• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Sewage treatment system comprising a compact block which in turn comprises at least three water purification columns (1, 2, 3): a first purification column (1), comprising a first filling material (4) ); a second scrubbing column (2), comprising a second filling material (5); a third scrubbing column (3), comprising a third filler material (6); wherein the second filling material (5) is constituted by a cationic resin and the third filling material (6) is constituted by an anionic resin, and wherein the first filling material (4) is selected from: sepiolite; zeolite; clay; active carbon, and; a combination of the above. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2551055A1
    申请号:ES201430692
    申请日:2014-05-12
    公开日:2015-11-13
    发明作者:Juan García López；Carlos RAD MORADILLO；Milagros NAVARRO GONZÁLEZ
    申请人:Consorcio Provincial De Residuos；
    IPC主号:
    专利说明:

    DESCRIPTION

    Wastewater treatment system and procedure

    Object of the invention 5 The present invention relates to a system and a wastewater purification process, especially indicated for the tertiary treatment of leachates with high organic load and high nitrates and metal cations. The system and the procedure are based on the joint combination of sepiolite columns and anionic and cationic resins, 10 embedded in a sand and gravel sandwich filtering bed.

    It has special application in the industry dedicated to the design, manufacture and marketing of wastewater treatment equipment, and in any industry whose activity involves the cleaning and disposal of wastewater waste. fifteen  Background of the invention
    The leachate treatment can be carried out quite successfully in suitable facilities (urban WWTPs, MBRs, membrane techniques, etc.), however, the high load of organic matter, the important presence of heavy metals that can act as inhibitors of The biological processes, as well as the high presence of nitrogen in different forms, forming part of organic compounds, ammonium and nitrates, means that, although the final yields are good, the chemical parameters that characterize the effluent are superior to those established by the regulations for its discharge to public channel. Therefore, the introduction of a tertiary treatment is advised. The proposed system is installed in a simple way, it is transportable and easy to use, as well as carrying a low investment and operating cost.

    The goodness of the ion exchange processes that the 30 resins have is well known, just as certain clays have great adsorption power.

    However, there is no record of the joint use of resins and clays as a tertiary treatment.
     35
    Within the clay minerals, it is sepiolite that achieves greater industrial use as an adsorbent. Sepiolite belongs to the group of the fibrous minerals of clay, specifically the paligorskite group, whose structural characteristic is to be formed by magnesium silicates with a fiber structure consisting of 6 units of tetrahedra and octahedra (TOT) that give rise to parallel channels to the fiber. The fibers of this mineral are 40 micrometers in length and nanometers of section appearing frequently grouped, so it is difficult to specify the size of the individual crystals. It is characterized, mainly by: a) having an extremely small particle size (less than 2 µm), b) a fiber morphology constituting sheets and c) by the presence of isomorphic substitutions, which give rise to the appearance of negative surface charge in the sheets, as well as the presence of weakly bound cations in the interlaminar space that compensate for the total mineral load. They have a huge surface area due to both the small particle size and the porosity of its structure. The theoretical specific area is calculated around 900 m2 g-1, although the accessible area is much lower (100-240 m2 g-1). Thanks to its structural channels it has great absorption power. Its large absorption capacity 50 makes it an important element for retaining particles of organic matter and suspended solids. It also presents, to a lesser extent, some adsorption capacity, with a cation exchange capacity of 20-35 cmol kg-1.

    Its main use is as absorbent for animal beds and soils; support in aerosols and aerogels for pesticides and fertilizers; for its adsorbent properties, in the purification of products from the oil or sugar industry; in filtration, flocculation and clarification processes, etc.
     5
    The sands and gravels, being forced the water to be treated by pumping, to pass through it, are able to reduce the speed and avoid the removal of the filling of the purification columns. The sand is siliceous in nature.

