IT201600122632A1 - Method for the control of deposition and / or delayed destabilization of colloids and their distribution in filter media - Google Patents

Description

<'> THE METHOD FOR THE CONTROL OF THE DELAYED DEPOSITION AND / OR DESTABILIZATION OF COLLOIDS AND THEIR DISTRIBUTION IN FILTERING IVE ZZI.

This invention relates to a method for controlling the deposition and / or destabilization of the collars of the filter media and the stripping gold spaces to the e.

With the theme in "col l oi de" we mean a suspension of a sol i from or here from or gaseous phase, of months oni micrometers or nanometers which, of lost i in a phase i here to go on. The most common examples of col l or of are represented by sols (eg aqueous examples or suspensions of some cr siri organs, nanopar t i cel I e, nicroparti cel I e), errul ys and arcs. The phases of dispersion of the hills can be related by different ratios to the i, according to their specific application; eg metal iron (ZVI), iron oxide, zeroval ent metal corrbi nati ons, metal and activated carbon, water-oil errul ons, skins.

The method can be applied to filtering media of any kind, including, for example, porous media, granular media, fractured media, porous or filter media, packings and systems. rrpaccati, excavate pores and / or channels and / or chambers interconnected between gold, sponges, nets and sys- tems with ari, elements with a ni do d <"> structure, bees, filters, fabrics, foams and ratios to foams, bi ol ogy fi lters, earthworks that allow filtration and / or infi ltration and / or permeation and / or transport of fl ui to one's own or internal.

[. <"> Objective of the method <■> that of generating a controlled deposition of the spending phase of a collec on the interior of a filter medium for the purpose of modifi flesh their own age <"> mechanics that, who rri that (for example or the ability t <"> to react with other other substances), the drodes that (for example, its porous t <"> and / or for meabi I i t <">), geochemicals and / or surfaces at the i (for example or its load ). The possibilities of application of the method are therefore manifold, and they include, among others, the conditioning of filter media, coating of the surface and of the grains or of the fractures of a medium. fi lter with cellular parts and col l or s from i, l a creation of reactive fi ltrants, a di stric tio n of soil improvers in the filter medium, l a creation of reactive zones si ngol e o rrulti pl e al l <' > internal of the filter medium, the removal and / or immobi l i ization and / or degradation and / or transformation of substances and / or counting them to the I <"> i nt er no of the medium f i I t r doors.

In a preferred application of the method, the filter medium <■> represented by the soil and / or subsoil, and in particular the vadose zone, or the fringes at cap l ares or earthworks (fal de artesi ane and / or freati that). The application center <■> therefore first of all the reclamation of the soils, subsoils and aquifers count them born and / or the dosages or soil improvers and / or the modification of the soil et <"> fi si that, chi rii che, fi si si rii che o the drogeol ogi that of the ground or of the fallow water in order to prorrupt the degradation and / or the removal and / or the > mmobi l i zzat on of the counters present in the subsoil. In another preferred application of the method, the filter medium can also be a portion of the ground and / or subsoil or specially extracted and prepared for the on-site reclamation treatment, for example or from the spouses of the filter medium count them born in special iti r eat t or i.

The uncovering of the subterranean resources, of the aquifers in particular col ares, represents a probi error of pri rrari a i rr importance to the day of today. A large number of contaminating substances, both of anthropic and natural origin, are continually remitted in all related parts of the year, often finding in the soils and in the underground waters a preference for a rrigration. and / or accurrul o. The presence of these substances in significant concentrations and for prolonged periods, can comfort risks for human health, for direct exposure to exposure by contact, inactivity or in gestures, or for There is a straight line because of the gold i ntroduction in the l e mentary chains, as well as for the arrbi ente and for the ecso aquatic and terrestrial earthworks.

The production and the dry matter of substances counting in the l <'> i nterno of the first millimeter years, the parts of the subsoil and the groundwater, are often the rrpr elements. quit bi I i and the snow in the l a almost total it <"> of the l e t <-> anthropogenic acts. At ti vi t <—> nri nerari e, as for example (<"> extraction and transport of conrbust i bi I i ditches l i o rra t eri to the quarry, acts vi t -i ndustri al i for the t rasf or rraz i on of naten e pri me, for the refining of petroleum products and the synthesis of chemical products, the production line and t rasf or rraction of the energy, the industrial and the the mentary, t <-> agri col e e e of l evamento tions represent only a few of the countless examples of t <-> human acts that to el evato potenti al and of the impact on which t < -> of the various departments for years. Particular attention must then be paid to the activities of the storage, transport and disposal of production waste, waste and waste water, often to and the high content of dangerous substances, which represent one of the most deli ed phases within the various product cycles.

L <'> arises at various ages <"> of the l e acts vi t <-> anthropi that with times translates into a large ssi rra various abi l i t <"> of the l a ti pol ogi a and of the l a quantum t <"> of the The volatile substances that are dry in arbi ente, which can cause corruption of an organic nature (for example, pest or pests of, ant i cr i 11 ogarri ci, pesticides, conci ni, ol the l drunk , conrbust i bi I i, solvents also chlorinated, aromated corrected ci nocles and then ci cl i ci, oxy ne, then chl orob f eni I i, etc. heavy metal, corrupt oni, etc.). In addition to the I <"> i nt r oduz i on i n arrbi ente of nsecularly dangerous substances, also the dry substances or per sii in harmless substances, for example nitrates or phosphates, puD contri bui at the worst of the l a which t <-> of the subsoil, as they are capable of triggering certain chemical, physical, or mediated processes by iri cr siri organs, which deterrri n I <"> increase in l it <”> of toxic or carcinogenic substances naturally present in the ground, such as eg arsenic, chromium or other heavy metals.

Methods are known for the correct reclamation of the subsoil, and of the particular aquifers, which provide for the removal of the cont arri nant source, (<"> extraction by excavating the porous medium However, this approach or results very often locally (for exerrpi or falcons born below a production site that is still active), technically (for exerrpi o el evate deep t <"> of the intervention) and / or ecorrrms (for exerrpi o el evati you urri to be treated) i nrpr at i cabi I and o unsatisfactory. In these cases, <■> the preferred facts it is necessary to resort to reclamation techniques, which provide for the <"> i nt r oduz i on and the consequent stripping in the subsoil or of substances capable of degrading or reducing the toxicity <"> of the counting agents (for example or corrected oxidizing or reducing, etc.) and / or to accelerate their removal (for example or sti mol anti of I <"> at t i vi t <”> enrichment, electron acceptors or donors, etc.). In par ticular, the dividing line (including medium-sized ones) in the subsoil of the hills of <■> is a very promising strategy for the reclamation of underground waters.

