Abstract: A method and apparatus for producing liquified Alternative Supplemental Cementitious Material (ASCM) from an uncured concrete slurry. Uncured concrete slurry is received into a receiving hopper, diluted with water, and pumped upward through a slurry discharge conduit to an aggregate separator that screens the gravel and sand for separate discharge. The remaining ASCM entrained water flows into a holding tank. The ASCM settles to the lower portion of the holding tank. The holding tank stores the remaining water for re-use diluting uncured concrete slurry. The ASCM is liquified and moved towards the ASCM discharge port by an agitator system located in the bottom of the holding tank. From the discharge, a pump delivers the liquified ASCM through a conduit for discharge. The discharged ASCM can be used as a partial replacement for Ordinary Portland Cement and as an ingredient in flowable fills.

Abstract: A process of separating a fluid and mill scale particles from mill slag can include: 1) Putting the mill slag onto a vibrating screen device which has a plurality of screen assemblies in a sequential configuration. Each screen assembly comprises a screen having a perforated center portion with elliptically shaped perforations with a span of no greater than 0.175 inches. 2) Vibrating each screen assembly to expedite separation of the mill scale particles and the fluid from the mill slag on each screen such that the fluid separated from the mill slag on each screen passes through the perforations and the mill scale particles convey along the screen. 3) Conveying the mill scale particles from a screen assembly that is sequentially before to a screen assembly that is sequentially after for further separating the fluid from the mill scale particles.

Abstract: A system for generating electric energy from renewable energy sources such as waves includes a plurality of generator aggregates (4a-6c) arranged in the sea and a plurality of switchgears (1a-1c) arranged in the sea. Each switchgear (1a-1c) is connected to a plurality of the generator aggregates (4a-6c). A plurality of primary intermediate stations (17a-17c) are respectively connected to a plurality of the switchgears, and a secondary intermediate station (19) is connected to a plurality of the primary intermediate stations (17a-17c). The secondary intermediate station is also connected to a land based electric network. Switching means (192) is present for allowing selective connection to various locations (193, 194, 195) in the electric network.

Abstract: A precious metal recovery system utilizing an amalgamation process which results in substantially complete recovery both of the precious metal sought and of the mercury utilized in the process. Mercury has undesirable health and environmental characteristics and the system of the invention assures its substantial containment. In the operation of the system, ore is classified and sorted out into a plurality of bins or holds containing ore having a substantially uniform particle size. The ore is then delivered, bin by bin, beginning with the smallest particle size, to apparatus which assures substantially complete amalgamation of all of the precious metal present in the ore. Thereafter, a resulting slurry of water and tails is first removed from the amalgamation apparatus and any residual mercury removed before its return to the environment.

Abstract: In a gravity flow amalgamator an elongated upright housing is provided with a removable bottom end tray containing a bath of mercury for collecting gold. A pair of partition walls extend inward and downwardly in parallel relation transversely of the housing to form a water channel downstream tortuous path characterized by return bends with each wall of the pair of walls respectively attached to the inner surface of the housing opposing side walls intermediate their height to define fluid compartments at opposite sides of the housing. The water channel discharges the water into one of the fluid compartments.