Abstract:
A device includes a first electrode and a second electrode spaced from the first electrode to define a volume. An anion exchange membrane and a cation exchange membrane are disposed within the volume. A controller controls a supply of electrical current from an electrical source to the first electrode and to the second electrode. The electrical current supply is controlled to switch from a first mode of operation to a second mode of operation providing electrical current having a reverse polarity during each cycle. The electrical current is supplied at a controlled cycle rate and for a controlled duration. The cycle rate is greater than about 100 hertz and less than about 10 kilohertz.
Abstract:
A mediated electrochemical oxidation process is used to treat, oxidize and destroy halogenated hydrocarbon waste materials. The waste materials are introduced into an apparatus for contacting with an electrolyte containing the oxidized form of one or more reversible redox couples, at least one of which is produced electrochemically by anodic oxidation at the anode of an electrochemical cell. The oxidized forms of any other redox couples present are produced either by similar anodic oxidation or reaction with the oxidized form of other redox couples present and capable of affecting the required redox reaction. The oxidized species of the redox couples oxidize the halogenated hydrocarbon waste molecules and are themselves converted to their reduced form, whereupon they are reoxidized by either of the aforementioned mechanisms and the redox cycle continues until all oxidizable waste species, including intermediate reaction products, have undergone the desired degree of oxidation.
Abstract:
The invention relates to a method, a treatment installation (26) and a treatment component (29) for the destruction of microorganisms and macroorganisms in a flowing liquid. The destruction takes place instantaneously, while the liquid passes through said component (29) in said installation (26). The treatment is performed in that the liquid is led in a forced movement through a passage (49) in a case (48) of electrically insulating material. In flowing through the passage, the liquid is subjected to an influence from one or more alternating current fields in that alternating current is short-circuited in the flow of water through alternating current conductors (50) that are arranged internally in said case (48).
Abstract:
An apparatus to treat an influent solution comprising ions to obtain a selectable ion concentration in an effluent solution. The apparatus comprises an electrochemical cell comprising a housing comprising first and second electrodes. A water-splitting ion exchange membrane is between the first and second electrodes, the membrane comprising ananion exchange surface facing the first electrode, and an cation exchange surface facing the second electrode, or vice versa. The housing also has an influent solution inlet and an effluent solution outlet with a solution channel that allows influent solution to flow past both the anion and cation exchange surfaces of the water-splitting ion exchange membrane to form the effluent solution. A variable voltage supply is capable of maintaining the first and second electrodes at a plurality of different voltages during an ion exchange stage.
Abstract:
A zebra mussel control device uses a combination of electrical current and air bubbles to kill or disable mussels entering water intakes. The current is fed between electrodes that extend radially at equiangular positions around a cylindrical inlet of the water intake. Bubbles are created by an annular air chamber of the water intake below the cylindrical inlet. The bubbles rise, and pass through the gaps separating adjacent electrodes. Mussels entering the gaps are moved upwardly in the gaps by the action of the bubbles, thus increasing the normal transit time of the mussels through the gaps. In the result, the mussels are subjected to electrical current for a longer time than would be the case without the bubbles, and are disabled for a time sufficient to ensure that they pass through the water intake without attaching. The bubbles also drag any drifting mussels away from the water intake. This arrangement has been shown to be a very effective way to control zebra mussel blockage of water intakes.
Abstract:
There are provided a method and apparatus for cleaning contaminated water, for instance in lakes, marshes, rivers and waste water reservoirs in factory site. A set of fiat electrodes is immersed in the water, which electrode set includes a pair of voltage application electrodes made of relatively high electrolysis capability material and a grounding electrode placed in the vicinity of the voltage application electrode. An alternating current voltage of relatively high frequency is applied to the pair of voltage applying electrodes to give an electric power to the water. A degree of quality of resulting water is determined as an index a measured value of oxidation-reduction potential of the water.
Abstract:
Treatment of a polluted medium such as sewage by dissociation of organic compounds. By injecting audiofrequency energy and ionizing the sewage, the contaminants and pollutants are rendered harmless. The audiofrequencies are selected to deal with the organic matter or compounds and other dissolved or colloidally suspended components constituting the pollutants or contaminants of the sewage.
Abstract:
본 발명은 휴대용 수소수 미스트 분사기에 관한 것으로, 본 발명은 물통 상부에 하단부분이 결합되는 중앙케이스 내측 하부에 배치되는 밀폐설치프레임 및 밀폐설치프레임 하부에 결합고정되어 물통의 상단이 개방된 결합부를 기밀유지시키되 물통 내부의 가스를 선택적으로 외부로 배출되도록 하는 배출안내홈과 배출안내공을 가지는 기밀유지프레임이 적용됨으로써 물통 내부압력의 일정압력 초과시 물통 내부의 가스에 대하여 밀폐설치프레임과 기밀유지프레임 사이를 경유한 후 배출안내홈과 배출안내공을 거쳐 외부로 가스가 배출 안내될 수 있으며, 이에 따라 수소발생을 위한 전기적인 구성인 제어유닛 등에 대한 물통 내부압력의 일정압력 초과시에도 수소성분 및 수분을 내포하는 가스의 침투를 방지할 수 있으며, 아울러 물통 내부압력의 일정압력 초과시 가스를 외부로 배출하면서 미스트 분사를 위한 기기의 안전성 및 내구성을 현격히 향상시킬 수 있는 것이다.