2015
SESDE 2015 Proceeding
Coagulation-adsorption-flocculation process to regenerate cip solutions. effect on the physicochemical and cleaning properties of regenerated solutions
Authors: Mehdi Dif, Olivier Barrault
Abstract
The regeneration of Cleaning In Place (CIP) solutions presents an increasing interest for chemical industries (food, cosmetic and textile sectors) and sewage treatment plants. For the industrial sector, the regeneration of cleaning solutions allows to perform economies of water and chemical reactants. It is also involved indirectly in the improvement of the industrial productivity by reducing the downtime of the production equipment destined to the CIP operation. On the other hand, the operation of regeneration allows to reduce global costs, in sewage treatment plants, of used solutions rejected by CIP units. Indeed, for the dairy industry, this volume can be up to 95% of the rejected volume to treatment plants. The present study exposes a new regeneration method of CIP solutions using sequences of adsorption-coagualtion-flocculation processes, coupled with a physical separation by decantation, flotation or membrane filtration
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