Mero and nanoparticles of zerovalent iron are, for example, used for the degradation of recalcitrant contaminants, such as chlorinated hydrocarbons, for example. These cellular parts present an el ev ev ed and specifi c surface per unit <"> of you urns, speci ally if compared to that of the month of measurement commonly used in the real i zzat on of the l e more conventionally permeable reactive barriers, which confers the gold a great ssi mi reactivity <”> even against f i ci I ment and degradable i i compounds such as TCE, PCE, etc. In addition, the use of zeroval ente iron in the n reactive permeable barri ers allows the treatment of the solubio a part of the counting that is in the dissolution phase, thus making the solubi I i t < -> of counting in one of the main factors l i n many of the effective l <'> of this type of intervention. The use of mere and nanoparticles and of zerovalent iron allows instead to overcome this irritating aspect, thanks to the possibility of o from and directly to the inside of the source, counting them, thus coming out to attack directly the inlet in the segregated phase. Furthermore, the parts of the zero-valent iron are sometimes prepared in the form of errula ons, in order to favor the contact of the reactive miter with the organic substrate to be degraded. In addition to their great reactivity <">, some suspensions with the or from the i are distinguished by the and el evate capable of adsorption to numerous corrupted organs and peri-odor organs, including which are heavy metals (eg orrbo, arsenic, chromium, copper). In this case, the <'> objective <■> that of injecting the suspension with the or from and the remedies at ament and at the value of the area affected by the cont arri nation in order to create a Reactive beams, it rri l e a barri was reactive permeate I e, that the water is crossed by counting them with consequent mnrobi I i zzaz i on of the i nquanting substances contained therein. A more common type of col l or s used for the adsorber bi rrent of dangerous substances <■> represented by suspensions of mere and nanoparticles and of activated carbon, finally zzati on first to the I <"> the nrrrobi I i zzazi on of corrected organs, and iron bones (eg eserrpi or Goetite), particularly effective against heavy metals. of iron, specifically Iron, are also able to act as acceptors of electrons by giving rise to bacterial activity and favoring the accelerated degradation of numerous organic count (e.g. In the subsoil, the enrichment of iron <■> is often associated with the oxidation of cont arri nant substances, since many bacteria f er r o-r i ducent they are capable of metabolizing a range of organic substrates, including numerous recal citrant cont arri nants. great stability <-> of the iron bones with the o from the and confers gold an el evati ssi mi reactivity <-> and bi odd s poni bi I i t considerably increasing the I <"> effective at potenti al and of this technology.

The necks used for the reclamation of groundwater counted are typically injected into the subsoil or dispersed in the form of suspensions in phase I i here from. Such suspensions must be established, or metastable, in order to allow for transport in the subsoil or in the medium before the specific tech nology adopted. In most cases, the leakage lock with the water or the water (or the water) does not guarantee the choice of stability. For example, the cr opart i cels and zeroval ente of dispersed in water settle rapidly due to the dense gold t-. Or, nanopar t i cells and zeroval ente iron quickly aggregate, and consequently settle, due to the attractiveness of migneti that part i the apart i cel I a. This leads to the irritation of the arobi l it <-> of the col l oi of during the reduction of in fl uence of the points of i n e tio n, the need <-> to nect large quantities of col l oi in in order to grease the desired concentrations in the target zone, the possi bi l e i ntasamento of the porous medium i n proximity <”> of the points of i ni eti on due to the I <“> accurrul or of how many t <”> excessive col l oi di. In order to establish the <"> of the water and the dispersion of the water, various techniques are used which, for example or the <"> use of bi opol i mers with properties <"'> shear thi nni ng_ due to the dispersion of mere and nanoparticles of the I and of zero-valent iron, or I <"> use of compounds or other mol ecol and which adsorb on the surface and of the first nano-part i cel I e o ni cr opart i cel I e (<'> coati ng_) increasing the repulsive forces and thus avoiding I <“> aggregation. The reactants can also be stripped in the form of errules, foams or other forms with I or I from I.

In the known reclamation methods, the suspensions with the or the from the can be introduced in the subsoil, and the n par ticular are in the ground which, by means of techniques of different dosages depending on the specifi c application case:

i n ezi on of suspensions with i or i from i to l <'> i nterio n of more zometers or traditional wells equipped with <'> packer_ si ngol i or double, possibly with the possibility of i ni ezi oni rrul t i I i vel I o. In this case, usually I <"> i n ezi on <■> carried out with medium or low flow rates and we speak of i n ezi on by permeation, in as much as the rii ng of the col l oe takes place by exploiting the porous nature of the medium, without creating fractures in the l <'> i nt around of the point of i mnri ss i on. The distribution of the most possible parts is homogeneous, except for the presence of a preference to natural rrigrati on;

the use of direct systri ons which allow to nect the reactant products directly to the inside of the rods during the drilling phase, the so-called techniques that <'> by rect push_. In this case the suspension <■> is netted at very high pressure, with consequent probable fracturing of the porous medium and a more heterogeneous stripping of the reactive material which tends to shrink the surface. of preferential rezi ons to the di ries thanks to the nduced during the ezi on or naturally present. Generally speaking, it is the case of fracturing;

dosages or on the skin of the falda by means of i nfi ltrant trunks. This tecnique of i n ezi on <■> can be used only in the case of cont arri nation on the most surface areas and in particularly permeable soils, which allow I <"> i nf i I t rati on of the rrateri al e reactive for sol a severe t <">. It is more convenient in the case of cont arri nation of stri buite on a more bent surface.

The techniques of dosages or described can be applied according to different methods in order to introduce the suspensions with the or from the subsurface. In the l e nodal i t <"> of dosages or notes the cols are produced in the subsoil or in an I i rited portion of land, they can here grow thanks to the natural and or artificial fl ow of the I <" > do from water and must reach greasing the I counting nant (i n a <'> target area,) pr orroving its re nozi on. For example, in the case of the reclamation of groundwater, the target area <■> the source area of the cont arri nation, or an area limited to the valley of it, at the end of treat the fraction of cont arri nant and dissolve in fal da water (<'> feathers,). It is therefore desirable to have a suspension with the ores from and established during the phases of inception, which allows for a good rrobi l it <"> in the subsoil, until the collisions of the same have reached the target area. Π cont enrpor aneament e desi derable that the col l or s de pos i t i no / i mmobi I i ices once they reach the target area, and no longer a nrobi I i / nrobi I i i i n subsequent stages. This <■> par t i col arrrent e desi derable for eserrpi o in the case in which the col l or s are injected in the subsoil or in order to adsorb the contanants, eserrpi or heavy metals , which are fi xed on the surface of the hills and, in the case of a subsequent reconstruction of the same, they would be conveyed in a controlled way in the subsoil and more in general and in the first half of the year, constituting themselves a secondary source of cont arri nation. However, the <"> of dosages or notes are not opti rized to guarantee a control of the stripping and the transport of the suspensions with the ores produced in the subsoil, whose destiny no fi nal <■> deterred by the first sol and operating conditions of the l <'> i n ezi on, by the characteristics that the droducts narrate and geochi rri that of the aquifer and by the l < Possible presence of destabilizing agents of natural origin (eg Ca2 +, IVg2 +, and other di cate salts nml ti va e nt i). The lack of a rrodal it <"> of dosages that allows the control of the deposition of cellular parts or of destabilization of suspensions with the or from the genus causes the probable of a use and an ineffi cient distribution in the subsoil. CX / and the natural destabilizing conrunement and present in the groundwater are found in concentrations the nsuffi ci ents for the mnrobi I i zzaz i on the stantaneous col l or di, these can spread in a vast area , reducing the effective concentration to the inside of the target area, reducing the effectiveness of the reclamation. Furthermore, considering this loss of fractions, the and, in order to obtain the concentration of the col l or the necessary to achieve the reclamation, the urie of suspension from inject must usually be dosed in strong excess. Finally, if the naturally present destabilizing agents were the ones to stop the regression of the product line or s, this could cause their probi erra to be lost. carrying with it the eventual and counting them in adsorbed. In order to ensure the effi ciency of the decontamination, <■> of fundamental importance is to obtain a final and final stripping of the coll or of the reagents, vei with the andol i i n a portion of the rrit on of the subsoil and at the desired distance from the point of ine nition (target area).

At the current state of the art, some technical expedients, technol ogy solutions and modal i t <"> of i nes on are known which allow a more effi cient and rational use of the product i ned or a, albeit partially to e, control on the fi nal destiny of the suspension with the ores from e inleted. However, none of these methods or technol ogy provides for the controlled and deferred i n ezi on in the territory and / or in the space or of a group or of a destabilizing agent in a medium filtering in order to generate a deposition and / or mmobi l i zzatio n controlled by the sol phase from constituting the col l or the de.

