In　this　study,　a　new　adsorbent　of　silicon-doped　magnesium　oxide　(SMG)　was　developed　for　the　recovery　of　nutrients　from　wastewater.　The　adsorption　conditions　including　adsorbent　dosage,　initial　solution　pH,　contact　time,　coexisting　substances,　N/P　molar　ratios,　and　reaction　temperature　were　investigated.　Analysis　of　field　emission　scanning　electron　microscopy-energy　dispersive　spectrometer　(FESEM-DES)　and　specific　surface　areas　(BET)　showed　that　SMG　was　a　mesoporous　adsorbent　with　S-BET　of　108.31　m(2)/g.　The　recycled　sediment　(RS)　was　identified　as　almost　pure　struvite　via　X-ray　diffraction　(XRD),　Fourier　transform　infrared　spectroscopy　(FT-IR),　and　X-ray　photoelectron　spectroscopy　(XPS).　The　recovery　efficiencies　of　SMG　reached　43.25%　of　ammonia　nitrogen　and　97.31%　of　phosphate　at　dosage　of　0.3　g/L,　initial　solution　pH　of　7.0,　contact　time　of　20　min,　and　temperature　of　298　K.　Under　the　optimal　reaction　conditions,　the　maximum　adsorption　capacities　of　SMG　were　170.93　mg/g　of　ammonia　nitrogen　and　420.89　mg/g　of　phosphate　at　N/P　molar　ratio　of　1.5:1.　Coexisting　humic　acid　(HA),　calcium　(Ca2+),　acetic　acid　(AA),　and　ferric　ions　(Fe3+)　in　nutrient　solution　hindered　the　struvite　ordered　precipitation.　The　adsorption　process　followed　pseudo-second-order　and　Elovich　kinetic　models　and　was　well　described　by　both　the　Langmuir　and　Freundlich　isotherms　at　room　temperature.　All　results　indicated　that　the　most　likely　mechanism　of　nutrients　recovery　from　wastewater　was　chemical　precipitation　and　proved　that　SMG　was　a　high-efficiency　adsorption　material　in　a　wide　pH　range　of　3.0-9.0　for　simultaneous　recovery　of　nutrients　from　wastewater.