Water is a scarce commodity every day. In areas such as the Iberian Peninsula, the consumption of water for agriculture is between 70 and 80% of total consumption, so optimizing its use is very important to avoid shortages.
Traditional irrigation systems begin to give way to new techniques that reduce water consumption and improve crop yields.
The proper functioning of these irrigation systems is subject to water quality, as poor water quality will cause seals in the network emitters, decreasing the efficiency and uniformity of this, and resulting in poor crop development and reduced in its performance. To avoid that variations in water quality lead to reductions in crop productivity, it is necessary to protect the emitters of the irrigation networks by means of filtration systems.
Filtration can be defined as the phasic process by which salty particles are extracted, removed or eliminated from a liquid or gaseous medium, by passing them through a filter element called a filter.
The filters are classified as:
– Area filters: They are used to separate organic materials such as algae and coarse particles thanks to a thick layer of siliceous sand contained in the filter through which the water to filter is passed.
– Hydrocyclones: Perform the separation of particles from the water by the effect of the centrifugal force generated by the whirlpool, so that the heavy particles such as the sands that the irrigation water can contain move towards the walls, falling afterwards to the deposit. on the bottom. They are used when there are suspended sands that appear in deep well water.
– Mesh filters: Water is filtered by a mesh, which is defined by the number of openings per linear inch or number of mesh. Particles larger than the openings of the mesh are retained in the filter. They are effective for lightly soiled waters with materials of inorganic origin the size of silt or sand. Mesh filters are presented in three modes, according to the cleaning system they have, manual, semiautomatic and automatic.
– Ring filters: This system has a set of slotted rings that are compressed against each other forming a filter cylinder so that the water passes through the small slots between the rings, trapped in the filter the particles of greater size to the slots. They are suitable for cleaning water of medium to poor quality.
Ring filters are classified as: â € ¢ Manual â € ¢ Automatic. These equipment can have self-cleaning systems, which perform cleaning by automatic backwash operations or manually in the case of mesh filters, rings and hydrocyclones. The semiautomatic systems have mechanisms that cleanse by means of backwash operations through the actuation of said mechanism.
At Gestiriego, we believe that the most important element in a drip irrigation installation is filtration, which is why, thanks to years of research, we have unique filtering systems in the market that cover filtration needs in all types of facilities.