• 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:
    Leaching mineralization system characterized in that it comprises an initial pond (1) incorporating a filter (1a) located at the entrance of the pond (1); and a purification plant (2), composed of a zone of agitation (2a), an area of aeration (2b), a zone of denitrification (2c) and a zone of settling (2d); all commanded by a logical means of control (23). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2565000A1
    申请号:ES201431405
    申请日:2014-09-26
    公开日:2016-03-30
    发明作者:Jordi HUGUET I FARRÉ
    申请人:Mancar Tecnologias Sl；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Procedure and system of mineralization of leachate.
    Object of the invention
    The present invention has as its object a procedure and system of mineralization of leachates, in particular, of all types of leachates of non-chemical origin, by means of the use of mechanical and electrical means as well as various trace elements.
    The system proposed here is a continuous system, with low energy consumption, thanks to which outlet water is obtained, suitable for both irrigation and discharge to a public channel, without heavy metals and sludge.
    Background of the invention
    At present, it is commonly called leachate, the liquid resulting from a process of percolation of a fluid through a solid. Leachate generally carries a large amount of the compounds present in the solids it crosses.
    The term leachate is used in almost all environmental sciences, being its most general use the one that corresponds to the leachate of controlled deposits, so the term leachate is generally associated with liquids that are managed in the deposits controlled from waste.
    For example, aqueous waste from garbage dumps is "sewage water laden with very toxic organic and inorganic particles" impossible to be discharged into public channels or reused in any other possible way, since environmental legal provisions are incompatible with the environment , making life development of any type of organism impossible and considerably affecting the environment that circumscribes them.
    Therefore, it is necessary to implement systems or methods that adapt these waters, making them optimal for their controlled discharge, both in the riverbed, and for other applications such as the use of water for irrigation.
    Therefore, various solutions or techniques are known that attempt to solve said problem described, such as, for example, the Spanish patent 2 183 723 which describes a system for purification of wastewater from garbage dumps (leachate) by alkalization and ozonation, characterized by having the following stages: i) coagulation-flocculation stage; ii) alkalization and elimination stage of fats with sodium hydroxide; iii) stage of injection of air under pressure and filtration in parallel; iv) filtration stage in sand bed, nylon and active carbon; v) stage of ozonation; vi) filtration stage in sand bed, nylon, diatoms and active carbon; and finally, vii) reverse osmosis stage.
    Description of the invention
    The leachate mineralization system, object of the present invention, is characterized in that it comprises an initial raft that incorporates a filter located at the entrance of the raft itself; and a treatment plant, composed of a zone of agitation, a
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    aeration zone, a denitrification zone and a decantation zone; all this commanded by a logical means of control.
    Thanks to the system proposed here, the defined biological purifier manages to multiply the bacterial population up to four times that of any existing situation, and in the same way, thanks to the external contribution of various trace elements, a heavy metal free water is obtained, it is that is, reducing salts, nitrates and phosphates, above ninety percent, obtaining water suitable for irrigation, as fertilizer or contribution to a public channel.
    Once the activation period has elapsed, and its optimum performance regime has been achieved, a constant flow is obtained independent of weather conditions or seasonality.
    Therefore, the procedure presented here proposes a great reduction of the usual energy costs in the depuration of leachates, favoring, in turn, the disappearance of gases, odors and the traditional economic costs associated with the implementation of sludge facilities, also eliminating the procedures related to compaction, drying, transport and pouring.
    The efficiency of the system is determined by the elimination of usual and economically expensive processes, which results in an economic saving in the installation of said system, making the installation more profitable.
    The leachate treatment system is divided into two phases, a first phase where an initial raft is used, with a 100 micron filter located at the entrance of the installation; and a second phase, where a sewage plant is located, divided into a zone of agitation, a zone of aeration, a zone of de-nitrification and a zone of decantation.
    The mineralization process, makes all heavy metals, clays and a very high percentage of salts, form floccules that are deposited in the lower part of the aeration bucket, over a long period of time (of the order of several years ), a layer of a few centimeters will have been formed, which will be extracted by taking advantage of a stop of the installation for its extraction, depositing them in containers for this type of waste or taking it to a special landfill or authorized manager.
    These floccules will be composed of 15% heavy metals, and 85% clays with parts of salts. When these floccules remain inside the sewage plant, the water that goes outside is totally free of them.
