Purified water for irrigation (III). Nitrogen Kjeldahl

The method of nitrogen Kjeldahl allows the determination of organic nitrogen of biological origin (proteins), but not that of most organic nitrogen of biological origin (proteins), but not that of most organic nitrogen of biological origin (proteins). nitrogen compounds of industrial origin (oximes, hydrazine,...). The nitrogen content of water is the sum of organic nitrogen (R-N), ammonia (NH3), nitrite (NO2¯), and nitrate (NO3¯).

The same applies to nitrite and nitrate nitrogen (to determine the latter, a reduction in an alkaline medium must be carried out).

Therefore, the nitrogen Kjeldahl corresponds to the sum of organic amine compounds of biological origin and ammonia, which should be between 40-60 mg/l, representing one fifth of the BOD. These nitrogenous forms will be susceptible to change into nitrites and nitrates subsequently in the soil. It is interesting to know this in order to be able to adjust the doses of fertiliser for our sports surfaces.

Excesses of nutrients, nitrogen and phosphorus in our lakes cause algae to grow exacerbatingly, to such an extent that the light ceases to pass to the bottom of the lakes, which is when algae blooms. eutrophicationThe death and putrefaction of the fish, the consumption of oxygen in the water and the foul odours.

A excess nutrients that triggers disproportionate algal growth can lead to the production of traffic jams in golf course irrigation pipes. We recommend monitoring the pressures at the inlet and outlet of the pipes. filters with automatic control systems such as pumping monitoring that we can offer you here.