    The sand is a set of disintegrated rock particles of variable size (0.06-2 mm). The 10 DIN 4022 standard distinguishes fine sand (0.06-0.2 mm), medium (0.2-0.6 mm) and coarse sand (0.6-2 mm). It has multiple uses in different manufacturing processes, is a component of concrete and has applications as a filtering material in water treatment plants.
     fifteen
    Gravel is an aggregate of stony nature of varying size (> 2 mm). DIN 4022 distinguishes, in terms of grain size, fine gravel (2-6 mm), medium (6-20 mm) and coarse (20-60 mm). Its main use is as aggregate in the manufacture of concrete, protective coating on non-transitable flat roofs, and as filtering material in screeds and / or drains.
     twenty
    Synthetic resins are polymers formed from the condensation of styrene and divinyl benzene. These resins treated so that the appropriate functional groups are introduced into their structure, and are capable of removing cations and anions dissolved in the water. The manufacturing process consists of the mixture of styrene and divinyl benzene, and, by adding benzoyl peroxide and stirring the mixture at high speed, a large number of 25 small spheres of about a millimeter in diameter are formed on average, which are insoluble in water.

    These spheres are subsequently treated to achieve the incorporation into their structure of specific functional groups, which will act as active sites for the exchange of cations or 30 anions, depending on the load of these functional groups introduced into the resin.

    Thus, to produce a cationic resin, the resin obtained from the co-polymerization of styrene with divinyl benzene, with sulphonic acid or any of its derivatives is treated, which results in the incorporation of these negatively charged sulfonic groups on the surface of the Polymer R-HSO3- (R represents an alkyl functional group).

    An anionic resin is produced from the same co-polymer used in cationic resins, but surface activation is done by chloromethylation followed by amination of the polymer. The result is the incorporation of R3-N + surface amino groups, which are positively charged and are capable of retaining soluble anions through ion exchange reactions.

    Once the ion exchange capacity of the resins is saturated, they must be regenerated. This begins with a rinse, backwash or backwash, with water, from bottom 45 to the top through the purification columns, to avoid compacting the resin and facilitate its redistribution. Subsequently, regeneration is carried out with hydrochloric acid or sodium hydroxide depending on whether they are cationic or anionic resins, respectively.
    Description of the invention 50

    The present invention relates to a system and a wastewater treatment process.

    The wastewater purification system comprises a compact block which in turn comprises at least three columns of water purification:

     a first purification column, comprising a first filler material; 5

     a second purification column, comprising a second filler material;

     a third debug column, which comprises a third filling material;

    where the second filler material is constituted by a cationic resin and the third filler material is constituted by an anionic resin, and where the first filler material is selected from:
     sepiolite;
     zeolite;
     clay;
     active carbon;
     a combination of the above. twenty

    In a preferred embodiment, each purification column comprises at each of its ends a sandwich structure comprising at least two rigid and spaced apart perforated plates, where each perforated plate comprises an overlapping filtering mesh, and where the space between the Holed plates are filled with at least 25 fourth filling material.

    The fourth filling material is selected from:

    to. sand; 30
    b. gravel;
    C. A combination of the above.

    The purification columns are interconnected with each other by means of a set of pipes and valves that allow the wastewater to travel in series and / or in parallel, and in any direction (from top to bottom or from bottom to top), any combination of the water purification columns.

    According to an exemplary embodiment of the system:
     40
    a) each debug column:

     is connected by a first end of said purification column, and through a first connection pipe of said purification column, to a first water supply / collection pipe; Four. Five

     is connected by a second end of said purification column, and through a second connection pipe of said purification column, to a second water supply / collection pipe, where each second connection pipe is provided with a valve interconnection at the point of connection with the second end of its respective debug column;

    b) a wastewater supply pipe is connected, through a second general feed valve, to the first connection pipe of the first purification column;

    c) the second wastewater collection / collection pipeline is connected, 5 by means of a rinse valve, to the wastewater supply pipe.

    The wastewater supply pipe preferably comprises a first general feed valve, a flow regulating valve and a feed pump, in an arrangement prior to the second general feed valve.

