Apparatus for the treatment of biochemical waste

Abstract

Abstract In the apparatus the liquefying, acid-generating and methane- generating hydrolysis stages are separate. It consists of an elongate horizontal enclosure (1) containing a mixture of already treated effluents and of new waste being treated. The new waste is introduced at one end (2) and the treated effluent is drawn off at the other end (12). The enclosure (1) is divided into three compartments (27, 28, 29) by two separating partitions. Each partition has an opening slightly below the level of the free surface of the mixture to isolate from the two sides of its bottom part, upstream, a mass of mixture containing a population of bacteria which are predominantly different from that of the mass situated downstream of the partition and, in its top part, different gas volumes. The first partition separates the compartment for the liquefying hydrolysis stage (27) from that for the acid-generating stage (28), and the second the compartment for the acid-generating stage (28) from that for the methane-generating stage (29). A bed of bacteria controlling the pH is provided in each compartment. <IMAGE>

Inventors

• 👤 Claude Chasse
• 👤 Pierre Radenac

Bibliographic Details