    Thanks to the design of the installation proposed here, it will be possible to solve the problems associated with leachate treatment plants, which are among others, at a high maintenance cost, a high consumption in electricity, creation of gases and odors, sludge formation ( installation of dependencies for drying them), and use of expensive additives for purification.
    Throughout the description and claims the word "comprises" and its variants are not intended to exclude other technical characteristics, additives, components or steps. For those skilled in the art, other objects, advantages and characteristics of the invention will be derived partly from the description and partly from the practice of the invention. The following examples and drawings are provided by way of illustration, and are not intended to restrict the present invention. In addition, the present invention covers all possible
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    combinations of particular and preferred embodiments indicated herein.
    Brief description of the figures
    A series of drawings that help to better understand the invention and that expressly relate to an embodiment of said invention that is presented as a non-limiting example of this is described very briefly below.
    FIG 1. Shows a scheme of the leachate mineralization system, object of the present invention.
    FIG 2. Shows a detailed view of the parts that make up the leachate mineralization system.
    Preferred Embodiment of the Invention
    A preferred embodiment of the invention is shown in the attached figures. More specifically, the leachate mineralization system, object of the present invention is characterized in that it comprises an initial raft (1) that incorporates a filter (1a), preferably one hundred microns, located at the entrance of the raft itself (1); and a treatment plant (2), composed of a zone of agitation (2a), a zone of aeration (2b), a zone of denitrification (2c) and a zone of decantation (2d).
    The agitation zone (2a) will be connected to the raft (1) through a duct (3), and where thanks to the presence of a metering pump (4) together with a first regulating element (5) type, valve or key, which regulates the flow of leachate from the raft (1).
    Said agitation zone (2a) will comprise a base (6) that incorporates an agitation system (7), which will homogenize the leachate, and a nutrient metering pump (8) with trace elements, which helps to purify the leaching and eliminates Smells of it.
    The aeration zone (2b) will be connected by a duct (3) to the agitation zone (2a), which will feed it in a regulated manner thanks to the presence of a second regulating element (9). This aeration zone (2b) comprises a base (10) that will have in its lower part a plurality of diffusers (11) located on a support and fed by at least one air pump (12) that inject oxygen said zone ( 2b).
    In the aeration zone (2b) the bacteria that achieve the liquefaction of the organized matter are reproduced, creating on the one hand some flocculations that will be deposited at the bottom of said zone (2b), and on the other hand, a liquid reflux the agitation zone (2a) by using a second metering pump (13).
    The denitrification zone (2c) is connected to the aeration zone (2b) by means of a duct (3) and regulated by a third regulating element (14).
    Said denitrification zone (2c) comprises a base (15) connected to an agitator (16) which manages to homogenize both the liquid and solid part of the leachate in said zone (2c). This zone (2c) will be under anaerobic conditions, so that the bacteria will feed on the nitrogen due to the absence of oxygen, eliminating the nitrogen from the leachate.
    The decantation zone (2d) will be connected to the denitrification zone, by means of a conduit (3) and regulated by a fourth regulating element (17). This area of
    Decanting (2d) comprises a base (18) whose lower part will be conical, thanks to which, the sludge that will be distributed by two dosing pumps (19, 20) that will create reflux of the mud towards the initial raft (1) and the agitation zone (2a) of the treatment plant (2).
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    The water obtained will already be purified and suitable for irrigation, fertilizer or discharge into a public channel, and will leave the treatment plant (2) thanks to a fifth valve (21) located at the base (18) of the decantation zone (2d ), which is connected to at least one second conduit (22).
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    The entire installation will be commanded by logical control means (23), PLC type or similar.
    The leachate mineralization process comprises:
    15 i) a first stage of leachate deposition in an initial raft (1);
    ii) a second stage of sending the leachate to a treatment plant (2);
    iii) a third stage of leachate passing through an agitation zone (2a), where the leaching is homogenized and nutrients are added with trace elements;
    iv) a fourth stage of leachate passing through an aeration zone (2b), where oxygen is fed to the leachate, will help the reproduction of bacteria, achieving
    that liquefy the organic matter, and form a series of floccules that are stored at the bottom of the aeration zone (2b);
    v) a fifth stage of leachate passing through a denitrification zone (2c), where the liquid and solid part of the leachate is homogenized, and where, under anaerobic conditions,
    2 5 the bacteria feed on the leachate nitrogen, eliminating it.
    vi) a sixth stage of the leachate passing through a decantation zone (2d), where the sludge accumulates in the lower part of said zone (2d), creating a reflux with the raft (1) and the agitation zone;
    vii) a seventh stage of extraction of purified water.
