Abstract: The invention relates to a container assembly comprising a container for depuration of mollusks and a drain canal unit. The assembly provides a closed circulation of water via a circulation route that has an entry portion between the floor of the container and the drain canal unit, a circulation channel between the corner of the container and a drain canal unit, and a drain canal within the drain canal unit. Also provided is a drain canal unit for use in stackable containers that provides circulation of water within a container assembly.

Abstract: The invention relates to an oyster farming method comprising at least one cultivation step (200) wherein periods of immersion are alternated with periods of mechanical dewatering of the oysters, the mechanical dewatering periods lasting between 3 hours and 48 hours, and an immersion period between two periods of mechanical dewatering lasting between 3 hours and seven days.

Abstract: This process involves the flowing of wastewater across a mass of zebra mussels that are attached to a fixed media such as a steel plate. The filtering action of the zebra mussels will remove contaminants. These contaminants will be used as food and incorporated into the mussels body tissue or excreted as feces. Filtered material that is not used as food is encapsulated and excreted as psuedofeces. Periodically the accumulated feces and psuedofeces, along with dead mussels, will have to be removed from the system.

Abstract: A method of treating water wherein the water is passed through a column of zebra mussels. In a preferred manner, a single bed of living zebra mussels is used.

Abstract: A tank for the depuration of shellfish incorporating an elongated open vessel for retaining sea water and a manifold extending the length of the bottom of the vessel substantially along the longitudinal center axis from one end of the vessel to the other and including a connection at each end thereof for the injection of sea water with a plurality of fill pipes extending from the manifold toward each side of the vessel and each fill pipe including a pattern of holes for the emission of sea water therefrom forming an up-welling pattern to provide a desired turbulence within the vessel and a trough extending around the upper periphery of the vessel for recovering sea water spilling over the upper walls of the vessel such that the injection of sea water through the holes and the recovery of the sea water in the troughs preventing dead spots within the sea water in the vessel.