Abstract:
There is provide a portable apparatus for purifying waste water, which comprises: a first filter for primarily filtering contaminated water, a tank for sterilizing the contaminated water flowing through the first filter and for generating a precipitate by cohering impurities contained in the contaminated water by use of a composite precipitator including a plurality of elements, and a second filter for secondarily filtering the contaminated water flowing from the tank, to extract drinking water, wherein the tank uses a pump to repeatedly circulate the contaminated water through the first filter and the tank and to agitate the contaminated water with the composite precipitator being put into the tank at a predetermined time, and the tank includes a first jet pipe and a second jet pipe which form a number of spray nozzles to protrude from their outer surfaces in different orientation to form a vortex in the tank, and wherein only the single pump is used for all of the inflow and sterilization of the contaminated water and the circulation and agitation upon the precipitation and the extraction of the drinking water, thereby providing a simple structure that one tank solves a multi-step process, making it easy to move and install the apparatus, and reducing the manufacturing costs thereof.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims the benefit of Korean Patent Application No. 10-2007-0079341, filed Aug. 8, 2007, the disclosure of which is hereby incorporated herein by reference in its entirety. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Technical Field 
         [0003]    The present invention relates to a portable apparatus for purifying waste water to extracting drinking water by removing impurities contained in contaminated water, and more particularly, to a portable apparatus for purifying waste water, which comprises a first filter for primarily filtering impurities, a tank for sterilizing contaminated water flowing from the first filter and generating a precipitate by circulating and agitating the contaminated water and a composite precipitator, and a second filter connected to the tank, for secondarily filtering the impurities of the contaminated water, wherein the inflow of the contaminated water, the extraction of the drinking water by filtering the contaminated water and the agitation of the contaminated water and the composite precipitator are solved by using a single same pump, and the tank includes first and second jet pipes for forming a vortex to smoothly agitate the contaminated water and the composite precipitator. 
         [0004]    2. Discussion of Related Art 
         [0005]    In accordance with a conventional apparatus for purifying waste water, a coagulant is put in waste water, to coagulate impurities contained in the waste water. The coagulated impurities are precipitated in a precipitation tank through a long time. Purified water which is present above the precipitated impurities is allowed to again pass through a filter, to obtain completely purified water. 
         [0006]    However, in the conventional apparatus for purifying waste water, a number of precipitation tanks are to be installed in large dimensions. When waste water is subject to a multi-step purification process, the volume and installation area increase so that a large space is needed. Moreover, since the waste water is to pass through a number of precipitation tanks many times, a precipitation time is very long and therefore a very long time is required for purifying the waste water 
       SUMMARY OF THE INVENTION 
       [0007]    Therefore, the present invention is directed to provide a portable apparatus for purifying waste water, which extracts purified drinking water by filtering contaminated water through a first filter using a pre filter and a second filter using a PCP filter, and which is configured to allow the contaminated water flowing out from the first filter to flow into a tank, to sterilize the contaminated water and put a composite precipitator including a plurality of elements into the tank so that impurities contained in the contaminated water are cohered to generate a precipitate, and to extract the drinking water through the second filter, in which a single same pump is used to solve the inflow of the contaminated water, the extraction of the drinking water by filtering the contaminated water and the circulation and agitation of the contaminated water and the composite precipitator, thereby simplifying a conventional process using a number of tanks, improving the effects of filtering/sterilization/agitation to purify contaminated water for drinking water, reducing the manufacturing costs according to the simplification of the constituents and the removal of the unnecessary process, and making it easy to be moved. 
         [0008]    The other features and advantages of the present invention will be described below and become more apparent by an exemplary embodiment(s) thereof. Further, the objects and advantages of the present invention will be realized by means and combination thereof set forth in the claims. 
         [0009]    An exemplary embodiment of the present invention provides a portable apparatus for purifying waste water, which comprises: a first filter for primarily filtering impurities contained in contaminated water flowing in by a pump; a tank connected to the first filter, for sterilizing the contaminated water by a chlorine disinfectant put inside the tank and generating a cohered precipitate by putting a composite precipitator to be mixed with the contaminated water and agitating the composite precipitator and the contaminated water; and a second filter connected to the tank, for secondarily filtering the contaminated water circulated and agitated by the pump, to extract purified drinking water. 
