In　this　study,　a　novel　DEAMOX　(DEnitrifying　AMmonium　OXidation)　process　coupling　anammox　with　partial-denitrification　generated　nitrite　(NO2--N)　from　nitrate　(NO3--N)　was　developed　for　simultaneously　treating　ammonia　(NH4+-N)　and　NO3--N　containing　wastewaters.　The　performance　was　evaluated　in　sequencing　batch　reactors　(SBRs)　with　different　carbon　sources　for　partial-denitrification:　acetate　(R1)　and　ethanol　(R2).　Long-term　operation　(180　days)　suggested　that　desirable　nitrogen　removal　was　achieved　in　both　reactors.　The　performance　maintained　stably　in　R1　despite　the　seasonal　decrease　of　temperature　(29.2　degrees　C-12.7　degrees　C),　and　high　nitrogen　removal　efficiency　(NRE)　of　93.6%　on　average　was　obtained　with　influent　NO3--N　to　NH4+-N　ratio　(NO3--N/NH4+-N)　of　1.0.　The　anammox　process　contributed　above　95%　to　total　nitrogen　(TN)　removal　in　R1　with　the　nitrate-to-nitrite　transformation　ratio　(NTR)　of　95.8%　in　partial-denitrification.　A　little　lower　NRE　was　observed　in　R2　with　temperature　dropped　from　90.0%　at　22.7　degrees　C　to　85.2%　at　16.6　degrees　C　due　to　the　reduced　NTR　(87.0%-67.0%).　High-throughput　sequencing　analysis　revealed　that　Thauera　genera　were　dominant　in　both　SBRs　(accounted　for　61.53%　in　R1　and　45.17%　in　R2)　and　possibly　played　a　key　role　for　partial-denitrification　with　high　NO2--N　accumulation.　The　Denitratisoma　capable　of　complete　denitrification　(NO3--N　-＞　N-2)　was　found　in　R2　that　might　lead　to　lower　NTR.　Furthermore,　different　anammox　species　was　detected　with　Candidatus　Brocadia　and　Candidatus　Kuenerda　in　R1,　and　only　Candidatus　Kuenenia　in　R2.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.