A method for selectively optimizing water chemistry within a wellbore may include positioning a system tubing in the wellbore. The system tubing may include an electrochemical cell, a first chamber, and a second chamber. The method may also include injecting a fluid into the electrochemical cell and directing an electrical current into the electrochemical cell wherein the fluid separates by charge into a first fluid and a second fluid. The method may also include passing the first fluid into the first chamber and the second fluid into the second chamber. Also, the method may include rotating the system tubing, wherein the first fluid flows from the first chamber to the wellbore though a first radial conduit and the second fluid flows from the second chamber to the wellbore through a second radial conduit.

The present disclosure provides an application of a titanium carbide/porous carbon composite in electrochemical treatment of uranium-containing wastewater, and belongs to the technical field of wastewater treatment. The present disclosure provides the application of the titanium carbide/porous carbon composite in electrochemical treatment of uranium-containing wastewater. Titanium carbide (TiC) is a typical transition metal carbide and has good conductivity and excellent chemical stability; compared with a titanium dioxide/carbon nanomaterial, the titanium carbide/porous carbon composite has a rich pore structure that provides a large number of activated adsorption sites for adsorption of metal ions during electro-adsorption, so that the electro-adsorption efficiency can be substantially improved, and a better electro-adsorption effect is obtained.

An improved bio-electrochemical wastewater treatment process and system (1) is disclosed. An electrode assembly (4) is defined by interconnecting a set of electrode modules (5). Each electrode module (5) has a first electrode of an anode-cathode pair coated with electrogenic microbes adapted to generate electrons via the consumption of organic matter in wastewater. An electrode module (5) has a second electrode of the anode-cathode pair, and a body, supporting and separating the first and second electrodes. Each electrode module (5) also comprises an interface for physically connecting the module with at least one other of the set.

A method of producing a porous carbon composite fibrous mats formed of a network of carbon fibers incorporated with porous carbon particles. The method includes electrospinning a polymer solution to form a porous layer of polymeric fibers and the polymeric fibers are doped with a precursor of conductive metal particles, where the polymer solution includes a polymer and the precursor of the conductive metal particles, electrospraying a metal organic framework suspension onto the porous layer of polymeric fibers, where the metal organic framework suspension includes metal organic framework particles, repeating the electrospinning and electrospraying in an alternating manner to form a porous network of polymeric fibers incorporated with the metal organic framework particles, and heating the porous network of polymeric fibers incorporated with the metal organic framework particles to form the porous carbon composite fibrous mats.

Disclosed is a device for selective oxidation of macromolecular organic pollutants using free radicals produced in a heterogeneous Fenton reaction. The device includes a heterogeneous Fenton reaction unit and an electrochemical cell. The heterogeneous Fenton reaction unit includes a reactor and an anion exchange membrane. The anion exchange membrane is disposed in the reactor and separates the reactor into a first chamber and a second chamber. The first chamber is filled with a catalyst and the wastewater to be treated; and the second chamber is filled with a dielectric material. The electrochemical cell is configured to supply an electric field to the reactor, so that organic acids generated by a heterogeneous Fenton reaction move from the first chamber into the second chamber.

The invention relates to an electrolytic reactor, in particular for separating phosphate from phosphate-containing liquids and/or recovering phosphate salts, comprising an inlet (16) for an electrolysis liquid and a flow channel (20) adjoining same, a magnesium metering unit (12) comprising two electrodes (22, 24) of different polarity being arranged in the flow channel (20), at least one of the two electrodes (22, 24) being a sacrificial electrode (20), wherein the magnesium metering unit (12) is designed as a free-level reactor and a mixing/sedimentation unit (14) being connected downstream of the magnesium metering unit (12) in the direction of flow, said mixing/sedimentation unit having a feed inlet (40) for the phosphate-containing liquids and an outlet (26) for the purified liquid for the obtained phosphate product.

A device for selectively removing a perfluorinated compound may include an adsorption electrooxidation tank including a reaction unit having a plurality of electrodes and granular activated carbon configured to oxidize and decompose a perfluorinated compound in raw water through adsorption and electrooxidation, a power supply device configured to supply power to the adsorption electrooxidation tank, and a head adjustment pipe unit configured to maintain a water level within the reaction unit at a height greater than or equal to a reaction height of the electrode.

The disclosure provides a novel electrocatalytic membrane reactor and use thereof in preparation of high-purity hydrogen. The electrocatalytic membrane reactor adopts an H-shaped electrolytic tank in which a cathode chamber is isolated from an anode chamber through a diaphragm, a membrane electrode is used as an anode, an auxiliary electrode is used as a cathode, a direct-current regulated power supply supplies a constant current, and the flow of a reaction solution is realized through a pump. In the disclosure, electrocatalysis is coupled with a membrane separation function, an oxygen evolution reaction is replaced with an organic electrochemical oxidation reaction in the anode chamber so as to reduce the overpotential of the oxygen evolution reaction, and a hydrogen evolving reaction is performed in the cathode chamber to prepare high-purity hydrogen.

A deionization battery cell including a first electrode compartment containing a first intercalation host electrode and includes a first water stream compartment in fluid communication with the first electrode compartment. The deionization battery cell further includes a second electrode compartment containing a second intercalation host electrode and a second water stream compartment in fluid communication with the second electrode compartment. The deionization battery cell also includes an ion exchange membrane assembly including a plurality of anion exchange membranes separated from each other, and from one or more cation exchange membranes positioned between the anion exchange membranes, by a plurality of intervening water stream compartments. The first and second water stream compartments are separated from one another by the ion exchange membrane assembly.

A plant growth promoting system according to the present invention makes foliar application of nitric oxide containing a mineral material, an enzymatic material, and a soil microorganism to a root part and leaves of a plant by pressure spraying, makes foliar application of carbonated water containing a plant growth promoter and a moisture fluctuation inhibitor to leaves of the plant by pressure spraying, and applies quantum energy to a round surface and an aerial part of the plant, thus providing the effect of promoting the growth of the plant.