         [0010]    The present invention to achieve the above object has the following characteristics: 
         [0011]    In accordance with an exemplary embodiment, the present invention provides a number of first filters for primarily filtering foreign materials contained in contaminated water flowing in by a pump; a tank connected to the first filters, for sterilizing the contaminated water by using a chlorine disinfectant put into the tank and generating a precipitate cohered by putting a composite precipitator to be mixed with the contaminated water and agitating the composite precipitator and the contaminated water; and a number of second filters connected to the tank, for secondarily filtering the circulated and agitated contaminated water by the pump, to extract purified drinking water. 
         [0012]    Further, the tank may be connected to the pump so as to have a repeated circulation structure of flowing the contaminated water mixed with the composite precipitator out and thereafter flowing it into the tank, wherein, during the circulation process, the composite precipitator is put in the tank for a predetermined time so that the composite precipitator and the contaminated water are circulated and agitated. 
         [0013]    Further, the tank may be on standby until impurities are precipitated by turning off the pump for 30 minutes after operating the pump for a predetermined time. 
         [0014]    Further, the composite precipitator may use a carbon cohesive agent and aluminum sulfate which is dissolved in distilled water, or a coagulant which combines the carbon cohesive agent and aluminum sulfate. 
         [0015]    Further, to purify the water of 10 l, the portable apparatus for purifying waste water may use the chlorine disinfectant of 100 mg and the composite precipitator formed of the carbon cohesive agent of 4 g and the aluminum sulfate of 1.3 g which is dissolved in the distilled water, or the chlorine disinfectant of 100 mg and the composite precipitator formed of the coagulant of 5.3 g resulted from the combination of the carbon cohesive agent and aluminum sulfate. 
         [0016]    Further, the tank may be operatively connected to each first filter by a flow pipe, the flow pipe may be connected to a distributor to be divided into a first jet pipe and a second jet pipe in the tank, and the first jet pipe and the second jet pipe may include a number of spray nozzles which are spaced apart from one another by a predetermined distance in a length direction and which are formed to protrude from the outer surfaces of the first and second jet pipes in different orientation, to spray the contaminated water inside the tank and to occur a vortex inside the tank so that the composite precipitator and the contaminated water are agitated. 
         [0017]    Further, the portable apparatus for purifying waste water may connect the single pump to the tank, the first filter and the second filter, wherein, upon inflow of the contaminated water, the pump is used to suck in and flow the contaminated water into the tank through the first filter; upon the mixing of the contaminated water and the composite precipitator, the pump is used to repeatedly circulate the contaminated water, which flows out from the tank, to the tank so that the composite precipitator and the contaminated water are agitated inside the tank; and upon the extraction of the drinking water, the pump is used to flow the contaminated water circulated and agitated in the tank into the second filter so that the drinking water is extracted through the second filter, thereby enabling the inflow and agitation of the contaminated water and the extraction of the drinking water by the single pump. 
         [0018]    Further, the first filter may use a pre filter which is a chemically treated general textile fabric. 
         [0019]    Further, the second filter may comprise a first filter housing and a second filter housing in a dual pipe shape, and a PCP filter inserted in the space formed between the first and second filter housings, wherein the PCP filter has a structure of sequentially bonding a first pre filter, an activated carbon fiber and a second pre filter, and wherein, after the contaminated water flowing from an outer surface of the first filter housing sequentially passes through the PCP filter and the second filter housing, it flows out through one side in the second filter housing. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0020]    The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which: 
           [0021]      FIG. 1  is a process block diagram of a portable apparatus for purifying waste water according to an exemplary embodiment of the present invention; 
           [0022]      FIG. 2  is a process circuit diagram upon inflow of contaminated water in the portable apparatus for purifying waste water according to the embodiment of the present invention; 
           [0023]      FIG. 3  is a process circuit diagram of circulation and agitation upon sterilization and precipitation in the portable apparatus for purifying waste water according to the embodiment of the present invention; 
           [0024]      FIG. 4  is a process circuit diagram upon extraction of drinking water in the portable apparatus for purifying waste water according to the embodiment of the present invention; 
           [0025]      FIG. 5  is a front perspective view of the portable apparatus for purifying waste water according to the embodiment of the present invention; 
           [0026]      FIG. 6  is a rear perspective view of the portable apparatus for purifying waste water according to the embodiment of the present invention; 
           [0027]      FIG. 7  is a partial perspective view of first and second jet pipes in the portable apparatus for purifying waste water according to the embodiment of the present invention; and 
           [0028]      FIG. 8  is a perspective view of a structure of a second filter in the portable apparatus for purifying waste water according to the embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0029]    The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a preferred embodiment(s) of the invention are shown. It should be understood that terms and words used in the present specification and claims should not be interpreted as having a meaning defined in commonly used dictionaries and the terms and words should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art, without departing from the technical scope of the present invention, based on the principle that inventors can properly define concepts of the terms to describe their inventions in the best manner. 
