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Nitrogen transformations were studied in flooded and non-flooded vertical flow columns with and without a rice plant. Influent (average concentration: NH 4+ -N: 40mgL −1 ; NO 3− -N: 0.15mgL −1 ; and NO 2− -N: 4.0mgL −1 ) was supplied at 1.25cmd −1 during stage 1 (20 May–5 August) and at 2.50cmd −1 at stage 2 (6 August–26...
This study attempts to achieve a high-rate nitrogen removal via the complete autotrophic nitrogen removal over nitrite (CANON) process in a modified single-stage tidal flow constructed wetland (TFCW) with step-feeding, and nitrogen transformation pathways in the TFCWs treating domestic wastewater were explored under shunt ratio constraints. Shunt ratio significantly affected nitrogen transformation...
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