    Typically, an auxiliary pipe is connected, through an auxiliary valve, to the wastewater supply pipe, for partial discharge of water that is not to be treated.
     fifteen
    Preferably, the connection of the first connection pipe corresponding to the first purification column with the first wastewater collection / collection pipeline is carried out through a first blocking valve, positioned between said first water supply / collection pipeline. waste and the connection point of the sewage feed pipe with said first connection pipe corresponding to the first purification column 20.

    Preferably, the second connection pipes corresponding to the first purification column and the second purification column are also linked to the first sewage collection / collection pipe. 25

    There are, for example, nine blocking valves.

    The second connection pipes corresponding to the first purification column and the second purification column respectively comprise a ninth blocking valve and a tenth blocking valve, located in an intermediate position between the link points of said second connection pipes. with the first water supply / collection pipe and with the second water supply / collection pipe.

    Typically, the first wastewater collection / collection pipeline comprises: 35

    Segunda a second blocking valve and a third blocking valve, located respectively upstream and downstream of the connection point between said first sewage collection / collection pipe and the second corresponding connection pipe with the first purification column; 40

     a fourth blocking valve and a fifth blocking valve, located respectively upstream and downstream of the connection point between said first sewage collection / collection pipe and the second corresponding connection pipe with the second purification column. Four. Five

    Typically, the second wastewater collection / collection pipe includes:

     a sixth blocking valve, located between the connecting points between said second wastewater collection / collection pipe and the second 50 connecting pipes corresponding to the first purification column and the second purification column;

     a seventh blocking valve and an eighth blocking valve, located respectively upstream and downstream of the link point between said second sewage collection / collection pipe and the second corresponding connecting pipe with the third purification column.
     5
    In a preferred embodiment of the present water purification system, the purification columns are removable, allowing their opening and replacement of the filler materials of each purification column.

    The present invention also relates, as already mentioned, to a method of wastewater purification comprising circulating a wastewater through at least a first purification column, a second purification column and a third column Debugging, where:

    a) the passage of water through a first filler material comprised in the first purification column, causes the removal of particles of organic matter and suspended solids,

    where said first filling material is selected from:
     twenty
     sepiolite;

     zeolite;

     clay; 25

     active carbon;

     a combination of the above;
     30
    b) the passage of water through a cationic resin comprised in the second purification column, causes the removal of residual water cations;

    c) the passage of water through an anionic resin comprised in the third purification column results in the removal of anions from the wastewater; 35

    where additionally:

     the passage of wastewater through a fourth filling material comprised in a sandwich structure at the ends of the purification columns, reduces the speed of the water and allows retention in said fourth suspension material of suspended solids, where said Fourth filling material is selected from:
    or sand;
    or gravel 45
    or a combination of the above;

     perforated plates, located at the ends of the purification columns, said plates comprising filtering meshes, prevent the loss and run-off of filler material from the purification columns.

    The method also includes a rinsing stage of each purification column, for regeneration of the filling materials included in the purification columns, where said rinsing stage comprises circulating water through each purification column, in the opposite direction to the purification direction of wastewater, and independently for each purification column, so that the water used to rinse a purification column is not reused to rinse the other purification columns.

    Brief description of the figures
     10
    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, it is accompanied, as an integral part of said description, a set of drawings in which, for illustrative and non-limiting purposes, has represented the following:
     fifteen
    Figure 1: shows a schematic representation of an installation, according to the system of the invention, for use as a tertiary treatment and / or support for the treatment of water from collection wells or springs for agricultural uses or human consumption, according to the invention described.
     twenty
    Figure 2: shows a detail of a first end of the debug columns represented in Figure 1

    Figure 3: shows a detail of a second end of the debug columns represented in Figure 1. 25

    Figure 4: represents the flow of water to be treated in its route through the three purification columns.