    权利要求:
    Claims (13)
    [1]
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    1. - Leachate mineralization system characterized in that it comprises an initial raft (1) that incorporates a filter (1a) located at the entrance of the raft itself (1); and a treatment plant (2), consisting of an agitation zone (2a), an aeration zone (2b), a denitrification zone (2c) and a decantation zone (2d); all this commanded by a logical means of control (23).
    [2]
    2. - System according to claim 1 wherein the agitation zone (2a) is connected to the raft (1) through a duct (3), and where thanks to the presence of a metering pump (4) together with element Regulator (5) feeds and regulates the flow of leachate from the raft (1).
    [3]
    3. - System according to any of claims 1-2 wherein the agitation zone (2a) comprises a base (6) that incorporates an agitation system (7), which will homogenize the leaching, and a metering pump ( 8) of nutrients with trace elements, which helps to purify leachate and eliminates odors from it.
    [4]
    4. - System according to claim 1 wherein the aeration zone (2b) is connected by a duct (3) to the agitation zone (2a), which feeds it in a regulated manner thanks to the presence of a second element regulator (9).
    [5]
    5. - System according to any one of claims 1 and 4 wherein the aeration zone (2b) comprises a base (10) which has a plurality of diffusers (11) located on a support and fed by at least one air pump (12) that inject oxygen said zone (2b).
    [6]
    6. - System according to any of claims 1, 4 and 5 wherein the aeration zone (2b) incorporates a second metering pump (13) that will send a reflux towards the agitation zone (2a).
    [7]
    7. - System according to claim 1 wherein the denitrification zone (2c) is connected to the aeration zone (2b) by a duct (3) and regulated by a third regulatory element (14).
    [8]
    8. - System according to any of claims 1 and 7 wherein the denitrification zone (2c) comprises a base (15) connected to an agitator (16) which manages to homogenize both the liquid and solid part of the leachate in said zone (2c).
    [9]
    9. - System according to any of claims 1, 7 and 8 wherein the denitrification zone (2c) is in anaerobic conditions.
    [10]
    10. - System according to claim 1 wherein the decantation zone (2d) is connected to the denitrification zone (2c), by means of a conduit (3) and regulated by a fourth regulating element (17).
    [11]
    11. - System according to any of claims 1 and 10 wherein the decantation zone (2d) comprises a base (18) whose bottom part will be conical, where the obtained sludge is decanted.
    [12]
    12. System according to any of claims 1, 10 and 11 wherein the settling zone (2d) incorporates two dosing pumps (19, 20) that create reflux of the sludge towards the initial raft (1) and the area of agitation (2a) of the treatment plant (2).
    5 13. System according to any of the preceding claims wherein
    The purified water leaves the treatment plant (2) thanks to a fifth valve (21) located at the base (18) of the settling zone (2d), which is connected with at least a second conduit (22).
    10. 14. System according to claim 1 wherein the filter (1a) is one hundred
    microns
    [15]
    15.- Procedure of mineralization of leachate which comprises i) a first stage of deposition of the leachate in an initial raft (1); ii) a second stage of sending the leachate to a treatment plant (2); iii) a third stage of leachate passing through an area of
    agitation (2a), where the leaching is homogenized and nutrients are added with trace elements; iv) a fourth stage of leaching through an aeration zone (2b), where oxygen is fed to the leachate, will help the reproduction of bacteria, getting them to liquefy the organic matter, and form a series of flocculations that are 2 0 stored at the bottom of the aeration zone (2b); v) a fifth step of the
    leached by a denitrification zone (2c), where the liquid and solid part of the leachate is homogenized, and where, under anaerobic conditions, the bacteria feed on the leachate nitrogen, eliminating it; vi) a sixth stage of leaching through a decantation zone (2d), where sludge accumulates in the lower part of said zone (2d), 2 5 creating a reflux with the raft (1) and the agitation zone ; vii) a seventh stage of extraction of purified water.
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    同族专利:
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    引用文献:
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    CN203820605U|2014-04-30|2014-09-10|潘志成|Landfill leachate treatment system achieving national first-level A emission standard|CN111675422A|2020-05-19|2020-09-18|舟山旺能环保能源有限公司|Environment-friendly sewage purification tank|
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