For example, US5836390 proposes a method for the forrati on of underground barriers for the confining of r arrays to the subsoil (eg cont arri nant). The method represents a system of securing the cont arri nation, and not a reclamation. The suspension with the ores from and does not react with the inactive substance, between the I rrita without the cement and the rii thanks, generating a boundary. A suspension with the ores from the e (eg Si I i ca) is injected into the subsoil, where it is only difi cated through mechanisms of gel i f i caz i on, cooling, etc. The period in which the sol i difi cation takes place after the <"> i ni ezi on can be checked by cal i bring the l ui ti on of its suspension with the or s from the e, taken from pre-selection with sal i n and / or sett ng sol uzi on. Unlike the method object of this invention, the eventual and corrected used to introduce the gel i f i cat i on of the US5836390 neck is pre-selected to the neck of the same pr i rra del l a its i n ezi on. There is no provision for a deferred i nition in the terrpo and / or in the space or of the col l or of the l <'> eventual and second payment. Multiple points are not used for different substances. Since the col l or the de and the second billed are pre-selected, the control of the point and / or the land in which the supply of the barri takes place was a borderline <■> deterred by the sol a i t i n i n c e of the suspended suspension, resulting difi ci l e, i rrprecise and strongly i nfl uenced by the l ay corrposi t i on of the fallow water and the heterogeneous t <”> L ocal i of the sub t os uol o.

US5857810 discloses a method which provides for the formation of a clear barrier drawn in the subsoil or of parts of the soil. The cell parts are suspended in a non-Newtonian fluid (<'> shear- 1 hi nni ng_) and injected at a high flow rate. The ezi on starts from the well. A second well can be used in the extraction to guide the transport of the parts underground. This method of dosages or of the neck does not foresee the ezi on of more fl ues of n different points and / or terrains. The deposition of the cellular parts <■> entrusted to the sol or corrpor t ament o rol ogi c of the injected fluid (the cellular parts are deposited when the flow velocity t <"> is low). With this technique there is little control over the destiny of the hill, as it is very difficult to control the flow of the fluid and here the point in which the deposition takes place. of the I e parts cel I e.

AU2010306775 and US6664298 describe the use of innovative rra ters for the degradation of the born counts, corrected on one side by the drofi l a and the other by the drophobic. The proposed ratios are respectively: a rater al and corposite made up of activated carbon, zerovalent iron, palladium and a polymeric stabilizer (for example or CIVC); e- ZVI (errul sifi ed zero-vai ent i ron), a <“> errul s i one stabilized and corrupted by water, ol i o, active tensions and nanopar t i cel I and zerovalent iron. The corruption of these rra t eri al i allows an <'> aggression rii rata (<'> t ar get i ng_) of the counted organic births. These technologies allow for a good targeting of the contant source, allowing a reduction of the reactive fraction used. However, it does not guarantee the mnrobi I i zzaz i on of the reactive rrateri on itself, which can empower the mind to carry on its own action thanks to the falter after reacting with the counting. The documents do not <■> describe the i <“> i n ezi on of a destabilizing agent i ned contextually or n different points and / or moments such as that of the I <“> invention. In the absence of such a destabilizing agent injected contextually or the n different points and / or moments, the control of the no fi nal destiny and of the reactive rrateri <■> entrusted to the l e sol and own age <"> surfaces al i of the rrateri al e itself and the I <“> affi ni t <-> between this rrateri al e and the cont arri nant e.

US6352387 describes an apparatus for the effi cient ration of the reagents in the subsoil or for the reclamation of aquifers to count them born, [. <“> Apparatus allows a uniform separation of the reagent , rrigl i orando l ateral e verti cal remi ng of the reagent in the soil or counting them, [. <"> the invention does not relate to the specifi c I <"> i n ezi on of col l o of nH I <"> the deferred ezi on, in the terrpo and / or in the space, of a suspension with the or from the e and of a destabilizing agent and does not provide the information regarding the possibilities l e control of the fi nal destiny and of the reactive rrateri al e once i ned i n fal da. However, the apparatus described favors a choice of separation obtained from the subsoil in the subsoil and the reagent, and herewith the potential to reduce the quantity of fractions to be used, with a method different from that one of the present invention.

With reference to the specifi c application in the soil and subsoil reclamation carrp to count them, the purpose of the present invention here is to solve the aforementioned problems of the anterior technique, providing a method for the control of the deposition and / or the delayed destabilization of the col or the gold of stripping of the filtering media which allows to have a suspension with the col l or s from the and stabilize or metastabi l and during the i ning phases, which allows a good robi l it <"> in the filtering medium, until the necks of the same have reached the target area, which cont errpor aneament e permits the dispersed phases constituting the col l or the deposited layers once they have reached the target zone, and no longer arobs the subsequent phases .

Another purpose of the present invention is to reduce the effi ciency of the reclamation, obtaining a final distribution and obtaining and control of the collectors of o of the reagents, conveyed by the andol i in a portion of the rrit on of the subsoil and at the desired distance from the point of ine nition (target zone).

More generally, the aim of the method <■> is to generate a controlled deposition of the spending phase of a col l or the inside of a filter medium, in the context of all the appl i cations already <"> cited in the head of this document, obtaining the operating modal i t <">, and how many t <"> of col l or the destabilizing agent and / or agent used , checking the depositing concentration and / i nrmobi I i zzat e and the point and / or the land in which the deposition takes place, as well as rrriting the possi bility to move the phase filed.

The aforesaid and other objects and advantages of the invention, which will emerge from the following description, are achieved with a method for the control of the deposition and / or destabilization. retarded col l or gold of stripping in filter media such as that described in claim 1. Preferred forms of real i zzat on and various non-trivial antis of the present invention form the > object of the l e resell cati ons of pending.

It is understood that the related resales form an integral part of the present description.

The present invention will be better described by a preferred form of real i zzat on concerning the i nio n of suspensions with the or from the for the reclamation of subsurface counts born and / or the modification of the own age <"> of the subsoil, provided as an exemplary and non-critical title, with reference to the associated signs, in which:

I and Fi g. la and 1b represent mocked tables that describe modal it <"> of i n ezi on of a suspension with the or s from e and of solutions / suspensions destabilizing of the method for the control of the deposition and / or delayed destabilization of the filter media according to the present invention;

l to Fi g. 2 represents a joke table describing recommended methods for the initiation of a suspension with the or from and of a destabilizing agent and, where deemed preferred and / or necessary, of a third usable flow in the method for the control of the deposition and / or delayed destabilization of the stripping gold in the filter media according to I <"> innovation ;

l to Fi g. 3 represents a concentration curve of cellular parts and of a suspension with the ores resumed in a first test performed to verify the method for the control of the deposition and / or delayed destabilization of with the streak gold or the n fi ltring media according to I <“> the invention, and in the I to Fi g. 4 <■> represented the profi l o of concentration in col onn of parts cell l and on the topic of test A) of ine on; - I to Fi g. 4 represents a profile of concentration in col onn of cellular parts in a first test carried out to verify the method for checking the deposition and / or delayed destabilization of coll or stripper gold i n fi ltering media according to i <“> i nvenzi on;

l to Fi g. 5 represents a concentration profile in col onn of cellular parts in a second test performed to verify the method for checking the deposition and / or delayed destabilization of col l or gold filter media according to I <“> innovation;

I to Fi g. 6 shows a view in the top of a used gift and of a final distribution and of a collet or of a destabilizing agent resulting from a an example of a model for realizing the method for the control of the deposition and / or the delayed destabilization of the stripping gold of the filtering media according to I <"> innovation;

I to Fi g. 7 shows a sectio n sect on of the used gift and of a final striker on and of a collet or of a destabilizing agent resulting from a rotation of a examples of a form of realizing the method for checking the deposition and / or destabilization

retarded of col l or of and gold

filter media according to I <“> innovation; And

l to Fi g. 8 represents concentration curves resulting from a development of an example or embodiment of the method presented in Fig. 6 and Fi g. 7 and corresponding to the first concentration stric tions presented tightly in Fi g. 6 and Fi g. 7 for the control of the deposition and / or the delayed destabilization of the col l or the gold of stri buz i on the media fi lt r ant i according to I <“> i nvenzi on.

