INTEGRATED IRRIGATION SYSTEM WITH WATER RECOVERY AND RECIRCULATION

Abstract

An integrated irrigation system with water recovery and reuse for soil crops in a plantation (5), characterized in that it comprises: - an external water source (1) ; - an irrigation network (4) arranged along the plantation (5); - an underground drainage network (2) arranged along the plantation (5), comprising drainage pipes covered with geotextile for collecting water from irrigation leaching and rainfall infiltration; - a storage means (7) hydraulically connected to the underground drainage network (2) for accumulating the recovered water; - a filtration module (10) hydraulically connected to the storage means (7) for filtering the recovered water; - an irrigation and fertigation head (3) comprising an outlet, which is hydraulically connected to both the external water source (1) and the storage means (7); - a three-way valve (6) hydraulically connected to the irrigation head (3), the external water source, the filtration module (10), and the irrigation network (4) to regulate the relative proportion of external water from the external water source (1) and reclaimed water incorporated into the irrigation network (4); - at least one pH sensor (8) and one electrical conductivity sensor (9) arranged at the outlet of the irrigation head (3); - a control unit (11) connected to the three-way valve (6) and the sensors (8, 9), to adjust the relative opening of the three-way valve (6) according to the values measured by the sensors (8, 9) and preset agronomic ranges.