Experimental procedure
Experimentations took place in the 4 treatment stations of phytosanitary effluents, which were set up in 2014 in the farms of the project participants. Effluents were collected in washing areas and treated by a biological process using selected photosynthetic bacteria, added to the storage tanks.
Samples of storage tanks content have been regularly collected since 2014 :
- -before the beginning of phytosanitary treatment period : january to march
- -during the treatment period : june to november
- -after the treatment period : november to january
Samples were collected monthly in each prototype and each storage tank. The laboratory tests allowed to :
- -quantify the active substances from phytopharmaceutic products;
- -monitor volume fluctuations (balance beetwen inputs and water evaporation)
- -verify the bacterial content
Samples were quantitatively analysed for about 400 active substances.
Futhermore AMPA, the highly toxic product from glyphosate degradation, was tested and quantify.