Abstract: A screw press for separating liquid from a solid-liquid mixture includes a casing having inlet and outlet sections, and a filter section there between. The filter section includes an axially extending stack of coplanar filtration plates defining a core passage for receiving a screw configured to convey the solid-liquid mixture from the inlet section to the outlet section while compressing and dewatering the solid-liquid mixture by forcing at least part of the liquid content of the mixture to be expelled out of the casing through inter-plate gaps defined between each pair of adjacent filtration plates. The filtration plates are fixed relative to one another and clamped in direct intimate face-to-face contact by a clamping assembly operable for applying a predetermined axially clamping pressure substantially uniformly about the core passage. The inter-plate gaps are controlled by the surface roughness of the plates and the clamping pressure.

Abstract: The present invention relates to compositions and methods for the remediation of contaminated solids and liquids. In particular, embodiments of the present invention relate to the bioremediation of solids and liquids by a composition comprising a biocatalyst or mixture of biocatalysts. The present invention also relates to methods for producing the bioremediation compositions and methods for applying the bioremediation compositions to contaminated sites, including treatment, storage, and disposal facilities, as well as various contaminated water sources, such as aquifers and reservoirs.

Abstract: The present invention relates to compositions and methods for the remediation of contaminated solids and liquids. In particular, embodiments of the present invention relate to the bioremediation of solids and liquids by a composition comprising a biocatalyst or mixture of biocatalysts. The present invention also relates to methods for producing the bioremediation compositions and methods for applying the bioremediation compositions to contaminated sites, including treatment, storage, and disposal facilities, as well as various contaminated water sources, such as aquifers and reservoirs.

Abstract: A compactor (1) including: a transporter (3); an impact tool (10); a lifting mechanism (9) capable of lifting the impact tool (10) to a raised position; a substantially elongate support mast (2) coupled to the lifting mechanism (9) and capable of supporting the raised impact tool (10), and a mast stabilisation system characterised in that the stabilising system is capable of adjusting the orientation of the support mast (2) to allow the impact tool (10) to descend substantially vertically from said raised position without the transmission of any lateral force by the tool (10) to the support mast (9).

Abstract: The present invention is related to a process for reducing solid waste volume and landfill mass. More particularly, the process of the present invention is directed to reducing organic waste with or without production and collection of a useful product. The process of the present invention involves supplying at least one oxidizing agent in the presence of an aqueous medium into organic materials. The oxidizing agent oxidizes and breaks down a portion of these materials. After addition of the oxidizing agent, at least one species of microorganism may be supplied into the channel and the microorganism consumes the oxidized organic material.

Abstract: A method for the disposal of sludge and collection of byproduct gases of decomposition uses a crisscross trenching pattern, excavated, filled and covered in a sequential and cyclic manner. Once the crisscrossing trenches have been completely filled with sludge, evolving gases are captured under an impermeable sheeting placed over the disposal site and then drawn off for use.

Abstract: A method of treatment of a contaminated material contaminated with an organic compound. The method includes treating the contaminate with a bioremediation step followed by a chemical oxidation step. The bioremediation step includes contacting the contaminate with a microbial consortium under conditions suitable for the consortium to mediate solubilization or biodegradation of the organic compound or chemical oxidation products thereof. The subsequent chemical oxidation step includes treating the bioremediated contaminate with: a transition metal in soluble form; a chelator of the transition metal, to form a transition metal:chelator complex; an oxidizing agent that provides a reactive free radical in the presence of the transition metal complex; and a buffering compound to maintain the pH in a neutral range. The reactive free radical initiates a chemical reaction with the organic compound to produce reaction products of the organic compound.

Abstract: A method and apparatus is used for covering the exposed workface of a landfill with a film. The apparatus includes a compactor rotatably mounted on a frame which is hitched to a tractor. A film, spray and ballast deployer is mounted on the end of the frame for spraying the landfill, deploying the film onto the landfill, and deploying the ballast onto the film. The compactor includes a roller which compacts the waste prior to spraying the landfill and deploying the film and serves as a wheel for the frame. Hydraulics are provided to raise and lower the deployer. In operation, the assembly is pulled by the tractor causing the compactor to compact the waste just prior to the deployer laying the film on the workface and the ballast being deposited onto the film. Additionally, the apparatus is capable of casing the overlapping layers of laid film to adhere to the ballast in between thereby forming a seal between the adjoining layers.

Abstract: A method for disposing of a fluid includes the steps of obtaining a fluid; positioning a well into a saturated soil; and pumping the fluid into the well whereby the fluid displaces saturated soil away from the well so as to form a fluid zone in the saturated soil for storing the fluid.

Abstract: A watering spray system offering a method for softening soil in preparation for compacting the soil with a vibrating compactor attached to the end of an articulated arm of a backhoe, or the like equipment. The system includes a water spray head secured to the end of the articulated arm of the backhoe in full view of the backhoe operator to apply water for moisturizing back fill soil for compacting, a shut-off valve for controlling the water applied, a flexible water supply line starting at the water supply tank, running under the backhoe cab, and along the articulated main boom and arm, ending at the spray head. A welded frame assembly positioned at the rear of the backhoe, for suspending the flexible water supply hose above the backhoe motor for viewing by backhoe operator to determine tension on the hose, preventing over-stretching and possible damage to the conduit during operation. The source of water may vary to maintain sufficient pressure at the spray head.