Abstract: Apparatus to treat pollution in rivers, streams, lakes, bays, ports and all bodies of water, employing as methodology wetland plants or macrophytes growing atop a wire or rigid frame basket filled with polygons or other irregular shaped objects of various configurations. The root system of the macrophytes are merged with and grow down amid the substrate composed of small polygons, other irregular shaped hollow, plastic, ceramic objects or other materials. The substrate provides nutrients, oxygen and sanctuary to bacteria, thereby reducing and eliminating pollutants in all bodies of water.

Abstract: Apparatus to treat pollution in rivers, streams, lakes, bays, ports and all bodies of water, employing as methodology wetland plants or macrophytes growing atop a wire or rigid frame basket filled with polygons or other irregular shaped objects of various configurations. The root system of the macrophytes are merged with and grow down amid the substrate composed of small polygons, other irregular shaped hollow, plastic, ceramic objects or other materials. The substrate provides nutrients, oxygen and sanctuary to bacteria, thereby reducing and eliminating pollutants in all bodies of water.

Abstract: A barrel-shaped manhole frame for receiving a manhole cover is provided with an inwardly directed peripheral flange at its lower end having circumferentially spaced inclined grooves to receive wedges that can be driven in situ into surrounding earthwork to wedge the frame upwardly and thereby adjust its height and slope to conform with a roadway or sidewalk surface under construction.

Abstract: An apparatus for treating waste water including a waste water basin and a number of wetland plants in floating containers adapted to float on the surface of waste water in the waste water basin such that the root systems of the wetland plants treat the waste water. The floating containers are constructed so that they retain soil and/or another particulate solid required to sustain and nourish the wetland plants and also so that they permit the root systems of the wetland plants to grow outwardly into the waste water to be treated. The root systems produce aerobic zones within the waster water in the waste water basin. The extent of the growth of the root systems is controlled, preferably by an adjustable platform associated with each floating container, so that the aerobic and anaerobic zones within the waste water basin are controlled and can be adjusted or varied as required.