Referring to Figures 1, preferred embodiments of the method for controlling the deposition and / or delayed destabilization of the stripping gold are l ustrated and described. filter media of the present invention. On the ter <"> the remedies at ament and obvious or that can be made to the described are the various anti and fi nical nodes (for example or relating to different techniques of i n ezi on the ripi eged for I <" > the number of substances in the subsoil or at different col l or sol uzi ons / suspensions destabilizing or at different order of carrying out the operations presented or at different operational rrodal it <"> appl i cati on) without departing from the protection body of the current invention appears from the l e reseller l e lated.

In par ticular, this invention relates to methods for checking the injected necks <-> filter media in order to ensure an optimal and effective distribution and control. l ata in the target area, by solving the probi erries previously described and connected to the excessive or M iritata established l ii <-> and / or rrobi l it <-> with the or from and from the suspensions themselves, [ . <"> Objective <■> obtained by averaging I <"> i n ezi on by controlling one or more col ors of or suspended with them from the stable or metastable l i associated with the l <' > the ezi on of one or more destabilizing solutions or suspensions, possibly associated with the l <'> i ni on of a third fl u do not containing a destabilizing agent in concentrating i to generate a vari ation of the stabilization <-> of the col l or of, or even consisting of sol and water, where deemed preferred and / or necessary or, suspensions with I or I from I, of I to / and sol destabilizing uses / suspensions and / or of the third fl ui which may or may not be concurrent in the teeth and in the land and / or in the space.

An aspect of the invention relates to the controlled rejection of the subsurface or of the suspension of the col or with one or more solutions or a suspension containing one or more destabilized agents. l i zzanti.

Another aspect concerns the proper age of the first or more soluzi ons / suspensions and the mechanism that the contact between these two or more deterres a destabilization of the suspension. col l or from e, with consequent deposition of l a phase of dispersion of the col l or of in the filter medium or l i beration of its components.

Another aspect relates to the methodol ogy and of ine tions to control the modal i t <"> of the remixing and herein of the result of the deposi on and the related final stri buzi on. l he dispersed phase constituting the col l or the di in the filter medium. If suitably used according to the spouses of the present description, all of the pol ogi and of the aforementioned can be the ripi eged for the suspension with the ores from and from the stabilizing agent in the subsoil. In any case, the technique does not represent an irritating factor in the application of the proposed method, therefore also other techniques, both conventionally and otherwise, for I <"> i mnri ss i on of substances i n phase l i from here in the subsoil, or more in general and n fi ltering media, can be applied without modifying the t <”> t <”> of the method.

The method according to the present invention for the control of the deposition and / or the delayed destabilization of the col l or the gold stripping of the filter media correndent and advantageously the phases of:

i ntroduce at least one col l oi de i n at least half fi lt r ant e

i ntroduce at least one destabilizing agent in the fi lt r ant e medium;

such the steps of disassembly of the collector of the and of the destabilizing agent in the filtering medium being carried out separately in the space and / or in the space or to realize in the filtering medium a n choice of the collision with the destabilizing agent and a destabilization of the collision with the consequent deposition of the lost phase. and i I col I oi de.

The following are the detailed embodiments of the method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filter media according to I <"> the invention, which varies on the basis of the types of suspensions and soluti ons and solu tions, are mechanisms of destabilization and deposition and strategies and choices, methods and methods. the operating conditions of ini et on, duration, scope and terrpi of in on ezi on, number of points of ini et on, number of repetitions of the method and purposes of the method for the control of the l a deposition and / or delayed destabilization of col l or gold of stripping in filter media according to I <“> innovation.

As far as the types of suspensions and solu tions injected are concerned, the suspension with the or the from and or with the de i ntroducing in the filter medium can be constituted by a sol e phase from or there from here from or gaseous. of lost i in a phase l i here to continue; it can be made up of suspensions of any of the Syrian organs; it can be made up of suspensions of nanopar t i cel I and o ni cr opart i cel I e, also reactive.

For example, ni cr 0 / nanopart i cel I and oxo of iron, rii er / nanopart i cel I and iron zeroval ente, rii er / nanopart i cel I and activated carbon, rii er / nanopart i cel I e di rra t eri al i corrpositi, ermi si oni (for example 0 e-ZVI, ermi si fi and zero-vai ent i ron, ermi si oni stabili l i corrected by water, ol i o, tensi oactive and nanopart i cel I and iron zeroval ent), if hi urie (used for example 0 for the desor bi rrent 0 of organ cont arri nants 0 for sti mol arne l a bi odegradation). The l i sta of th e possible suspension with i or from i <■> is to be considered non-exhaustive and <■> brought here only to title or exerrpi i cat i ve.

The 0 l e sol uzi ons / suspensions destabil izing must possess their own age <"> such as to generate a destabilization and / or rupture and / or acceleration of the process of natural destabilization and of the suspensions from and / or generate an aggregation and / or coagulation and / or fl occul ation and / or deposition and / or immobilization of the lost phase constituting the col l or de. The 0 l and destabilizing sol uzi ons / suspensions may contain sol utes (eg 0, solutions containing soda or, Calci or 0 IVbgnesi o); enzi rri; ski gas; tense or active; oxidizing or reducing agents; other chemical or biologic contests; fl ui di ad el evata t errper at ur a; they can contain with the or of. The list of possible destabilizing agents <■> is to be considered as non-exhaustive and <■> here given only to titol or exemplary.

T he n ezi one can take place in porous media of all types; the n porous media; the n half granules; the n fractured media; in porous or fi ltering earthworks; i n i rrpaccament i and earth the nrpaccati; in the excavation of pores and / or channels and / or chambers interconnected between the gold; i n sponges; i n nets and earth networks with ari; i n el elements with a ni do d <“> bee structure; the n fi lters; i n fabrics; i n foams and foams were al i expanded; i n bi ol ogi c fi lters; I n earthworks that allow the filtration and / or the infi ltration and / or permeation and / or transport of fl ui to own or internal.

With regard to the siric mechanisms of destabilization and deposition, the remixing of the reactive suspension and of the or of the destabilizing soluti ons / suspension pri rra: for examples or a different i nterati on between the elements constituting the lost phase of the col l or the in the first phase l i here to continue, which causes their aggregation; or a different i nteration between the elements constituting the dispersion phase of the col l or of the surface and of the filtering medium, which causes its deposi t on / restorations. Furthermore, it is possible that the errul on or the foams will wrinkle and dry their constituents. The different i nteratio n may be due to a loading of the own age <”> surface at the i and of the i ng e forces, deriving, for example, by the load of i oni ca force; reazi one chi rri c a o bi ochi ni ca; conlusion formation; degradation or carib ation of own age of a substance covering the surface and of the coll or of or of the filter medium; degradation or carib ation of own age <”> of a substance which is part of the suspension and which controls the stability of the <-> and the deposition of the collets; loading of surface tension on the surface and adsorption of substance on the surface and of the col l or s of and / or of the filter medium. The destabilized col l or s collapses or aggregates and its dispersed phase is deposited in the filtering medium through eg settling; mechanical filtration; deposi on chi rri co-f i ca.

As far as the strategy of re-selection is concerned, the remixing between the col l or s of and the o l e solutio ns / suspensions of destabilizing may occur through different mechanisms: difference in speed <"> in the middle fi lter (for example or delayed transport of the collector or de and / or of the destabilizing agent); <'> fi ngeri ng_visoso; chaotic convection; difference of densities t <">; of dispersion of the narratives; temperature and / or viscous t <"> and / or dense t <"> and / or phase contrasts; electrophoresis; electrosmosis; generation of electric carrpi, rragneti ci or el ett rorragnet i ci; slow drying of the destabilizing agent; application of ultrasounds; exploitation of the heterogeneous t <”> natural i o nduct of the bi I i t <”> draul i ca of the filter medium or its saturation.

