A dishwashing method in which water having an oxidizing and disinfecting action is provided in a dishwasher and used as dishwashing water or added to a dishwashing water, wherein, to provide the water, a) a stream of untreated water is fed into a reverse osmosis device and separated into a concentrate stream and a permeate stream, b) ozone is produced by an ozone generator, and c) the ozone is introduced into the permeate stream emerging from the reverse osmosis device, wherein the reverse osmosis controls ozone production in that the ozone generator is configured such that ozone is only produced and mixed with the permeate stream when the reverse osmosis device is in operation.

Corrosion Resistant Ozone Generators, including ozone generating chips, for various purposes including spas, pools and jetted tubs as well as methods for making and using such Corrosion Resistant Ozone Generators.

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 reverse osmosis system comprises a permeate collection tube which is connected at one end to a distribution system for permeate which comprises at least one device for cleaning and/or disinfection. The permeate collection tube, the cleaning and/or disinfection device and a circulation pump are arranged in a circulation circuit.

There is disclosed a treatment process of wastes containing organic molecules with electron-withdrawing groups on conjugated unsaturated bonds, for instance belonging to aromatic rings. The process comprises an electrochemical reduction step and a simultaneous or subsequent oxidation step, optionally also of electrochemical nature.

The invention provides a process apparatus and associated method comprising at least one elongate hollow semi-permeable member, at least one anode and at least one cathode. The anode and cathode are arranged radially and concentrically with respect to the semi-permeable member.

The present invention provides an aqueous electrolyte solution comprising at least four salts. The at least four salts are selected from: at least one salt selected from alkali metal chloride, alkali earth metal chloride, and ammonium chloride, or any combination thereof; at least one salt selected from alkali metal carbonate; alkali earth metal carbonate, and ammonium carbonate, or any combination thereof; at least one salt selected from alkali metal nitrate, alkali earth metal nitrate, and ammonium nitrate, or any combination thereof; and at least one salt selected from alkali metal phosphate, alkali earth metal phosphate, and ammonium phosphate, or any combination thereof.

Sanitary landfill leachate treatment by oxyammonolysis comprises three steps: 1.sup.st physical-chemical step with withdrawal of inert solid class II-B, 2.sup.nd step of filtration and 3.sup.rd step of catalytic oxidation and ammonolysis by cathodic reduction, obtaining treated effluents that complies with environmental legislation in terms of disposal or re-use of water.

An electrodialysis module includes at least one base unit. The base unit includes a working tank, a first ion-exchange membrane, a second ion-exchange membrane, at least one first electrode, and at least two second electrodes. The first ion-exchange membrane and the second ion-exchange membrane are located in the working tank. The first ion-exchange membrane and the second ion-exchange membrane together divide the working tank into two electrode compartments and a desalination compartment therebetween. The at least one first electrode is disposed in the desalination compartment. The at least two second electrodes are disposed in each of the electrode compartments, respectively, in which the at least two second electrodes and the at least one first electrode have different polarities.

Corrosion Resistant Ozone Generators, including ozone generating chips, for various purposes including spas, pools and jetted tubs as well as methods for making and using such Corrosion Resistant Ozone Generators.