FR2860532A1 - DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION - Google Patents
DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION Download PDFInfo
- Publication number
- FR2860532A1 FR2860532A1 FR0311582A FR0311582A FR2860532A1 FR 2860532 A1 FR2860532 A1 FR 2860532A1 FR 0311582 A FR0311582 A FR 0311582A FR 0311582 A FR0311582 A FR 0311582A FR 2860532 A1 FR2860532 A1 FR 2860532A1
- Authority
- FR
- France
- Prior art keywords
- water
- mixture
- vase
- devastation
- process according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 239000008394 flocculating agent Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 230000002459 sustained effect Effects 0.000 claims 1
- 239000008240 homogeneous mixture Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000005204 segregation Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 6
- 238000005189 flocculation Methods 0.000 description 5
- 230000016615 flocculation Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/902—Component parts, e.g. arrangement or adaptation of pumps for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9218—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with jets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
- E02F3/9231—Suction wheels with axis of rotation parallel to longitudinal axis of the suction pipe
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9287—Vibrating suction heads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/02—Conveying equipment mounted on a dredger
- E02F7/023—Conveying equipment mounted on a dredger mounted on a floating dredger
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
Dispositif pour le dévasement sans pollution ni consommation d'eau notables.L'invention concerne, dans le domaine du génie civil, le dévasement de retenues et cours d'eau.Les techniques habituelles présentent plusieurs inconvénients, entre autres: rejets polluants, consommation d'eau considérable, difficulté de manipulation de la vase déplacée.Le dispositif selon l'invention est, préférentiellement, caractérisé par la combinaison des procédés suivants qui permet de remédier aux inconvénients cité:mise en vibration de la vase à traiter; découpage de la vase par un cutter de vitesse suffisante pour obtenir, avec apport d'eau, une mixture homogène; pompage de la mixture; injection d'un produit floculant provoquant, au point de rejet, la ségrégation de la mixture; rejet ou récupération d'eau claire; manipulation, sans entrainement hydraulique, et réemploi de la vase floculée.Des variantes consistent à modifier, selon les cas d'espèces, l'impact relatif des divers procédés combinés.Le dispositif selon l'invention est particulièrement approprié au dévasement de lacs de barrages.Device for the devastation without pollution or significant water consumption. The invention relates, in the field of civil engineering, the devastation of reservoirs and rivers. The usual techniques have several disadvantages, among others: polluting discharges, consumption of considerable water, difficulty in handling the displaced vase.The device according to the invention is, preferably, characterized by the combination of the following methods which makes it possible to remedy the mentioned drawbacks: vibration of the sludge to be treated; cutting of the vase by a cutter of sufficient speed to obtain, with addition of water, a homogeneous mixture; pumping the mixture; injection of a flocculant product causing, at the point of rejection, the segregation of the mixture; discharge or recovery of clear water; manipulation, without hydraulic drive, and reuse of the flocculated vase.Variants consist in modifying, depending on the case of species, the relative impact of the various combined processes.The device according to the invention is particularly suitable for the devastation of dam lakes .
Description
La présente invention concerne, dans le domaine du génie civil, unThe present invention relates, in the field of civil engineering, a
dispositif pour éliminer la vase accumulée dans les retenues d'eau (lacs de barrages notamment), sans pollution ni consommation globale d'eau notables, et ce, par modifications successives du comportement rhéologique et manipulation des vases. device to eliminate the accumulated mud in the water reservoirs (dams lakes in particular), without significant pollution or overall water consumption, and this, by successive modifications of the rheological behavior and manipulation of the vases.
Le dépôt en fond des retenues et cours d'eau (également que l'eau y stagne ou y circule) de vases, issues notamment des bassins versants, réduit leur capacité (jusqu'à plus de 50% du volume disponible) et abrège leur durée de vie. La part solide de cette vase saturée d'eau, est constituée en majorité par des argiles ou des limons (silts en anglais) dont la dimension des particules élémentaires est de l'ordre de moins de 1 à quelques dizaines de microns. The deposit in the bottom of reservoirs and watercourses (also that the water stagnates or circulates) vases, especially from watersheds, reduces their capacity (up to more than 50% of the available volume) and shortens their capacity. lifetime. The solid part of this water-saturated sludge consists mainly of clays or silts (silts in English) whose elementary particle size is of the order of less than 1 to a few tens of microns.
