Abstract:
A method and apparatus for treatment of a fluid medium to inactivate biocontamination using a pulsed electric field (PEF). A fluid medium is pumped through a treatment assembly to treat the fluid medium. A pulse generating system produces input pulses of high voltage that are supplied to the treatment assembly. A pulsed high intensity electric field associated with the input pulses is produced in a treatment assembly. As the fluid medium flows through the treatment assembly, it is exposed to the high intensity electric field, thereby treating the fluid medium. The pulse generating system includes a pulse compressor to reduce the rise time of the high voltage pulses supplied to the treatment assembly, and forming a pulsed electric field in space, without use of an electrode system.
Abstract:
A device for electrochemical treatment of a liquid, in particular for sterilising water, is provided with a tubular housing jacket, which is designed as a first electrode body (2) at least on its inner side, a central axial second electrode body (4), a first and second cover part (7, 8), which closes in each case an axial end of the tubular housing jacket, so that an annular gap chamber (6) is formed between the two electrode bodies (2, 4), an inlet channel (9) provided at the first axial end for the liquid, which flows into the annular gap chamber (6), an outlet channel (12) provided at the second axial end for the liquid, which likewise flows into the annular gap chamber (6) and a current supply unit (40), which is electrically connected to the first and second electrode body (2, 4), wherein one electrode body is intended as anode (A) and the other electrode body as cathode (K). In such a device, the outlet channel (12) flows into the annular gap chamber (6) in the region of the surface (4null) of the electrode body intended as anode (A) and thus has at least one mouth.
Abstract:
The present invention is a method and apparatus for altering a carbon-containing compound in an aqueous mixture. According to a first aspect of the present invention, it has been discovered that for an aqueous mixture having a carbon containing compound with an ozone reaction rate less than the ozone reaction rate of pentachlorophenol, use of corona discharge in a low or non-oxidizing atmosphere increases the rate of destruction of the carbon containing compound compared to corona discharge an oxidizing atmosphere. For an aqueous mixture containing pentachlorphenol, there was essentially no difference in destruction between atmospheres. According to a second aspect of the present invention, it has been further discovered that an aqueous mixture having a carbon-containing compound in the presence of a catalyst and oxygen resulted in an increased destruction rate of the carbon containing compound compared to no catalyst.
Abstract:
A portable device for the electrochemical processing of liquids which comprises a dielectric casing with cylindrical and coaxially aligned electrodes and an inter-electrode diaphragm partitioning the inter-electrode space into an anode and a cathode chamber, and current lead-ins. The cylindrical diaphragm made of ceramics on the basis of aluminum and zirconium oxides is installed coaxially to the electrodes. The electrodes and diaphragm are tightly fixed to make up an electrode-diaphragm unit whose anode and cathode chambers have elements for inputting and outputting liquids being processed, and the electrode-diaphragm unit itself is tightly fixed within the casing. The casing has ports in which hydraulic connector and an electric connector are tightly installed. Quick-disconnect hydraulic connections are connected on the casing's inner surface with the input and output elements of the electrode-diaphragm unit's anode and cathode chambers. The electric connecter is connected on the casing's inner surface with the current leads-in.
Abstract:
An electrodialysis cell (40) suitable for removal of paint solubilizer from electrocoat paint ultrafilter permeate includes a tubular, non-conductive housing (42), a substantially cylindrical, hollow object electrode (48) in the housing, a substantially cylindrical counter electrode (52) situated within the hollow object electrode, and a tubular ion exchange membrane (50) around the counter electrode but spaced from the counter electrode as well as the object electrode. The counter electrode and the tubular membrane together define an annular electrolyte passageway while the object electrode and the tubular membrane together define an annular ultrafilter permeate passageway. The object electrode-to-counter electrode area ratio is at least about 6.
Abstract:
An electrochemical cell for the treatment of water and/or water solutions comprises an internal electrode having a middle section and a pin-end at each end thereof, the diameter of each pin-end being not more than 0.75 of the diameter of the middle section; an external electrode mounted around the internal electrode; and a coaxial ceramic diaphragm mounted in a separate inter-electrode space in an electrode chamber of the cell. The external electrode is mounted in lower and upper dielectric bushings. Both the internal electrode and the external electrode are connected with positive and negative poles of a power supply. The cell further includes an upper dielectric collector head and a lower dielectric collector head which each have an axial channel; each collector head being installed in the bushing slots and adapted for turning therein. The diaphragm being fastened by elastic gaskets mounted in the slots of the bushings. The diameter of the middle section of the internal electrode being defined by the formula: 2M
Abstract:
Methods and apparatus for electroheating an electrically conducting flowable material are provided. In a preferred embodiment, flowable material is conveyed from an entrance passageway to first and second electrode assemblies. The flowable material is then conveyed from the first and second electrode assemblies to an exit passageway. Voltages of opposite polarity are respectively applied to the first and second electrode assemblies so that a first electric current passes through the flowable material as it is conveyed from the entrance passageway to the first and second electrode assemblies, and a second electric current passes through the flowable material as it is conveyed from the first and second electrode assemblies to the exit passageway, in order to electroheat the flowable material. The flowable material preferably is rapidly cooled after being electroheated. The present invention may, for example, advantageously be used to electroheat biological proteinaceous matter, such as liquid egg or milk.
Abstract:
Electrolytic treaters for treating highly conductive liquid media include a conductive housing structure which is fluidically sealed and has inlet and outlet fluid connections, a conductive electrode structure positioned within the housing structure, and a DC power supply connected to components of the housing and electrode structure in such a manner that the output voltage of the power supply is applied across a substantial portion of the liquid media to be treated to control the current flow from the power supply. In a preferred embodiment, the electrode structure is formed by a center electrode rod with a plurality of ring electrodes positioned coaxially between the center electrode rod and the housing. Each ring electrode is formed by a plurality of circumferentially spaced rod elements extending parallel to the center electrode. The rod elements in a given ring electrode are held in place by a plurality of annular spacer baffles which additionally affect the flow of liquid media through the treater.
Abstract:
An electromagnetic enriching device for electrolytes that are passed through a tubular cathode electrode that coaxially houses a sacrificial anode member. The electrolyte enters a housing containing the tubular cathode member and passes through an electric field established between the anode member and the tubular cathode member. Varying and alternating electromagnetic field is created by a coil wound over the cathode tubular member in order to interfere with the cations leaving the sacrificed anode member. In the manner, the device can be connected to a source of water, applying an electrolyte conditioner and resulting in an enriched water that will be applied to plants that require a particular nutrient. The anode member will be selected depending on the nutrient needed by the plant.
Abstract:
An apparatus for removing cations/anions from liquids including a container provided with an anode mounted centrally in the container, a cathode surrounding the anode and a layer of ion exchange material mounted between the cathode and anode, the cathode and a wall of the container form an outer space filled with water therebetween, the anode and cathode form a water-free inner space therebetween, the inner and outer spaces are connected with each other at opposite ends in order to generate a liquid circulation.