Environment
Recycling farm surpluses
Dénitral is a leading pioneer in semi-liquid manure treatment.
Thanks to Dénitral’s technological advance and their highly
skilled engineers, they have developed a comprehensive treatment method adaptable
to each farm’s needs.
Phase separation, biological treatment, and biomass filtration-
concentration are three combinable techniques used to eliminate
excess nitrogen and phosphorus.
Using the Dénitral process reduces costs since only the volume of
semi-liquid manure corresponding to the amount of excess nitrogen
in the manure spread is treated.
Our
treatment stations have one single goal: give breeders
the best technical, environmental and economical solutions.
Semi-liquid manure treatment and Dénitral solutions
Cooperl and Dénitral work hand in hand with breeders
while assuring water quality and preserving the
environment.
Effluent
At the heart of the Dénitral system is a simple and perfectly
controlled biological process. Around this process, it is possible to
implement complementary techniques of phase separation and
biomass concentration.
The three resulting by-products (organic matter, biomass, effluent)
are perfectly stable and odourless.
Many options for their management vary according to different
situations including fertilization and exportation to other markets.
1• Simplified biological treatment
If nitrogen levels are less than 50 %, there is no need to eliminate
phosphorus. Dénitral instead uses a simplified biological process of
only one step: biological purification.
2• Biological treatment after mechanical separation
If nitrogen levels are greater than 50 %, phase separation
must be used with biological treatment. This improves the biological
process and allows for the elimination of nitrogen and phosphorus
by evaporation. This solution is possible thanks to Dénitral’s
development of its filter, the FILTRAMAT.
3• Biological treatment after double separation
If nitrogen levels are between 50 % and 70 %, and biomass reduction
is necessary, a double phase separation must be carried out along with biological
treatment. Doing so will reduce the number of biological
biomasses and improve the yield on nitrogen and phosphorus by
evaporating a larger amount of organic matter.
4• Comprehensive treatment of Nitrogen and Phosphorus
Nitrogen levels greater than 70 % mean that phosphorus amounts are
more than 250 kg/ha. The phosphorus is, for the most part, contained
in the biomasses. In this case, biomass exportation after dehydration
must be used along with biological treatment. Again, Dénitral has
developed a solution with its filter, the SKIMMAT.
