A method for treating contaminant within contaminated soil and groundwater, especially deep aquifers, through in situ oxidative remediation of the contaminant by sparging, wherein the method includes multiple injection wells, injecting an oxidizing multi gas comprised of high concentration ozone gas (10-20% ozone by wt., 75-85% oxygen) at pressures up to 500 psi (34.5 bar) to reach well depths in excess of 1100 feet (335 meters) and when necessary compressed ambient air at pressures up to 500 psi (34.5 bar).

The present disclosure provides systems and methods for increasing the oxygen concentration of a water supply. The systems generally include a water supply and an electrolyzer module that generates oxygen to be added to the water supply. The methods generally include generating oxygen using an electrolyzer module and adding the generated oxygen to a water supply.

An indirect heat transfer supercritical water oxidation system includes a supercritical water oxidation reactant system and an intermediate medium circuit. A control method thereof includes controlling two-process pressure and temperature increase, controlling pressure and temperature decrease and controlling normal operation. The present invention focuses on automatic control strategy of engineering practice of the indirect heat transfer supercritical water oxidation system. The system heating process adopts the idea of circulating heating, which effectively reduces the investment of the heating equipment avoids the mismatch between the working pressure of the two processes, and ensures effectiveness of the heat transfer between supercritical pressure fluid in the inner tube and the outer tube of the preheater/heat exchanger during subsequent heating process. The effective control of a reaction temperature and overpressure protection of critical equipment ensure a process effect and system safety.

The present disclosure discloses an NOI water bath apparatus, which includes an NOI generator, a GLM and a GLS, where the NOI generator includes an ionization module, and the ionization module is configured to ionize oxygen into NOIs; an air inlet end of the GLM is connected to an air outlet end of the NOI generator, the GLM includes a gas-liquid mixing module, and the gas-liquid mixing module is configured to dissolve the NOIs generated by the ionization module; a liquid inlet end of the GLS is connected to a liquid outlet end of the GLM, the GLS includes a first filtering module, and the first filtering module is configured to filter out exhaust gas in the gas-liquid mixing module.

The present disclosure provides a method for relieving a corrosive environment of a boiling water reactor, the method including a step of injecting hydrogen and a noble metal compound into water to be replenished into the reactor pressure vessel during a period of a generating operation of a boiling water nuclear power plant including the reactor pressure vessel. In the method, the hydrogen is injected into water to be supplied into the reactor pressure vessel, and the noble metal compound is injected into water in a line of the boiling water nuclear power plant in which a concentration of oxygen or hydrogen peroxide is stoichiometrically higher than the concentration of hydrogen at which hydrogen undergoes a chemical reaction to turn to water. Thus, when a noble metal is injected into a boiling water reactor, the noble metal can be restrained from adhering onto a pipe for an injection and other pipes, and thereby can increase the amount of the noble metal to be injected into a cooling water in a reactor pressure vessel.

The invention relates to a diffusor for adding of gases into water, said diffusor comprising a perforated tube (1) and at least one supply tube (2), said the at least one supply tube (2) is at one end coupled to a source for supplying gas and at the other end in fluid communication with the perforated tube (1), the gas is supplied to the perforated tube (1) through at least one inner supply tube (4; 5; 15) extending from the supply tube (2) to the perforated tube (1). The invention is distinctive in that at the least one inner supply tube (4; 5; 15) is a non-perforating tube and has at least one outlet (4a, 5a, 15a) situated at a free end of the at least one inner supply tube (4, 5, 15), said gas is adapted to be distributed into the perforated tube (1) through the at least one outlet (4a, 5a, 15a).

A method and apparatus for the removal of both suspended and dissolved contaminants in a fluid stream, including but not limited to heavy metals, organics, inorganics, hydrocarbons and others. The method combines passing an aqueous fluid stream through an electromagnetic field, an ozone/oxygen venturi injector for oxidation and through a horizontal flow and vertical fall within a horizontal plate maze unit of alternately electrically charged plates. The plates are charged alternately to be cathodes and anodes, respectively. A framework to mount and support membranes, dividers or separators, as may be required to enhance special treatment of the fluid stream, is optionally provided.

A cost-effective system and method dissolves gas, such as oxygen, into water in a manner that prevents gas bubble carry over by using a bubble capture system (BCS). The system and method further eliminates or minimizes turbulence at the suction and discharge of a pump using an energy dissipation header (EDH). The BCS can create a top-down flow that permits bubbles to rise faster than the velocity of the downward flow of water. The EDH can use a pipe design, such as a slotted pipe design, that permits a maximum system water flow. The technology can be applied to water bodies to mitigate eutrophication and may also be applicable in other fields, such as wastewater lift stations, fish farms, oil and gas industry, tidal applications with low flushing rates, and winter under ice oxygenation to prevent fish kills.

A method for treating effluent provides the effluent as an input to an apparatus having a vortex diode with aeration. The apparatus induces a cavitation assisted with aeration for the high rates of ammoniacal nitrogen in an orifice and the vortex diode with or without inserts/stabilizers to generate radicals, which reduce ammoniacal nitrogen of wastewater effectively during effluent treatments.

An external micro-interface papermaking wastewater treatment system and a wastewater treatment method are proposed. The wastewater treatment system includes a grating water collection tank, a first coagulation sedimentation tank, an inclined screen and a second coagulation sedimentation tank which are connected in sequence, a heat exchanger, a preheater and a wet oxidation reactor, wherein the heat exchanger is provided with a first inlet, a first outlet, a second inlet and a second outlet. A feed inlet is disposed on a side wall of the wet oxidation reactor, an oxidation water outlet is disposed on a top of the wet oxidation reactor, the feed inlet is connected with a micro-interface generator for dispersing and breaking gas into gas bubbles, a liquid phase inlet and a gas phase inlet are disposed on the micro-interface generator, and the gas phase inlet is connected with an air compressor.