Abstract:
The present invention relates to an apparatus for generating high frequency electromagnetic field with adjustable magnetic field intensity and waveform and water purification system comprising the same. The apparatus for generating high frequency electromagnetic field is comprising of a user input unit into where the user can input; a quantum field generator for generating a quantum field of high voltage which is capable of adjusting output voltage; a wave generator for generating high-frequency signals of variable waveforms and matching with the quantum field; a high-frequency output unit for scanning the matched quantum field of high frequency; and a controller that controls magnitude of output voltage from the quantum field generator and output frequency from the wave generator. Therefore, the present invention provides the apparatus for generating high frequency electromagnetic field with extra high voltage at low cost which can treat waste water effectively according to characteristics of a contaminant and has no fear of secondary contamination.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims priority from Korean Patent Application No. 10-2010-0052633, filed on Jun. 4, 2010 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. 
       BACKGROUND 
       [0002]    1. Field 
         [0003]    The present invention relates to an apparatus for generating high frequency electromagnetic field and water purification system comprising the same. 
         [0004]    2. Description of the Related Art 
         [0005]    Commonly, the technology of wastewater treatment is divided into a biological process, a chemical process and a physical process and so on. Moreover, it can be divided into the first, the second, third process and so on. The first process is the physical process and the second process is the chemical or biological process. And the high class of third process can be any one out of the physical, chemical and biological process. 
         [0006]    An advanced oxidation method is spotlighted as high class of a method of waste water treatment these days. This method, one of the typical physical process, is to treat contaminants in waste water using oxidation-reduction reaction. 
         [0007]    Although, the typical method of waste water treatment using the advanced oxidation method has complex structure of the apparatus, but the process corresponding to the type and characteristics of contaminants is invariable and uniform. Therefore, it is not effective despite of high cost. 
         [0008]    Furthermore, there is concern about increasing non-degradability as the contaminants, degraded in supersonic waves, recombined in some range of high-frequency waves. 
         [0009]    Therefore, what is needed is some type of apparatus which has no risk of occurrence of secondary contaminants and has good efficiency to treat wastewater with reasonable cost. 
       SUMMARY 
       [0010]    Objects of the present invention are to provide an apparatus for generating high frequency electromagnetic field which is capable of adjusting a magnetic field intensity and frequency having direct influence on degradability according to the characteristics of contaminant, and to provide a water purification system having thereof. 
         [0011]    The other object of the present invention is to provide an apparatus for generating high frequency electromagnetic field which has no risk of occurrence of the second contamination, and a water purification system having thereof with reasonable cost. 
         [0012]    The objects can be attained by an apparatus comprising a user input unit; a quantum field generator for generating a high-voltage quantum field which is capable of adjusting output voltage; a wave generator for generating high-frequency signals with variable waveforms and matching the high-frequency signals with the quantum field generator; a high-frequency output unit for scanning the matched high-frequency quantum field; and a controller that controls level of the output voltage from the quantum field generator and output frequency from the wave generator corresponding to input by the user input unit. 
         [0013]    Wherein the user input unit comprises selecting means which is capable of selecting a type of a contaminant; the controller saves data about level of the output voltage and the output frequency of the high-frequency signals corresponding to characteristics of the contaminant in advance, and outputs a control signal to the quantum field generator and the wave generator by reading data corresponding to input by the user input unit. 
         [0014]    Also, wherein the quantum field generator comprises a primary power supply; a variable voltage generator varying the voltage that is generated by the primary power supply according to the control signal of the controller and outputting the varied voltage; a high-voltage conversion unit converting the varied voltage into high voltage; and a voltage multiplying rectifier circuit unit generating required quantum field by rectifying and multiplying the varied high voltage. 
         [0015]    Furthermore, wherein the variable voltage generator varies and outputs voltage in the range of AC 0 to 220V using a slide transformer, the high-voltage conversion unit varies and outputs voltage in the range of 0 to 10 kV, and the voltage multiplying rectifier circuit unit varies and outputs voltage in the range of 0 to 40 kV. 
         [0016]    Moreover, wherein the wave generator is comprised of a secondary power supply; a high-frequency variable generator adjusting frequency according to the control signal of controller and outputting a high-frequency signal, a wave amplifier amplifying the high-frequency signal outputted by high-frequency variable generator, and a matching unit matching the high-frequency signal output from wave amplifier with a voltage multiplying rectifier circuit unit. 