La technique habituellement utilisée, dès que la dimension de la retenue justifie une organisation rationnelle, schématisée sur la figure 1, consiste à découper en surface la vase en place (4) par un couteau tournant autour de son axe, dit cutter (5), et monté sur une drague (1); et à pomper de l'eau (3) chargée de ces morceaux de vase dans des conduites flottantes (2), qui rejettent cette mixture généralement à l'aval de la retenue (6), d'où s'écoule l'eau chargée de particules microscopiques de vase (7), alors que le restant des morceaux de vase érodés s'accumule (8). The technique usually used, as soon as the dimension of the restraint justifies a rational organization, shown schematically in FIG. 1, consists in cutting the surface in the vase (4) by a knife rotating about its axis, called a cutter (5). and mounted on a drag (1); and pumping water (3) loaded with these pieces of sludge in floating pipes (2), which reject this mixture generally downstream of the reservoir (6), from which flows the charged water microscopic particles of slime (7), while the remaining eroded slime accumulates (8).
Ce dispositif présente de graves inconvénients renchérissant considérablement ou empêchant l'opération, notamment: - Pour éviter que des bouchons de vase obstruent les conduites de refoulement, il est nécessaire d'entrainer les morceaux de vase découpés, rejetés par les conduites, dans un fort courant d'eau, ce qui induit une consommation d'eau d'un volume largement multiple de celui de la vase en place évacuée avec ce volume d'eau (sachant qu'après la phase transitoire de dépôt, les vases de diverses origines géologiques atteignent un état pseudo stable caractérisé par une teneur en eau et une cohésion relativement uniformes, croissant lentement avec la profondeur de vase). Non seulement cette consommation d'eau est onéreuse, mais souvent, elle ne permet de travailler qu'après de courts épisodes pluvieux. This device has serious disadvantages considerably increasing or preventing the operation, in particular: - To prevent the plugs clog the flow pipes, it is necessary to drive the cut pieces of sludge, rejected by the pipes, in a fort water flow, which induces a water consumption of a volume largely multiple of that of the vase in place evacuated with this volume of water (knowing that after the transitional phase of deposit, the vases of various geological origins reach a pseudo stable state characterized by a relatively uniform water content and cohesion, slowly increasing with the depth of silt). Not only is this water consumption expensive, but often it only works after short rainy periods.
- La mixture (6) rejetée est, malgré une couleur uniforme, de concentration (ci-après l'expression: concentration de la vase ou de la mixture, signifie: rapport du poids de matière sèche d'un volume de vase à celui de l'eau concernée par ce volume de vase, ou de mixture) hétérogène, contenant des morceaux de vase (8) à teneur en eau proche de celle de la vase en place, et de l'eau polluée (7) par les particules de vase érodées des morceaux lors du transport, bien moins concentrée que (8) , qui se dépose dans la suite du cours d'eau (souvent sur plusieurs kilomètres, vu la faible dimension des particules solides) et provoque une pollution prohibitive. - The rejected mixture (6) is, in spite of a uniform color, of concentration (hereinafter the expression: concentration of the mud or of the mixture, signifies: ratio of the dry matter weight of a vase volume to that of the water concerned by this heterogeneous volume of sludge, or mixture), containing pieces of sludge (8) with a water content close to that of the sludge in place, and polluted water (7) by the particles of eroded vase pieces during transport, much less concentrated than (8), which is deposited in the course of the course of water (often on several kilometers, considering the small dimension of the solid particles) and causes a prohibitive pollution.
- Les vases sont plus ou moins thixotropiques, c'est-à-dire que leur résistance au cisaillement au repos est plus élevée que lorsqu'elles sont en mouvement, ce qui, pratiquement, empêche leur dragage et leur manipulation par des pelles ou des godets, et a fait préférer leur transport hydraulique, globalement gravitaire. - The vases are more or less thixotropic, that is to say that their resistance to shear at rest is higher than when they are in motion, which practically prevents their dredging and handling by shovels or shovels. buckets, and preferred their hydraulic transport, generally gravity.
