摘要:
The present disclosure relates to a microbubble releasing arrangement (20) for releasing microbubbles of oxygen in a body of water in which the microbubble releasing arrangement is submerged. The microbubble releasing arrangement comprises a plurality of microbubble diffusers (22), each diffuser formed of a flexible tubing having perforations for releasing microbubbles therefrom. The arrangement also comprises a rigid manifold (1) connected to each of the diffusers (22) and arranged for distributing oxygen gas thereto. The arrangement also comprises a gas tube (21) for connecting the manifold to an oxygen source for providing the oxygen gas to the manifold. The arrangement also comprises a pressure sensor (7) fastened to the manifold and arranged for sensing an ambient pressure outside of the manifold.
摘要:
The present invention relates an aeration device including: a hollow casing having a motor mounted therein; a mixing unit formed on the front side of the casing and having a discharge hole formed in a radial direction and an intake hole formed on the front thereof; an impeller located inside the mixing unit and coupled to a driving shaft of the motor, the driving shaft being extended to the mixing unit, in such a manner as to be rotated unitarily with the driving shaft, to generate a flow in an outward radial direction upon the rotation; an air inflow unit having one side end portion located in front of the impeller and serving as an air inflow pipe for introducing air to the mixing unit; and an auxiliary intake unit located on the front side of the impeller in such a manner as to be rotated unitarily with the driving shaft of the motor and adapted to be inserted into the air inflow unit in such a manner as to allow s fluid in the air inflow unit to flow backward upon the rotation. Accordingly, the aeration device can improve the air intake force so as to suck the water filled in the inflow pipe introducing air at the beginning of starting, thus performing the aeration efficiently even in deep water.
摘要:
According to the present invention there is provided a treatment assembly for a basin containing a fluid medium. The assembly comprises an aeration device configured for infusing air to the fluid medium. The assembly further comprises a carrier arrangement, mounted onto the aeration device and configured for supporting bio-media providing a substrate for the growth thereon of biomass within the fluid medium. The biomass is configured for consuming at least a part of the air infused by the aeration device.
摘要:
"IMPROVEMENT ON FACILITY FOR REMOVAL OF MATERIALS AND / OR POLLUTING SUBSTANCES CONTAINED IN WATERCOURSES", applied to facility comprising : the implementation of a sandbox arranged at the bottom and in a stretch of the watercourse, followed by a floating garbage fence arranged substantially transversely to the watercourse; whereas downstream and at a certain distance from this garbage fence is provided a suspended and transverse metallic structure to the watercourse, in which curtains for selective injection and automatically set in motion are mounted, arranged spaced and interspersed by homogenization diffusers, these curtains are responsible for the injection of coagulants; by the injection of polymers into the watercourse to be treated, and ahead there is a phase for release of microbubbles of air, causing a flotation of these aggregate particles; allowing that from this flotation stretch arises, along the watercourse, a superficial agglomeration of the floated material, and the conduction by flexible and longitudinal barriers formed by synthetic membranes of this floated material to a transverse alignment of dredging modules, that extend through the entire watercourse's width promoting the concentration of floated material and its removal. This improvement consisting of all equipment (3, 4,7) originally installed transversally the watercourse, which are subject to partial or total removal from this transverse condition, allowing the clearance of part and/or entire bed of the watercourse.
摘要:
The invention concerns an arrangement (1) for the processing and addition of a gas (2), or a mixture of gases, to a fluid (3). The arrangement comprises at least one vessel (4) that is intended to be at least partially submerged in the fluid (3), the vessel (4) of which comprises at least one inner compartment (5) provided with at least one inlet (10) for the input flow of fluid into the vessel (4) and at least one outlet (11) for the output flow of fluid from the vessel. The arrangement (1) comprises at least one flow-creation arrangement (14) through which an output flow of fluid (3) from the vessel (4) takes place during the formation of at least one vortex (27) in the inner chamber (5). What is unique for the present arrangement is that the inlet (10) is constituted by at least one input flow channel that is located in the lower part of the vessel (4) and that the input flow channel is directed essentially in the tangential direction of the vessel (4) obliquely upwards within the interval 91 to 125 degrees relative to the axial direction of the vessel. What is furthermore unique is that the flow-creation arrangement (14) is constituted by an impeller (16) and that the impeller (16) is located at the outer surface of the vessel at a distance from the bottom of the vessel. The present invention comprises also a method for the use of the arrangement.