Low-Quality Irrigation Water Treated Using Waste Biofilters

Although in water-deficient regions, agricultural runoff, drainage water or surplus irrigation is often used, there are constraints related to its quality be considered (salinity, nutrients and pollutants). Thus, it necessary treat considering the low-energy supply systems available farmers. This work focuses on a nature-based treatment system consisting of two prototypes anaerobic bioreactors with horizontal vertical flow. To enhance circular economy strategy, different wastes (coarse sand almond pruning) were used as bioreactor components. The aim research was monitor (pH, electrical conductivity, suspended solids, chemical oxygen demand, alkalinity bicarbonate, carbonate nitrogen contents) before after treatment. All parameters studied (except demand) reduced by treatments, but large variations. Furthermore, 100% reduction flow filter bed formed coarse pruning. It observed that variation concentration some associated type (i.e., C/N ratio residue) design for circulation findings promising, further needed achieve reductions all parameters.