Patent ID: 11931703
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B

Claim 5:
6. A method for wastewater treatment, the method comprising the steps of:
providing an aeration equipment (10) for wastewater treatment, the aeration equipment comprises:
a hollow shaft (12) that has a proximal end and a distal end,
a shaft coupling (16) coupled to the proximal end of the hollow shaft (12), the shaft coupling (16) is of a hollow cylindrical shape, one or more apertures (17) in a wall of the shaft coupling (16), the one or more apertures (17) configured to receive air from outside, wherein the air flows into the hollow shaft (12),
an air control valve (18) encased within the shaft coupling (16), the air control valve (18) forms a barrier between the one or more apertures (17) and an inner volume of the hollow shaft (12), wherein the air control valve (18) configured to open under vacuum resulting in flow of air through the one or more apertures (17) and into the hollow shaft (12),
a hub (20) interchangeably coupled to a distal end of the hollow shaft (12), the hub (20) comprises a hollow tube 34 coupled to the distal end of the hollow shaft (12), the hollow tube (34) has one or more output apertures (30), wherein the air from the hollow shaft (12) flows out through the one or more output apertures (30), and
a plurality of impellers (22) mounted to the hollow tube (34) of the hub (20), the plurality of impellers (22) are configured to generate the vacuum in the hollow shaft (12) upon being rotated in water.