Le dispositif selon l'invention consiste à réduire ou supprimer ces inconvénients par la combinaison originale de procédés dont le principe est connu, mais n'est pas appliqué pour le dévasement, faute de leur combinaison. Dans sa forme préférentielle, représentée en figure 2, il consiste à: -a) Soumettre la vase (4) à des vibrations forcées qui réduisent ou détruisent sa résistance au cisaillement (laquelle, dans les sols fins qui constituent la majeure partie de la vase, est assimilable à sa cohésion, c'est-à-dire à sa résistance au cisaillement sans surcharge), en faisant vibrer le cutter (10), etlou par apport de sources de vibrations 2860532 2 indépendantes, constituées préférentiellement d'aiguilles vibrantes (9), disposées près du cutter, car la source de vibrations ne détruit la cohésion de la vase que dans un rayon limité. The device according to the invention consists in reducing or eliminating these disadvantages by the original combination of processes whose principle is known, but is not applied to the devastation, for lack of their combination. In its preferred form, represented in FIG. 2, it consists in: -a) submitting the sludge (4) to forced vibrations which reduce or destroy its resistance to shear (which, in the fine soils which constitute the majority of the silt , is comparable to its cohesion, that is to say to its shear strength without overload), by vibrating the cutter (10), and / or by supplying independent sources of vibration, preferably consisting of vibrating needles ( 9), arranged near the cutter, because the source of vibrations destroys the cohesion of the vase only in a limited radius.
-b) Découper la vase vibrée avec un cutter (10), vertical ou inclinable, rotatif ou non, mais à forte vitesse (ce que permet, à puissance égale, la réduction de la cohésion par la vibration) en sorte d'obtenir, par mélange avec l'eau, pompée simultanément de la retenue (3) et/ou injectée séparément (11), une mixture homogène (à la différence des morceaux de vase entrainés par l'eau) dont la teneur en eau soit appropriée à la suite du traitement. -b) Cut the vibrated vase with a cutter (10), vertical or tilting, rotating or not, but at high speed (which allows, at equal power, the reduction of the cohesion by the vibration) in order to obtain, by mixing with the water, simultaneously pumped from the reservoir (3) and / or injected separately (11), a homogeneous mixture (unlike water-driven mud pieces) whose water content is appropriate to the following the treatment.
-c) Pomper cette mixture homogène (pompe 12). -c) Pump this homogeneous mixture (pump 12).
-d) Injecter dans la conduite de refoulement (13) de la pompe un produit floculant (de nature chimique appropriée à celle de la vase), sous forme préférentiellement liquide par pompage depuis un réservoir (14), en sorte que, de préférence au point de rejet (15) de la mixture ainsi traitée, les particules d'argiles et limons s'accumulent en flocs (16) qui, par leur taille millimétrique, précipitent par gravité, provoquant la ségrégation de la vase floculée et de l'eau claire libérée (17) qui est récupérée dans la retenue et/ou rejetée ailleurs, notamment en aval. -d) In the discharge line (13) of the pump, inject a flocculant product (of a chemical nature appropriate to that of the sludge), in preferentially liquid form by pumping from a reservoir (14), so that, preferably point of rejection (15) of the mixture thus treated, the particles of clays and silts accumulate in flocs (16) which, by their millimetric size, precipitate by gravity, causing the segregation of the flocculated flask and water released clear (17) which is recovered in the reservoir and / or discharged elsewhere, especially downstream.
