摘要:
A tank module (1) is a rigid and self-supporting unit capable of being transferable and hoistable as an integral entity. The tank module (1) comprises a self-supporting framework (2) having an inner space (3). The tank module (1) also comprises a flotation tank (4) which is disposed in the inner space (3) of the self-supporting framework (2). The flotation tank (4) has a tapered upper part (5). The tank module (1) also comprises an overflow receptacle (6) which is disposed in the inner space (3) of the self-supporting framework (2) in the area of the tapered upper part (5) of the flotation tank (4). The overflow receptacle (6) collects an overflow from the flotation tank, when in use.
摘要:
A method and apparatus for removing solids separated from wastewater, or algae from algal solution, using an improved dissolved air flotation system that incorporates a slowly rotating cylindrical sieve at the end of an upward sloping beach to drain free water from the float, which has been pushed up the beach and onto the rotating sieve, and a doctor blade that removes the thickened float from the rotating sieve is disclosed.
摘要:
Verfahren zur Gewinnung von metallhaltigen Wertstoffen aus einer metallhaltige Wertstoffe enthaltenden Suspension, wobei eine entsprechende, nach Durchlaufen wenigstens einer Pumpenvorrichtung (2) druckbeladene, mit einem Gas versetzte Suspension über wenigstens eine Zuleitung (3) wenigstens einer Düsenvorrichtung (5) wenigstens einer Flotationszelle (4) zugeführt wird, wobei in der wenigstens einen Flotationszelle (4) die metallhaltigen Wertstoffe abgetrennt werden, wobei die Gasbeladung der die metallhaltigen Wertstoffe enthaltenden Suspension wenigstens teilweise nach Durchlaufen der Pumpenvorrichtung (2) vor Eintritt der Suspension in die Düsenvorrichtung (5) erfolgt.
摘要:
본 발명은 용존 공기 부상형 전처리장치를 개시한다. 상기 용존공기 부상형 전처리장치는, 해수, 하수, 또는 폐수의 원수에 포함된 부유물질, 탁질, 또는 조류(alga)의 이물질을 제거할 수 있게 하는 부상조를 포함하며,상기 부상조(20)에 구비되어, 상기 원수로부터 일차적으로 부유물질이 제거되어 얻어진 처리수가 통과할 수 있도록 일측면과 타측면이 각각 부분적으로 개방된 여과 구획부(filtering compartment part)(2); 및 상기 여과 구획부(2) 내에 가두어진 형태로 제공되며, 상기 여과 구획부(2) 내로 유입되는 처리수 중에 잔류하는 탁질 또는 부유성 고형물질(suspension solid)을 여과시킬 수 있도록 섬유사 또는 스폰지재를 포함하는 복수의 여과볼(3)을 포함하는 특징을 갖는다.
摘要:
A method and device for separating floated matter such as sludge located near the surface of a fluid body is contemplated that employs pneumatic force to separate the floated matter. The contemplated device employs pneumatic force for lifting and blowing the floated matter into an inlet channel. The device is configured to provide substantially uniform airflow across the inlet channel. The inlet channel of the device may also include an adjustable section which allows airflow velocity along the channel to be controlled in a periodic fashion.
摘要:
The invention provides systems and methods for producing biofuel from algae wherein the algae and fishes are co-cultured in a body of water. The methods further comprise inducing the algae to accumulate lipids by environmental stress, and concentrating the algae prior to extraction of the algal oil. The systems of the invention comprise at least one growth enclosure, means for concentrating algae, and means for subjecting algae to environmental stress.
摘要:
Eductor apparatus (100, 99) is provided for introducing gas into a liquid in a gas flotation cell, the apparatus comprising a clean liquid inlet port (101), the inlet port having an outlet end (104) through which the clean liquid is ejected in a first direction, a gas inlet chamber (187) adjacent to the outlet end of the inlet port for introducing gas to the liquid from a gas inlet port (102), the gas inlet chamber substantially surrounding the flow of liquid when the apparatus is in use, and a gas/liquid mixing and diffusing section (103) wherein gas is entrained within the liquid prior to being ejected from the eductor apparatus into the contaminated liquid, the gas/liquid mixing and diffusing section having a direction of fluid flow substantially transverse to the first direction such that the fluid exits from the gas/liquid mixing and diffusing section substantially radially outwardly relative to said first direction.
摘要:
A fluid conditioning system and method is disclosed for coupling to a first solution source comprising a suspension solution and particles suspended in the suspension solution. The fluid conditioning system includes a containment vessel (36) defining a treatment environment and including a wall defining a fluid passage and having an inlet apparatus (60). The inlet apparatus (60) is coupled to the solution source for receiving a solution stream and directing the solution stream through the passage helically along the cylindrical wall. The containment vessel (36) includes a sparging apparatus disposed downstream of the inlet apparatus for introducing a gas into the solution stream, and an outlet (46) for discharging the sparged solution stream. The system further includes a flotation tank (130) disposed proximate the containment vessel outlet (46) for receiving the discharged solution stream. The flotation tank (130) is adapated to carry a predetermined volume of a second solution to effect flotation of the particles to the surface of the second solution. The flotation tank (130) further includes a tank outlet for exiting processed effluent from the tank (130).
摘要:
A compact dissolved-air-flotation (DAF) clarifier (10, 10', 210) treats raw water with suspended solid contaminants first in a flocculator (I, 14, 214) at the center of an annular tank (16, 216) where microscopic air bubbles float flocked contaminants to form a floating sludge layer (12). The flocculator has a fixed, cylindrical sidewall (15, 215). A first clarification, calming and degassing occur here. The water then flows radially outwardly into the tank (16, 216) with a straight cylindrical outer wall (216) where further quiet clarification occurs. A third level of clarification occurs in a lower portion (III) of the tank, specifically, within a set of fixed, inclined lamellae (18, 118), where a final clarification occurs. The bottom wall (16c, 216c) of the tank has a set of apertures (54) which allow a gravity flow of clarified water through a layer of pressurized gas (44) to an underlying collection compartment (38). A set of rotating paddles (280) push the sludge layer up a ramp to an opening (282a) in an inclined discharge conduit (282). The paddles (280) extend generally from the region over the full surface area of the tank (216), to its outer wall (216d), which is preferably cylindrical. The ramp (281) twists about its radial axis, being shallower and longer at its outer edge and steeper and shorter at its inner edge. An offset drive (56) operating through a belt (64) rotates the paddles (280), a movable cylindrical wall (217) surrounding the lower portion of the fixed flocculator wall (215), and at least one scraper (229) secured at one end to the movable wall (217) and extending radially under the lamellae (218).
摘要:
The invention relates to a process for removing contaminants from waste paper comprising a) leading an inert gas through an aqueous pulp, which pulp comprises waste paper fibers and contaminants, to produce a foam comprising at least part of the contaminants, which foam forms a layer on top of the pulp, and b) removing foam. The invention further relates to a device suitable for carrying out said process.