Abstract: A gas-water separation system may be used for removing water from a wet gas compressed in a water-injected contact-cooled gas compressor. The gas-water separation system may include a tank constructed to hold a quantity of water; a heat exchanger coupled to the tank and constructed to extract heat from the water to chill the water when the water is present within the tank; an inlet port constructed to inject a flow of the wet gas into the chilled water when the water is present within the tank, the chilled water being operative to condense water vapor from the wet gas and reduce the dew point of the wet gas to yield a chilled compressed gas; a biological control system constructed to suppress biological activity in the tank; and a discharge port operative to discharge the chilled compressed gas.

Abstract: A method is provided herein of dewatering a fly ash pond or pit, the method including: preparing one or more wellbores in, or in proximity to, the fly ash pond or pit; installing a riser pipe into a first of the wellbores, the riser pipe including a drain pipe having perforations formed therethrough, and a filter textile wrapped about the drain pipe so as to at least overlap the perforations, the filter textile being porous with openings having apparent opening size of 200 microns or less; and, generating negative pressure within the riser pipe so as to draw water from adjacent the first wellbore and through the filter textile. Advantageously, the method of the subject invention allows for the dewatering of a fly ash pond or pit with extraction of water therefrom which is visibly clear.

Abstract: The present disclosure relates to systems and methods for recovering mature fine tailings (MFT) from oil sands tailings ponds. Some examples include a hollow, fully enclosed around its perimeter, ideally of cylindrical form, open bottom structure (a hollow conduit), of predetermined geometry, which is placed at the pond surface. The hollow conduit can penetrate MFT deposits to or below a level at which MFT of required density is located. A width or diameter of the hollow conduit can be determined with respect to the MFT inflow velocity and the corresponding shear rate, so as to enable MFT flow into the hollow conduit at a rate matching a rate at which the MFT is removed from the pond (e.g., a recovery rate). An MFT fill level inside the hollow conduit can be kept constant and equal to a required fill level throughout MFT recovery operations. MFT can enter the hollow conduit during MFT recovery operations solely under action of hydraulic head pressure.

Abstract: A system for removing ammonia from landfill leachate comprising an economizer for producing high pressure hot water in a hot water circuit from heat exchange with a hot gas stream carrying waste heat; a boiler which is heated by the high pressure hot water to produce steam; and an ammonia stripper. The ammonia stripper has a leachate inlet connected to a leachate flow path, and an ammonia containing gas outlet. A leachate discharge outlet is connected to a leachate discharge flow path, and a steam inlet is provided which is connected to the boiler by a conduit. At a lower end of the ammonia stripper there is a forced air inlet. A randomly packed bed located between the upper end and the lower end. In use there is a flow of steam and air in one direction and of leachate in the opposite direction which releases ammonia from the leachate.

Abstract: A lagoon batch wastewater treatment system for a wastewater treatment lagoon wherein a containment tank expands and contracts during a sewage treatment process reducing erosion of the berm or bank of the lagoon.

Abstract: A solid dissolver system for the treatment of waste material in a waste water collection system. The solid dissolver system includes a housing. The housing includes a cover and a platform portion for receiving the cover. A cartridge containing agents for the treatment of waste material is disposed within the cover, the cover substantially surrounding and enveloping the cartridge, the cover including an opening. A water inlet is provided into the housing, the water inlet terminating at a spray means disposed proximate to or inside the cover opening, the spray means being capable of directing water at an exposed surface of the cartridge, the platform portion being capable of collecting any effluent from the water directed at the exposed surface of the cartridge by the spray means. A water outlet for channeling the effluent into a waste water collection system is included in the platform portion.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications and gas and crude oil drilling, pumping and production to reduce or eliminate contamination. In one embodiment, a method includes: an aqueous volume having an initial oxidant demand, an oxygen-containing oxidant and at least one chlorine oxide at substoichiometric amounts in an amount sufficient to eliminate the oxidant demand. The system includes: an aqueous treatment system comprising a containment system; at least one apparatus for introducing an oxygen-containing oxidant; and at least one apparatus for introducing at least one chlorine oxide into said containment system at controlled, substoichiometric quantities.

Abstract: A fluid drainage system configured for draining a basin impounding fluid and sediment, solids or the like of varying density and turbidity. The system includes a first conduit and a second conduit within or adjacent to the first conduit to form a fluid receiving chamber between the first and second conduits, each conduit having apertures therethrough, with the apertures of the first and second conduits being sized and arranged relative to one another and so configured as to preferentially discharge fluid from the top of a basin, thus providing flow conditions which inhibit the entry of sediment into the system so as to maximize the retention of sediment within the basin and reduce turbidity and Total Suspended Sediment in the discharged fluid.