Le rendement de la floculation dépend nettement de la concentration de la mixture traitée. Ne peut donc correctement floculer qu'une mixture de concentration appropriée et relativement homogène, d'où la nécessité du traitement préalablement décrit. En outre, la distance entre la ou les points d'injection des floculants et le point de ségrégation entre la vase floculée et l'eau libérée, doit être choisie de façon optimale, pour permettre la formation des flocs par le mélange du courant de mixture (de la pompe 12) et du courant de floculant (du réservoir 14), sans les détruire (au repos, ou soumis à des manipulations moins turbulentes, les flocs sont stables). The yield of the flocculation clearly depends on the concentration of the treated mixture. Therefore, only a mixture of appropriate and relatively homogeneous concentration can be properly flocculated, hence the need for the previously described treatment. In addition, the distance between the flocculant injection point (s) and the segregation point between the flocculated flask and the released water must be optimally chosen so as to allow the flocs to be formed by mixing the mixture stream. (of the pump 12) and the flocculant stream (of the tank 14), without destroying them (at rest, or subjected to less turbulent manipulations, the flocs are stable).
-e) Choisir le mode et la zone de dépôt, ainsi que la destination, le mieux adaptés au cas d'espèce, sachant que la floculation, grossissant les particules élémentaires de la mixture d'origine argileuse ou limoneuse, leur confère un frottement interne, inhibe leurs propriétés thixotropiques et améliore leur perméabilité, rendant ainsi la mixture traitée manipulable pas seulement par entrainement hydraulique, mais par exemple par godets, pelles ou tapis roulants disposés à l'endroit le mieux approprié, en vue de son évacuation ou de sa réutilisation (par exemple agricole ou en remblai). La mixture, floculée selon l'invention, a, en effet, des caractéristiques mécaniques supérieures à celles de la vase déplacée par la méthode classique, et, remblayée hors de la nappe phréatique, elle a un frottement interne progressivement suffisant pour lui conférer un comportement de sol frottant et portant, qui permette, entre autres, de la terrasser, ou la surcharger, éventuellement après compactage. -e) Choose the mode and the deposit zone, as well as the destination, best suited to the case in question, knowing that flocculation, magnifying the elementary particles of the mixture of clay or silty origin, gives them an internal friction inhibits their thixotropic properties and improves their permeability, thus rendering the treated mixture manipulable not only by hydraulic drive, but for example by buckets, shovels or conveyor belts placed at the most appropriate place, with a view to its evacuation or reuse (eg agricultural or embankment). The mixture, flocculated according to the invention, has, in fact, mechanical characteristics superior to those of the vase displaced by the conventional method, and, backfilled out of the water table, it has an internal friction gradually sufficient to confer a behavior rubbing soil and carrying, which allows, among other things, to overcome, or overload, possibly after compaction.
Sur le figure 2 est représentée l'application de l'invention avec évacuation par un tapis roulant (18) se déversant dans un camion (19). Le mode d'évacuation dépend évidemment des cas d'espèce. In Figure 2 is shown the application of the invention with evacuation by a conveyor belt (18) discharging into a truck (19). The mode of evacuation obviously depends on the particular case.
Outre le rejet d'eau claire, et sa récupération, l'invention permet, par l'amélioration du frottement interne du dépôt de vase traitée par rapport à la vase initiale, sa manipulation. In addition to the discharge of clear water, and its recovery, the invention allows, by improving the internal friction of the treated silt deposit relative to the initial slurry, its handling.
De l'efficacité de la floculation dépendent la récupération d'eau (notamment en pays arides) et/ou le rejet d'eau claire (indispensable contre la pollution par l'eau chargée s'écoulant du dépôt de vase, qu'on observe dans la technique habituelle à ce jour), ainsi que la manipulation de la mixture précipitée, plus aisée que le seul entraînement hydraulique. Et l'efficacité de la floculation est conditionnée par la phase initiale de l'invention, nécessaire pour transformer la vase originelle en une mixture homogène, dont la concentration appropriée permette l'application de la floculation dans des conditions économiques. The efficiency of flocculation depends on the recovery of water (especially in arid countries) and / or the discharge of clear water (essential against pollution by the charged water flowing from the silt deposit, which is observed in the usual technique to date), as well as the handling of the precipitated mixture, easier than the only hydraulic drive. And the effectiveness of the flocculation is conditioned by the initial phase of the invention, necessary to transform the original slime into a homogeneous mixture, whose appropriate concentration allows the application of flocculation under economic conditions.
