Disclosed is an electrolytic water treatment system (100) with an automated cathode cleaning mechanism thereof and in a method therefor. The electrolytic water treatment system (100) effectively removes scale forming minerals for large cooling towers and consumes less space. The electrolytic water treatment system (100) utilizes a shell in shell type arrangement so that both sides of anodes (18) and cathodes (16) are used for electrolysis simultaneously which makes the electrolytic water treatment system (100) highly efficient, effective and less expensive. By using the electrolytic water treatment system (100), the life of the anode (18) is increased at least two to three times compared to the polarity reversing method.

Methods and systems for the purification of an aqueous solution comprising a photocatalyst employed as an anode and a cathode in communication with an electrolyte to achieve a current flow wherein a charge is applied between the cathode and the photocatalytic excited anode a corresponding increase in electron-hole pairs occurs.

Embodiments of the present disclosure provide a device for kitchen waste digestion, including: a first treatment container, provided with a feed pipe and an exhaust pipe at a top, and internally configured with a plurality of pole plate pairs, the pole plate pairs including two pole plates, one of the pole plates being connected to a positive pole of a power source and another being connected to a negative pole of the power source, and a plurality of sieve holes being provided in each of the pole plates; and a second treatment container, a top of the second treatment container connecting to a bottom of the first treatment container, a middle part being configured with a plurality of filler layers spaced apart in a vertical direction, and a bottom being configured with an iron-carbon filler; and a filler in the filler layers including calcium peroxide and magnetite particles.

Described herein is an assembly, system and method for electrochemical destruction of perfluoro compounds such as PFOS, PFNA and PFOA, or other oxidizable or reducible compounds. Methods include flowing an aqueous liquid comprising a perfluoro compound into a vessel that houses a bipolar electrode assembly, the bipolar electrode assembly comprising a first electrode stack and second electrode stack, the first electrode stack comprising a first plurality of electrodes and the second electrode stack comprising a second plurality of electrodes, wherein the electrodes span laterally across at least a portion of the vessel, and wherein the electrodes define the boundaries of a tortuous path through the vessel; flowing the aqueous liquid through the vessel via the tortuous path; and applying a voltage to the bipolar electrode assembly while the aqueous liquid flows through the tortuous path to destroy the perfluoro compound.

A neutralization cell is provided which may be used to increase a pH level of a chlorine solution. The neutralization cell includes a neutralization anode, a neutralization cathode, an inlet, and an outlet. The neutralization anode and the neutralization cathode are positioned to divide the neutralization cell into a middle area between the neutralization anode and the neutralization cathode, an anode area on a side of the neutralization anode furthest from the neutralization cathode, and a cathode area on a side of the neutralization cathode furthest from the neutralization anode. The inlet directs the chlorine solution into the neutralization cell by directing an incoming flow of the chlorine solution into the anode area. The outlet directs the chlorine solution out of the neutralization cell by directing an outgoing flow of the chlorine solution from the cathode area.

Electrolytic cartridges for, systems for, and methods of electrolyzing a brine solution of water and an alkali salt to produce acidic electrolyzed water and alkaline electrolyzed water are provided. The system includes an internal chamber for receiving the brine solution and at least two electrolytic cartridges immersed in a brine bath. Each electrolytic cartridge includes an electrode, an ion selective membrane disposed on a side of the electrode so as to define a space adjacent to at least a portion of the electrode, a permeable insert covering the ion selective membrane on a side opposite the space, and a bonding plate disposed on the permeable insert on a side opposite the side facing the ion selective membrane. The methods recycle at least a portion of alkaline electrolyzed water into the feed of a cartridge having a positively charged electrode.

The invention relates to a device and a process for the desalination of NaCl solutions employing a three-chamber electrochemical cell separated by relative ion exchange membranes, namely a succession of a cathode chamber, a cation exchange membrane, a central chamber for the saline solution, an anion exchange membrane and an anode chamber. The oxidation of OH.sup.? and the reduction of H.sub.3O.sup.+ under the formation of OH.sup.? and H.sub.2 causes the passage of Na and Cl.sup.? ions from the central chamber to the other chambers, thereby reducing the salt concentration. The feeding of the cathode chamber can be managed in a circuit with the insertion of a carbonation reactor to reduce the concentration of NaOH and eliminate CO.sub.2 from the air. Under certain conditions, the chlorides entering the anode chamber undergo oxidation and the chlorine formed therein reacts with water to produce HCl and HClO.

Disclosed is a device for efficiently recycling nickel from wastewater and a method. The device includes a housing, and an extraction unit and an electro-deposition unit which are respectively arranged inside the housing. The device is reasonable in overall structural design. An oscillating and floating component and a rotating component in an extraction cavity are used to fully and uniformly mix a solution to maximize the extraction strength. A mixing component in an electro-deposition cavity is used to accelerate ion dispersion, to better recycle nickel. The device is easy to operate, low in cost and suitable for mass promotion.

An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. A flow-through model for oxygenating flowing water is disclosed. The use of supersaturated water for enhancing the growth of plants is disclosed. Methods for applying supersaturated water to plants manually, by drip irrigation or in hydroponic culture are described. The treatment of waste water by raising the dissolved oxygen with the use of an oxygen emitter is disclosed.

A bacterial fuel cell including a plurality of anodes and a plurality of cathodes in liquid communication with a liquid to be purified, the plurality of anodes and the plurality of cathodes each including a metal electrical conductor arranged to be electrically coupled across a load in an electrical circuit and an electrically conductive coating at least between the metal electrical conductor and the liquid to be purified, the electrically conductive coating being operative to mutually seal the liquid and the electrical conductor from each other.