Iron electrocoagulation (Fe-EC) reactors for removing contaminants from water comprising an assembly of spiral-wound or folded iron-containing anode and cathode plates separated with perforated insulating spacers, or an oxidant to accelerate oxidation of Fe(II) ions released from the anode to obtain Fe(III) ions, and/or to oxidize the contaminant.

An ultra-high alkaline electrolyzed water generation system with a pH 12.5-13.5 pH is provided. The ultra-high alkaline electrolyzed water generation system includes an electrolytic cell, a first tank, a second tank, a water tank, and a plurality of flowlines. The ultra-high alkaline electrolyzed water generation system is cost-effective. The ultra-high alkaline electrolyzed water generation system enables production of ultra-high alkaline electrolyzed water at faster rate for commercial and industrial applications with a large shelf life and can be stored in containers for later use. The invention also provides an electrolytic cell. The electrolytic cell includes a cathode chamber, an anode chamber, and a cation permselective membrane. The electrolytic cell enables production of the ultra-high alkaline electrolyzed water. The ultra-high alkaline electrolyzed water with a configurable pH range has the ability to sterilize, clean and disinfect without the use of harsh chemicals.

The present disclosure includes arrangements, systems, and methods for removing mineral deposits. Disclosed is an aqueous solution within a container, with the container containing mineral deposits. The aqueous solution submerges the mineral deposits and may include at least one acid, or a combination of an organic acid and an inorganic acid in percentages that allow the replacement of toxic dangerous chemical ingredients. Disclosed also is a cathode and an anode within the container that are at least partially submerged within the aqueous solution. A direct current power source is configured to direct a voltage across the cathode and the anode to generate an electrical charge gradient within the aqueous solution.

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 hydrogen peroxide removing apparatus for removing hydrogen peroxide contained in water to be processed includes: anode and cathode; and hydrogen peroxide removal chamber provided between anode and cathode and at least partially filled with a metal catalyst with hydrogen peroxide decomposition ability, wherein a DC voltage is applied between anode and cathode.

REM systems for disinfecting water, which includes a tank, a membrane anode, a cathode, and a conductive contactor, is disclosed. The conductive contactor is in direct contact with the membrane anode. The conductive contactor is in electrical communication with the cathode. The REM systems can further contain an inlet and an outlet for supplying water into the tank and removing water out of the tank respectively. The membrane anode includes a carbon-based material. In the most preferred embodiment, the membrane anode includes layers of activated carbon fiber cloth (ACFC). The membrane anode functions as both the anodic electrode that produces electrochemical reaction and the membrane filter. In one preferred embodiment, the membrane anode generates reactive oxygen species from water oxidation reaction that is effective in disinfecting pathogens in water. Methods of making and using the REM systems are also disclosed.

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.

Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided. The systems utilize, inter alia, oxidation reduction potential control to regulate the dechlorination of an electrocatalytically generated biocidal agent to allowable discharge levels in ship buoyancy systems and ship cooling water systems

A method of controlling red tide in a body of sea water involves treating the body of sea water with a quantity of red tide inhibitor adequate to be effective in resisting growth of the red tide. Corresponding apparatus in the nature of floating vessels containing electrolysis cells are also disclosed.

Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided. The systems utilize, inter alia, oxidation reduction potential control to regulate the dechlorination of an electrocatalytically generated biocidal agent to allowable discharge levels in ship buoyancy systems and ship cooling water systems