Sous ses formes dérivées, l'invention est caractérisée par l'adaptation aux cas d'espèce: - en modifiant ceux de ses éléments qui ne s'avèrent pas indispensables dans certains cas, par exemple en conservant (figure 3), après homogénéisation et adaptation de la concentration de la mixture, l'entrainement en conduite (2), l'injection du floculant (14) avant son extrémité, et le renvoi d'eau claire (17) dans la retenue depuis l'aval; ou bien, si localement, une faible cohésion des vases (avant fin de leur sédimentation, ou en cas de faible composante argileuse) permet de s'affranchir de sa destruction par vibration ou de leur dilution, pour obtenir un mélange approprié à la suite du traitement; ou bien si, localement, une vase sableuse permet la précipitation de la mixture sans adjonction de floculants; - ou en adaptant - ou complétant - certains de ces éléments à des contraintes annexes, par exemple en utilisant la vibration pour faciliter le déplacement de ces éléments (cutter, drague...), pour créer des chenaux, ou pour améliorer l'usage de grilles destinées à arrêter de gros éléments perturbateurs (arbres et végétaux, blocs...); ou bien, en l'absence d'eau libre au-dessus de la vase, en injectant initialement une eau d'apport extérieur et la réutilisant. In its derived forms, the invention is characterized by adapting to the specific cases: by modifying those of its elements which do not prove indispensable in certain cases, for example by preserving (FIG. 3), after homogenization and adaptation of the concentration of the mixture, the driving in pipe (2), the injection of the flocculant (14) before its end, and the return of clear water (17) in the reservoir from downstream; or, if, locally, a weak cohesion of the vases (before the end of their sedimentation, or in case of weak clay component) makes it possible to be freed from its destruction by vibration or their dilution, to obtain an appropriate mixture following the treatment; or if, locally, a sandy silt allows the precipitation of the mixture without the addition of flocculants; - or by adapting - or completing - some of these elements to additional constraints, for example by using vibration to facilitate the movement of these elements (cutter, drag ...), to create channels, or to improve the use grids to stop large disruptive elements (trees and plants, blocks ...); or, in the absence of free water above the silt, initially injecting external water and reusing it.
L'invention est applicable, pour déplacer tous amas de sols à prépondérance de particules fines, sans consommation globale d'eau ni pollution notables, notamment pour le dévasement des lacs de barrages. The invention is applicable, to move any cluster of soils with a preponderance of fine particles, without significant overall consumption of water or pollution, especially for the devastation of dam lakes.
Claims (9)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0311582A FR2860532B1 (en) | 2003-10-03 | 2003-10-03 | DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION |
PCT/FR2004/002456 WO2005033422A2 (en) | 2003-10-03 | 2004-09-28 | Method for dredging without the significant consumption of water nor significant causing of pollution |
ES200650026A ES2319841B1 (en) | 2003-10-03 | 2004-09-28 | CLEARANCE PROCEDURE WITHOUT CONSUMPTION OF WATER OR POLLUTION NOTABLE. |
MA28971A MA28114A1 (en) | 2003-10-03 | 2006-04-26 | DEVASMING METHOD WITHOUT WATER CONSUMPTION OR NOTABLE POLLUTION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0311582A FR2860532B1 (en) | 2003-10-03 | 2003-10-03 | DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2860532A1 true FR2860532A1 (en) | 2005-04-08 |
FR2860532B1 FR2860532B1 (en) | 2007-04-27 |
Family
