Fixed Slow Speed Surface aerator

Listing ID #3166156

The surface aerator is a vertical shaft aerator which provides a mechanical means of oxygen transfer to sewage or industrial effluent. Manual or any required degree of automatic control can be provided including adjustment of aeration intensity by dis-solved oxygen monitoring.
It can be mounted on conventional bridges, on tripods with light access bridges or floating. They can be mounted on configuration thereby offering a broad range of treatment capabilities from small communities to major installation.
It provide sufficient oxygen input and maximum mixing characteristics with a minimum expenditure of power. The proven operating characteristics mean that the installations are simple, inexpensive and efficient.
The process starts with the oxygen generation of the fluid which promotes the cultivation and reproduction of micro-organisms which carry out the treatment process by breaking down organic matter.
Oxygenation also re-establishes dis-solved oxygen levels in thte final effluent in order to sustain plant and animal life when discharged into rivers and lakes.
Vertical shaft aerators achieve oxygen transfer by developing a large interface between air and liquid so that oxygen can diffuse from the air into the liquid. In achieving this it is necessary to prevent local build up of oxygen concentration by promoting good mixing within the liquid.
Excellent mixing qualities
in many applications of slow speed surface aerators the function of the aerator is not just limited to introducing oxygen into the water. Also, a part of the propulsion and mixing has to be provided by the surface aerator. That is one of the reasons why the characteristic conical shape is noticeable in the design of the blades. This is the source of the pump function which is necessary for creating good mixing conditions inside the basin. For oxidation ditches this results in excellent propulsion.