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 method for treating water comprises:(a) connecting a plurality of tanks each capable of holding water in series such that water can be transferred along the series of tanks from a first tank to a last tank, wherein each of the tanks comprises a bottom and light-transmitting sides;(b) stocking the tanks with water and organisms for removing pollutants from the water,(c) inputting water containing pollutants to the first tank; and(d) outputting water from which said pollutants have been removed from the last tank.

Abstract: The disclosed invention relates to an apparatus for removing pollutants from various types of wastewater, using biologically active organisms and without using chemicals and without producing large quantities of sludge containing pollutants. The apparatus comprises at least three light-transmitting tanks containing polluted water. The first tank contains photosynthetic bacteria; the second tank contains nonaquatic plants and a support for maintaining the plants at the surface of the water; and the third tank contains fish.

Abstract: A new right-hand, low register C-sharp key is provided for a saxophone, in addition to the conventional left-hand, low register C-sharp key. The saxophone may have the usual key shaft partially rotated by the conventional left-hand C-sharp key in order to open the low register C-sharp key on the saxophone. A new key is provided to be actuated by the little finger of the right-hand, which when actuated will open the same low register C-sharp valve, so that such valve may be actuated alternatively by either the right-hand or left-hand little finger. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.