Purification of wastewater, comprises converting sluice sludge in predation reactor comprising substrate which contains worms

摘要

Sluice sludge (5) is passed over a substrate containing worms in a predation reactor (6). A process for purifying an aqueous wastewater flow (3) comprises the following steps: (A) separating the flow into an effluent and sluice sludge; and (B) converting the sludge into predated sluice sludge (9) in a predation reactor comprising a substrate containing worms, in which the sludge is made to flow over the substrate. An independent claim is also included for the process apparatus, the reactor comprising two compartments separated by the substrate containing the worms.