Patent ID: 9731230
Date: 2017-08-15
CPC Classifications: B01D,B01F,C02F

Claim:
1. An aeration diffuser for a pressurized liquid treatment module having at least one tubular filtration membrane fixed in the module by a potting section, the diffuser comprising: a base having a gas passageway, a liquid passageway fluidically separated from the gas passageway, a central hub, and at least two channels extending radially outwardly from the hub, each channel being in fluid communication with the gas passageway and fluidically separated from the liquid passageway, each channel having at least one opening to aerate the at least one filtration membrane within the module, and an adapter including a gas passageway having a gas inlet and a liquid passageway having a liquid inlet and being fluidically separated from the gas passageway, the adapter being selectively fixed to the hub, such that the gas passageway of the adapter is in fluid communication with the gas passageway of the base and the liquid passageway of the adapter is in fluid communication with the liquid passageway of the base, wherein liquid is injectable into the liquid passageway of the base, the liquid flowing axially through the hub and into the module on one side of the at least one filtration membrane to be filtered by the at least one filtration membrane within the module, and wherein gas is injectable into the gas passageway of the base, the gas flowing through the hub and out of the diffuser through the openings of the at least two channels to aerate the one side of the at least one filtration membrane within the module.