A　long-term　experiment　in　an　anaerobic　ammonium　oxidation　(anammox)　reactor　showed　that　anammox　consortia　could　perform　a　stable　and　efficient　Fe(II)-dependent　dissimilatory　nitrate　reduction　to　ammonium　(DNRA)　coupled　to　the　anammox　(DNRA-anammox)　process　by　controlling　the　EDTA-2Na/Fe(II)　ratio　and　pH,　with　a　total　nitrogen　removal　rate　(TNRR)　of　0.23　+/-　0.01　kg-N/m(3)/d.　Anammox　bacteria　(Candidatus　Kuenenia)　were　the　dominant　and　functional　microbes　in　such　a　nitrate　wastewater　treatment　system.　Visual　MINTEQ　analysis　showed　that　the　EDTA-2Na/Fe(II)　molar　ratio　affected　the　influent　composition　of　Fe　and　EDTA　species　and　hence　nitrate　removal,　while　pH　influenced　both　nitrate　removal　and　the　coupling　degree　of　the　Fe(II)dependent　DNRA-anammox　process　due　to　its　own　physiology.　The　kinetic　simulation　results　showed　that　excess　EDTA-2Na　imposed　a　competitive　inhibition　on　the　Fe(II)-dependent　DNRA-anammox　process,　and　the　Bell-shaped　(A),　(B),　(C)　and　Ratkowsky　models　could　be　used　to　explore　the　pH　dependency　of　the　Fe(II)-dependent　DNRA-anammox　process.