In a preferred embodiment of the method, or if it is deemed necessary or in order to avoid rectal contact of the first or second suspensions with the ores from the with the or or the destabilizing agents, and here of favors the rrigration and / or control of the remixing point, <■> it is possible to interpose a third fl u do, not containing a destabilizing agent in concentrations such as to generate a variety of action of the stabilization <-> of the col l oi de, or also consisting of sol a water, between the phase of inrisi on of the col l oi de and that of the intermixing of the l <'> agent dest abi I i zzant e.

With regard to the methodol ogy of the ine on, the remixing in the fi lter medium <■> has taken appropriate strategies and in the ezi on.

[. <“> I n ezi on can take place in n s ngol i wells; rrul ti I i vel I o wells; trarrite <'> of rect push_; trarrite tri ncee; it can happen at the bottom of the carrpagna; it can occur averaging the application of a positive pressure, by aspiration or by the effect of their severe sol a t <”>; due to fracturing of the medium or permeation; i n any other rrodal it <”> suitable for carrying the rra t eri to the underground, or more in general and filtering media than any type.

In the l and Fi g. 1a, 1b are scherrat i zzat and different rrodal it <"> di i ni ezi on of l a or l e suspension with l or l from 42 and l to or l and destabilizing solutions / suspensions 43 of the method for l control of the deposition and / or delayed destabilization of col l or gold stripping of filter media according to I <“> innovation. The or the suspensions with the or from the or the destabilizing solutions / suspensions can be injected separately in the terrp or from and and of the first or second solution / suspension of destabilizing and, where deemed necessary or, of the third inert fluid interposed, and different types of i n ezi on) and / or in the l o spaces o (Fig. 1a, with at least two points of i n ezi on 2, 3 or techniques or technol og e of in n ezi on, cont errpor aneament e o n different terrpi), [. <"> I n ezi on it can be sequences to and; it can provide for alternating and / or reversing of the fl ow rezi on l a. The destabilized agent may be stripped, before, after or cont errpor a nea nt and to the sol uzi on with l or s from and / or to l <'> eventual and third flow i nert. The third fl ui do can be injected before, after or cont errpor a nea rrent and to the sol uzi on with the or from and / or to the destabilizing agent.

In the I to Fi g. 2 some of the methods recommended for the suspension of the suspension with the or from and 42 and of the destabilizing agent 43 and of the eventual and third flow, usable in the method for the control of the deposition and / or delayed destabilization of the col l or the gold of streaks in the filter media according to the innovation. These methods recommended for the suspension of the suspension with the or from the and the destabilizing agent deferred in the period.

IV Methods with deferred ezi on in the first space:

A) The re chi ed method I <"> use of two or more points of i n ezi on 2, 3 taken one asi of the l e tecnique of i n ezi on el encate i n previously or whichever one in between technical and non-conventions. The suspensions with l or i from i 42 and the destabil i izing agent 43 are the cont errpor anement and (or possibly also the n different territories) n different points in the l o space. L <"> i rmobi I i zzat on / break / destabil I i zzat on of the suspension with the ores from and takes place at the point where the contact between the necks and the <'> occurs destabilizing agent.Control the modal i t <_> of i nrrri ss i on, the distance between the points of i ning eti on, the duration of the l e phases of i ning ezi on, the concentrati on of the col l oi of and of the destabilizing agents, the range of inlet and here of the radius or of infl uence of the two starting points it is possible to control the selection point of the first and two suspensions and herein the point of rrmobi I i zzat on of the suspended phase constituting the col l or of the. fl ui of i n which <”> will be supplied with the reactive area and / or modification of the own age <”> of the filter medium, with consequent considerable reduction of the y urri i ni et t at i.

B) The method represents a various ante of method A), in which the suspension with the ores from and 42, the destabilizing agent 43 and the eventual third fl ui do are the cont errpor aneament and (or possibly also the n different lands) from different points 2, 3 in the l o space o trarrite the associated use of techniques of different i n ezi ons. For example or more ezometers, <'> di rect push_, tri ncee i nfi ltranti, etc. There is no rrritatio n to the use and to the conrbi nation of the l eechnical that can be used for the two prices, but the choice must be made on the basis of technical and technical considerations. and site specific reviews.

C) The ri chi method is the presence of at least one point of i ni ezi on 1 with the possibility of i ni ezi on on pi à l ivel l i 5, 6 (for example or pi ezometers nml t i I i vel I o, <'> di rect push_, etc.). The destabilizing agent, the col or the de and the eventual and third flow are the cont errpor aneament nets (or possibly also the n different territories) at the same point of ine nition , rra a l ivel l i (deep t <”>) different. Re-mixing takes place by exploiting the proper age of the two inlet fl ues, eg difference in densities t <”>, difference in t errper at ur a, etc. An example can be represented by the l <'> the ezi on of a highly concentrated suspension of iron parts and oxides (density <-> radius hours) on the higher level and a slightly higher solution. concentrated calcium chloride (density <-> rri nore). Knowing and / or checking the own age <-> fi si that of the two fl ui e adjusting the range of the ezi on and the distance verti cally between the points of i ni eti on <■> it is possible to check the remixing point between the destabilizing agent and the col l or the herein of the formation point of the reactive zone and / or the modification of the own age <-> of the filter medium.

IVbtodi ad i n ezi on deferred in the terrp:

D) The method provides for the connection of the collet or of the agent destabilizing from a single point of i nition 1 (or possibly also from different points) with one of the techniques you have previously l ustred or any other technique suitable for your purpose. The col l or de and the destabilizing agent are sequenced to the mind (phase of ini et on in different terrps) from the same point of ini one. The remixing <■> obtained by exploiting the own eth-chi rii so that of the two fl ui di and the narri that of the aquifer, for exerrpi or of dispersion the narri ca, different vel oci t <-> di rri thanks i n fal da, delayed transport of one of the two fl ui di, strong contrast of visibility <”>, <'> chaoti c advecti on_, etc. A third fl ui having its own et <"> so that it does not interfere nH with the col l or the de, nH with the destabilizing agent nH with the filter medium, possibly water, may be the ned between the inlet phase of the collet and that of the ezi on of the destabilizing agent to avoid the rectal contact of the two substances, in order to favor the rrigrati on in aquifer and control l arne at the point of nib at on. A reduction and / or an increase in the flow rate of i ni e at opportune moments can be used to favor the choice between the two fl ues of and control the forrrat on position of the first reactive area and / or modification of the first age of the filter medium. IVbduI went to the range of i ng ezi on and the duration of the l e ngol e phases of i ng ezi on (col l oi de 8, destabil i izing 9, third fl ui do) <■> here nd it is possible to control t he point of ni choice. One of the possible examples can be represented by the sequencing of an ol eous error and a solution of sal i metal l i ci i n concentration which generates the breakdown of the the aforementioned error. The I <'> i n ezi on of the I <"> errul s i on and of the Sal i can possibly be interval l ated by a <'> i n ezi on of water to separate the two fluids and avoid rupture of the I <"> errul s i one i n near <-> of the point of i nrrri ss i on.

