting, water treatment). Also potential inhibitor in anaerobic digestion.

Parameter

Sum of organic bound Nitrogen and Ammonia Nitrogen and oxidized Nitrogen.

Method

Analysed simular to the Kjeldahl method, using destruction, distillation and titration.

Application

Measurement of total Nitrogen concent for samples of aerobic biological degradation processes. Possible to calculate oxidized Nitrogen (NO3 and NO2) if measured together with Kjeldahl Nitrogen.

Parameter

Percentage of Kjeldahl nitrogen converted to ammonia Nitrogen in anaerobic
processes.

Method

Measurement of ammonia content after controlled anaerobic fermentation.