A method for treating process material using a plurality of autoclaves, wherein each of the plurality of autoclaves cycles through the following: introducing steam from one or more of the plurality of autoclaves into an interior of a vessel; increasing the temperature within the vessel by adding heat to the interior of the vessel using an indirect heat source; reducing the temperature and pressure within the vessel by flashing a portion of the steam within the interior of the vessel to another one of the plurality autoclaves; increasing the temperature within the vessel by continuing to add heat to the interior of the vessel using the indirect heat source; and reducing a moisture content of the process material in the interior of vessel to a predetermined value by venting a remaining portion of the steam to another one of the plurality of autoclaves.

A method for treating process material using a plurality of autoclaves, wherein each of the plurality of autoclaves cycles through the following: introducing steam from one or more of the plurality of autoclaves into an interior of a vessel; increasing the temperature within the vessel by adding heat to the interior of the vessel using an indirect heat source; reducing the temperature and pressure within the vessel by flashing a portion of the steam within the interior of the vessel to another one of the plurality autoclaves; increasing the temperature within the vessel by continuing to add heat to the interior of the vessel using the indirect heat source; and reducing a moisture content of the process material in the interior of vessel to a predetermined value by venting a remaining portion of the steam to another one of the plurality of autoclaves.

The present disclosure describes electro-hydrofracturing (E-HF) using electrically conductive proppants and methods for hydraulic fracturing using electrically conductive proppants.

This disclosure relates to remediation processes and systems. Disclosed herein are processes and systems for remediation of material contaminated with one or more per- and polyfluoroalkyl substance (PFAS) compounds.

Embodiments of the present disclosure relate generally to a method, apparatus and system for the destruction of hazardous material including Per- and Polyfluoroalkyl substances. The method, apparatus and system can include non-concentrated hazardous material or the concentration of the hazardous material into granular activated charcoal or other absorbents and a vacuum controlled loading system for a re-usable or non-reusable container to minimize leakage of the hazardous material into the atmosphere.

Embodiments of the present disclosure relate generally to a method, apparatus and system for the destruction of hazardous material including Per- and Polyfluoroalkyl substances. The method, apparatus and system can include non-concentrated hazardous material or the concentration of the hazardous material into granular activated charcoal or other absorbents and a vacuum controlled loading system for a re-usable or non-reusable container to minimize leakage of the hazardous material into the atmosphere.

An in-situ thermal remediation method and a drip system for implementing the method. The drip water system collects data and changes its drip operation to optimize performance of the electrode. Electrical current, drip volume, drip cycle time and change in current are measured as a function of time and adjustments are made to the drip water volume and time between injections to optimize performance based on the observed current performance over time. A specialized screen delivers water where it is needed.

A method for treating process material using a plurality of autoclaves. The method includes: introducing steam into a hollow interior of a first autoclave; increasing the temperature within the hollow interior of the first autoclave by adding heat to the hollow interior of the first autoclave using an indirect heat source; reducing the temperature and pressure within the hollow interior of the first autoclave by flashing a portion of the steam within the hollow interior of the first autoclave to a second autoclave; increasing the temperature within the hollow interior of the first autoclave by continuing to add heat to the hollow interior of first autoclave using the indirect heat source; and reducing a moisture content of a process material in the hollow interior of the first autoclave to a predetermined value by venting a remaining portion of the steam from the first autoclave into a third autoclave.

A method for treating process material using a plurality of autoclaves. The method includes: introducing steam into a hollow interior of a first autoclave; increasing the temperature within the hollow interior of the first autoclave by adding heat to the hollow interior of the first autoclave using an indirect heat source; reducing the temperature and pressure within the hollow interior of the first autoclave by flashing a portion of the steam within the hollow interior of the first autoclave to a second autoclave; increasing the temperature within the hollow interior of the first autoclave by continuing to add heat to the hollow interior of first autoclave using the indirect heat source; and reducing a moisture content of a process material in the hollow interior of the first autoclave to a predetermined value by venting a remaining portion of the steam from the first autoclave into a third autoclave.

The invention provides a method and a system for treating and/or decontaminating porous materials and/or aquifer layers, including at least one housing, at least one heating module, one module for injecting pressurized liquid and one recovery module. The heating means is capable of being introduced in the porous material, and includes at least one heating tube having a heat-conducting outer wall. The heating tube can be connected to the heating module. At least one pressurized-liquid injection tube is included which can be connected to the pressurized-liquid injection module. The system includes at least one vapor-extraction means for extracting the contaminant vapor. The extraction means is capable of creating the vacuum in the porous material and can be connected to the recovery module, and at least one layer of sealing material that can be applied to the surface of the porous material to be treated.