A mineral recovery system for use in a mining operation is described. The mineral recovery system includes a mining operations model generated based on inputs of sensed conditions, wherein the mining operations model incorporates a thickener sub-model and a material sub-model. The mineral recovery system includes a thickener controller to issue commands based on the mining operations model. The mineral recovery system includes a thickener having a process water. The thickener also includes an underflow output provided with an underflow controller to adjust outflow of thickened slurry from the thickener based on issued commands. The thickener further includes an overflow output to dispense clarified water from the thickener.

A method of treating a landfill leachate containing ammoniacal nitrogen and phosphate by mixing with seawater to precipitate magnesium ammonium phosphate (MAP) also known as struvite. Effects of pH, temperature, stirring speed, and magnesium to ammonia molar ratio on leachate properties such as COD, ammoniacal nitrogen, phosphate content, color, turbidity, amount of magnesium, iron and zinc are disclosed. The method provides high removal efficiency for removal of ammoniacal nitrogen, phosphate, COD, color and turbidity. The method provides a cost-effective system for treatment of landfill leachate and recovery of MAP.

The invention relates to a program-controlled apparatus (1) for washing items that is equipped with a water purification system (8) for purifying the wash liquor by removing detergent and suspended soil, which purification system (8) utilizes addition of flocculant, wherein the amount of flocculant that is added is controlled to minimize the total amount of flocculant used without compromising the efficacy of the purification treatment.

An auto jartest analyzer includes a plurality of water sample reaction equipment, coagulant providing/controlling equipment and a coagulant concentration analysis device. The coagulant providing/controlling equipment provides coagulant of different concentration to the plurality of water sample reaction equipment to allow contaminants in a water sample of the water sample reaction equipment to precipitate. The coagulant concentration analysis device analyzes turbidity measurements for the plurality of water sample reaction equipment and determines if they meet predetermined analysis criteria, so as to figure out an optimal concentration of coagulant currently required to be added to the water sample. This thus achieves automatic analysis of an addition concentration of coagulant to be added to the water sample, which not only improves operational efficiency but also makes the analysis result more accurate.

The water treatment device includes: a coagulation reaction tank into which the water to be treated is introduced; a coagulant supply unit that supplies the coagulant; a floatation separation tank that makes the agglomerates float on the upper layer of the treated water to perform solid-liquid separation; and a coagulant addition amount adjustment device which adjusts the addition amount of the coagulant from the coagulant supply unit and adds the coagulant to the coagulation reaction tank. The coagulant addition amount adjustment device includes: a detection part for detecting the turbidity of the treated water inside the floatation separation tank; and an adjustment part for adjusting, on the basis of the detection value of the detection part, the amount of the coagulant added to the water to be treated. A detection unit of the detection part is installed inside the floatation separation tank.

Various techniques are provided in relation to flocculation and/or dewatering of thick fine tailings, with shear conditioning of flocculated tailings material in accordance with a pre-determined shearing parameter, such as the Camp Number. One example method of treating thick fine tailings including dispersing a flocculant into the thick fine tailings to form a flocculating mixture; shearing the flocculating mixture to increase yield stress and produce a flocculated mixture; shear conditioning the flocculated mixture to decrease the yield stress and break down flocs, the shear conditioning being performed in accordance with the pre-determined shearing parameter to produce conditioned flocculated material within a water release zone where release water separates from the conditioned flocculated material. The conditioned flocculated material can then be subjected to dewatering, for example by depositing, thickening or filtering. The design, construction and/or operation of a flocculation pipeline assembly can be facilitated.

A system for treating metal-contaminated wastewater includes a primary treatment sub-system, a secondary treatment sub-system, and a tertiary treatment sub-system. The tertiary treatment sub-system includes a reactor tank, a source of ballast material, a source of coagulant, a solids-liquid separator, and a controller configured to recycle ballasted solids from the solids-liquid separator to the reactor tank an amount sufficient to generate metal hydroxide floc in the reactor tank to reduce a concentration of dissolved metal in the reactor tank.

The present invention relates to a method of monitoring and optionally controlling removal of microplastics from microplastic containing raw water, drinking water, storm water, water originating from melted snow, surface water, effluent of industrial wastewater treatment plants, effluent of municipal wastewater treatment plants, industrial process water, using at least one coagulant and/or polymer, wherein the number of microplastic particles of the microplastic containing water before and/or after addition of said at least one coagulant and/or polymer is determined by using an optical measurement measuring light scattering and fluorescence of particles in a predetermined volume of the microplastic containing water.

The present invention relates to a method of evaluating and optionally selecting a suitable chemistry for removal of microplastics in a liquid matrix, said method comprising using at least one coagulant and/or flocculant and measuring fluorescence intensity and light scattering intensity of any particles in a sample volume of clarified liquid matrix by an optical measurement.

According to one or more embodiments, sulfate ions may be removed from seawater to form an injection fluid by a method including passing the seawater and formation water to a mixing tank. The seawater may comprise sulfate ions. The formation water may comprise barium ions. The seawater and formation water may be passed to the mixing tank in a ratio determined by a computerized geochemical model. The method may further include mixing the seawater and formation water to form a mixed fluid and passing the mixed fluid to a clarifier, where a barium sulfate precipitate may be formed and at least a portion of the barium sulfate precipitate may be separated from the mixed fluid. The method may further include passing the mixed fluid to a microfiltration system, where at least a portion of the barium sulfate precipitate may be removed from the mixed fluid to form an injection fluid.