         [0017]    Likewise, the matching unit is formed by connecting with a high withstand-voltage resistance and a condenser in parallel and linking a diode to output unit, and the high-frequency variable generator varies and outputs high-frequency signal in the range of 16 KHz to 40 MHz. 
         [0018]    Furthermore, water purification system comprising the apparatus mentioned above further comprising a high-frequency discharge electrode discharging high-frequency quantum field; a protective cap to protect high-frequency discharge electrode; and a reactor comprised of a diffuser for air bubbling which is capable of bubbling discharged high-frequency quantum field from high-frequency discharge electrode into waste water and an earth electrode. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]      FIG. 1  is a block diagram showing an apparatus for generating high frequency electromagnetic field according to an embodiment of the present invention; 
           [0020]      FIG. 2  is a block diagram showing a quantum field generator, a wave generator, and a high-frequency output unit according to an embodiment of the present invention; 
           [0021]      FIG. 3  is a detailed circuit diagram of  FIG. 2 ; and 
           [0022]      FIG. 4  is a schematic view of a water purification system comprising the apparatus for generating high frequency electromagnetic field shown in  FIG. 1  according to an embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
       [0023]    Reference will now be made in detail to the presently preferred embodiments of the invention as illustrated in the accompanying drawing. 
         [0024]      FIG. 1  is a block diagram showing an apparatus for generating high frequency electromagnetic field according to an embodiment of the present invention. 
         [0025]    As schematically shown in  FIG. 1  the apparatus for generating high frequency electromagnetic field  100  comprises a user input unit  10 , a controller  20 , a quantum field generator  30 , a wave generator  40  and a high-frequency output unit  50 . 
         [0026]    The user input unit  10  is to receive input from users, having user interface that the user can input or select output voltage of the quantum field generator  30  and frequency of the wave generator  40 . 
         [0027]    The user input unit  10  can be constructed to allow the user to select the output voltage and the frequency of the quantum field directly. In another case, by setting predetermined voltage and frequency into multi levels, the user input unit  10  can be constructed to allow the user to select the level among the multi levels which the user wants. Furthermore, it also can be constructed to allow the user to select types of contaminants. 
         [0028]    The controller  20  controls the level of the output voltage and the output frequency of a high-frequency electromagnetic field generator  100  by outputting the control signal to the quantum field generator  30  and the wave generator  40  mentioned below according to the input from the user input unit  10 . 
         [0029]    When the user input unit  10  has the multi level for selection of the output voltage and frequency, the controller  20  saves control values corresponding to the multi level. The control values are used to control the quantum field generator  30  and the wave generator  40  In another case, the controller saves the values of wave frequency and voltage level in advance, which have good efficiency for purifying contaminants in accordance with types and characteristics of contaminants. The controller  20  controls the quantum field generator  30  and the wave generator  40  to output the wave frequency and the voltage corresponding to the contaminants selected by the user input unit  10 . 
         [0030]    The quantum field generator  30  which is to generate high-voltage quantum field, is constructed to adjust the output voltage by control of controller  20 . 
         [0031]    The wave generator  40 , which is to generate high-frequency signals and connect those to the quantum field generator  30 , is constructed to adjust the frequency by control of controller  20 . 
         [0032]    The matched high-voltage quantum field with high frequency is scanned by the high-frequency output unit  50 . 
         [0033]    As explained above, this present invention is able to respond appropriately to the types and characteristics of contaminants by outputting quantum and waves being suitable for primary contaminants corresponding to the selection of the user. 
         [0034]      FIG. 2  is a block diagram showing a quantum field generator  30 , a wave generator  40  and a high-frequency output unit  50  according to an embodiment of the present invention.  FIG. 3  is a detailed circuit diagram of  FIG. 2 . 
         [0035]    As schematically shown in  FIG. 2 , the quantum field generator  30  comprises a primary power supply  31 , a variable voltage generator  33 , a high-voltage conversion unit  35 , and a voltage multiplying rectifier circuit unit  37 . 
