A water purification system configured to continually monitor input water for the presence of heavy metal or organic chemical contaminants. The system automatically selects different types of filtration material, such as functionalized biochar filtration material, to purify the heavy metal or organic chemical contaminated water by automatically directing the water to filtration cartridges containing the filtration material best suited to removing the detected contaminants. The system is equipped with a processor, suitable sensors, and a plurality of removable cartridges. Each cartridge has a different type of filtration material, and each cartridge is equipped with a memory chip that can inform the processor as to the filtration capabilities of that particular cartridge. The system can keep track of its history of operation, and automatically notify operators when cartridges need to be replaced.

Disclosed are methods, apparatuses and systems for the remediation of contaminated soils, groundwater, water, and/or waste using a combination of reagents. The disclosed methods may be used to treat various recalcitrant halogenated substances, such as perfluoroalkyls and polyfluoroalkyls. Particular combinations of reagents that may be used in the disclosed methods include but are not limited to: (1) persulfate, oxygen and ozone; (2) persulfate, salt, oxygen and ozone; (3) persulfate, phosphate, and/or oxygen; (4) persulfate, phosphate, oxygen and ozone; (5) persulfate, phosphate, salt and oxygen (6) persulfate, phosphate, salt, oxygen and ozone; (7) oxygen and salt; and (8) air and salt. The disclosed methods may enhance destruction of organic contaminants in the liquid phase and may also control the rate of aerosol or foam formation relative to the rate of chemical oxidation and/or reduction/transfer.

Disclosed are compositions for degrading organic compounds, the composition comprising a support comprising one or more of a polyolefin and a compound comprising silicon and an acid anhydride of the structure:

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grafted to the polyolefin and/or the compound comprising silicon; and one or more metal oxides bound with the acid anhydride; wherein A is a cycloalkyl, heterocycloalkyl, or fused ring system comprising at least one unconjugated -ene group. Also disclosed are processes for making the composition, and methods for degrading organic compounds in a fluid.

The present invention relates to a method for removing dyes from textile effluents and other organic substances using nanocomposites based on zinc hydroxides and carboxylic acids capable of adsorbing and degrading. More specifically, the present invention consists of a method to generate new zinc hydroxide-based materials, which allows removal and degradation of methylene blue and other organic compounds from wastewater from industrial effluents, particularly those from textile industry.

Disclosed are methods, apparatuses and systems for the remediation of contaminated soils, groundwater, water, and/or waste using a combination of reagents. The disclosed methods may be used to treat various recalcitrant halogenated substances, such as perfluoroalkyls and polyfluoroalkyls. Particular combinations of reagents that may be used in the disclosed methods include but are not limited to: (1) persulfate, oxygen and ozone; (2) persulfate, salt, oxygen and ozone; (3) persulfate, phosphate, and/or oxygen; (4) persulfate, phosphate, oxygen and ozone; (5) persulfate, phosphate, salt and oxygen (6) persulfate, phosphate, salt, oxygen and ozone; (7) oxygen and salt; and (8) air and salt. The disclosed methods may enhance destruction of organic contaminants in the liquid phase and may also control the rate of aerosol or foam formation relative to the rate of chemical oxidation and/or reduction/transfer.

Zeolites functionalized with graphene oxide, reduced graphene oxide, or a sulfide have utility in removing pollutants from a water supply. Pollutants include Persistent Organic Pollutants (POPs) and heavy metals, such as lead.

A method of exposing microorganisms to a condition wherein the condition facilitates or inhibits growth of a specific species of microorganisms or a specific consortium of microorganisms. The condition may also stimulate microorganisms to uptake a pollutant from a fluid and/or release the pollutant. Furthermore, the microorganisms may also be harvested and used as a foodstuff for human and animal consumption.

The present invention relates to a method for removing pollution from water containing organic micropollutants by adsorption on granular activated carbon in a treatment reactor (1) having rising flow and an expanded bed, so as to reduce a previously set percentage of micropollutants, making it possible to specifically determine the weight or the volume of granular activated carbon which is optimal (necessary and sufficient) in the reactor in order to obtain said previously set reduction percentage of organic micropollutants.

A visible light catalyst, its preparation method, a visible light catalyst activated persulfate system and its use. The visible light catalyst includes a carbon material, a transition metal compound and a coating material. The carbon material is conductive carbon material, and the transition metal compound is selected from one or more of transition metal oxides, transition metal sulfides, and acid or salt compounds containing a transition metal. The visible light catalyst has high visible light photocatalytic activity and performance of degrading organic pollutants and activating persulfate which can result in synergistically degrading degradation-resistant organic pollutants.

A system and method for advanced oxidation (10) of treated sewage effluent provide additional treatment to treated sewage effluent (TSE) for reuse thereof. The method includes exposing TSE to ozone and hydrogen peroxide to oxidize contaminants; coagulating remaining waste in the TSE; flocculating the coagulated TSE; holding the flocculated treated sewage effluent in a settling tank for sedimentation; removing coarse suspended particles from the flocculated TSE by filtration after sedimentation; and removing fine suspended particles by ultrafiltration of the TSE after removing the coarse suspended particles. The system includes a chemical mixing tank (16); a homogenizing tank (22); an advanced oxidation process system (24); a rapid mixer; a flocculation tank (28); a sedimentation tank (32); a sand filter (34); and at least one ultrafiltration system (38), (36).