Nutrients　removal　by　simultaneous　nitrification　and　denitrification　(SND)　via　nitrite　pathway　was　investigated　in　a　lab-scale　modified　University　of　Cape　Town　(MUCT)　process　treating　real　domestic　wastewater　with　low　ρ(C)/ρ(N)　ratio.　The　experimental　results　of　177　days　at　(28±2)°C　showed　that　nitritation　was　achieved　when　hydraulic　retention　time　(HRT)　was　controlled　at　6h　and　dissolved　oxygen　(DO)　concentration　was　at　0.3-0.6　mg/L.　Nitritation　was　stably　operated　for　118　days　with　an　average　nitrite　accumulation　rate　(NAR)　of　above　90%.　Based　on　maintenance　of　nitritation,　SND　via　nitrite　pathway　was　achieved　due　to　low　DO　operation　at　aerobic　zone.　An　average　removal　efficiency　of　total　nitrogen　(TN)　by　SND　via　nitrite　pathway　was　33%,　and　the　highest　was　up　to　56%.　Due　to　the　operation　of　SND　via　nitrite　pathway,　the　removal　efficiencies　of　ammonia　nitrogen,　TN　and　phosphorus　were　improved　and　reached　99%,　83%　and　96%,　respectively,　even　though　without　addition　of　external　carbon　sources.　Consequently,　MUCT　process　with　SND　via　nitrite　pathway　is　an　effective　operation　for　the　treatment　of　limiting　carbon　source　wastewater.　Under　SND　via　nitrite　pathway,　the　limiting　carbon　sources　in　raw　wastewater　can　be　fully　utilized　as　well　as　the　improved　TN　removal　and　savings　of　carbon　source　favors　the　phosphorus　removal.