Determination of dry sludge hold-up in a continuous paddle dryer

Mathieu Milhé (1) , Martial Sauceau (1) , Patricia Arlabosse (1)

1 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement

In previous works, solids holdup proved to be the most influential parameter of a stochastic flow model of a continuous paddle dryer: we thus aimed at correlating it with operating parameters. A fractional factorial Design of Experiments (DoE) was implemented, in which dryer slope, stirrer speed, overflow level and sludge flow rate were initially selected as factors. The DoE was then completed after reducing the number of influent parameters and their interactions, using surface response methodology (RSM), to get a predictive relationship for solids holdup determination.

Mots clés: Paddle dryer; Design of experiments; Solids hold-up; Empirical correlation; Stochastic flow

Domaines: Génie des procédés; Ingénierie de l'environnement

Mathieu Milhé, Martial Sauceau, Patricia Arlabosse. Determination of dry sludge hold-up in a continuous paddle dryer. ECSM 2014 - 4th European Conference on Sludge Management, May 2014, Izmir, Turkey. 8p. ⟨hal-01725292⟩