         [0030]    Accordingly, while an exemplary embodiment(s) of the present invention is capable of various modifications and alternative forms, an embodiment(s) of the present invention are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit an exemplary embodiment(s) of the invention to the particular forms disclosed, but on the contrary, an exemplary embodiment(s) of the invention are to cover all modifications, equivalents, and alternatives falling within the scope of the invention. 
         [0031]    A portable apparatus for purifying waste water in accordance with a preferred exemplary embodiment of the present invention will be described with referent to  FIGS. 1 through 8 . 
         [0032]    As illustrated, in the portable apparatus for purifying waste water, contaminated water sucked in by a pump  52  sequentially passes through a first filter  10 , a tank  30  and a second filter  20  for filtering foreign materials contained in the contaminated water. In the tank  30 , the contaminated water is sterilized and a composite precipitator is used to generate an impurity precipitate so that the contaminated water is purified. The pump  52  is used to repeatedly circulate the contaminated water through the first filter  10  and the tank  30  so that the composite precipitator and the contaminated water are agitated. The portable apparatus for purifying waste water comprises the first filter  10 , the tank  30 , the second filter  20 , the pump  52 , the composite precipitator, a flow pipe, first jet pipes  50  and  50 ′, second jet pipes  51  and  51 ′, and spray nozzles  53 . 
         [0033]      FIG. 1  is a process block diagram of the portable apparatus for purifying waste water according to the embodiment of the present invention. As illustrated in  FIGS. 1 and 2 , when the contaminated water is first allowed to flow in by opening a valve V°, the contaminated water flows through a flow pipe  60  and flows in by the pump  52  connected to the flow pipe  60 , to move to a flow pipe  62 . The moving contaminated water is stopped by a valve V 3  positioned in the flow pipe  62  and moves to a flow pipe  63 . Subsequently, the contaminated water flows a number of the first filters  10  through open valves V 5  and V 6  connected to the flow pipe  63  so that the foreign materials contained in the contaminated water are primarily filtered. A pre filter produced by applying a chemical treatment to a general textile fabric is used as the first filter  10 . 
         [0034]    The filtered contaminated water is stored in the tank  30  through flow pipes  63 ′ and  65  connected to the first filter  10  through valves V 7  and V 8  of the first filter  10 . After the contaminated water is on standby for 30 minutes from the time when a chlorine disinfectant is put in the tank  30  where the contaminated water is stored, it is sterilized. 
         [0035]    The contaminated water of the tank  30  flows out through a flow pipe  61  and subsequently is allowed to flow along a flow pipe  62  by driving the pump  52  connected to the flow pipe  61  so that the contaminated water again flows into the tank  30 , to repeat a circulation process. 
         [0036]    The process of repeating circulation is to agitate the contaminated water stored and sterilized in the tank  30  with the composite precipitator. The composite precipitator is put into the tank  30  after the chlorine disinfectant is put therein. In the embodiment of the present invention, a carbon cohesive agent and aluminum sulfate dissolved in distilled water is used as the composite precipitator. 
         [0037]    Further, the composite precipitator may use a coagulant combining the carbon cohesive agent and aluminum sulfate. 
         [0038]    After the composite precipitator is put into the tank  30 , the pump  52  is driven to actively circulate and agitate the contaminated water and the composite precipitator in the tank  30 . 
         [0039]    After the contaminated water and the composite precipitator are circulated and agitated by the pump  52 , the pump  52  stops operation and is on standby for 30 minutes until the foreign materials contained in the contaminated water are cohered and precipitated. 
         [0040]    When the aforementioned process ends, the contaminated water is allowed to pass through the second filter  20  by flow pipes  61  and  66  so that the contaminated water is secondarily filtered to extract drinkable drinking water through a flow pipe  68 . The second filter  20  uses a PCP filter which is formed by sequentially bonding a pre filter  13   a,  an activated carbon fiber  13   b  and a pre filter  13   c  in one body and which is inserted inside a filter housing having a dual pipe shape. 
         [0041]    Further, a number of valves are formed in the flow pipes for interconnecting the pump  52 , the first filter  10 , the tank  30  and the second filter  20 , to control the direction of allowing the contaminated water to flow in is or out. 
