Glycolipid-heavy metal ion complexes, compositions useful for forming glycolipid-heavy metal ion complexes, and methods for separating metal ion(s) from a sample using glycolipids are described herein.

The current method relates to the use of a composition comprising a non-ionic surfactant and an ionic polymer in papermaking processes. The compositions are useful inter alia as retention aids and/or drainage aids when added to cellulosic suspensions.

The present invention provides improved methods for purifying and/or removing multiply charged cations and suspended solids from water. In particular the process relates to an additive composition that has the appropriate surfactant characteristics for effectively removing multiply charged cations and suspended solids from an aqueous or oil/aqueous mixed phase via foam fractionation. According to the invention, a hydrophobically modified polymer that acts as an associative thickener is used in the presence of a source of alkalinity or anionic reactant as well as surfactant in appropriate ratios to facilitate multiply charged cation and suspended solids removal for water purification in any of a number of commercial, environmental and industrial applications.

Processes for the separation of water from a mixture of water with other components, comprising the following steps: A) providing feed material FM comprising water and at least one a nonionic surfactant S in an amount of 0.1 to 1000 ppm by weight based on the feed material FM, B) subjecting said feed material FM to a distillation step using a falling film evaporator.

Device and process for continuous recycling of wash water, so that water consumption is reduced in conventional personal wash, especially in a shower. The device comprises a surfactant detector (2), a flocculation tank (4), a water tank (5) for cleaned water and a bypass valve (3), wherein the flowpath shifts directly to the water tank (5) by means of the valve (3) bypassing the flocculation tank (4), in the absence of a surfactant in the flowpath.

Dewatering agents and methods of dewatering wastewater slurries are provided. Also disclosed are methods for improving the separation of solids from water. The water may be produced water, raw water, or wastewater, for example. The dewatering agents can be in solutions and the dewatering agent solutions may include various components in addition to soy protein, soy flour or a combination of soy flour and soy protein.

Provided are compositions comprising: (a) compound of formula (I):

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and (b) a compound of formula II:

##STR00002##

These compositions are NanoNets and generally comprise a surfactant of formula (I) and a polymer of formula (II). These NanoNets may be used in the treatment of aqueous solutions and more particularly may be used for the removal of boron from aqueous solutions.

The invention relates to the use of a composition comprising a non-ionic surfactant and an ionic polymer and method of preparation of the composition. The compositions are useful inter alia as flocculation auxiliaries for solid-liquid separation processes, for example in sludge dewatering/waste water purification and as retention aids or other additives in paper manufacture.

A method for using foam fractionation to remove a PFAS contaminant from a water source is disclosed herein. The method includes providing a feed stream to an inlet of an active column, where the feed stream comprises the PFAS contaminant and water; introducing the feed stream into an interior of the active column; flowing gas through an active column into the interior of the active column; rising gas through the feed stream in the interior of the active column to form gas bubbles in the feed stream; forming a foam layer; passing the purified stream into a next column; continuously perform foam fractionation until the feed stream becomes a cleaned stream; collecting the foam layer; and disposing of the foam layer.

A method for using foam fractionation to remove a PFAS contaminant from a water source is disclosed herein. The method includes providing a feed stream to an inlet of an active column. The method also includes introducing the feed stream into an interior of the active column. The method also includes flowing gas through an active column into the interior of the active column. The method also include rising gas through the feed stream in the interior of the active column to form gas bubbles in the feed stream. The method also includes forming a foam layer. The method also includes, in instances where insufficient foam is generated due to depletion of surfactant in the earlier columns, adding additional surfactant through ports located in various columns throughout the system to ensure the presence of sufficient surfactant in all columns and optimize the volume of foam produced in each stage.