Abstract: A wastewater treatment system is provided having a reactor, first and second bio media and an aeration system. The first bio medium is located proximate an inlet end of the reactor and extends vertically between a top water level and the reactor's floor. The second bio medium is located proximate an outlet end of the reactor and extends vertically between a bottom water level and the reactor's floor. The media are adapted for retaining solids within the reactor as clarified water is withdrawn after treatment. The first bio media is further adapted to act as a baffle thereby causing wastewater to flow generally uniformly into a primary reactor zone. The aeration system includes a plurality of diffusers, some of which may be located adjacent or underneath the bio media and are adapted for promoting the shaking the bio media when activated in order dislodge excessive biomass therefrom.

Abstract: The present disclosure relates to a method for controlling the microbiological properties of a portion of water within a large body of water by treating such zone with chemical agents, according to the temperature of the water, its salinity, its dilution power and the diffusion of chemicals within the large water body.

Abstract: A multi-chamber basin is sized to collect excess waste water exceeding the processing capacity of a sewage system. In order to disinfect the waste water exceeding the basin capacity, disinfectant is added at a point in the system after the first basin. After the rain event is over and there is excess sewage treatment capacity, the sewage treatment in the multi-chamber basin is returned to the sewage system. By not disinfecting the waste water in the first basin chamber, the overall disinfectant usage can be minimized.

Abstract: A method of enhancing flux of tailings settling pond water from an oil sands process through a membrane separation system and purifying the water comprising is disclosed. The process comprises the following steps: (a) treating the water with an effective amount of one or more water-soluble cationic polymers, amphoteric polymers, zwitterionic polymers, or a combination thereof; (b) passing the treated water through a membrane separation system; and (c) optionally, passing the permeate from step (b) through an additional membrane separation system.

Abstract: A system is provided to control fluid flow in a wastewater treatment system. The wastewater treatment system may include a wastewater treatment plant and a main that connects a plurality of pump stations to the wastewater treatment plant. Each of the plurality of pump stations may include a wet well and a pump carried by the wet well to pump the wastewater. The system may include a central server and a sensor in communication with the central server to sense a level of wastewater within the wet well. The pump may be moved to an on position when the level of the wastewater in the wet well is at or above a first level. The level of wastewater within the wet well may be systematically manipulated responsive to the central server to control the fluid flow in the wastewater treatment system.

Abstract: Devices, processes, systems, and articles of manufacture adapted to treat contaminated fluid, such as organic wastewater, are described. These are described to include lifting contaminated fluids, treating contaminated fluids, or both, through gas application. In certain designs, gas, such as pressurized air, may be used to lift contaminated fluids, such as organic wastewater (i.e., water having contaminating organics of some kind, e.g. residential septic wastewater). In certain designs, gas, such as pressurized air, may also be used to treat fluids interfacing with the gas.

Abstract: Devices, processes, systems, and articles of manufacture adapted to treat contaminated fluid, such as organic wastewater, are described. These are described to include lifting contaminated fluids, treating contaminated fluids, or both, through gas application. In certain designs, gas, such as pressurized air, may be used to lift contaminated fluids, such as organic wastewater (i.e., water having contaminating organics of some kind, e.g. residential septic wastewater). In certain designs, gas, such as pressurized air, may also be used to treat fluids interfacing with the gas.

Abstract: A fluid drainage system configured for draining a basin impounding fluid and sediment, solids or the like of varying density and turbidity. The system includes a first conduit and a second conduit within or adjacent to the first conduit to form a fluid receiving chamber between the first and second conduits, each conduit having apertures therethrough, with the apertures of the first and second conduits being sized and arranged relative to one another and so configured as to preferentially discharge fluid from the top of a basin, thus providing flow conditions which inhibit the entry of sediment into the system so as to maximize the retention of sediment within the basin and reduce turbidity and Total Suspended Sediment in the discharged fluid.

Abstract: A low cost method and system for treating water, which will be used in an industrial process, is provided. A system of the invention generally includes at least one containing means, at least one coordination means, at least one chemical application means, at least one mobile suction means, and at least one filtration means. The coordination means can control the necessary processes depending on the system needs (e.g., water quality or purity). The method and system of the invention purifies the water and eliminates suspended solids without the need of filtering the totality of the water volume, but only filtering a small fraction of up to 200 times less than the flow filtered by a conventional water treatment filtration system.

