The present invention discloses a system for introducing a gas into a contained media such as a pond or lake. Water is removed from the media, gas introduced, and then the water removed to the contained media.

An aeration diffuser (12) for a pressurized liquid treatment module includes a base having a gas passageway (32) and a liquid passageway (50) fluidically separated from the gas passageway. Liquid is injectable into the liquid passageway of the base of the diffuser. Liquid flows through the base of the diffuser and into the module to be filtered by filtration membrane(s) within the module. Gas is injectable into the gas passageway of the base of the diffuser. Gas flowes through the base of the diffuser separately from the liquid to aerate the filtration membrane(s) within the module. Further a module including one or more diffusers and a method of filtration is disclosed.

There is a standpipe arrangement for holding and for supplying gas to aerators in a clarifying basin. The standpipe arrangement comprises a pipe conduit with holding means for aerators, with gas openings to the aerators and with means of fastening the pipe conduit on the base of the clarifying basin. The pipe conduit comprises several support pipes connected to each other, at the connection points of which fastening means are arranged. By way of the fastening means the support pipes are fixed both at a distance above the base of the clarifying basin as well as laterally and against rotation about the pipe axis, but can be moved along the pipe axis.

The invention relates to a ventilation element for the introduction of a gas into a liquid, having at least one gas port, having at least one carrier plate and having at least one elastically deformable diaphragm which is connected to the at least one gas port and/or to the at least one carrier plate. A space that can be formed between the at least one diaphragm and the at least one carrier plate is connected in terms of flow to the gas port. The at least one carrier plate has a multiplicity of gas outlet openings, and at least one diaphragm is composed at least in sections of a material with a lower density than water, or is equipped with at least one float body which has a lower density than water.

A sparger assembly for a bioprocessing system includes a first layer having a plurality of pores of a first size, and a second layer disposed above the first layer and having a plurality of holes of a second size, the second size being greater than the first size. The pores of the first layer and the holes of the second layer allow for the passage of a sparge gas through the first layer and the second layer.

A channel manifold is presented, and which includes a dimensionally stable channel plate having top, bottom and side surfaces and a channel formed in a surface thereof, wherein the channel splits into a plurality of subsidiary channels along the surface of the channel plate and has an entrance port and a plurality of exit ports such that a fluid fed into the entrance port is expelled through the plurality of exit ports.

A sparger assembly (700) for a bioprocessing system includes a base plate (710) and at least one aeration manifold (712, 714) removably connected to tire base plate. Each aeration manifold includes at least one inlet for receiving a gas and a plurality of gas outlet openings for delivering tire gas to a fluid within the bioprocessing system. An impeller assembly (740) fora bioprocessing system includes a hub and at least one blade (742) operatively connected to the hub. The at least one blade includes a first portion connected to the hub and extending generally vertically, and a second portion extending at an upward angle from tire first portion.

An apparatus for producing nano-bubbles in a moving liquid carrier includes a conduit through which a liquid carrier can flow, a gas diffuser disposed on an inner surface of the conduit, and a funnel comprising: (i) a first open end having a first cross-sectional area that receives a moving liquid carrier; (ii) a second open end opposite the first open end defining a second cross-sectional area smaller than the first cross-sectional area and fluidly coupled to the opening of the conduit; and (iii) a wall extending from the first open end to the second open end. The funnel is configured to create turbulent flow above the turbulent threshold in the absence of external energy that allows the liquid carrier to shear gas from the outer surface of the diffuser, thereby forming nano-bubbles in the liquid carrier.

The disclosure provides a gas-liquid dissolving apparatus, comprising: a sealed tank, a gas jet tube and a plurality of membrane plates; the sealed tank being provided with a liquid supply joint at top, and a gas inlet joint and an output joint at bottom; the gas jet tube being located inside the sealed tank and connected to the gas inlet joint; the gas jet tube having a plurality of gas jet holes distributed on tube wall; the plurality of membrane plates being stacked around the periphery of the gas jet tube and fixed; each membrane plate being ring-shaped, and being structured with an inner ring wall, a mixing chamber and an outer ring wall sequentially from the center; the mixing chamber having an opening facing downward, and the inner ring wall being thicker than the outer ring wall, with a gap existing between the two adjacent stacked outer ring walls.

The invention relates to an aeration system for seawater oxidation in flue gas purification devices, with at least one tubular diffuser (TD), covered by at least two perforated membranes (20), which are positioned one after the other and at a distance to each other in a direction of the central longitudinal axis (A) of the diffuser (TD) as well as at least one support member (SP), which encircles a membrane-free section (FS) of the tubular diffuser at least partially, and at least one sliding means (40), arranged between the support member (SP) and the membrane-free section (FS) of the tubular diffuser (TD).