An aerobic digestion toilet (1) having a toilet bowl (3) supported to discharge into a chamber (2) with means for inducing a convection air flow through the toilet and a tiltable closure member (12) for the toilet bowl outlet operable from adjacent the toilet seat and biased towards the closed position of the toilet bowl outlet and including means for moving deposited faeces within the chamber operable in unison with the closure member designed in such a manner as to produce early separation of urine from the faeces.