Recovery of nutrients as struvite before it forms and accumulates is in line with sustainablernwastewater management. It prevents water pollution and enables use of the nutrients asrnfertilizer to increase agricultural productivity. A bench-scale fluidized bed reactor (FBR) wasrnused to recover phosphate (PO4) and ammonium (NH4) through struvite crystallization, fromrnsynthetic wastewater and aerobic digester domestic wastewater supernatant collected from,rnHaile Garment Addis Ababa and Oromia Condominium Wastewater Treatment Plant. rnStruvite crystallization is a promising nutrient recovery method. Its recovered precipitate canrnbe used as a slow release fertilizer and raw material for chemical industry. The objective ofrnthis research was to examine the influence of different parameters affecting the performance ofrnFBR for phosphorus (P) and nitrogen (N) removal and recovery efficiencies. rnIn this study, the impacts of important factors on nutrient recovery in a laboratory scale (FBR)rnwere examined using synthetic wastewater to get optimal values. The nutrient recovery of thernFBR from real wastewater was also evaluated by using the optimum parameter values. Thernrecoveries of PO4 and NH4 were evaluated by changing the values of the followingrnparameters: pH (7.5-10), molar ratio of Mg/P (0.75-1.75), Hydraulic retention time (HRT = 15hr),rnandrnsettlingrntimern(15-90min).rnThernoptimumrnvaluesrnofrnpH,rnMg/P,rnHRT,rnandrnsettlingrntimernrnwerernfoundrntornbern9,rn1.5:1,rn2hr,rnandrn30minrnrespectively.rnUnderrnthesernoptimumrnvalues,rnthernPrnandrnrnNrnremovalrnefficienciesrnofrnconicalrnFBRrnfromrnsyntheticrnandrnrealrnwastewaterrnwerern97%rnandrn95%rnand 67.2% and 64.7%, respectively. Moreover, different techniques were used to enhance rnnutrient recovery efficiency including use of a reactor that has three parts and insertion ofrncones in each part. rnThe findings of the study show pH, Mg/P molar ratio, HRT, and settling time to be importantrnfactors that influence Phosphorus and nitrogen removal efficiency in FBR. A conical FBR withrnthree distinct parts gives a good nutrient recovery through struvite precipitation.