         [0042]      FIG. 2  is a process circuit diagram upon the inflow of the contaminated water in the portable apparatus for purifying waste water in accordance with the embodiment of the present invention. The sequence in which the contaminated water flows in is illustrated. After the contaminated water flows in through the flow pipe  60  by operating the pump  52 , the contaminated water passes through a plurality of first filters  10  through the flow pipes  62  and  63  connected to the pump  52 . 
         [0043]    Thereby, the foreign materials contained in the contaminated water are primarily filtered, and the filtered contaminated water sequentially moves to the flow pipes  63 ′,  64  and  65  connected to the first filters  10 , to flow into and to be stored in the tank  30 . 
         [0044]      FIG. 2  indicates a movement path of the contaminated water upon the inflow thereof. As illustrated in  FIG. 2 , a number of valves V 5 , V 6 , V 7 , V 8  and V 9  are to be opened from the time when the contaminated water flows in to the time when it reaches the tank  30  by the pump  52  and the first filters  10  while the other valves are to be closed. 
         [0045]      FIG. 3  is a process circuit diagram of the circulation and agitation upon the sterilization and precipitation in the portable apparatus for purifying waste water in accordance with the embodiment of the present invention.  FIG. 3  shows a path of the contaminated water to be circulated and agitated when it is sterilized and precipitated in the tank  30 . 
         [0046]    The contaminated water sterilized in the tank  30  flows out from the tank  30  to the flow pipe  61  which connects the tank  30  and the pump  52 . Upon the outflow of the contaminated water, the valve V 2  positioned in the flow pipe  61  is to be opened and the valve V 1  positioned in the flow pipe  60  used to allow the contaminated water to first flow in, as illustrated in  FIG. 2 , is to be closed. That is, the flow pipe  61 , which allows the contaminated water flowing out from the tank  30  to flow, is connected to the pump  52 , and the contaminated water sequentially moves through a number of the flow pipes  62  and  65  by the driving of the pump  52 , to again flow into the tank  30 . 
         [0047]    The aforementioned circulation repeatedly occurs by using the pump  52 . Whenever the flow of the contaminated water circulates, the agitation of the contaminated water and the composite precipitator put into the tank  30  is activated, to improve the effect of generating the cohered precipitate. 
         [0048]    Further, as illustrated in  FIG. 3 , when the contaminated water is circulated and agitated with the composite precipitator and repeatedly flows in and out the tank  30 , it does not pass through the first filters  10 , unlike the first inflow of the contaminated water as illustrated in  FIG. 2 . 
         [0049]      FIG. 4  is a process circuit diagram upon the extraction of the drinking water in the portable apparatus for purifying waste water in accordance with the embodiment of the present invention. There is indicated the sequence of extracting the drinking water from the contaminated water which is sterilized and has the precipitated foreign maters. 
         [0050]    After the processes of  FIGS. 2 and 3 , the driving of the pump  52  stops to be on standby for 30 minutes until a cohesive mass of the foreign materials is precipitated. 
         [0051]    After the precipitation, in the same manner as  FIGS. 2 and 3 , using the flow pipe  61  which is used to circulate and agitate the contaminated water and the composite precipitator in  FIG. 2 , the pump  52  connected to the flow pipe  61  is driven to suck in the contaminated water being present in the tank  30 . Subsequently, the contaminated water passes through the second filters  20 , through the flow pipe  66  connected to the pump  52  and the second filters  20 . 
         [0052]    The second filters  20  secondarily filter the foreign materials, to extract drinkable water. 
         [0053]    To describe the flow path in more detail, after moving through the flow pipe  66  connected to the pump  52 , the contaminated water passes through a number of the second filters  20  by a plurality of valves V 11  and V 12  positioned in a flow pipe  67 . The contaminated water passing through the second filters  20  moves to the flow pipe  68  by valves V 13  and V 14  of a flow pipe  67 ′ connected to the second filters  20 , to extract the drinking water. 
         [0054]    Further, the pump  52  is used for all of the inflow of the contaminated water, the agitation of the contaminated water and the composite precipitator, and the extraction of the purified drinking water as illustrated in  FIGS. 2 ,  3  and  4 . 
         [0055]      FIG. 5  is a front perspective view of the portable apparatus for purifying waste water according to the embodiment of the present invention and  FIG. 6  is a rear perspective view thereof.  FIGS. 5 and 6  are perspective views of modeling the process circuits illustrated in  FIGS. 2 ,  3  and  4 , according to the embodiment of the present invention. 