    Figure 5: Represents a backwash cleaning cycle of the first purification column. 30

    Figure 6: represents a resin regeneration cycle of the second purification column.

    Figure 7: represents a resin regeneration cycle of the third purification column. 35

    The references of the figures are the following:

    1. First debug column.
    2. Second debug column. 40
    3. Third debug column.
    4. First filling material.
    5. Second filling material.
    6. Third filling material.
    7. Fourth filling material. Four. Five
    8. Holed plate.
    9. Mesh.
    10. First end.
    11. Second end.
    12. First connection pipes. fifty
    13. Second connection pipes.
    14. Wastewater supply pipe.
    15. First water supply / collection pipe.
    16. Second water supply / collection pipe.
    17. Auxiliary pipe.
    18. Interconnection valve.
    19. First general feed valve.
    20. Second general feed valve.
    21. First blocking valve. 5
    22. Second blocking valve.
    23. Third blocking valve.
    24. Fourth blocking valve.
    25. Fifth blocking valve.
    26. Sixth blocking valve. 10
    27. Seventh blocking valve.
    28. Eighth blocking valve.
    29. Ninth block valve.
    30. Tenth blocking valve.
    31. Rinse valve. fifteen
    32. Auxiliary valve.
    33. Flow regulation valve.
    34. Feed pump.
    Detailed Description 20

    The present invention relates, as already mentioned, to a wastewater treatment system, and to a wastewater treatment process.

    According to a preferred embodiment of the invention, the system comprises a compact block (preferably made of stainless steel) which in turn comprises three water purification columns (1, 2, 3).

    A first purification column (1), comprising a first absorbent / adsorbent filler material (4), preferably sepiolite. 30

    A second purification column (2), comprising a second filler material (5), preferably a cationic resin.

    A third purification column (3), comprising a third filler material (6), preferably an anionic resin.

    At a first end (10) and at a second end (11) of each purification column (1, 2, 3), there is a sandwich structure, composed of a fourth filling material (7), preferably sand and / or gravel, enclosed between at least two rigid holes (8). 40 Immediately in contact with said perforated plates (8), and in turn in contact with the fourth filling material (7), there is a mesh (9) that acts as a filter.

    According to a preferred embodiment, shown in the figures, the first end (10) and the second end (11) of the purification columns (1, 2, 3) comprise a double layer of fourth filling material (7) , where a first layer is formed by sand, and a second layer is formed by gravel.

    The granulometry of the sand is variable, although it preferably adopts values between 1 and 2 mm. fifty

    Gravel granulometry is equally variable, although it preferably adopts values between 20 and 40 mm.

    The mesh (9) used preferably has a weft size of less than 0.2 mm.

    At the first end (10) of the purification columns (1, 2, 3), a clearance of approximately 0.2 mm is preferably left between the perforated plate (8) closest to the filler material (4, 5, 6) and said filler material (4, 5, 6). 5

    Preferably, the dimensions of the purification columns (1, 2, 3) are approximately 1700 mm high and 300 mm in diameter.

    The debug columns (1, 2, 3) are commonly placed in an upright position, with their first end (10) facing up and their second end (11) facing down, as shown in the Figures.

    Each purification column (1, 2, 3) is connected at its first end (10), and through a first connection pipe (12), with a first supply / collection pipe of waste water (15).

    Likewise, each purification column (1, 2, 3) is connected at its second end (11), and through a second connection pipe (13), with a second waste water collection / collection pipe (16). twenty

    The entry of wastewater to be treated in the system is carried out by means of a wastewater supply pipe (14), connected by means of a second general supply valve (20) to the corresponding first connection pipe (12) to the first debug column (1). 25

    The second wastewater collection / collection pipe (16) is connected, via a rinse valve (31), to the wastewater supply pipe (14).

    The wastewater supply line (14) also comprises a first general supply valve 30 (19), a flow regulation valve (33) and a feed pump (34).

