A method and system for measuring and treating fluid streams having particles therein is disclosed. A sample of the fluid stream is obtained and processed to remove large particles, to obtain an aliquot of the fluid stream with some particles therein. A parameter in the aliquot is measured that relates to quantity and/or charge of the particles. The aliquot was found to be representative of the whole fluid stream, so when the parameter deviates from a desired value, this indicates that particles in the fluid stream require treatment. The method and system can further include treating the particles in the fluid stream until the measured parameter in the aliquot returns to the desired value.

A method of water treatment includes providing water that includes at least one contaminant. An effective amount of at least one filter media is added to the to the water that includes at least one contaminant. The water and the at least one filter media are agitated to form a homogeneous mixture. A cationic biopolymer is added to the homogeneous mixture of water and the at least one filter media. The water is separated from the at least one contaminant and the at least one filter media.

The invention relates to a novel sulfobetaine monomer and to a process for the preparation thereof, advantageously by reaction between a vinyl-amine compound and a vinyl-sulfonic acid compound, preferably in the presence of a solubilizing agent. The invention also relates to the (co)polymers obtained from this novel type of sulfobetaine monomer, and to the use thereof, for example as a flocculant, dispersing agent, thickening agent, absorbent agent or friction-reducing agent.

Various illustrative embodiments of a process for enhanced flocculation and clarification of produced water from oil and gas wells using nanoparticles are provided herein. Certain nanoparticles can increase the settling rate of solids in produced water when used alone or combined with certain conventional flocculents.

Various illustrative embodiments of a process for enhanced flocculation and clarification of produced water from oil and gas wells using nanoparticles are provided herein. Certain nanoparticles can increase the settling rate of solids in produced water when used alone or combined with certain conventional flocculents.

The present invention provides a flocculant for catalytic decomposition of flue gas desulfurization wastewater treatment. The flocculant includes polyacrylamide, inorganic polymer, and an inorganic compound with low molecular weight. In the condition of using proper components, the flocculant has significant wastewater treatment performance.

The present invention provides a flocculant for catalytic decomposition of flue gas desulfurization wastewater treatment. The flocculant includes polyacrylamide, inorganic polymer, and an inorganic compound with low molecular weight. In the condition of using proper components, the flocculant has significant wastewater treatment performance.

A belt system for a water treatment system comprising a flocculation tank. The flocculation tank is configured for receiving wastewater having one or more of unwanted waste solids, unwanted particulates, suspended solids via the ingress and for mixing the wastewater with a flocculating agent and magnetite within the flocculation tank. The belt system comprises a looped belt comprising a plurality of rare earth magnets. The first looped belt is mounted within an extraction portion of the flocculation tank. A first portion of the first looped belt is above a water level inside the flocculation tank. A second portion of the first looped belt is submerged in the flocculation tank. A first scraper is positioned proximate to the first looped belt that is above the water level. A container is below the first scraper and the first looped belt and above the water level. An auger is within the container.

A belt system for a water treatment system comprising a flocculation tank. The flocculation tank is configured for receiving wastewater having one or more of unwanted waste solids, unwanted particulates, suspended solids via the ingress and for mixing the wastewater with a flocculating agent and magnetite within the flocculation tank. The belt system comprises a looped belt comprising a plurality of rare earth magnets. The first looped belt is mounted within an extraction portion of the flocculation tank. A first portion of the first looped belt is above a water level inside the flocculation tank. A second portion of the first looped belt is submerged in the flocculation tank. A first scraper is positioned proximate to the first looped belt that is above the water level. A container is below the first scraper and the first looped belt and above the water level. An auger is within the container.

A method of removing barium, calcium, strontium, and magnesium from frac flowback. A sulfate reagent and carbonate reagent are mixed with the frac flowback, causing barium, calcium, strontium, and magnesium to precipitate. The precipitants are crystallized and the resulting frac flowback and crystals are separated into relatively heavy solids and a stream of relatively light solids. The stream of relatively light solids is subjected to a further separation process that produces sludge that is recycled to aid in the crystallization process and a treated effluent which is recycled to the fracking operation or collected and used in another fracking operation.