A method of moderating concentration of at least highly fluorinated alkyl materials (e.g., molecules) from a contaminated aqueous feed liquid containing an original composition of between 5 parts/trillion and 3000 parts/billion of the at least highly fluorinated materials per liter of water into an aqueous electronic separator having multiple chambers including a feed chamber having a liquid exit port from which a mediated aqueous contaminated feed liquid exits and a liquid input port into which the contaminated aqueous feed liquid enters the feed chamber; an anodic electrode chamber filled with an aqueous anodic liquid; and a cathodic electrode chamber filled with an aqueous cathodic liquid; wherein the feed chamber is between and adjacent to the anodic electrode chamber and the cathodic electrode chamber and the feed chamber is separated from each of the anodic electrode chamber and the cathodic electrode chamber by at least one semipermeable membrane.

The invention provides a dynamic membrane reactor with function of nitrogen and phosphorus removal and an operation method thereof, and comprises a biological treatment system, a dynamic membrane loading system and an automatic system. The operation method comprises the following steps. (1) Before the formation of dynamic membrane, a porous filter for phosphorus removal is used as a cathode, a conductive precision filter screen is used as an anode, and aerobic denitrifying bacteria are inoculated into the dynamic membrane reactor under certain constant current density, hydraulic retention time and flux. (2) After the dynamic membrane is formed, the porous filter for phosphorus removal is used as the anode, the conductive precision filter screen is used as the cathode. And intermittent aeration is started at the anode under certain constant current density. (3) When the transmembrane pressure difference exceeds a certain range, hydraulic backwashing is performed under certain constant current density.

Electrolytic cell for an electrolytic treatment of a liquid, the electrolytic cell comprising including a receptacle defining an electrolysis chamber; a first set of conductive plates, a second set of conductive plates, and a third set of conductive plates, which are arranged in the electrolysis chamber, the conductive plates of the first, second and third sets extending radially in relation to the longitudinal axis (A) of the receptacle; an electrical power source configured to supply electricity to the conductive plates of the first, second and third sets; a switching device configured to interrupt the electricity supply to the conductive plates of the first, second and third sets and to modify the electrical connection between the conductive plates of the first, second and third sets and positive and negative terminals of the electrical power source; and a control unit configured to control the switching device according to an operating cycle.

A method and system for reducing ion concentration of a solution and converting gas. The system comprising a multi-chamber unitary dialysis cell comprising a gas chamber, a product chamber, and an acid chamber. Ion exchange barriers separate the chambers of the dialysis cell. A first anion exchange barrier is positioned between the product chamber and the acid chamber and a first cation exchange barrier is positioned between the product chamber and the gas chamber. Anions from the solution being treated associate with cations from the acid chamber to form an acid solution in the acid chamber, and cations from the solution being treated associate with anions from the fluid comprising gas to form salt, thereby reducing the ion concentration of the solution being treated and converting at least a portion of the gas into salt.

The present disclosure relates to a biocide generating system for inhibiting bio-fouling within a water system of a watercraft. The water system is configured to draw water from a body of water on which the watercraft is supported. The biocide generating system includes an electrode arrangement adapted to be incorporated as part of an electrolytic cell through which the water of the water system flows.

A Dielectric Barrier Discharge system controller for controlling a fluid treatment by a Dielectric Barrier Discharge system is provided. Therein, the strength of an effect caused by a discharge created by the Dielectric Barrier Discharge system is monitored, and the generation of high-voltage pulses by the high-voltage pulse generator is controlled. The controlling of the generation of the high-voltage pulses is adapted based on the received sensor data.

The present disclosure relates to a biocide-generating device for outputting a biocide to a water system. The biocide-generating device includes a housing having a water inlet for receiving water from the water system and a water outlet for outputting water containing biocide to the water system. The biocide-generating device also includes an electrode arrangement having first and second electrodes positioned in the housing for generating biocide in the water within the housing, and an electrical power circuit for establishing a flow of electrical current between first and second electrodes of the electrode arrangement for generating the biocide in the water within the first chamber electrolytic cell. A control system of the biocide-generating device has operational features adapted to inhibit scaling to the electrode arrangement.

A control system of a dual power supply type electrolyzer includes an electrolyzer, a first power supply circuit, and a second power supply circuit. The electrolyzer includes a first electrode and a second electrode. The first power supply circuit connected to the first electrode. The second power supply circuit connected to the second electrode. The first power supply circuit and the second power supply circuit simultaneously supply power respectively to the first electrode and the second electrode. The first electrode and the second electrode have a same amount of power, but the first electrode and the second electrode have different polarities and their polarities alternate periodically.

A method of moderating concentration of at least highly fluorinated alkyl materials (e.g., molecules) from a contaminated aqueous feed liquid containing an original composition of between 5 parts/trillion and 3000 parts/billion of the at least highly fluorinated materials per liter of water into an aqueous electronic separator having multiple chambers including a feed chamber having a liquid exit port from which a mediated aqueous contaminated feed liquid exits and a liquid input port into which the contaminated aqueous feed liquid enters the feed chamber; an anodic electrode chamber filled with an aqueous anodic liquid; and a cathodic electrode chamber filled with an aqueous cathodic liquid; wherein the feed chamber is between and adjacent to the anodic electrode chamber and the cathodic electrode chamber and the feed chamber is separated from each of the anodic electrode chamber and the cathodic electrode chamber by at least one semipermeable membrane.

Electrode catalytic layers coated on outer surfaces of oxidation electrode and a reduction electrode used to generate sterile water, where the electrode catalyst layers are formed on the outer surfaces of the oxidation electrode and a reduction electrode to have predetermined thickness, and are composed of iridium (Ir), palladium (Pd), and tantalum (Ta), and wherein the palladium (Pd) has a weight ratio of 10% to 30%, and a sum of the weight ratios of the iridium (Ir) and the tantalum (Ta) is 70% to 90%.