Ammonium in Sewage Sludge

Prove InstrumentsPhotometric determination using the indophenol blue method

Sample Preparation

Charcoal activated for soil tests
Folded filter

In a 1000-ml volumetric flask mix 50 g of the sample with water for analysis and fill up to volume. Let the insoluble parts settle and decant 250 ml of the supernatant solution. Then mix with 2.5 g of charcoal activated for soil tests and stir for 10 minutes, before filtering through a folded filter.


Determine with the below mentioned test kits.


Ammonium content in mg/l NH4 = analysis value in mg/l NH4 x 20



Product 114544 is not compatible with Move 100.