This invention relates to compositions and methods for the at least partial dissolution, disruption and/or removal of deposits, such as scale and other deposits, from heat exchanger components. The heat exchanger components can include pressurized water reactor steam generators. The pressurized water reactor steam generators can be in a wet layup condition. The compositions include elemental metal and complexing agent selected from the group consisting of sequestering agent, chelating agent, dispersant, and mixtures thereof. The methods include introducing the compositions into the heat exchanger components.

Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.

Disclosed herein is an oil dispersant composition that contains an acyl amino acid ionic liquid, a dicationic ionic liquid, a fruit acid ionic liquid, a polyacid ionic liquid, and an ethoxylate oleyl ether ionic liquid. The composition may also be diluted with water. The composition is useful for dispersing an oil spill in a body of water, while being less toxic to the aquatic environment and also acting to stimulate bacterial growth in said aquatic environment.

A synergistic microbicidal composition comprising a non-ionic surfactant and glutaraldehyde and a method for inhibiting the growth of microorganisms in an aqueous medium.

A synergistic microbicidal composition comprising a non-ionic surfactant and glutaraldehyde and a method for inhibiting the growth of microorganisms in an aqueous medium.

Methods and systems are provided for producing ionized alkaline solutions (e.g. ionized alkaline water) that exhibit long-term stability when stored at room temperature.

The present invention relates to an optimised composition for reducing water evaporation and for preventing and/or N delaying the growth of microalgae, which is an organic microlayer comprising one or more hydrophobic-chain amphiphilic molecules and a biodegradable volatile organic solvent. In addition, the invention relates to a method for reducing water evaporation and for preventing and/or delaying the growth of microalgae, by applying said composition to aqueous surfaces.

Methods and kits for the removal of organic contaminants from contaminated samples are generally provided. In some embodiments, the methods and kits comprise a surfactant and adsorbent particles.

Disclosed are magnetic nanoparticles and methods of using magnetic nanoparticles for selectively removing biologics, small molecules, analytes, ions, or other molecules of interest from liquids.

Iron contaminants are removed from hydrocarbon oils, and from produced water or flowback water by-products of oil and gas production, by treatment of such liquids with a composition comprising a two-tail lipid compound. The lipid binds iron to form a lipid/iron phase in the liquid, which is then removed to provide a liquid with a reduced iron level.