    An auxiliary pipe (17), connected to the wastewater supply pipe (14) by means of an auxiliary valve (32) allows to extract wastewater from the system before it enters the purification columns (1, 2, 3).

    The first waste water collection / collection pipe (15) is connected to the waste water supply pipe (14) through the first connection pipe (12) corresponding to the first purification column (1), and through of a first blocking valve (21) located in said first connection pipe (12) corresponding to the first purification column (1), said first blocking valve (21) located between the point of connection with the supply pipe of wastewater (14) and the point of connection with the first supply / collection pipe of wastewater (15).
     Four. Five
    The second connection pipe (13) corresponding to the first purification column (1), and the second connection pipe (13) corresponding to the second purification column (2), are also connected to the first supply / collection pipe of wastewater (15).
     fifty
    There is a second blocking valve (22) and a third blocking valve (23), located in the first supply / collection pipe of wastewater (15), and located respectively in an immediate position, upstream and downstream of the point of link
    with the second connection pipe (13) corresponding to the first debug column (1).

    Likewise, there is a fourth blocking valve (24) and a fifth blocking valve (25), also located in the first wastewater collection / collection pipe (15), and 5 located respectively in an immediate position, upstream and downstream of the link point with the second connection pipe (13) corresponding to the second purification column (2).

    There is a sixth blocking valve (26), located in the second pipe of 10 input / collection of wastewater (16), and located in an intermediate point between the point of connection with the second connection pipe (13) of the first debug column (1) and the link point with the second connection pipe (13) of the second debug column (2).
     fifteen
    Likewise, there is a seventh blocking valve (27) and an eighth blocking valve (28), located in the second wastewater collection / collection pipe (16), and located respectively in an immediate position, upstream and downstream of the point of connection with the second connection pipe (13) of the third debug column (3).
     twenty
    There is also a ninth blocking valve (29) and a tenth blocking valve (30), located respectively in the second connection pipe (13) of the first purification column (1) and in the second connection pipe (13) of the second purification column (2), at intermediate points to the connection points of said second connection pipes (13) with the first wastewater collection / collection pipe (15) and with the second 25 supply pipe / wastewater collection (16), respectively.

    As indicated in the previous paragraphs, the arrangement of the valves and pipes of a preferred embodiment of the water purification system object of the present invention is described. 30

    The valves (18-33) used in the preferred embodiment have a step of 1.5 inches in size, and, with the exception of the flow regulating valve (33), are ball type.
     35
    In said exemplary embodiment, the feed pump (34) preferably has nominal power and flow rates of 1.5 kW and 75 L / m respectively.

    However, all numerical values depend on the specific design of the system for each particular installation, according to the requirements of each installation. 40

    At the first end (10) of the purification columns (1, 2, 3), the sand-gravel sandwich structure has the following function:

    a) in a first phase, the gravel reduces the speed of the treated water at the inlet 45 of the purification columns (1, 2, 3), facilitating a longer contact time with the sand and reducing its removal;

    b) this facilitates a longer contact time with the absorbent and adsorbent material (sepiolite and resins) of the purification columns (1, 2, 3), in addition to retaining some thick particles;

    c) the removal of the resin spheres that could be dragged in the process starts is also avoided.

    At the second end (11) of the purification columns (1, 2, 3), the function of the gravel is to reduce the speed in counter-washing with clean water or in the regeneration of resins.

    The operation of the system of the invention, which is outlined in Figure 1, begins when the leachate object of the tertiary treatment enters through the first end (10) of the first purification column (1), leaves it at the second end ( 11), and penetrates through the first end (10) of the second debug column (2). Leave the second debug column (2) at its second end (11) to enter the third debug column (3) at its first end (10), leaving it at its second end (11) and 10 pouring into public channel .

    In order for the leachate to pass through the three purification columns (1, 2, 3), it is necessary to pump the leachate through a feed pump (34). The system has a flow regulation valve (33), preferably of manual type, to control the inlet of the leachate to be treated in the system.