Abstract: A pond receives a flow of contaminated water into the pond substantially tangential to a volume of clarified water which is stored in the pond and which is largely quiescent. The tangential inflow overcomes a large rotational inertia in the stored volume of clarified water and establishes a slow spiral flow path about the periphery of the pond and inwards to a central outlet. The clarified stored water is discharged ahead of the inflowing contaminated water increasing the residence time of the contaminated water in the pond and permitting contaminants to receive at least partial treatment, such as settling of sediment, in the pond.

Abstract: A counter current supersaturation oxygenation method includes an apparatus, which includes a down flow tube, an upflow tube and a gas diffuser. The gas diffuser preferably includes a porous tube and a support frame. The porous tube is preferably wrapped in a spiral from a bottom of the support frame to a top of the support frame. A non-porous gas supply hose is connected to the porous tube. The gas diffuser is suspended inside the down flow tube at substantially a bottom thereof. One end of the upflow tube is connected to substantially a bottom of the down flow tube. A second embodiment of the apparatus preferably includes a down flow tube, the gas diffuser and a buoyant platform. A stream of liquid becomes oxygenated by passing down the down flow tube. The oxygenated liquid may flow up the upflow tube or down to any appropriate destination.

Abstract: A drip disposal system includes a fluid source including a pump for cyclically pumping fluid from the fluid source, a set of drip field lines connected to the fluid source for dispersing at least some fluid provided by the source across an area of ground, and a return line for returning fluid not dispersed by the set of drip field lines to the fluid source. A blow-out valve is connected to the return line for controlling fluid flow through the return line during each cycle, the blow-out valve opening when a pressure of the fluid flowing through the return line exceeds a selected minimum pressure and closing when the pressure of the fluid flowing through the return line goes below the selected minimum pressure.

Abstract: A filter sleeve is fabricated from a variety of media selected to preferentially remove particulates and specific contaminants from water or other liquids. The layers of the filter sleeve may be configured to remove 1-micron particulates, while another layer or layers may be configured to remove a range of petroleum hydrocarbons, fats, oils, and greases, while yet another layer may be configured to remove metals, and yet another layer could be configured to remove bacteria, algae, mold, and fungus. Filter sleeves that are configured to remove different particulate sizes and contaminants can be used simultaneously by placing the filter sleeves inside one another to accrue the capabilities of several individual filter sleeves as one unit. The filter sleeve can be used to remove particulates and hydrocarbons from waste water accumulated in underground vaults, enabling such waste water to be discharged directly into the ambient environment.

Abstract: A method of treating tailings comprising a solids fraction and a hydrocarbon fraction is disclosed. A primary flow is supplied to a jet pump, the primary flow comprising water and less than 20% solids by mass. A secondary flow is supplied to a mixing chamber of the jet pump, the secondary flow comprising a slurry of water and tailings, the slurry comprising more solids by mass than the primary flow. The jet pump is operated using the primary flow such that the tailings are agitated to effect at least a partial phase separation of the hydrocarbon fraction from the tailings. The methods disclosed herein may also be applied to treat tailings ponds.

Abstract: A system and method for remediating a body of water and collecting suspended and dissolved solids therefrom are provided. The system includes a water-impervious lining positionable in a depression in or adjacent a body of water. The lining and depression define a treatment vessel, which includes a treatment portion, an outlet portion for containing treated water, and an outflow weir between the treatment portion and the outlet portion. Water to be treated is transported from the water body to the treatment portion. An entrapment element is delivered and mixed into the transported water, the entrapment element for capturing suspended and dissolved solids in the transported water and effecting a separation between the captured solids and water cleansed therefrom. The captured solids can be removed from the treatment basin, and the cleansed water can move through a channel in the outflow weir into the outlet portion.

Abstract: Systems and methods for lowering levels of carbon dioxide and other atmospheric pollutants are provided. Economically viable systems and processes capable of removing vast quantities of carbon dioxide and other atmospheric pollutants from gaseous waste streams and sequestering them in storage-stable forms are also discussed.

Abstract: A wastewater treatment system capable of reducing or eliminating point discharge. The wastewater treatment system includes a wastewater treatment unit and a wastewater treatment lagoon in fluid communication with the wastewater treatment unit. The wastewater treatment lagoon can be located at a higher elevation than the wastewater treatment unit. The wastewater treatment lagoon can preferably be a combined evaporation/infiltration lagoon. A drip irrigation system can also be included around the periphery of the wastewater treatment lagoon and in fluid communication with the wastewater treatment lagoon.