E) The method represents a various ante of method D), in which the suspension with the ores from the e, the destabilizing agent and the eventual third fl ui do a si ngol or point (or possibly also from different points). The sequencing of the col l or the de, of the destabilizing agent and of the eventual third fl ui do <■> followed by extraction cycles and r and the mnri ss i on (<'> push and pul I _) of the falda water in order to generate various actions of speed t <"> and the inversions of the fl rezi on l a ow and favors the re-heating. IVbduI went to the duration and scope of the different extraction phases and r e mnri ss i on <■> it is possible to check the point in which the rrmobi I i zzar e / r orrper and the suspension with the ores from the e. F) The method provides for the cont errpor ane (or possibly also the n different territories) and from a single point (or possibly also from different points) of the suspension with the or from the 42 and a destabilizing agent 43 slowly drying. The destabilizing agent is identified or suitably modified and / or modified in such a way as to be inert in the mind in contact with the suspension with the or from the and gradually activated. only after I <“> i nrrri ss i one in the basement. Knowing the age <"> of the destabilizing agent and modulating the dosages or <■>, it is possible to control the point in which its ni choice takes place by suspending it from the e and the consequent formation of the reactive zone and / or modification of the first age <”> of the f i t r ant e medium.

All the methods described above can be applied once or repeatedly, with different operating modes <"> and / or in the same order, even with the use of a collector. o of and / or different destabilizing agents and / or using different points and terrains of different ssi ons, can be individually regulated or can be linked to gold depending on the specifi c case applied negative. A non-irritating example can be represented by the repetitive application of the method with different operating modalities (for example duration of the l e phases and / or scope of ini nition) and / or by using different destabilizing agents and / or agents in order to create reactive zones with different characteristics in different points of the same filter medium. Consider, for example, the supply of reactive filtering agents having zones active against different counting agents (for example, or obtained by depositing nanoparticles of cells and zerovalent iron in a first zone, nanoparticles of cells and of iron bones in a second zone and / or activated carbon in a third zone), or the soil and / or subsoil reclamation (even at the ground floor i n following excavation of the subsoil itself) characterized by a heterogeneous cont arri nation in which it is necessary either the mnrobi I i zzar and nanopar t i cel I and of different nature, or in the case in which it is necessary or to create a reactor containing a filtering medium which is i onal i zzat o i n mini was differentiated from and drawn from the deposition of catalysts with the or from i of different nature at different points of the filter medium. The cases described above represent a non-exhaustive list of the possible methods for the control of the delayed and consequent deposition of collision strikes in the subsoil or taken separately in the space or and / or in the case of a suspension with the or from the e, of a destabilizing agent and of an eventual third fl ui do. Any other method of control of the transport of parcels in the subsoil that provides for the <"> i nseparated in the time and / or in the space and / or the delayed choice of a suspension with the The from the e, of a destabilizing agent and of a third fl ui do fall into the protection carrp of the invention.

A pri rio exerrpi o to implement the method for the control of the deposition and / or the delayed destabilization of the col l or the gold of stripping the filter media according to I <"> i The invention relates to the sequencing of reactive parts of iron oxide stabilized with a single acid and a destabilizing solution containing calcium salts or a coated column. with homogeneous quartz sand able to produce the corrpor t ament or a filtering medium of a granular type. The proposed eserrpl i f i cati on can be for example or representative of a collet i n an aquifer counting them for the purposes of its reclamation or the realization of a fi reactive sand lter for the treatment of waste fl ui to count them born. The parts of iron oxides can be used for the treatment of false counting and particularly for the removal of heavy metal resulting from adsorption and / or stimulation phenomena. the bi odegradation of counting them in many organs. When the parts of the cell and the calcium come into contact in the filter medium, the calcium modifi cates its own age <"> surface at the l e parts of the cell and returning corrpl them with the <"> single acid. The i nteratio n forces between cell parts change causing a reduction in stability <-> and mobility of the cell parts. Consequently, the parts of the cells aggregate and are reversed in the porous medium very close to the zone in which contact with calcium occurs. Check the position in which the contact between parts of the calcium takes place, the parts of the cell are the nrmobi I i zzat e and concentrate in a small portion of the filter medium returning a reactive area to the avoided content of cell parts.

Two tests carried out by means of a col onn iron oxide stabilized with aces of uniquely carried out in different operating conditions are described below:

A) Ini eti on of iron oxides of dispersed in water (without destabilizing eti on); B) Sequence initiation of iron oxides and a destabilizing solution of CaCl2 of dissolving water in intervals from the l <'> ini nition of water of oni ized used here as a third fluid not containing a concentrating destabilizing agent such as to generate a variety of the collet stabilization <->;

For both tests <■> a saturated filter col onna was used. 0.87 rm). All the suspensions have been injected in col onna at a constant flow rate of 1 nri / nri n using a peri porrpa from the workers. The suspension with the ores from <■> was prepared using a primary stock of stabilized iron oxides with unique acids of water purified up to a fi nal concentration of 10 g / L. The nano-parts of iron oxides are characterized by a narri c radius of 243 è 125 nm and by a potential al e zeta of 537 é 4 rrV when dispersed in the oni ized water.

Head) :

The protocol of i n ezi on has provided for:

preconditioning the porous medium with purified water for about 2 hours;

l i n ezi on of the suspension of parts of the cell and of wasted water for about 2 h; i rinse aqueous with purified water (about 2 h) to check the residual arrobi l it <”> of the l e parts.

Result: The cell parts have been very mobile if they are used in the water of oni ized. The almost total it <”> of the first part of the l e has passed through the col onna without interfering with the porous medium. At the end of the first test, a small fraction of the first part of the cell was deposited inside the second column and with a heterogeneous and casual distribution. Although this is an excellent result from the point of view of the mobilization of the parts of the cell and making it easier for them to operate, this corrpor t ament does not allow for a strife effi cient and control of the l e parts of the porous medium and the neighbors <”> of an eventual counting source. Once injected into the aquifer the facts, the cellular parts would continue the gold rii ng, bypassing the counting source, without making it possible to control the point of deposi on. Furthermore, due to adsorption of heavy metal, the controlled gold content could represent a secondary source of cont arri nation and hence a pos sibility of risk for health. and for the arrbi ente.

In the 1st to Fi g. 3 <■> depicted the concentration curve of parts of the suspension with the ores from and 42 in the time out of the column, and in the first Fi g. 4 <■> represented the profi l o of concentration i n col onn of parts on the subject of test A) of i n e t on: only a few parts on the cell have been deposited on the l <'> i nside of the l a column . Test B):

The protocol was carried out according to one of the possible configurations envisaged by the method object of this invention and provided for: 9 preconditioning of the porous medium with the destabilized solution l i zzant, 10 rm CaCl2 of dissolving in water, 3 h;

9 i n ezi on of water of oni ized, 130 s;

9 i n ezi on of the suspension of cell parts (C = 10 g / L), 200 s;

9 i ni ezi on of water of oni ized, 340 s;

9 ri duzi one of the l to flow of i ni ezi one from 1 ni / ni n to 0. 25 ni / rii n;

9 i n ezi on of de oni ized water at flow rate r i dot t a, 2 h.

11 col l oi de (iron bones) and destabil i izing are injected from the same point between n different moments (deferred in time, according to the method D reported in table 1). To promote the transport of the parts to the destination area and to avoid the accumulation of parts to the point of arrival, an inflow of water from the oni ized It is also interposed between the iron oxide rrpul ys and the calcium oni es in order to favor the rrigration of the parts in the target area. The remixing between the parts of the iron oxide and the calcium is made here due to the effect of the dispersion of the narrative ducts. The difference in rrigration speed of the two reagents is also exploited. The Calci is in fact injected upstream of the hill as it is subjected to adsorption on the porous medium and hence delayed. Also the reduction of the flow rate, and here the fl ow speed <">, after the first four phases has the right to favor the remixing between the Calcium and the cel parts. he and the gold consequent to the rmobi I i zzaz i on. The check of the point in which the rrmobi I i zzat e the parts of the cell are started, starts by cal i bring the duration of each phase of the ini nition, with particular attention to the duration of the phase of the ini nition. of purified water which separates the calcium from the cell parts and of the purified water phase of the ini nition phase prior to the reduction of the l a inlet range. In the case of app i cati ons to l a tier of carrp, the duration of each phase of ini eti on <■> is decided on the basis of specifi c considerations relating to the char acteristics of the contiguous and calculated site. i brata with evidence s for i rrent al i i n l aboratori o. These stages of inception can be repeated with the same order or with a different correction, to accurrulate the parts in a desired portion of the filter medium or in more portions. different types of the same filter medium, with different additives of and / or destabilizing agents in order to ensure the effi cacy of the decontamination technology.