    The whole set has a complex network of ball valves (18 - 32) that allow each of the three purification columns (1, 2, 3) to be isolated for the corresponding cleaning, counter-washing and regeneration work. twenty

    Said network of valves (18-32) is shown in Figures 1, 4, 5, 6 and 7.

    Figures 4, 5, 6, and 7 show the flow of water in its different operations (the bold type indicates that the ball valve is closed. The white color indicates that the valve is open). 25

    The wastewater path is represented by arrows, and the pipes through which the water circulates are represented by dashed lines.

    Figure 4 represents the normal path of the water to be treated. 30

    Note that, as mentioned, all valves are open except those shown in bold, which are closed. The figure shows how the wastewater is pumped and crosses the three purification columns (1, 2, 3). In dashed line and with arrows, the path of the water to be treated as it passes through the purification columns 35 (1, 2, 3) is represented. The direction of movement is from top to bottom.

    Figure 5 represents the regeneration flow of sepiolite, in the first purification column (1).
     40
    The closing of the ball valves in bold type ensures that the regenerative solution passes countercurrently only along the first purification column (1), in the bottom-up direction. The path in the sepiolite regeneration is represented by dashed line and arrows. The meaning is from bottom to top.
     Four. Five
    Figure 6 represents the regeneration flow of the cationic resin, in the second purification column (2).
    Figure 7 represents the regeneration flow of the anionic resin, in the third purification column (3). fifty

    The closing of the ball valves in bold type ensures that the regenerating solution passes countercurrently only along column 2 in the bottom-up direction (Figure 6). Idem for the third debug column (3), shown in Figure 7. The path in the
    Resin regeneration is represented by dashed line and arrows. The route is from bottom to top.
    In the process object of the present invention, it comprises, according to the preferred embodiment shown in the example of Figure 1, to pass a leach through a first purification column (1), filled with sepiolite, a second purification column (2 ), filled with cationic resin, and a third purification column (3), filled with anionic resin.The three purification columns (1, 2, 3) are communicated through a pipe system, as described, allowing the leachate to be treated by passing through the three 10 purification columns (1, 2, 3) before from its final discharge to public channel.A set of ball valves (18-32) allows each purification column to be isolated (1, 2, 3) and can be regenerated and / or replaced with the filling material, as shown in Figures 5, 6 and 7. 15According to the present procedure, regeneration and counter-washing is carried out in the opposite direction to the normal wastewater purification flow, that is, from the second end (11) to the first end (10) of each purification column (1, 2, 3).  twenty Normally, taking into account the preferential arrangement of the purification columns (1, 2, 3), this counter-washing is carried out from the bottom up of each purification column (1, 2, 3).
    The leachate to be treated in the purification columns (1, 2, 3) is introduced into the system by means of a feed pump (34). The system has a flow control valve (33), prior to the entry of water into the feed pump (34). The route of the leachate or water to be treated is shown in Figure 4.
    In relation to the detail shown in Figure 2, for the incoming leaching in each purification column (1, 2, 3), there is a compact structure, sandwich type, constituted, in the first end (10) of the columns of purification (1, 2, 3), by gravel filling, perforated metal plate (8) with interposed mesh (9), sand filler, and another perforated metal plate (8) interposed with mesh (9) interposed.
    In relation to the detail shown in Figure 3, there is a compact structure, type 35 sandwich, constituted, at the second end (11) of the purification columns (1, 2, 3), by filling sepiolite or resins (according to the column in question), perforated metal plate (8) with mesh interposed (9) interposed, sand filled, perforated metal plate (8) interposed with mesh (9) interposed, gravel filler, and other perforated plate (8) separation metal with interposed mesh (9). 40

    Finally, according to an embodiment of the system and the method of the present invention, the ball valves (20-32) are governed by electronic control equipment (not shown in the Figures).
     Four. Five
    Likewise, the flow regulating valve (34) can also be governed by an electronic control equipment (not shown in the Figures).

    Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated, for the appropriate purposes, that the materials, shape, size and arrangement of the described elements may be modified (by varying the dimensions or replacing, for example, sepiolite with zeolite, etc.), as long as this does not imply an alteration of the essential characteristics of the invention claimed below.
    55
    权利要求:
    Claims (15)
    [1]

    1. Wastewater purification system characterized in that it comprises a compact block which in turn comprises at least three water purification columns (1, 2, 3): 5
     a first purification column (1), comprising a first filler material (4);
     a second purification column (2), comprising a second filling material 10 (5);
     a third purification column (3), comprising a third filler material (6);
     fifteen
    where the second filler material (5) is constituted by a cationic resin and the third filler material (6) is constituted by an anionic resin, and where the first filler material (4) is selected from:
     sepiolite;
     zeolite; twenty
     clay;
     active carbon;
     a combination of the above.

    [2]
    2. Wastewater purification system according to claim 1, characterized in that each purification column (1, 2, 3) comprises at each of its ends (10, 11) a sandwich structure comprising at least two plates perforated (8) rigid and spaced apart, where each perforated plate (8) comprises a mesh (9) of superimposed filtering, and where the space between the perforated plates (8) is filled with at least a fourth filling material (7 ). 30

    [3]
    3. Wastewater treatment system according to claim 2, characterized in that the fourth filling material (7) is selected from:
    to. sand; 35
    b. gravel;
    C. A combination of the above.

    [4]
    4. Wastewater treatment system according to claim 1, characterized in that the treatment columns (1, 2, 3) are interconnected with each other by means of a set of pipes and valves that allow the wastewater to run in series and in parallel, and in any direction, any combination of the water purification columns (1, 2, 3).

    [5]
    5. Wastewater treatment system according to claim 4, characterized in that:
    d) each debug column (1, 2, 3):
     is connected by a first end (10) of said debug column (1, 50 2, 3), and through a first connecting pipe (12) of said debug column (1, 2, 3), to a first water supply / collection pipe (15);
     is connected by a second end (11) of said debug column (1, 2, 3), and through a second connecting pipe (13) of said debug column (1, 2, 3), to a second water supply / collection pipe (16), where each second connecting pipe (13) is provided with an interconnection valve (18) at the point of connection with the second end (11) of its respective purification column ( 1, 2, 3);
    e) a wastewater supply pipe (14) is connected, through a second general feed valve (20), to the first connection pipe (12) of the first purification column (1); 10
    f) the second wastewater collection / collection pipe (16) is connected, via a rinse valve (31), to the wastewater supply pipe (14).
     fifteen
    [6]
    6. Wastewater purification system according to claim 5, characterized in that the wastewater supply pipe (14) comprises a first general feed valve (19), a flow regulating valve (33) and a feed pump (34), prior to the second general feed valve (20). twenty

    [7]
    7. Wastewater purification system according to claim 5, characterized in that an auxiliary pipe (17) is connected, through an auxiliary valve (32), to the wastewater supply pipe (14).
     25
    [8]
    8. Wastewater purification system according to claim 5, characterized in that the link of the first connection pipe (12) corresponding to the first purification column (1) with the first water supply / collection pipe (15) waste is carried out through a first blocking valve (21), positioned between said first waste water collection / collection pipe (15) and the point of 30 connection of the waste water supply pipe (14) with said first connecting pipe (12) corresponding to the first debug column (1).

    [9]
    9. Wastewater purification system according to claim 5, characterized in that the second connection pipes (13) corresponding to the first purification column (1) and the second purification column (2) are linked to the first water supply / collection pipe (15) waste.