ID=34307383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0311582A Expired - Lifetime FR2860532B1 (en) | 2003-10-03 | 2003-10-03 | DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION |
Country Status (4)
Country | Link |
---|---|
ES (1) | ES2319841B1 (en) |
FR (1) | FR2860532B1 (en) |
MA (1) | MA28114A1 (en) |
WO (1) | WO2005033422A2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008122377A1 (en) * | 2007-04-04 | 2008-10-16 | Michael Detering | Method for transporting sediments in dammed bodies of water |
EP2484838A1 (en) * | 2011-02-08 | 2012-08-08 | Egon Prexl | Excavator method |
RU2460843C1 (en) * | 2011-03-01 | 2012-09-10 | Александр Петрович Акимов | Method of cleaning silted ponds |
CN104594420A (en) * | 2014-12-07 | 2015-05-06 | 宁波保税区华萌生物科技有限公司 | Cleaning device for sludge in fishpond |
WO2016055119A1 (en) * | 2014-10-10 | 2016-04-14 | Egon Prexl | Erosion excavator method |
CN109457751A (en) * | 2018-11-13 | 2019-03-12 | 四川大学 | A kind of strand suction mud descaling machine |
CN112554264A (en) * | 2020-12-04 | 2021-03-26 | 王成双 | Pond rubbish cleaning equipment |
CN113062392A (en) * | 2021-04-13 | 2021-07-02 | 广东省源天工程有限公司 | Dredging device for hydraulic engineering |
CN113882451A (en) * | 2021-10-11 | 2022-01-04 | 江苏玖泰电力实业有限公司 | Dredger with flexible arm desilting |
US11578472B2 (en) | 2019-11-18 | 2023-02-14 | Harwich Haven Authority | Dredging method and apparatus |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101265913B (en) * | 2008-05-12 | 2010-04-07 | 杭州小尔机电设计有限公司 | Determining method for two-phase stream diving pump dredging system gross head to be needed |
CN101265914B (en) * | 2008-05-12 | 2010-06-02 | 杭州小尔机电设计有限公司 | Determining method for two-phase stream diving pump dredging system booster pump station optimal number |
CN105064435A (en) * | 2015-08-04 | 2015-11-18 | 深圳市水务(集团)有限公司阀门检测及维修分公司 | Vehicle-mounted mud and sand extraction and separation system |
CN106087855B (en) * | 2016-06-16 | 2018-08-03 | 上海交通大学 | A kind of fluidisation rush flushing device based on silt rheology |
CN105951909B (en) * | 2016-06-21 | 2018-04-06 | 中交天航港湾建设工程有限公司 | Desilting utensil and its construction method below a kind of harbour |
CN106193154B (en) * | 2016-07-28 | 2018-06-29 | 王兴奎 | A kind of moving type suction sand device |
CN108130929A (en) * | 2017-11-23 | 2018-06-08 | 深圳市晟祥知识产权有限公司 | A kind of municipal administration river cleaning device |
CN110396985A (en) * | 2019-07-29 | 2019-11-01 | 德州恒宇水利水电工程有限公司 | A kind of method of quick machine silt dyke strengthening |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1163042A (en) * | 1966-10-19 | 1969-09-04 | Albert George Bodine Jr | Dredging Process and Apparatus. |
DE2755125A1 (en) * | 1977-12-10 | 1979-06-13 | Cassella Ag | METHODS FOR REMOVING SLUDGE FROM AQUATIC AQUATIC ENVIRONMENT |
US4957622A (en) * | 1988-07-18 | 1990-09-18 | Uddo-Mims International, Inc. | Apparatus for removing sediment from ponds |
JPH06312103A (en) * | 1992-12-11 | 1994-11-08 | Noda Kogyo Kk | Mixing device of powder flocculant with suspended water |
DE4315764A1 (en) * | 1993-05-07 | 1994-11-10 | Gemeinnuetzige Ges Fuer Bescha | Process and apparatus for desludging flat bodies of water |
FR2724376A1 (en) * | 1994-09-09 | 1996-03-15 | Bordes Sue Dominique | Treatment of sediments in water, e.g. in rivers, lagoons etc. |
EP0904858A2 (en) * | 1997-09-19 | 1999-03-31 | Labromare S.R.L. | Method and relative system for the controlled reclamation of polluted basin bottoms |
JP2002316195A (en) * | 2001-04-24 | 2002-10-29 | Public Works Research Center | Method and apparatus for adjusting agitation in scour pipe |
WO2003010388A1 (en) * | 2001-07-27 | 2003-02-06 | Antti Happonen | Method and apparatus for cleaning a water area |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1918332A1 (en) * | 1969-04-10 | 1970-10-15 | Konink Mij Tot Het Uitvoeren V | Thickening sludge using polyelectrolytes or cellulose |
