Abstract: An ecological fluidized bed system and method for the processing of polluted water to provide treated water. The system comprises a fluidized bed container containing a layer of coarse media with a layer of fine media above it which has a buoyancy substantially similar to the polluted water, and particularly pumice rock having a high surface to volume ratio, an inlet to introduce water into the container, and an outlet to withdraw treated water, and either a mechanical pump in an anaerobic operation or an airlift pump in an aerobic operation. The system includes an ecosystem such as microorganisms, benthic animals, and higher aquatic plants for the purification of the polluted water within the container, and a pump means to provide for the rapid recirculation of the polluted water within the container with the fine media as a fluidized bed, with a recirculation rate up to a thousand times the flow-through water rate, thereby providing for the rapid, efficient and effective purification of the polluted water.

Abstract: An ecological fluidized bed system and method for the processing of polluted water to provide treated water. The system comprises a fluidized bed container containing a layer of coarse media with a layer of fine media above it which has a buoyancy substantially similar to the polluted water, and particularly pumice rock having a high surface to volume ratio, an inlet to introduce water into the container, and an outlet to withdraw treated water, and either a mechanical pump in an anaerobic operation or an airlift pump in an aerobic operation. The system includes an ecosystem such as microorganisms, benthic animals, and higher aquatic plants for the purification of the polluted water within the container, and a pump means to provide for the rapid recirculation of the polluted water within the container with the fine media as a fluidized bed, with a recirculation rate up to a thousand times the flow-through water rate, thereby providing for the rapid, efficient and effective purification of the polluted water.

Abstract: A rotatable, theft-resistant mount for office instruments such as computer consoles in accordance with the invention comprises a base having two vertically stacked sections. The lower section is generally circular with a depression in the middle of its upper surface. The upper section has a matching circular surface defined by a depending rim which nests over the circular lower section, and a depending stud rotatably affixed in its lower surface which mates with the depression in the upper surface of the lower section. The lower section is also provided with a diametrical tubular passage passing through the central depression. The depending stud affixed to the upper section is provided with a hole through which an elongated locking rod positioned within the tubular passage extends, thus preventing the upper section of the base from being separated from the lower section, while permitting relative rotation of the two sections.