摘要:
The present invention is a floatation process and associated apparatus for removing heavy metal waste from various effluent water streams. The process and apparatus generally introduces a population of fine diameter air bubbles and one or more flocculating chemicals into an effluent stream to produce buoyant floc structures that include the heavy metals and that can be removed from the effluent stream. The present invention provides a reliable, cost-effective means of removing heavy metals from effluent water streams.
摘要:
A protein skimmer for removal of protein contaminates from protein contaminated water. An injector is used for spraying protein contaminated water into a water bubble chamber. The spraying motion causes bubble generation in the water bubble chamber. Contaminates in the water attach themselves to the bubbles and rise to the surface of the water as foam. A hollow foam riser is attached to the top of the water bubble chamber and provides an exit pathway for the contaminated foam. As foam is generated, it rises through the foam riser and carries with it contaminates. A foam collection cup is attached to the top of the foam riser and collects the contaminated foam. Consequently, the water left behind in the mixing chamber is substantially more pure. The substantially more pure water exits the mixing chamber through a purified water exit aperture.
摘要:
A dissolved gas flotation apparatus and process for removing oils and other contaminants from produced water generated in the production of crude petroleum and natural gas. The invention is particularly designed for offshore applications, where space is limited and natural gas is readily available. The invention includes a vessel for receiving and maintaining a liquid level therein and a circulating pump for introducing tiny flotation gas bubbles into the vessel. Natural gas is used as a blanket gas for the vessel and as a source of gas fed into the pump, wherein the gas is mixed with the pumped liquid. The liquid/gas mixture is transferred into the vessel, wherein the gas releases from the liquid, thereby forming tiny, finely dispersed gas bubbles. The tiny gas bubbles rise vertically through the vessel and attach themselves to the oil and other contaminants suspended in the liquid and buoyantly transport the oil and other contaminants to the top of the vessel, where the gas is released and either recycled back to the recirculating pump or transferred out of the vessel for further processing, and the oil and other contaminants are collected in a reservoir for recovery. The clarified water is removed from the vessel through a liquid outlet line located near the bottom of the vessel.
摘要:
A foam fractionation protein skimmer for removing organic waste material from organic loaded water, the protein skimmer including an upright reaction chamber with an uppermost throat in flow communication with a foam collection cup for collecting a protein loaded foam containing the organic waste material. The chamber has a vertically directed partition with an uppermost portion terminating beneath the throat for partitioning the chamber into an upwardly converging inlet compartment and a downwardly diverging outlet compartment respectively having an inlet port and an outlet port downwardly remote from the throat, and a region of flow inversion for inverting an ingressing air/protein loaded water mixture upwardly flowing toward the throat to an egressing water flow downwardly flowing to the outlet port with an upward counterflow of protein bearing air bubbles The upward counterflow of air bubbles combines with foam fractionation occurring at the region of flow inversion to produce the protein loaded foam at the throat whereby the egressing water flow is less protein loaded than the ingressing air/protein loaded water mixture.
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 defining a treatment environment and including a wall defining a fluid passage and having an inlet apparatus. The inlet apparatus 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 includes a sparging apparatus disposed downstream of the inlet apparatus for introducing a gas into the solution stream, and an outlet for discharging the sparged solution stream. The system further includes a flotation tank disposed proximate the containment vessel outlet for receiving the discharged solution stream. The flotation tank is adapted 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 further includes a tank outlet for exiting processed effluent from the tank.
摘要:
A process of environmental including a micro application of floating/coagulating material in the watercourse, followed by micro flocculation to aggregate particles in suspension downstream, defining flakes of greater dimensions; submit the aggregated particles, dissolution and air injection, causing a micro floatation of aggregated particles; allowing a micro aggregation of the floating material downstream; next, the flow water is thrown into a streamlet/secondary effluent, submitted to air injection or aeration; a medium application of flocculating/coagulation material in this secondary watercourse to aggregate particles downstream, evidencing flakes of greater dimensions; submit aggregated particles downstream to dissolution and injection of air, submitting the urban watercourse to air injection or aeration intercalating, causing a macro floatation of aggregated particles and a macro aggregation of the floating material downstream; removing such material along an urban section before the effluent reaches the water dam for urban supply.
摘要:
A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a traveling bridge-type grit removal device supporting a submerged grit pump. The system further includes an elongate grease channel arranged to receive degritted water from the grit channel, and having a plurality of grease skimmer pipes extending across the channel above the water level. The grease skimmer pipes are spaced apart along the length of the grease channel, and each grease skimmer pipe includes a plurality of fluid discharge orifices or nozzles spaced along the length of the pipe and oriented to blow fluid obliquely onto the water surface in the direction of a discharge end of the grease channel so as to move grease floating on the surface to the discharge end. Grease that collects at the discharge end of the grease channel is removed by a conveyor that extends into the water and lifts grease upward and out of the channel.
摘要:
A method for treating livestock wastewater includes directing screened wastewater to a hydrocyclone/separation tank system. The hydrocyclone directs the wastewater stream in a generally helical fashion to create bubble-particle aggregates. Activating chemicals can be added to the wastewater upstream of the hydrocyclone or within the hydrocyclone itself. The wastewater is channeled from an outlet of the hydrocyclone through a diffuser to a separation tank, where the bubble-particle aggregates are separated as they rise and accumulate on a free liquid surface of the tank. The treated wastewater settles below the bubble-particle aggregate accumulation and is transferred to a reservoir for later use as irrigation water or barn wash water. Salts may also be removed from the wastewater by filtering the wastewater through salt-removing filters before the wastewater is transferred to the reservoir.
摘要:
An ozone oxidizing apparatus in which, after fine air bubbles are distributed in a fluid (a waste water) delivered together with air to increase a dissolvable oxygen concentration, when ozone evenly contacts a contaminant of the fluid, oxidation is maximized by virtue of the instantaneous catalytic action of the oxygen air bubbles, thereby effectively removing the contaminant contained in the fluid.
摘要:
A system for facilitating the separation of materials dissolved from a fluid. The system includes an apparatus for separating proteins and other organics from fluid is provided. The apparatus includes a column having an interior chamber extending between a first end and a second end of the column. The apparatus also includes an inlet tangentially positioned relative to the interior chamber, so as to induce a cyclonic flow as fluid enters into the interior chamber. The apparatus further includes an injection port through which bubbles may be introduced into the fluid flow within the interior chamber. As the bubbles ascend materials dissolved in the fluid adhere to the bubbles an get carried upward towards the surface level of the fluid. Foam generated by the coalescing bubbles may be collected in a trough provided about the first end of the column and may be directed thereinto by a deflector.