DE2256627A1 (en) * | 1972-11-17 | 1974-05-22 | Held & Francke Bau Ag | METHOD FOR MIXING SLUDGE MEDIA WITH WATER AND TRANSPORTING SUCH MIXTURES AND DEVICE FOR CARRYING OUT SUCH METHODS |
US3990252A (en) * | 1975-03-19 | 1976-11-09 | Dresser Industries, Inc. | Earthworks consolidation system |
DE3724251A1 (en) * | 1987-07-22 | 1989-02-02 | Orenstein & Koppel Ag | METHOD AND DEVICE FOR EXCAVATING SLAVE FROM HARBOR, WATERWAYS OR THE LIKE |
US5355594A (en) * | 1992-12-21 | 1994-10-18 | Daekyoo Hwang | Evaporative sludge stabilization |
-
2003
- 2003-10-03 FR FR0311582A patent/FR2860532B1/en not_active Expired - Lifetime
-
2004
- 2004-09-28 WO PCT/FR2004/002456 patent/WO2005033422A2/en not_active Application Discontinuation
- 2004-09-28 ES ES200650026A patent/ES2319841B1/en not_active Withdrawn - After Issue
-
2006
- 2006-04-26 MA MA28971A patent/MA28114A1/en unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1163042A (en) * | 1966-10-19 | 1969-09-04 | Albert George Bodine Jr | Dredging Process and Apparatus. |
DE2755125A1 (en) * | 1977-12-10 | 1979-06-13 | Cassella Ag | METHODS FOR REMOVING SLUDGE FROM AQUATIC AQUATIC ENVIRONMENT |
US4957622A (en) * | 1988-07-18 | 1990-09-18 | Uddo-Mims International, Inc. | Apparatus for removing sediment from ponds |
JPH06312103A (en) * | 1992-12-11 | 1994-11-08 | Noda Kogyo Kk | Mixing device of powder flocculant with suspended water |
DE4315764A1 (en) * | 1993-05-07 | 1994-11-10 | Gemeinnuetzige Ges Fuer Bescha | Process and apparatus for desludging flat bodies of water |
FR2724376A1 (en) * | 1994-09-09 | 1996-03-15 | Bordes Sue Dominique | Treatment of sediments in water, e.g. in rivers, lagoons etc. |
EP0904858A2 (en) * | 1997-09-19 | 1999-03-31 | Labromare S.R.L. | Method and relative system for the controlled reclamation of polluted basin bottoms |
JP2002316195A (en) * | 2001-04-24 | 2002-10-29 | Public Works Research Center | Method and apparatus for adjusting agitation in scour pipe |
WO2003010388A1 (en) * | 2001-07-27 | 2003-02-06 | Antti Happonen | Method and apparatus for cleaning a water area |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 02 31 March 1995 (1995-03-31) * |
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 02 5 February 2003 (2003-02-05) * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008122377A1 (en) * | 2007-04-04 | 2008-10-16 | Michael Detering | Method for transporting sediments in dammed bodies of water |
US8221031B2 (en) | 2007-04-04 | 2012-07-17 | Michael Detering | Method for transporting sediments in dammed bodies of water |
EP2484838A1 (en) * | 2011-02-08 | 2012-08-08 | Egon Prexl | Excavator method |
WO2012107180A1 (en) * | 2011-02-08 | 2012-08-16 | Egon Prexl | Tix dredging method |
RU2460843C1 (en) * | 2011-03-01 | 2012-09-10 | Александр Петрович Акимов | Method of cleaning silted ponds |
WO2016055119A1 (en) * | 2014-10-10 | 2016-04-14 | Egon Prexl | Erosion excavator method |
CN104594420A (en) * | 2014-12-07 | 2015-05-06 | 宁波保税区华萌生物科技有限公司 | Cleaning device for sludge in fishpond |
CN109457751A (en) * | 2018-11-13 | 2019-03-12 | 四川大学 | A kind of strand suction mud descaling machine |
US11578472B2 (en) | 2019-11-18 | 2023-02-14 | Harwich Haven Authority | Dredging method and apparatus |
CN112554264A (en) * | 2020-12-04 | 2021-03-26 | 王成双 | Pond rubbish cleaning equipment |
CN112554264B (en) * | 2020-12-04 | 2022-11-22 | 四川发展环境科学技术研究院有限公司 | Pond rubbish cleaning equipment |
CN113062392A (en) * | 2021-04-13 | 2021-07-02 | 广东省源天工程有限公司 | Dredging device for hydraulic engineering |
CN113882451A (en) * | 2021-10-11 | 2022-01-04 | 江苏玖泰电力实业有限公司 | Dredger with flexible arm desilting |
