▎ 摘　　要

NOVELTY - Removing nitrogen and phosphorus elements in aquaculture wastewater comprises (i) subjecting the aquaculture wastewater to anaerobic treatment for solid-liquid separation, collecting the liquid phase, and performing anaerobic treatment to obtain aquaculture wastewater, (ii) adding adsorbent into the wastewater to carry out adsorption treatment, separating the solid from the liquid, and collecting the liquid phase to obtain aquaculture wastewater, (iii) precipitating and sterilizing the aquaculture wastewater, where the adsorbent comprises sulfhydryl modified biochar and ferrous complexed graphene oxide, and the ammonia nitrogen of the aquaculture wastewater is ≯ 1500 mg/l. USE - The method is useful for removing nitrogen and phosphorus elements in aquaculture wastewater. ADVANTAGE - The method forms three-dimensional network structure between iron-complexed modified graphene oxide and sulfhydryl modified biochar, which increases overall strength of the adsorbent, and realizes adsorption and removal of ammonia nitrogen and phosphorus in the aquaculture wastewater.