    [10]
    10. Wastewater purification system according to claim 9, characterized in that the second connection pipes (13) corresponding to the first purification column (1) and the second purification column (2) respectively comprise a ninth valve of blocking (29) and a tenth blocking valve (30), located in an intermediate position between the connecting points of said second connecting pipes (13) with the first water supply / collection pipe (15) and with the second water supply / collection pipe (16). Four. Five

    [11]
    11. Wastewater purification system according to claim 9, characterized in that the first wastewater collection / collection pipe (15) comprises:
     a second blocking valve (22) and a third blocking valve (23), 50 located respectively upstream and downstream of the connection point between said first wastewater collection / collection pipe (15) and the second pipeline connection (13) corresponding to the first debug column (1);
     a fourth blocking valve (24) and a fifth blocking valve (25), located respectively upstream and downstream of the connection point between said first waste water collection / collection pipe (15) and the second connection pipe (13) corresponding to the second column of 5 debugging (2).

    [12]
    12. Wastewater treatment system according to claim 5, characterized in that the second wastewater collection / collection pipe (16) comprises:
     10
     a sixth blocking valve (26), located between the connecting points between said second wastewater collection / collection pipe (16) and the second connecting pipes (13) corresponding to the first purification column (1) and with the second debug column (2);
     fifteen
     a seventh blocking valve (27) and an eighth blocking valve (28), located respectively upstream and downstream of the link point between said second waste water collection / collection pipe (16) and the second connecting pipe (13) corresponding to the third debug column (3). twenty

    [13]
    13. Wastewater purification system according to claim 1, characterized in that the purification columns (1, 2, 3) are removable, allowing their opening and replacement of the filling material (4, 5, 6, 7) of each debug column (1, 2, 3). 25

    [14]
    14. Wastewater purification process characterized in that it comprises circulating the wastewater through at least a first purification column (1), a second purification column (2) and a third purification column (3), where: 30
    a) the passage of water through a first filler material (4) included in the first purification column (1), causes the removal of particles of organic matter and suspended solids,
     35
    wherein said first filler material (4) is selected from:
     sepiolite;
     zeolite; 40
     clay;
     active carbon;
     Four. Five
     a combination of the above;
    b) the passage of water through a cationic resin comprised in the second purification column (2), causes the elimination of cations from the residual water;
     fifty
    c) the passage of water through an anionic resin comprised in the third purification column (3) causes the removal of anions from the wastewater;
    where additionally:
     the passage of wastewater through a fourth filling material (7) comprised in a sandwich structure at the ends (10, 11) of the purification columns (1, 2, 3), reduces the water velocity and allows 5 the retention in said fourth filler material (7) of suspended solids, wherein said fourth filler material (7) is selected from:
    or sand;
    or gravel 10
    or a combination of the above;
     perforated plates (8) comprising filtering meshes (9) prevent the loss and sliding of filler material (4, 5, 6, 7) of the purification columns (1, 2, 3). fifteen

    [15]
    15. Wastewater purification process according to claim 14, characterized in that it comprises a rinsing step of each purification column (1, 2, 3), for regeneration of the filling materials (4, 5, 6, 7) included in the purification columns (1, 2, 3), where said rinsing stage 20 comprises circulating water through each purification column (1, 2, 3), in the opposite direction to the sense of sewage treatment, and so independent for each purification column (1, 2, 3), so that the water used to rinse a purification column (1, 2, 3) is not reused to rinse the other purification columns (1 , 2. 3). 25
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    同族专利:
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    ES2551055B1|2016-09-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5715885A|1980-06-30|1982-01-27|Nippon Rensui Kk|Method for recovery of high-purity waste water of washing|
    BE895821A|1983-02-04|1983-05-30|Ecolochem Inc|Mobile ion exchange treatment plant for liq. esp. water - offers optional treatments by using vessels in parallel or series or both|
    GB2424008A|2005-03-09|2006-09-13|Marral Chemicals Ltd|Ion-exchange techniques used to treat oil, gas, mining waste and cooling water|
    WO2020110139A1|2018-11-30|2020-06-04|Ajay Kumar Vashisht|"multi-column sand filter and a method thereof"|
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