         [0036]    The primary power supply  31  usually uses commercial power AC 220V, 60 Hz to apply power to the quantum field generator  30 . As shown in  FIG. 3 , a switch is connected with fuse, just in case of short-circuit in the secondary power supply and output unit. 
         [0037]    The variable voltage generator  33  is to adjust the second voltage, varying output voltage in the range of 0V to 220V, according to control of the controller  20  described hereafter. As shown in  FIG. 3 , the variable voltage generator  33  can be constructed by using slide transformer  33   a  which has small capacity considering that the second voltage is extra high voltage. 
         [0038]    The high-voltage conversion unit  35  is to convert low output voltage of the variable voltage generator  33  to extra-high voltage. As shown in  FIG. 3 , Having the transformer  35   a,  the primary voltage 220V is boosted to the second voltage 10 Kv. The second voltage is variable adjusted 0 to 10 kV continuously by voltage of the first slide transformer. 
         [0039]    The level of the second voltage, working directly on intensity of magnetic field, is able to be various values, but in this embodiment it is fixed on  10  kV considering insulation and safety. 
         [0040]    The continuously variable of the second voltage is essential for the optimized output. The capacity of the transformer for boosting is decided by required intensity of the magnetic field. 
         [0041]    The voltage multiplying rectifier circuit unit  37  is to generate extra-high electromagnetic field by rectifying and multiplying the voltage. As shown in  FIG. 3 , the voltage multiplying rectifier  37  is designed to multiply output voltage reaching 40 kV by using quadruple voltage rectification method with condensers and switching diodes having high voltage and high speed. The output voltage in the range of 0 to 40 kV is generated by adjusting the first slide transformer. 
         [0042]    In this embodiment, Zener diodes are applied for the protection of circuit. The current flows suddenly when the voltage reversed to PN-junction is applied to diodes. Zener effect is to occur tunneling effect of quantum mechanics that electrons in p-type semiconductor pass through small holes of insulated regions as reverse voltage gets higher. The higher reverse voltage is applied, the wider tunnel will be. Therefore, the current increases, but the voltage remains unchanged. In summary, The Zener diode is a device to make constant voltage using the phenomenon that the voltage remains unchanged mentioned above. 
         [0043]    The condenser of the voltage multiplying rectifier circuit unit  37  has characteristics that electrical charges are charged when DC current is applied, and the electrical charges are discharged when it connected with circuit having reversed voltage to that charged voltage. As these steps are repeated rapidly, AC current caused by the charging and discharging flows at both ends of the condenser. 
         [0044]    The extra-high quantum field is generated at the quantum field generator  30  through these steps. 
         [0045]    The wave generator  40  generates variable high-frequency signals and connects those signals to the quantum generator  30 , which is explained with  FIG. 2  and  FIG. 3  hereafter. 
         [0046]    As shown in  FIG. 2 , the wave generator  40  comprises a secondary power supply  41 , a high-frequency variable generator  43 , a wave amplifier  45 , and a matching unit  47 . 
         [0047]    The primary power supply  31  supplies power the secondary power supply  41 . The secondary power supply  41  converts the power applied from the primary power supply  31  into DC power and supplies the DC power to the high-frequency variable generator  43  and the wave amplifier As shown in  FIG. 3 , two constant-current diodes and two constant-voltage diodes is designed to the Darlington circuit having low-voltage FET and the control transistor. Rectifying commercial power of AC 220V, the circuit converts AC 220V into DC 12V. Thus, the circuit uses this converted DC power in the range of limited current capacity. 
         [0048]    The high-frequency variable generator  43  is to generate high-frequency signals by adjusting the frequency according to the control of the controller  20  described hereafter. As shown in  FIG. 3 , the high-frequency variable generator  43  oscillates high frequency in the range of 16 KHz to 40 MHz using UJT (Unijunction Transistor) and IC (Ingrated Circuit) for high frequency. 
         [0049]    The UJT has a little amount of leakage current and low saturation voltage. Moreover, the UJT is stable to temperature change. Therefore, the oscillation circuit comprising the UJT operates stably. 
         [0050]    The high-frequency variable generator  43  changes the frequency, varying values of resistances and capacity of condensers connected to the circuit shown in  FIG. 3 . In this embodiment, the values of resistances and capacity of condensers are adjusted at the same ratio for stable oscillation, and the variable resistances and variable condensers are used. 
