A method and an arrangement for removing amine(s) from a thickener overflow of a mineral processing plant. The method includes supplying the thickener overflow to an electrocoagulation unit and subjecting the thickener overflow to electrocoagulation in order to separate at least some of the amine(s) as an electrocoagulation overflow and in order to form a residual process water as an electrocoagulation underflow, and removing the electrocoagulation overflow. The method is free of all of the following: a coagulant, a flocculant, an adsorbent and an additional flotation chemical.

The present invention provides new techniques related to magnetically controllable and/or steerable froth for use in separation processes of mineral-bearing ore and bitumen. Apparatus is provided featuring a processor configured to contain a fluidic medium having a material-of-interest and also having a surfactant with magnetic properties so as to cause the formation of a froth layer that contains at least some of the material-of-interest and is magnetically responsive; and a magnetic field generator configured to generate a magnetic field and provide non-mechanical mixing and steering/driving of the froth layer in the processor. The material-of-interest may be mineral-bearing ore particles or bitumen. The processor includes a flotation tank, a primary separation vessel (PSV), or a pipe, including a tailings pipeline. The pipe has a non-magnetic pipe section, and the magnetic field generator includes a magnetic coil arranged in relation to non-magnetic pipe section to generate the magnetic field and provide the non-mechanical mixing and steering/driving of the froth layer in the pipe.

A granular litter cleaning apparatus comprises a separation system having a separation tank adapted to receive a mixture of granules and plastic litter, and water therein, the separation tank having a top opening, and a closeable bottom outlet, and at least one water inlet for feeding water to the separation tank. A collect subsystem is for conveying a mixture of granules and plastic litter to the separation tank. A pump system is in fluid communication with the water inlet. The pump system is operated to raise a level of water in the separation tank to skim water with plastic litter out through the top opening of the separation tank. The closeable bottom outlet is openable to empty the separation tank from granules decanted in a bottom of the separation tank. A process for separating plastic litter from granules is also provided.

An apparatus for removing mineral particles from loaded engineered collection media includes one or more solvents with sufficiently low surface tension. The engineered collection media are made of a synthetic material and have a surface coated with a hydrophobic material to provide a chemical bond between the mineral particles and the surface. The solvents together with a releasing mechanism are arranged to disrupt the chemical bond. Preferably, a surfactant or a nonionic surfactant is also added to the solvents.

Apparatus uses engineered collection media to recover mineral particles in a mineral extraction process, e.g., for processing a tailings stream at the end of a flotation separation process. The engineered collection media are added to slurry/tailings containing the mineral particles. The engineered collection media have collection surfaces coated with a chemical selected for attracting the mineral particles to the collection surfaces so the engineered collection media becomes mineral laden media in the slurry/tailings in a loading stage. The apparatus include three stages: removing unwanted material from mineral laden media; using a stripping agent to strip the mineral particles from the mineral laden media; and separating the engineered collection media from the mineral particles and the stripping agent. The stripping agent is reused for stripping, and the engineered collection media are returned to the loading stage. The engineered collection media can have a smooth or foam-like surface.

An apparatus (40) for deaerating a froth comprising a spinning basket (44) mounted on a driven shaft (46). The side walls of the spinning basket have a mesh or openings therein. Froth is supplied to the interior of the spinning basket and contacts the floor of the spinning basket and is flung outwardly through the mesh or openings to break the bubbles and deaerate the froth. A solid all (42) may surround the spinning basket to further assist in deaeration. A spinning plate may be used in place of the spinning basket. In another embodiment, vacuum is used to deaerate the froth.

A method and enhancements for the decontamination of water containing one or more PFAS contaminants includes introducing a foaming agent into the water, and injecting a gas through a diffuser and into the water so as to form a plurality of bubbles in the water, the one or more PFAS contaminants accumulating on the plurality of bubbles. The plurality of bubbles is allowed to rise, forming a foam at the surface of the water. The resulting foam is then collected and transported away from the surface of the water, where it condenses into a liquid and is treated to regulatory standards.

“VINASSE TREATMENT PROCESS BY FLOTATION IN FLOW”, more precisely, it is a vinasse treatment process, by high performance flowing flotation system in industrial plants' facilities, resulting in obtaining concentrated vinasse sludge and treated vinasse, being said process comprised by vinasse treatment, which consists of treatment steps performed inside flotation tank, which comprises succession of coagulation systems and basins, flocculation, combined with aeration and oxygenation, in addition to a system of nano and micro bubbles in flotation basin, in which vinasse naturally flows into its storage tank, being said process results in formation of surface sludge and treated vinasse.

The present invention relates to apparatus for simultaneous grinding and froth flotation of at least one crude mineral and/or pigment, a process carried out in the apparatus for manufacturing at least one ground mineral and/or pigment, use of the ground mineral and/or pigment bearing phase obtainable by the process in paper applications as well as in paper, plastics, paints, coatings, adhesives, sealants, food, feed, pharma, concrete, cement, cosmetic, water treatment and/or agriculture applications, preferably in a wet end process of paper machine, in cigarette paper, board, and/or coating applications, or as support for rotogravure and/or offset and/or ink jet printing and/or continuous ink jet printing and/or flexography and/or electrophotography and/or decoration surfaces and the ground mineral and/or pigment bearing phase or ground mineral and/or pigment obtainable by the process.

A wide-size-fraction flotation system and process includes feeding coal slime to be floated into a stirrer, adding water to the floating coal slime in the stirrer, stirring, then feeding same into a grading cyclone through a first feeding pump for pre-grading; after grading of the coal slime in the grading cyclone, feeding overflow in the grading cyclone into a flotation column through a second feeding pump for flotation, discharging flotation tailings through an underflow port of the flotation column, collecting flotation concentrates through an overflow port of the flotation column and feeding same into a bubble generator through a fourth feeding pump, and the flotation concentrates passing through the bubble generator and being fed from the bottom of a hydraulic flotation machine; and feeding underflow in the grading cyclone into the hydraulic flotation machine through a third feeding pump, for flotation and recovery.