Energy Consumption for Nutrient Removal from High-Nitrate and High-Phosphorus Wastewater in Aerobic and Anaerobic Bioelectrochemical Reactors

An attempt was undertaken to determine indicators of energy consumption in bio-electro reactors (BERs) i.e., an aerobic rotating electrobiological disc contactor (REBDC) and anaerobic sequencing batch biofilm reactor (SBBR), during contaminant removal from soilless tomato cultivation wastewater having a specific composition, high nitrate phosphorus concentrations low COD. Because this specificity, the treatment process characterized by cumulative indicator for simultaneous nitrates—EEINUTRIENTSrem (electric per unit removed nutrient load, expressed as kWh/kgNUTRIENTSrem). Four values direct current density were tested: 0.63, 1.25, 2.5, 5.0 A/m2. The compared at hydraulic retention time (HRT) 24 h. study demonstrated that electric load determined SBBR ranged 30 464 kWh/kg NUTRIENTSrem lower than obtained REBCD, 80–1380 NUTRIENTSrem.