In order to meet the objective of providing a device (10) and a method for a sediment transfer in waters (80, 81, 90) that works efficiently, a device (10) comprising at least one suction line (12) and at least one receiving means (16) for receiving sediment (70), and furthermore, having at least one pressure line (14) for transferring the received sediment (70) is proposed. Following the at least one receiving means (16), at least one pump device (18) and at least one measuring device (20) for determining a sediment concentration of the received sediment (70) are arranged. The device (10) further comprises a control unit (22) having a first interface (25) for inputting target values (24) and a second interface (26) for the at least one measuring device (20), and determines a sediment concentration in the at least one suction line (12) and/or in the at least one pressure line (14). Depending on the sediment concentration, a power of the pumping device (18) is adjustable.

A method and system of treating wetland areas includes collecting a slurry that includes sand/large particulates, water, and fines. The sand/large particulates are separated from the water and fines of the slurry. The sand/large particulates is preferably returned to a waterway or beach reclamation project. The water and fines are directed for application to wetland areas.

An annulus excavation tool that would surround the decayed pole or pile and hydraulically excavate the annulus around the pole down to −2.0′ via a jetting manifold. A vacuum/tremie manifold is selectively coupled to a vacuum source to remove the soil and decayed material and creating a bonding surface for the mortar. The annulus tool would then be coupled to the mortar source and raised while a UHPC mortar would be tremied into the tool for delivery into the annulus. When the tool reaches ground level the rest of the pour is done using a Sonotube or other temporary form. This mortar encasement not only makes up for the structural deficiencies but also isolates the pole from both air and water which then kills the existing fungi and insects while also preventing any future invasion.

A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes. The complex preferably has a controlled public access, thereby allowing entrance upon payment of a fee.

An annulus excavation tool that would surround the decayed pole or pile and hydraulically excavate the annulus around the pole down to −2.0′ via a jetting manifold. A vacuum/tremie manifold is selectively coupled to a vacuum source to remove the soil and decayed material and creating a bonding surface for the mortar. The annulus tool would then be coupled to the mortar source and raised while a UHPC mortar would be tremied into the tool for delivery into the annulus. When the tool reaches ground level the rest of the pour is done using a Sonotube or other temporary form. This mortar encasement not only makes up for the structural deficiencies but also isolates the pole from both air and water which then kills the existing fungi and insects while also preventing any future invasion.

A street and road surface penetration removal system for utility repairs and replacement. The penetration and removal system utilizes a circular disk pavement cutter and remover with a retainment box placement for vacuum excavation using high pressure water excavation and vacuum removal by a self-contained excavation vacuum to gain clear access to a utility for repair or replacement.

A street and road surface penetration removal system for utility repairs and replacement. The penetration and removal system utilizes a circular disk pavement cutter and remover with a retainment box placement for vacuum excavation using high pressure water excavation and vacuum removal by a self-contained excavation vacuum to gain clear access to a utility for repair or replacement.

The disclosure relates to a suction generation device for the removal of matter from a submerged surface, including: a housing including a fluid inlet, a suction inlet, an expulsion outlet, and defining a cavity therein; the fluid inlet being configurable to direct a supply of fluid into the cavity and to establish a flowpath from the fluid inlet to the expulsion outlet, the flowpath extending through the cavity, and fluid flow in the flowpath generating a reduction in pressure at the suction inlet to generate a flow of fluid therethrough and into the flowpath; and the fluid inlet includes an array of inlet fluid ports. The disclosure further relates to an operation apparatus for the suction generation device and a method for the removal of matter from a submerged surface.

A collection tank for use in a vacuum operated earth reduction system, the collection tank comprising a closed first end, an open second end defining a tank sealing flange and a body extending between the closed first end and the open second end. An internal chamber defined by the body, the closed first end and the open second end has a door coupled to the open second end and is configured to releasably seal the open second end. An automated door closer is coupled to a center of the door, wherein the automated door closer provides a closing force at the center of the door so that the closing force is equally distributed about a periphery of the door to seal the door against the tank sealing flange.

A cutter head arranged to rotate about an axis of rotation for removing material from a water bed comprises a base ring positioned respect to the axis of rotation; a hub positioned with respect to the axis of rotation; a plurality of arms extending between the base ring and the hub, the arms comprising a plurality of cutting tools; and a plurality of skirts, each skirt extending from one of the plurality of arms to the hub to form a closed surface between the arm and the hub from a distal end of the cutter head toward the base ring and ending with a side configured to be parallel to a backplate, leaving an open channel between the skirt and the backplate.