In the 1st to Fi g. 5 <■> depicted the concentration profile in col onna after test B) of ini nition and extraction in aqueous suspension of the cell parts retained on the sol i phase.

Result: At the end of test B), a separation of the neck l or the inside of the porous medium was obtained. The cell parts were 1 rmobi I i zzat and in the central part 15 of the column creating a reactive zone capable of adsorbing heavy metal. According to the current state of the art, an obtained deposition of the parts of the cell would require the deposition of a more or less homogeneous layer along the entire column up to the radius. joining of the target zone, with consequent <'> waste, of a large amount t <”> of reactive material. Through the control of the oterrporal spaces and of the nrmobi I i zzat on / breakage of the suspension with the l or the from and <■> instead it is possible to favor the rrigration of the col l or the up to the target area , considerably reducing the amount of reagent t <”> injected, with a consequent reduction in intervention costs. An exactly similar result was obtained by repeating the tests in a column in which a portion of natural and sandy subsoil was used as a filter medium <■> carpi onament o n a site counting them, showing the possi bi l it <”> to apply the method on fi ltering miters of different nature and conrpos i t i on.

During the test <■> the difference in pressure at the ends of the first column and after the test was also resolved, avoiding an increase in the load loss following the deposition of the parts , which caused a rri nuzi on of the l a permeate l it <”> of the filter medium. The method object of this invention, one of which is possible to apply <■> has been described in this example, can be used here also to generate a carib ament of its own age < ”> Droducts tell us about the portion of the filtering medium in which the dispersed phase of the col l i de <■> is deposited.

At the end of the test, the cell parts turn out to be the reverse ones well deposited in the porous medium and do not recover in the case of various I i rited action of the current and geochemical drogeol conditions. rii that, for example or reduction of the i onic force of the avaggi o solution, and increase of the i n flow rate. The proposed method therefore guarantees the l ocal i zzat on of the hill in a narrow area of the aquifer (target area) and its subsequent i rmobi I i zzat on, avoiding the generation of possible secondary and cont arri nat on sources. This is very important, especially for the applications of l arga scal a, in which the ones of suspension with the ores from and the nietted are very large, and the n parts are in the carrp of the reclamation, where <■> it is important that the col l or de, still mobile, do not transport with the container.

A second example of implementation of the method for the control of the deposition and / or delayed destabilization of the stripping gold of the filter media according to I <"> the inventions one concerning the ini ng of a col l or the consequent i rmobi I i zzat i on of its lost phase <■> been rrul ata trarriti I <"> auses I i o of the model l o numbers with MMIVBD . This eserrpi o i n parts <■> rel ative to the I <"> i nrmobi I i zzaz i on of nanopar t i cel I and Goet i t and i n following contact with a concentrated solution of calcium chloride (agent destabilizing). In the model I presented, two wells of i n ezi on 2 and 3 i n Fi g. 6 and Fig. 7 are partially fenestrated in an aquifer having a saturated thickness of 5 no porous t <"> 0.25, conducting bi I i t <"> i draul i ca 0.0005 rrfs and dense t <"> of bul k 1700 kg / rrB. The distance between the two wells of i n ezi on <■> of 3 m The fenestrated part of the wells 5 i n Fi g.7 has a length of 2 rp and is at a depth of t <"> corrended between 1.5 m and 3.5 m from the carrpagna floor. The gift or considered for the business has months of 10 x 10 m. one i n ezi on of a suspension with the ores from and to the interior of a tank (reactor) containing a natural or artificial filtered medium and in which <■> necessary or to deposit the phase of dispersed constituting the col l or the de, it runs for example or in the case of the on-site treatment of subsurface counts born. The suspension with the injections has a concentration of 10 g / L, while for the destabilizing agent <■> a concentration of 200 rrM is considered. of iron injected are characterized by a radius or narri c of 243 è 125 nm and by a potenti al e zeta of 537 è 4 rrV when dispersed in water of the oni ized. The col l or the de and the destabilizing agent were injected cont errpor aneament and from two different wells (according to method A) in Fi g. 2) for about 17 rri n at a flow rate of 24 l / rri n. In total, 0.4 rrf of suspension with l or from and 42 were nietted, equivalent to a pot of 4 kg of nanoparticle I and iron oxide, and 0. 4 rrf of sol uzi one of calcium chloride or. Subsequently, water <■> continued to inject water, here used as a third fl ui do, for 43 rrri nutes in order to favor the rri ng of the col l oi de and l <'> destabilizing agent up to the re-selection zone where the fraction of dispersion constituting the col l or the de verr <”> i rmobi I zzat a. The Fi g. 6 shows a view of the upper floor of the used derrick, with a well 2 of inlet on the col I or of a well 3 of ini et on of the destabilizing agent and a zone 23 for selection with the de-agent and destabi I zant e.

The Fi g. 6 also shows the nappa there is the top of the suspension concentrations with the ores from and 42 and of destabilizing agent 43 at the issue of the l <'> ezi on. The rejection zone 23 represents the point at which the suspended fraction of its suspension with or from has been deposited. The Fi g. 7 shows a sizing in the section of the used gifts and a tassel of the suspension concentrations with the or from the e 42 and the destabilizing agent 43 other than the I <"> i ni ezi one.

The Fi g. 8 shows the results of the rrul ation of the differentiation in and in the space of nanoparticle cells and goetite and calcium chloride. The dashed curve 33 represents the destabilizing agent, the point curve ni 31 represents the cell parts of the col l or of the phase l i here from, while the continuous line 32 represents the cell parts of the col l oi de i nrmobi I i zzat e. In particular, the concentration profiles are represented l a l a joining the two wells of the l and parts of the l and still suspended in the ffaassee The ii qquuii ddaa ,, of the destabilizing agent and of the l e parts of the mnrobi I i zzat e. Evidently, the method used favors the deposition and dismounting of the hills in the desired area and on an I i rited portion of the aquifer (approximately one meter), favoring the in situ supply of a barri it was reactive. This allows the accurrul o of the cell parts in the desired area and the increase of the concentration useful for the reclamation intervention. movi l it <"> in the left side of the bed, where the destabilizing agent is not <■> present, while on the contrary o <■> it is possible to control the deposition in the the area between the two wells thanks to the formation of a remixing area with the desist abi i zzant e. wells, in addition to the concentration of the coll oe of the and of the destabilizing agent of the nietted, <■> it is possible to control the point where the remixing of the two contiguous takes place and the consequent the rrmobi I i zzaz i on of the col I or the de.

Advantageously, the method for controlling the deposition and / or destabilizing of the collet or of the filtering media and the stripping of the spaces at the and of the invention allows to have a suspension with the the ors from and established the or met a- st abi I and during the phases of the ezi on, in order to have a good rrobi l it <"> in the subsoil, until the hills of the same have reached The target zone, which cont errpor aneament and allows the dispersion phase constituting the hills to settle once they have reached the target zone, and no longer arobi I i / nrobi I i zzabi I i i n successive phases.

Another advantage of the present invention <■> is that of reducing the effi cacy of the reclamation, obtaining a final distri bution and obtaining and control of the collectors or of the reagents, conveyed with the andol i in a portion of the rrit on of the subsoil and at the desired distance from the point of ine nition (target zone).

