A method of destroying a fluorocarbon compound includes regenerating an adsorbent to remove the fluorocarbon compound and to produce a regeneration fluid having a concentration of the fluorocarbon compound and directing the regeneration fluid to an electro-oxidation system. The method also includes applying a current to the electro-oxidation system to oxidize the fluorocarbon compound within the regeneration fluid and measuring a quantity of fluorides in the regeneration fluid to determine the progress of the removal of the fluorocarbon compound from the regeneration fluid.

A wastewater processing method includes introducing wastewater into an upper region of a chamber. The chamber remains at substantially atmospheric pressure. A portion of the wastewater in the chamber is vaporized. Flame is introduced into the chamber and provides for the ignition of a volatile organic compound. The vaporized portion of the wastewater is vented to the atmosphere.

A method of sorbing a PFAS compound from a contaminated sample can include admixing a modified clay sorbent with the sample. The modified clay can include a clay intercalated with a blend of mono-quatemary amine compound and multifunctional-quatemary amine compound having a functionality of 3 or more.

In order to solve the problem in the existing conventional water treatment process of low removal efficiency of heavy metal in water, especially lower efficiency for simultaneous removal of heavy metal pollutants during coexisting, a method is provided for removing heavy metal pollutants in water with divalent manganese strengthened ferrate: preparing a ferrate mother liquor having the concentration of 20-10,000 mmol/L; preparing a divalent manganese salt mother liquor having the concentration of 30-10,000 mmol/L; adding the divalent manganese salt mother liquor into water of the heavy metal pollutants; then adding the ferrate mother liquor, and reacting; and then adding a flocculant and precipitating, so that the removal rate of arsenate, chromium, thallium, antimony, chromium and molybdate in water is 90% or more, and the removal rate of heavy metal such as lead and cadmium is 85% or more.

Divalent ions are extracted from solids by leaching to form a divalent ion-containing solution. The divalent ion-containing solution is subjected to concentration to form a concentrated divalent ion-containing solution. Precipitation of a divalent ion hydroxide salt is induced from the concentrated divalent ion-containing solution. In other cases, the concentrated divalent ion-containing solution is exposed to carbon dioxide to induce precipitation of a divalent ion carbonate salt.

An environmental remediation system includes a contaminate treatment mat assembly to extract contaminates in pore water and sediment. The mat assembly includes a flexible liner and pore water and sediment-penetrating chambers individually anchored to the flexible liner. The anchored chambers include lids that are positioned above the liner and containers below the liner. The system includes a plate subsystem including plate holes. The plate subsystem is configured to have the mat assembly removable attached thereunder, absorb impact forces from a delivery system, translate the impact forces into a driving force applied simultaneously to tops of the lids of all the pore water and sediment-penetrating chambers under the plate subsystem to cause penetration of the containers into underlying pore water and sediment, and simultaneously displace fluid through liner holes of the liner and the plate holes. A method for environmental remediating using the system is also provided.

Catalyst materials comprising iron and palladium are described. Also described are methods for preparing such materials. In addition, methods for remediating materials such as sediments and groundwater using the catalyst materials are described.

This invention relates to an aqueous composition comprising, (a) an ion-exchange resin (IXR) comprising microporous beads having a particle size ranging from about 200 um to about 1000 um; (b) a water soluble surfactant having a molecular weight ranging from about 7,500 to about 15,000 Da; and (c) a buffer component; wherein the pH of the aqueous composition ranges from about 5 to about 8, and a process for isolating chemical contaminants using the aqueous composition.

An in-situ mycoremediation system and process is provided, including a device with a rod casing having a top end, a bottom end, and a sidewall with one or more perforations, the sidewall defining an internal channel that extends from an intake opening on the top end to the one or more perforations, a sleeve that extends around at least part of the rod casing and that is slidable between at least a first position that covers the one or more perforations and a second position that at least partly uncovers the one or more perforations, and a plumbing line linked to the intake opening and configured to facilitate forcible injection of one more fungal mixtures and/or air via the one or more perforations when the sleeve is in the second position.

Reactive treatment cells (RTCs) are described in combination with sediment capping systems as a means for environmental remediation. RTCs include an impermeable housing defining an interior, a permeable ceiling and floor typically including filtration materials such as geotextiles, and at least one interior compartment for treatment reagents. One RTC includes a gabion-like cage structure retaining a geomembrane-supported geosynthetic clay liner (GM-GCL) housing, while a second embodiment includes a hard, cylindrical shell as a replaceable reagent cartridge. RTCs may be employed in initial capping system installations or retrofitted into existing capping systems. RTCs may include optional baffles, flow restrictors, floating discs, sensor probes, and two or more serial reagent zones or compartments.