Filtration systems
One of the important elements of the drip irrigation system is the filtration station.
The filtration station is an independent, independent part of the water treatment system, including filters, taps, pressure gauges, manifolds and other additional equipment necessary to obtain a sufficient amount of filtered (purified) water.
Depending on the presence of impurities in the irrigation water and the size of the irrigated area, the filtration station may include hydrocyclone, disc, mesh and gravel filters. According to the cleaning method, they can be divided into automatic and manual.
Varieties of filters by structure and cleaning principle:
| Name | Device, filtering agent | Features, scope |
|---|---|---|
| Sand and gravel | Sand and gravel are sized and distributed into sections in a specific order. When contaminated, it is washed with a reverse flow of water. | It is used when using water from open water bodies (rivers, ponds, etc.) |
| Mesh | Fine mesh, hand washable or replaceable cartridge | They are used for cleaning sand, silt particles for domestic and professional purposes. Optimal filtration degree for drip irrigation ≥130 micron |
| Disk | Cartridge made of calibrated discs with fine grooves. The filter is cleaned manually or automatically by backwashing. | They are used for cleaning sand, silt particles for domestic and professional purposes. Optimal filtration degree for drip irrigation ≥130 micron |
| Hydrocyclones | There is no filtering agent, mechanical impurities are removed under the influence of centrifugal force (as in a centrifuge) | Effective against high density particles (sand) |