Some preferred embodiments of the present invention have been read and described above: obviously, the remedies will be available to those skilled in the art and evidently numerous various anti and modifi cations, functional mentally equivalent to the previous ones, which fall into the protection case of the invention as evi- dence in the l e l e resale cati ons.

Claims (17)

CLAIMS 1. The method for the control of the deposition and / or the delayed destabilization of the col l or of the stripping gold in the correct filter media and the phases of: i ntroduce at least one suspension with the ores from and at least one filter medium; introducing at least one destabilizing agent in the same filtering medium, said destabilizing agent being able to generate a destabilization and / or rupture and / or acceleration of the process of natural destabilization and of the the suspension with the ores from and / or generate an aggregation and / or coagulation and / or fl occul ation and / or deposition and / or immobi lization of the lost phase constituting the col l or de; said steps of disassembly of the collector of the and of the destabilizing agent in the filtering medium being carried out in a separate way in the space and / or in the space or to realize a ni choice of the suspension with the ores from and with the destabilizing agent and a consequent controlled deposition of the lost phase constituting the col l or the same to modify the own age " > meccani che, chi rii che, chi rii cof i si che, dr odi narri che, geochi rii che and / or surfaces beyond the filter medium itself or the fl ui do that the at t r have knows. 2. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of striation in the filter media according to resell 1, characterized by the fact that the col l o de to be deposited in the filtering medium consisting of a stable, metastable and weakly stable suspension of at least one of: a sol e phase, a phase l here from, a gaseous phase of dispersed i n a continuous phase l i here from s to dent e. 3. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping the filter media according to resell 1 or 2, characterized by the fact that the with the destabilizing agent and the destabilizing agent are the ntroduced in the filtering medium separately in the terrp, with at least one sti on point and the n different tiers of i mnri ss i on, and / or in the space or , with at least two points or technol ogi and or techniques of sti nts rmi sis on, in order to obtain the destabil it on of the col l or of and / or of its phase of dispersion following the controlled in the territory and / or in the space or between the I with the I or the de and I <“> destabilizing agent. 4. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filter media according to which one of the previous resales, characterized by the fact that a third fl ui do not containing a destabilizing agent in concentrations such as to generate a variety of the stabilization <-> of the col l or the de, or consisting of sol a water, <■> i nterposed between the phase of inhibition of the collet and that of the remixing of the destabilizing agent to avoid the rectal contact of the two substances, in order to favor the and control l arne the remix point. 5. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of striation in the filtering media according to which one of the previous resell ons, characterized by the fact that the modal it <-> of i mnri ss i one, l and how many t <"> remittances, the concentration of the col l or the and / or of the destabilizing agent, the flow rates used and the duration of the l e ngol e phases of the initiation of the col l or de, of the destabilizing agent and of the third fluid when pending from the l a resell cation 4, are modulated to control the are the selection point and here the destabilization of the suspension with the or from and / or of its lost phase. 6. The method for the control of the deposition and / or delayed destabilization of col l or the gold of stripping of the filter media according to which one of the previous resell ons, characterized by the the fact that the dividing of the neck or de, of the destabilizing agent and of the third fl ui do when pending from the l a resell cation 4, in the filtering medium takes place sequences to the mind, with phases of i rmi ssi ons that take place in different territories, from the same point or from different points of i mnri ss i on. 7. The method for the control of the deposition and / or delayed destabilization of the col l or of the gold stripping of the filter media according to which one of the previous resell ons, characterized by the fact that I <"> the mnri ss i on of the col l oi de, of the <'> destabilizing agent and of the third fl ui do when pending from the l a resell cati on 4, in the filtering medium takes place, cont errpor aneament e o the n different terrpi, the n different points in the l o space. 8. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filtering media according to which one of the previous resell ons, characterized by the the fact that the col l or de, the destabilizing agent and the third fl ui do when pending from the l a resell cation 4, are put back into the filter medium thanks to the correct use of f erent i mnri ssi on. 9. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filter media according to which one of the previous resell ons, characterized by the the fact that the introduction of the col l or de, the destabilizing agent and the third fl ui do when dependent on the l a resell cation 4, in the filter medium takes place at the same point di i mnri ss i one, rra a l ivel l i o deep t <”> di ff erent i. 10. The method for the control of the deposition and / or delayed destabilization of the col l or of the gold stripping of the filter media according to which one of the previous resell ons, characterized by the the fact that I <"> the mnri ss i on of the coll or de, of the destabilizing agent and of the third fl ui do when pending from the l a resell cati on 4, in the fi ltering medium takes place for the n ezi on sequences to and of the respective fl ues of and / or for positions or alternation and / or inversion of the fl ow rezi on l a. 11. The method for the control of the deposition and / or delayed destabilization of the stripping gold of the filter media according to which one of the previous resell ons, characterized by the the fact that <'> destabilizing agent <■> a slow drying destabilizing agent. 12. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filtering media according to which one of the previous resell ons, characterized by the the fact that the steps of the method are repeated cl i cally. 13. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filter media according to the resell 12, characterized by the fact that the phases of the method are repeatedly cyclically with different operational rrodal it <-> or various cyclic ordering, with the use of col l or different and / or destabilizing agents and / or using points and territories of the ssi on of verses. 14. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stripping of the filter media according to which one of the previous resell ons, characterized by the the fact that the filtering media are at least one of: porous media, granular media, fractured media, porous or fi ltering earth, the rrpacking and earthing the rrpaccati, the earthing of pores and / or channels and / or chambers nterconnected between gold, sponges, nets and earthed nets with ari, elements with a ni do d <"> bee structure, fi lters, fabrics, foams and foams al i foamed, bi ol ogy fi lters, earthworks that allow the filtration and / or the infi ltration and / or permeation and / or transport of fl ui of its own or nt er no. 15. The method for the control of the deposition and / or delayed destabilization of the col l or the gold stripping of the filter media according to which one of the previous resell ons, characterized by the fact that the remixing between the col I or the and the or the destabilizing sol uzi ons / suspensions takes place directly inside the filter medium through at least one of the following siri mechanisms: speed difference oci t <"> in the filter medium, delayed transport of the col or the de and / or of the destabilizing agent, <'> fi ngeri ng_ visoso, chaotic convection, difference in densities t <" >, of dispersion of narratives, contrasts of terrperature and / or vi scosity <"> and / or density <"> and / or phase, electrophoresis, el et tr os nros i, generation of elec tric carrps , electromagnetic or electromagnetic, slow drying of the destabilizing agent and / or of the dispersed phase constituting the col l or the de, application of ultrasound, exploitation of the heterogeneity <"> natural i o nduced of the bi I i t <"> draul i ca and / or of other own ages saturation. 16. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of striation in the filter media according to which one of the previous resell ons, characterized by the the fact that the filter medium <■> the soil and / or the subsoil, and the n parts of the porous medium is saturated, or the vadose zone, or the fringes at the head or the fal de i dri which, freati which, either a corrbi nation of the previous one, or the filter medium <■> a portion of the ground and / or subsoil or specially extracted and prepared for the of the destabilizing agent and of the third fl ui do when pending from the l a resale 4. 17. The method for the control of the deposition and / or delayed destabilization of the col l or the gold of stri buzi on the filter media according to the resell 16, characterized by the fact that I <" > i nt r oduz i on of the col l oi de, of the l <"> destabilizing agent and of the third fl ui do when pending from l a resell cation 4, in the subsoil or takes place through at least one of: i n ezi one i n wells si ngol i; i ni ezi one i n wells rrul t i I i vel I o; <'> di rect push_; tri ncee; dosages or at the most carrpagna; application of a positive pressure, by aspiration or by the effect of the sol a serious t <”>; due to fracturing of the medium or permeation; what is asi al tra rrodal it <”> suitable for conveying the materials to the i in the sub t os uol o.