Proceedings

ANITATM Mox: Return of experiences from full-scale MBBR anammox plants for digester centrate N-removal and new perspectives with IFAS configuration

Nussbaum, B.1, Piveteau, S.1, Christensson, M.1, Lemaire, R.2, Rohold, L.3 and Bigot, B.4, 1AnoxKaldnes, Sweden, 2Veolia Water Technical and Synergies Department, France, 3Krüger A/S, Denmark, 4Veolia Water Solutions and Technologies, UK: PRESENTATION ONLY

(free)

Operational performances:

•Anita Mox process applied to Bio Thelys™ effluent provided a stable Nitrogen removal (1.2gN/m2 .day)

•Lower rate compared to treatment of conventional reject water mainly due to competitive inhibition by heterotrophs

•Dilution and careful load increase prevent toxicity effects from Bio Thelys™ effluent Recommendations

•BSCOD content should be reduced to a minimum longer residence time in the digester High rate aerobic step prior to Anita Mox process

•Anita Mox operated in IFAS mode

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