Valbio

Inst National Des Sciences Appliquees De Toulouse

Institut National Des Sciences Appliquees De Toulouse

Angela Manas-Llamas

Beatrice Biscans

Mathieu Sperandio

Francois Decker

François Decker

Béatrice Biscans

A method for the biological treatment of wastewater containing pollutants, using an aerobic biomass, includes a plurality of successive cycles of a predefined duration in order to achieve pollutants removal efficiency of 90% or higher, each of the cycles including the following steps: &#x2014;introducing a wastewater effluent containing phosphorus and calcium into a reactor containing biomass; &#x2014;applying an aerobic phase by introducing into the reactor a gas flow containing oxygen for a predefined length of time, sufficient to form aerobic biomass granules; &#x2014;decanting the aerobic biomass granules thus formed; &#x2014;and removing at least part of the treated effluent. After each step of introducing effluent into the reactor, the pH in the reactor is maintained at a value above 8 for a length of time at least equal to 10% of the cycle duration.

Method for the biological treatment of wastewater using an aerobic granular biomass

Growing community of inventors

Valladolid, Spain

Angela Manas-Llamas