An environmental waste water filtering system, including a bucket, the inside of which tapers into a funnel portion that leads to a strainer. The funnel has an exit tube that extends 3 inches below the bucket wall and may be inserted into a drain such as a toilet drain pipe. The inside of the bucket and funnel portion forms a fluid debris chamber. When fluid containing particulate matter is poured into the fluid debris chamber, the particulate matter is removed from the fluid portion as the fluid passes through the strainer and then into the toilet drain pipe. Once all fluid drains from the fluid debris chamber, the captured debris may be poured into a trash bag and disposed of. Optionally, a disposable straining filter bag may be positioned in the fluid debris chamber so that even finer particulate matter is removed from the fluid for disposal with the bag.

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene oxide polymers, in particular a mixture of one or more high molecular weight polyethylene oxide polymer and one or more ultra high molecular weight polyethylene oxide polymer. Said mixture of polyethylene oxide polymers is useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

The invention relates to a method for treating an aqueous suspension of solid mineral particles arising from the extraction of ores, comprising the following steps: a soluble polymer is prepared in water, comprising: at least one non-ionic monomer, selected from the group consisting of acrylamide; methacrylamide; N-monoderivatives of acrylamide; N-monoderivatives of methacrylamide; N,N-derivatives of acrylamide; N,N-derivatives of methacrylamide; acrylic esters; methacrylic esters; N-vinylformamide; and N-vinylpyrrolidone; at least one anionic monomer representing between 10 and 70 mol %, selected from the group consisting of monomers having a carboxylic functional group and salts thereof; monomers having a sulphonic acid functional group and salts thereof; monomers having a phosphonic acid functional group and salts thereof; at least one cationic monomer representing between 0.2 and 6 mol %, selected from the group consisting of diallyl dimethylammonium chloride, methacrylamidopropyltrimethylammonium chloride and acrylamidopropyltrimethylammonium chloride; adding said soluble polymer into the water having the aqueous suspension of solid particles. This method is particularly useful for treating residues resulting from the extraction of bituminous sand.

An apparatus and method for automated decantation of multi-phase fluid is disclosed. The apparatus for two phase fluid comprises a fluid line assembly, a floating marker, a sensor, an actuator assembly and a control board. The fluid line is attached to a reservoir containing the multi-phase fluid, comprising an inlet and two outlets. A three-way valve is disposed between the inlet and the two outlets. The floating marker is disposed within a cylindrical frame mounted within the reservoir. The selective density of the float marker is selected between the density values of two fluids in the multi-phase fluid. The float-marker floats between the two fluid phases due to the density of the float marker and fluid. The actuator assembly, configured to operate inlets and outlets of the fluid line. The number of outlets, sensor, and floating marker increases with the number of phases of fluid.

Various examples related to electrokinetic dewatering (EKD) of suspensions such as, e.g., phosphatic clay suspensions are provided. In one example, a system for continuous EKD includes cake dewatering unit having a lower conveying belt extending across a dewatering chamber; an upper conveying belt extending across at least a portion of the dewatering chamber; and a sludge inlet configured to supply a sludge suspension on the first end of the lower conveying belt. The conveying belts can extend across the dewatering chamber at an angle. Rotation of the conveying belts draws the sludge suspension through an electric field where the sludge suspension is dewatered. The electric field can be established between an upper anode and a lower cathode. The upper and lower conveying belts can include the anode and cathode. A suspension thickening unit can provide a thickened sludge suspension the cake dewatering unit for enhanced dewatering.

To treat organic sludge while keeping facility costs, cement production efficiency, and a reduction in clinker production amount to a minimum. An organic sludge treatment device includes: a fractionation device 7 that fractionates a preheated raw material R2 from a preheater cyclone 4C excluding a bottommost cyclone of a cement burning device 1; a mixing device 8 that mixes an organic sludge S with the fractionated preheated raw material, and that dries the organic sludge using sensible heat of the preheated raw material; and a supply device (mixture chute 12, double-flap damper 13, shut damper 14) that supplies a mixture M from the mixing device to a calciner furnace 5 of the cement burning device or to a duct disposed between a kiln inlet portion of a cement kiln 2 and the calciner furnace. The treatment device may be provided with an introduction device for introducing an exhaust gas G2 including dust, odor and water vapor from the mixing device to a gas outlet of a bottommost cyclone 4A of the cement burning device.

The invention provides methods and compositions for treating wash water from concrete production with carbon dioxide. The treated wash water can be reused as mix water in fresh batches of concrete.

A method/system for sequestering carbon dioxide from cement and lime production facilities wherein carbon dioxide from flue gases originating from cement or lime production facilities is recovered and transported to a building materials production facility where it is sequestered.

A method of treating water in a water treatment system after a replacement of an ion exchange bed includes introducing water to be treated into the ion exchange bed of the water treatment system to produce treated water, calculating a current exchange daily average flow rate of water through the water treatment system, calculating a cumulative daily average flow rate of water through the water treatment system, and determining an estimated number of days remaining to exhaustion of the ion exchange bed based on the current exchange daily average flow rate and the cumulative daily average flow rate.

An environmental waste water filtering system, including a bucket, the inside of which tapers into a funnel portion that leads to a strainer. The funnel has an exit tube that extends 3 inches below the bucket wall and may be inserted into a drain such as a toilet drain pipe. The inside of the bucket and funnel portion forms a fluid debris chamber. When fluid containing particulate matter is poured into the fluid debris chamber, the particulate matter is removed from the fluid portion as the fluid passes through the strainer and then into the toilet drain pipe. Once all fluid drains from the fluid debris chamber, the captured debris may be poured into a trash bag and disposed of. Optionally, a disposable straining filter bag may be positioned in the fluid debris chamber so that even finer particulate matter is removed from the fluid for disposal with the bag.