Products and methods related to the enhancement of efficacy of algaecides and/or aquatic herbicides using metallic trivalent cations, as well as the reduction in ecotoxicity and non-target effects and preservation of water quality. Some embodiments advantageously provide the benefit of binding phosphorus, but allow for a substantial reduction in the dissolved trivalent metal and an increased ability to target the main source of future phosphorus release. In one aspect of an embodiment, a trivalent cation delivery system includes a commonly available commodity that can be simultaneously added to the water or mixed in a tank prior to the application, avoiding the need for an industrial process to cohere the components. In another aspect of the embodiment, the trivalent cation delivery system may be accomplished by the use of an algaecide and/or aquatic herbicide prior to the application of the phosphorus binding metal.

The present disclosure relates to a self-regenerable fibrous adsorbent for heavy metal adsorption, which is capable of adsorbing heavy metal ions in water, growing them into crystals and desorbing the grown heavy metal crystals on its own, and a method for preparing the same. The self-regenerable fibrous adsorbent for heavy metal adsorption according to the present disclosure is a fibrous polymer consisting of PAN and PMMA, wherein amine functional groups are immobilized on the surface of the PAN and hydroxyl groups (—OH) are immobilized on the surface of the PMMA.

The present disclosure relates to a self-regenerable fibrous adsorbent for heavy metal adsorption, which is capable of adsorbing heavy metal ions in water, growing them into crystals and desorbing the grown heavy metal crystals on its own, and a method for preparing the same. The self-regenerable fibrous adsorbent for heavy metal adsorption according to the present disclosure is a fibrous polymer consisting of PAN and PMMA, wherein amine functional groups are immobilized on the surface of the PAN and hydroxyl groups (—OH) are immobilized on the surface of the PMMA.

Described are filtration elements for removing materials from a fluid. The filtration elements generally operate by inducing cavitation into a fluid passing through them, generating energy and removing unwanted materials from the fluid. The filtration elements can be used singularly or in combination with one another for a multiple level filtration system.

Described are filtration elements for removing materials from a fluid. The filtration elements generally operate by inducing cavitation into a fluid passing through them, generating energy and removing unwanted materials from the fluid. The filtration elements can be used singularly or in combination with one another for a multiple level filtration system.

Devices, systems and methods for the detection and capture of mercury and methyl-mercury from aqueous sources are provided. The devices and methods are based on a polymer platform with thiol or sulfide moieties and phenol moieties capped with an acid labile protected with an acid labile cap. Capture of the Hg or MeHg by the thiol groups releases a proton that will subsequently catalyze the cleaving of the cap that also produces a proton so that one capture event can result in a cascade of deprotonaton reactions enhancing the detection limit. The polymer in solution can be detected and quantified. The thiol binding will also permanently remove the Hg or MeHg from the solution. The platform can be adapted to a portable handheld device.

Devices, systems and methods for the detection and capture of mercury and methyl-mercury from aqueous sources are provided. The devices and methods are based on a polymer platform with thiol or sulfide moieties and phenol moieties capped with an acid labile protected with an acid labile cap. Capture of the Hg or MeHg by the thiol groups releases a proton that will subsequently catalyze the cleaving of the cap that also produces a proton so that one capture event can result in a cascade of deprotonaton reactions enhancing the detection limit. The polymer in solution can be detected and quantified. The thiol binding will also permanently remove the Hg or MeHg from the solution. The platform can be adapted to a portable handheld device.

The present application discloses a method of binding a metal ion in water. The method comprises contacting the water with a fraction of dissolved organic material (DOM) to form a complex between the DOM fraction and the metal ion; and optionally separating the complex from the water. The present application also discloses a use of DOM for binding a metal ion in water.

The present application discloses a method of binding a metal ion in water. The method comprises contacting the water with a fraction of dissolved organic material (DOM) to form a complex between the DOM fraction and the metal ion; and optionally separating the complex from the water. The present application also discloses a use of DOM for binding a metal ion in water.

A method of treating a liquid by creating nanobubbles of a desired gas within a target liquid and allowing the desired gas to react with a target component of the target liquid. The desired gas can be selected to be reactive with the target component, and a desired liquid can be formed after the desired gas reacts with the target component.