[Objective]The research aimed to further optimize the operating parameters of three-step series constructed rapid infiltration system for treating high ammonia nitrogen domestic sewage.[Method]Taking high ammonia nitrogen domestic sewage in the students′ living area in a university as the research objects,the optimum operating parameters were confirmed by the simulated column experiment from the aspects of hydraulic loading,flooding-drying ratio and the cycle of hydraulic loading.[Result]The optimum operati...