         [0051]    The wave amplifier  45  is to amplify high-frequency signals outputted from the high-frequency variable generator  43 . As shown in  FIG. 3 , the wave amplifier  45  amplifies the high-frequency signals using high-speed switching transistor and OSC (Oscilloscope). In embodiment of  FIG. 3 , the oscillation frequency is in the range of 16 KHz to 40 MHz. The frequency is used to 30 MHz for efficiency and stability of the amplified frequency amplitude. 
         [0052]    The matching unit  47  is to connect the high-frequency waves from the wave amplifier  45  with the quantum field generator  30 . As shown in  FIG. 3  the matching unit is composed of high withstand-voltage resistances, high-frequency condensers and high-frequency diodes, which are combined in series or parallel to protect from insulation. 
         [0053]    The high-frequency output unit  50  outputs the high-frequency quantum field of extra high voltage which is matched by the matching unit  47 . As shown in  FIG. 3 , the high-frequency output unit  50  comprises a high-frequency discharge electrode discharging the high-frequency quantum field. The high-frequency output unit  50  can be constructed with supermalloy to scan the high-frequency magnetic field with maximum output voltage of 40 KV and 30 MHz. The supermalloy, which is an alloy added Cr to the alloy of Fe and Ni, has high magnetic susceptibility, small coercive force, small Hysteresis loss and small eddy current. 
         [0054]    As explained above, this present invention has good efficiency for purifying water, controlling the output voltage of the quantum field generator  30  and output frequency of the wave generator  40  according to contaminants by the input of the user input unit  10 . 
         [0055]    For instance, an experiment shows a result that the efficiency is highest when the quantum field of 22KV, 1.64 MHz is scanned to wastewater including lots of non-biodegradable compounds of textile wastewater (Soluble Chemical Oxygen Demand increases 1.14 times and non-degradable materials are dualized). The another experiment shows a result that the efficiency is highest when the quantum field of 24KV, 1.64 MHz is scanned to wastewater including lots of non-biodegradable organic compounds of domestic wastewater(Soluble Chemical Oxygen Demand increases 2.25 times and non-degradable materials, which are difficult to degrade biologically, are dualized). 
         [0056]    The controller  20  can make the quality of purifying wastewater high by saving proper control values in advance in accordance with types and characteristics of contaminants. 
         [0057]      FIG. 4  is a schematic view of a water purification system comprising the apparatus for generating high frequency electromagnetic field  100  mentioned above. 
         [0058]    As shown in  FIG. 4 , the water purification system comprises the apparatus for generating high frequency electromagnetic field  100  and a reactor  200 . 
         [0059]    The reactor  200  comprises a diffuser for air bubbling  210  and an earth electrode  220 . The high-frequency discharge electrode  51  comprises a protective cap  53 . 
         [0060]    When the apparatus for generating high frequency electromagnetic field  100  scans the extra high-frequency electromagnetic field which is suitable for contaminants and having range of 1 KHz to 400 MHz and the diffuser  210  bubbles airs in wastewater including various kinds of non-biodegradable compounds, anions and cations are dissociated, maintaining an eletro-equilibrium. 
         [0061]    Therefore, hydrated organic compounds and complex ions of heavy metals are separated from hydration layer, and gas like reaction occurs in the water by these compounds and ions. In this condition, dissociation and ionization of contaminants are accelerated when polar organic molecules are escaped from the hydration layer by aeration using external underwater fan. It is because organic matters, complex ions, anions and cations are activated to higher energy level as V.O.C is oxidized and decomposed in the air in an instant. 
         [0062]    Furthermore, the organic combined insoluble Phosphorus which is difficult to be decomposed is mineralized into ortho form and transforming soluble sludge, it makes easier to treat. Moreover, the water purification system nitrifies by converting Nitrogen to Proteins, and emits in the form of gas. 
         [0063]    This present invention activates dissociation and ionization of contaminants by varying frequency and voltage to be suitable for contaminants to adjust quantum field intensity. 
         [0064]    As mentioned above, the present invention is to provide the apparatus with reasonable cost which has good efficiency for treatment of wastewater according to characteristics of contaminants and has no risk of occurrence of the secondary contamination, and to also provide the system having thereof. Although a few exemplary embodiments have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.