The invention relates to the use of a composition for the antimicrobial and/or antioxidative treatment of biofilms in water-containing liquids, comprising: (a) a micelle-forming solubilizate which comprises at least one plant extract, at least one emulsifier with an HLB number of 8 to 18, and water, and (b) at least one biodegradable antimicrobial agent selected from the group consisting of peroxides, including peroxycarboxylic acids and H.sub.2O.sub.2, hypochlorites, hypochlorous acid and a combination thereof.

Disclosed herein are graphene quantum dot tagged water source treatment compounds or polymers, and methods of making and using. Also described herein are tagged compositions including an industrial water source treatment compound or polymer combined with a graphene quantum dot tagged water source treatment compound or polymer. The tagged materials are tailored to fluoresce at wavelengths with minimized correspondence to the natural or “background” fluorescence of irradiated materials in industrial water sources, enabling quantification of the concentration of the water source treatment compound or polymer in situ by irradiation and fluorescence measurement of the water source containing the tagged water source treatment compound or polymer. The fluorescence measurement methods are similarly useful to quantify mixtures of tagged and untagged water source treatment compounds or polymers present in an industrial water source.

The present disclosure is related to systems and methods for the biological processing of hydrocarbon-containing substances. In particular embodiments, the systems and methods herein relate to pre-digestion of hydrocarbon containing substances and further processing of the same to produce hydrocarbon fuels, fertilizer, and other products.

A method of controlling and removing biofilm on a surface in contact with an aqueous industrial system comprising the step of adding an effective amount of biofilm-disrupting agent and adding a biocide to the aqueous system being treated to reduce and remove biofilm forming microbes from a surface in contact with the aqueous system is disclosed. Also disclosed is a synergistic composition of polyethyleneimine and an oxidizing biocide.

Provided herein are compositions and methods that can remove, metabolize, or degrade a hydrocarbon in an area that is contaminated by hydrocarbons. Methods for bioremediation of an area such as an area of land, a body of water, or a shoreline that are contaminated by a hydrocarbon, such as from a crude oil spill are also described. The compositions and methods described herein can be used on natural flora and fauna as well as manmade materials that are contaminated by a hydrocarbon.

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 are the methods of using di-cationic or di-anionic compounds, which are derived from primary amine through an aza-Michael addition with an activated olefin, in a corrosion control composition to mitigate corrosion of a surface in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for mitigating corrosion for a metal surface in water systems.

Provided herein are compositions and methods for treatment of microbially contaminated water and microbially contaminated surfaces. The compositions can include a micellar system comprising an equilibrium peroxycarboxylic acid and a surfactant.

The present invention discloses a method for degrading perfluorinated compounds (PFCs) and belongs to the field of degradation of persistent pollutants. According to the present invention, cetyltrimethylammonium bromide (CTAB), indoleacetic acid (IAA) and PFCs are mixed to form compact self-assembled micelles, and the self-assembled micelles are illuminated, so that PFCs are rapidly degraded and defluorinated in the micelles, thereby realizing the degradation of PFCs by using a novel self-assembled micelle system and improving the degradation efficiency of PFCs.

Methods and systems are described for providing improved food processing systems by treating wash water in a wash stage of the food processing system with a biocide. Sufficient biocide may be added to significantly reduce the levels of bacteria in the wash stage, which can prevent problems associated with bacteria in downstream processes.