Abstract:
The invention relates to a separation device for a mixture containing a liquid solution and solid microparticles, of the economic operation, comprising: a) an upper part (2) for orienting the mixture to be separated along the descending vortical profile, and b) a lower conical part (1), which provides, by its convergence, the separation of microparticles with regard to the liquid solution. According to the invention, the upper part comprises a pipe (2) coiled into a plurality of spirals, on the upper end of which a mixture to be separated is received, and the lower end of which pours this mixture tangentially onto internal wall (10) of the lower conical part, pipe spirals providing this mixture with descending vortical profile and a sufficient centrifugal force, prior to its introduction into the lower conical part (1). The invention finds use in the field of liquid solution/solid particles separation.
Abstract:
A feed system is used in a sedimentation vessel. The feed system includes an inlet for receiving a quantity of feed slurry and an outlet for delivering the feed slurry to a separation zone within the sedimentation vessel. The feed slurry includes a mixture of solids and liquids that are to be separated in a separation zone within the sedimentation vessel. An airlift pump is used to cycle at least a portion of either the separated solids or the separated liquids from the separation zone and return it to the feed system. This returned portion mixes with the feed slurry and may operate to dilute the feed slurry to a concentration for optimal separation. Additionally, feed conditioning chemicals may be mixed into the feed slurry prior to or after the mixing of the feed slurry with the returned portion of the separated products.
Abstract:
Vorrichtung zum Abziehen und Eindicken und Abräumen von Schwimmstoffen von der Oberfläche eines Abwassers in einem Klärbecken 1 mit einem Eindickkanal 3, Mitteln zum schonenden Zuführen von Schwimmstoffen 6 aus dem Klärbecken 1 in den Eindickkanal 3, Mitteln zum Entnehmen von Schwimmschlamm 12 an oder vor einem Ende des Eindickkanals 3 und - Mitteln zum Erzeugen einer in Längsrichtung des Eindickkanals auf die Mittel zum Entnehmen zu gerichteten Fluidströmung 11 im Eindickkanal.
Abstract:
A method for purifying fluids and a sedimentation tank, the sedimentation tank includes: a perforated plate spaced from an upper and of the sedimentation tank dividing the sedimentation tank into an upper chamber and a lower chamber; an inlet adapted to inlet fluid into the tank; a first outlet, positioned above the perforated plate for outletting a clarified fraction of the fluid; a second outlet positioned at a bottom of the tank, for outletting a concentrated sludge fraction of the fluid; a pump; and a washing mechanism, positioned at least partially above the perforated plate; wherein the pump is adapted to provide a washing fluid to the washing mechanism when a level of fluid in the sedimentation tank is below a predefined level; and wherein the washing mechanism washes an upper surface of the perforated plate by the washing fluid.
Abstract:
Installation comprenant, sur un axe vertical, une cuve d'homogénéisation (1) suivie d'une cuve de clarification (2) et d'un bac de floculation (3). Un conduit (6) relie la cuve d'homogénéisation (1) à la partie basse du bac de floculation (3). L'alimentation de la cuve d'homogénéisation (1) se fait par une arrivée tangentielle (91) de l'efïluent et l'entrée (611) et la sortie (612) du tube supérieur (61) comportent un guide hélicoïdal (613, 614) de mise en rotation de l'efïluent. Le tube inférieur (62) de diamètre supérieur à celui du tube supérieur (61) se termine par une sortie en forme de cône renversé (622) de section réduite (621). La partie inférieure (31) du bac de floculation (3) est tronco-nique, d'angle au sommet, inférieur à celui de sa partie supérieure (32), cette partie inférieure (31) étant parallèle au cône de la sortie du tube inférieur (62), et des cônes anti-refoulement (7, 8) entourent le conduit (6) dans la cuve de clarification (2).
Abstract:
The invention relates to a method for treatment of water, permitting the physico-chemical treatment of water, including a ballasted flocculation stage using a granular ballast material with a density greater than water, followed by, a stage of gravity separation of the treated water and the flocculent mass, a stage of separation of the granular material, recycled for the flocculation stage and the muds. Said muds are sent to a stage for treatment of the muds, characterised in comprising a stage in which the functional mode passes from a mode using ballasted flocculation and gravity separation using coagulation and flocculation reagents to a mode functioning by simple gravity separation, without using coagulation and flocculation reagents. The passage from one mode to another is determined using at least one item of information on the water obtained at any stage of the treatment thereof or before said treatment.
Abstract:
It refers to a process and apparatus for capture and withdrawal of petroleum and its derived, and other oil types or substances floating in water, in that a layer of superficial water is displaced by the fluid dynamic action, aiming to bring to the inside of the apparatus, the whole type of pollutant floating material. When entering in the apparatus the layer of water is separated in two different flows, one of them, of smaller tickness and containing oils and impurities, enters in a suction gutter and is pumped to an accumulation tank; the other flow, just below the superficial layer, without impurities and floating substances, is expelled out of the apparatus by the discharge of a high flow rate pump, which suction is close to the bottom of the apparatus and the discharge in the back part of the same, to join to the original mass of water.
Abstract:
A separator for separating particles, especially amalgam particles, from effluent liquid obtained from the suction apparatus of a dental office, preferably driven by a common vacuum pump, includes a sedimentary deposit tank for sedimentation of solid particles in the effluent. A surge tank is provided for accommodating effluent overfill and providing its effluent output to the sedimentary deposit tank. A bypass conduit is connected in parallel with the separator and to a vacuum check valve in the vicinity of the separator inlet port for passing air into the separator when the suction apparatus is closed to ambient air, so that whenever the vacuum pump is operating, air is sucked into the separator either through the suction apparatus thence into the separator inlet port or via the vacuum check valve. The surge tank preferably has a liquid level sensor and associated warning device. An auxiliary filtration device may be connected downstream of the sedimentary deposit tank, and both of these units are preferably removably replaceable as modular units. Provision is made for optional auxiliary equipment to improve filtration and to accommodate a positive air pressure source. A full tank drying facility is optionally provided.