摘要:
An arrangement for the exposure of a pumpable medium to an electric field. The arrangement comprises, at least two power supplies (100) for the generation of electrical voltage, at least one non-conducting chamber (102) for pumping said pumpable medium, which said at least one chamber (102) is provided with a first (106) and a second electrode plate (108), a control means (104) for controlling said at least two power supplies (100). During control the control means (104), by synchronous control, establishes a series connection between at least two of said at least two power supplies (100), the first electrode plate (106) and the second electrode plate (108). A resulting composite voltage arises between the first (106) and the second electrode plate (108), which resulting composite voltage will result in an electric field between the first (106) and the second electrode plate (108). The pumpable medium is exposed to the electric field. A method for the exposure of a pumpable medium to an electric field is also provided.
摘要:
A magnetic sludge which is suitable for use in waste water treatment, is easy to prepare, contains microbes and interacts with a magnetic field; and a method for treating waste water with improved efficiency comprising employing a biological membrane which uses the magnetic sludge and hence is easy to control its movement.
摘要:
For example, a coil 2 is provide on the outer side of a water pipe 1 of a water channel, water to be treated 3 is fed, and a specific alternating current having a specific frequency or a specific peak current is supplied from an AC power supply 4 to the coil 2. As a frequency of the specific alternating current, one resonant frequency is selected out of a resonant frequency group having plural resonant frequencies. A resonant magnetic field is induced in the channel by the specific peak current. An oscillating electromagnetic field induced by such a specific alternating current is imparted to the water to be treated 3 and subjecting the water to be treated 3 to electromagnetic field treatment, whereby active treated water 5 that is simply and easily and highly efficiently activated can be obtained.
摘要:
The invention relates to a method for reducing impurities which are formed by organic dyestuffs, biocatalytic substances and/or microorganisms and/or other biological material in a water system (90) during the production of flat structures from fibrous material in aqueous suspension. A method is provided for reducing the use of chemicals and/or complementary dyestuffs in order to reduce the impurities formed in the water system by a gas discharge and/or a plasma being generated by application of a voltage (U) to electrodes (50, 51) in the water (23) or in the suspension, wherein a voltage profile (60) of the voltage (U) has voltage pulses (66, 67) having a pulse duration of less than 10 μs, wherein a streamer discharge (53) is generated. A papermaking plant (1) can thus be operated in a more environmentally friendly manner.
摘要:
A treatment apparatus for at least partially disinfecting a fluid such as water comprises a pipe (16) for conveying a flow of fluid to be treated, a series of ultraviolet (UV) light emitting diodes (LEDs) (62) for emission of the UV light into the fluid, and a control circuit (70) for controlling operation of the LEDs. The control circuit is configured for pulsing the LEDs and the LEDs are arranged such that the fluid flows over a surface of each LED, as it is conveyed by the pipe in operation.
摘要:
An anti-fouling and eliminating system against aquatic organisms includes one or more anode and cathode terminals installed at a portion of a marine structure, and at least one pulse generator electrically connected to the anode and cathode terminals. Attachment of the aquatic organisms to the marine structure can be easily performed or the aquatic organisms, planktons, or larvae or spawn of the aquatic organisms present in a ballast tank can be eliminated, without using a chemical method, in an environmentally friendly manner.
摘要:
Sterilisation system for sterilising and/or neutralising the activity of micro-organisms in liquids and gasses, and sterilisation and/or neutralisation process. The invention relates to a sterilisation system for sterilising/neutralising the activity of micro-organisms in liquids and gasses. Sterilisation is carried out by exposing the micro-organisms to a potential difference ranging from 200 to 1000 mV.