         [0056]      FIG. 7  is a partial perspective view of the first and second jet pipes in the portable apparatus for purifying waste water according to the embodiment of the present invention. As illustrated, the flow pipe  65  to which the contaminated water moves to flow into the tank  30  is connected to a distributor  40  through the inside of the tank  30 . 
         [0057]    The distributor  40  is divided into a number of jet pipes in the direction of the length of the tank  30  and is positioned through and inside the tank  30 . 
         [0058]    The distributor  40  comprises a pair of the first jet pipes  50  and  50 ′ and a pair of the second jet pies  51  and  51 ′. The spray nozzles  53  are formed to protrude from the outer surfaces of the first jet pipes  50  and  50 ′ and the second jet pipes  51  and  51 ′. The spray nozzles  53  are spaced apart from one another by a predetermined distance in the direction of the length of the first and second jet pipes  50 ,  50 ′,  51  and  51 ′. The contaminated water flowing through the first and second jet pipes  50 ,  50 ′,  51  and  51 ′ in the length direction flows into the tank  30 . 
         [0059]    Further, the pair of the first jet pipes  50  and  50 ′ are positioned to be at the lower inside the tank  30 , the pair of the second jet pipes  51  and  51 ′ are positioned to be above the first jet pipes  50  and  50 ′ in the tank  30 , and the orientation of the spray nozzles  53  protruding from the first jet pipes  50  and  50 ′ is differently formed that of the spray nozzles  53  protruding from the second jet pipes  51  and  51 ′. As a result, upon jetting the contaminated water through the first and second jet pipes  50 ,  50 ′,  51  and  51 ′, a vortex is formed inside the tank so that the contaminated water and the composite precipitator are agitated. 
         [0060]      FIG. 8  is a perspective view of a structure of the second filter in the portable apparatus for purifying waste water according to the embodiment of the present invention. As illustrated, the second filter  20  has a dual pipe shape. The first and second filter housings  11  and  12  have one end being opened and have a cylindrical shape with an inner hollow part and the second filter housing  12  is inserted in the first filter housing  11  to have the dual pipe shape. Further, a PCP filter  13  is interposed in a space  14  between the first and second filter housings  11  and  12 . The PCP filter  12  has a structure in that a first pre filter  13   a,  an activated carbon fiber  13   b  and a second pre filter  13   c  are sequentially bonded to form one body. 
         [0061]    The PCP filter  13  repeatedly contacts to the inter surface of the first filter housing  11  and the outer surface of the second filter housing  12  alternately in each gentle curve and in a length direction of the PCP filter  13 . 
         [0062]    As for a filtering method, after the contaminated water flows in from the outside of the first filter housing  11  and moves to the inside of the second filter housing  12  through the PCP filter  13 , the contaminated water from which the foreign materials are filtered flows out through the open one side of the second filter housing  12 . 
         [0063]    Further, reference numbers V 10 , V 17 , V 4 , V 4 ′, V 15  and V 15 ′ which are shown in the drawings but not described indicate valves. The valve V 10  has a role of an outlet for eliminating the precipitate inside the tank  30 . The valve V 17  is to extract the drinking water after filtering the contaminated water by the portable apparatus for purifying waste water according to the embodiment of the present invention. The valves V 4  and V 4 ′ are to eliminate the foreign materials of the first filter  10 . The valves V 15  and V 15 ′ are to eliminate the foreign materials of the second filter  20 . 
         [0064]    As described above, the portable apparatus for purifying waste water according to the present invention extracts the purified drinking water by filtering the contaminated water through the first filter using a pre filter and the second filter using a PCP filter. The portable apparatus for purifying waste water is configured to allow the contaminated water flowing out from the first filter to flow into the tank, to sterilize the contaminated water in the tank, to cohere impurities contained in the contaminated water by putting the composite precipitator including a plurality of elements into the tank and to generate a precipitate, and then to extract the drinking water through the second filter. In accordance with the portable apparatus for purifying waste water, since the single same pump is used to solve the inflow of the contaminated water, the extraction of the drinking water by filtering the contaminated water, and the circulation and agitation of the contaminated water and the composite precipitator, the conventional process of using a number of tanks is simplified, the effects of filtering/sterilization/agitation to purify the contaminated water for the drinking water are improved, the manufacturing costs are reduced according to the simplification of the constituents and the removal of the unnecessary process, and it is easily moved. 
         [0065]    While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various modifications and alternative arrangements in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. The scope of the claims, therefore, should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.