A device includes a tube body 110 being filled with water; an induction coil 120 installed at a center inside the tube body 110; and a plurality of heating plates 130, 140 arranged around the induction coil 120. The device further includes a high frequency generator 180 for applying high-frequency power to the induction coil 120 to heat the plurality of heating plates 130, 140, resulting in that the water in the tube body 110 is heated and converted into micro-cluster magnetized water; and a tube 150, positioned between a pair of magnets 160, 170 for causing the micro-cluster magnetized water to pass through an N-pole and an S-pole resulting from the pair of magnets 160, 170, thereby providing it as magnetized water exhibiting a high degree of electric conductivity.

Disclosed is a multifunctional continuous hydrothermal oxidation experiment system, comprising a reactor (12), wherein an inlet of the reactor (12) is connected in parallel with an oxidant pipeline and a material pipeline; the oxidant pipeline comprises a gas oxidant delivery pipe and a liquid oxidant delivery pipe connected in parallel, and the gas oxidant pipe comprises an air oxidant delivery pipe and an oxygen delivery pipe connected in parallel; and a heat exchanger and a preheater are sequentially connected in series on the oxidant pipeline and the material pipeline, the oxidant pipeline and the material pipeline are in communication with an inner pipe of the heat exchanger; and the outlet of the reactor (12) is sequentially in communication, by means of piping, with a corrosion experiment device (14), an outer pipe of the heat exchanger, a cooler (16) and a gas-liquid separator (17).

Disclosed is a multifunctional continuous hydrothermal oxidation experiment system, comprising a reactor (12), wherein an inlet of the reactor (12) is connected in parallel with an oxidant pipeline and a material pipeline; the oxidant pipeline comprises a gas oxidant delivery pipe and a liquid oxidant delivery pipe connected in parallel, and the gas oxidant pipe comprises an air oxidant delivery pipe and an oxygen delivery pipe connected in parallel; and a heat exchanger and a preheater are sequentially connected in series on the oxidant pipeline and the material pipeline, the oxidant pipeline and the material pipeline are in communication with an inner pipe of the heat exchanger; and the outlet of the reactor (12) is sequentially in communication, by means of piping, with a corrosion experiment device (14), an outer pipe of the heat exchanger, a cooler (16) and a gas-liquid separator (17).

A method for cleanup of circulated rolling oil including gravity separation followed by size separation. The method includes supplying the circulated roiling oil to a separation chamber of a rotating centrifugal rotor and separating water and solid debris from the circulated rolling oil by centrifugal force. Oil, oil-water emulsion, and some residual debris may be recovered and supplied to a ceramic membrane having a pore size of 1.5 micron or smaller. A purified oil sample is recovered from the membrane, along with a reject including the oil-water emulsion and residual debris. The reject may be further concentrated by gravity separation and recycled to the membrane to recover further amounts of oil.

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.

Per- and polyfluoroalkyl substances (PFAS) are destroyed by oxidation in supercritical conditions. PFAS in water can be concentrated and prepared for destruction in a pretreatment phase. Following annihilation of the PFAS in supercritical conditions to levels below 5 parts per trillion (ppt), the water effluent can be used to recover heat, returned to sub-critical conditions, and then released back into the environment.

Aqueous wastewater from hydrothermal liquefaction (HTL) systems is typically high in chemical oxygen demand (COD), which renders classic aerobic wastewater treatment to be prohibitively expensive. HTL wastewater can be processed using thermochemical wet oxidation in a manner that is not only cost efficient but also contributes more heat than is required for the energetically demanding HTL process. Provided are methods and devices for integrated hydrothermal liquefaction of biomass and treatment of resulting wastewater.

Aqueous wastewater from hydrothermal liquefaction (HTL) systems is typically high in chemical oxygen demand (COD), which renders classic aerobic wastewater treatment to be prohibitively expensive. HTL wastewater can be processed using thermochemical wet oxidation in a manner that is not only cost efficient but also contributes more heat than is required for the energetically demanding HTL process. Provided are methods and devices for integrated hydrothermal liquefaction of biomass and treatment of resulting wastewater.

Systems and methods to separate water and remove solids from a pre-treated and unfiltered renewable feedstock at or separate from a refinery. Such systems and methods may be used to provide a reduced-contaminant and reduced-solid renewable feedstock for further refining.

A UV reactor for disinfecting water and including a UV source printed circuit board assembly transfers heat to a heat sink in the form of a water facing thermal coupler. The UV source printed circuit board assembly may include a metal clad printed circuit board having a thermal contact region in thermal communication with the heat sink.