CN113882451B (en) * | 2021-10-11 | 2022-07-12 | 江苏玖泰电力实业有限公司 | Dredger with flexible arm desilting |
Also Published As
Publication number | Publication date |
---|---|
MA28114A1 (en) | 2006-08-01 |
FR2860532B1 (en) | 2007-04-27 |
ES2319841A1 (en) | 2009-05-12 |
WO2005033422A3 (en) | 2005-06-02 |
ES2319841B1 (en) | 2010-02-04 |
WO2005033422A2 (en) | 2005-04-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2860532A1 (en) | DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION | |
EP0069136B1 (en) | Installation for spreading clay muds for rehabilitating soils | |
US5643443A (en) | Water purification system | |
KR20150071697A (en) | Eco-friendly water purifier that combines clean water with pure water to produce electricity, while eliminating particulate pollutants, various wastes, and fluid pollutants contained in river water from point sources and non-polluting sources Systems and storm water depots apply here | |
JP2013017989A (en) | Method and system for dredging sludge | |
US6848860B2 (en) | Maintenance apparatuses for permeability improvement in fluid containment basins | |
JP2010501752A (en) | Underwater concentration cell, sediment separator and sediment concentration method | |
JP5706255B2 (en) | Method for separating mixed materials in dredged soil and sorting device for dredged material used for dredged material | |
JP6871552B2 (en) | Closed purification method for rivers, lakes, ponds, and oceans | |
EP0088697A1 (en) | Process for setting sludge in view of its natural drying | |
JP2022023419A (en) | Plastic waste removal device | |
US5042178A (en) | Apparatus and process for solid dredge material disposal | |
KR20150088213A (en) | Environmentally friendly power generation system that combines fine particulate pollutants, various waste and fluid contaminants contained in river water and completely eliminates molecules and purifies them with clean water to produce electricity as a natural-friendly water quality purifier, and a rainwater pool | |
JPH10118698A (en) | Dam sludge and sand discharging facility | |
KR20030005769A (en) | System for segregating the dredged sediments, and a method therefor | |
JP3999788B2 (en) | Long-distance transportation system for dredged soil and its transportation method | |
US20050123352A1 (en) | Maintenance apparatuses for permeability improvement in fluid containment basins | |
JPH0515898A (en) | Method and device for treating mud or the like | |
JP2005042392A (en) | Dredging plant and dredging method for dam | |
JP3283634B2 (en) | Mud water treatment method | |
EP0006776A1 (en) | Process for the treatment of polluting material formed of oil slicks, sludge residues or waste waters | |
KR101320302B1 (en) | Method for processing muddy water in the huge tunnel | |
BE1003967A6 (en) | Dredging, dredging sludge collection, unloading and treatment method andinstallation for the application of said method | |
FR2899891A1 (en) | Treatment of suspended material effluent having excess hydraulic content, comprises coagulating the effluents in a coagulation zone, flocculating the effluents in a flocculation zone, and decanting the effluents in a decantation zone | |
KR101129852B1 (en) | A filter bed making method of bankfiltered water thereof treatment apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 13 |
|
PLFP | Fee payment |
Year of fee payment: 14 |
|
PLFP | Fee payment |
Year of fee payment: 15 |
|
TP | Transmission of property |
Owner name: S.P.C.M. SA, FR Effective date: 20171208 |
|
PLFP | Fee payment |
Year of fee payment: 16 |
|
PLFP | Fee payment |
Year of fee payment: 17 |
|
PLFP | Fee payment |
Year of fee payment: 18 |
|
PLFP | Fee payment |
Year of fee payment: 19 |
|
PLFP | Fee payment |
Year of fee payment: 20 |