Operational reliability is paramount
Landia’s aerators are running 24 hours a day all year, aerating waste water at both industrial and municipal waste water treatment plants and plants for the aeration and treatment of leachate.
For most of our customers, the high air injection and operational reliability of our products are of vital importance, because the mixers are used for controlling a sensitive biological process.
Landia has developed and marketed aerators and aeration systems since the mid-1970s, and today hundreds of our systems are in operation all over the world.
Two different aeration systems
The combined mixer/aerator is submerged in tanks or lagoons.
The combined mixer/aerator works this way:
The fast-revolving propeller creates a strong vacuum immediately behind itself, which leads to atmospheric air (or pure oxygen) being drawn down through a pipe.
The Venturi AirJet system consists of one or two venturi nozzles which are connected to the well known Landia chopper pump.
When the pump is running, the liquid is drawn into the pump’s knife system, where any lumps are chopped into pieces.
The liquid is then pressed out through the mixing nozzle under high pressure. This creates a strong vacuum inside the ejector which draws atmospheric air (or pure oxygen) down through a pipe.
The injected air is mixed with the liquid while the liquid in the tank/lagoon is being macerated and mixed.
Minimal energy consumption
An aerator will usually run for long periods of time, in some cases even continuously, that is 24 hours a day all year!
That's why we devote so many resources of our daily customer-oriented product development to optimisation of the relation between strength and energy consumption.
Optimising the position, the capacity of the motor and the size and design of the pump impeller enables us to minimise wear, energy consumption and noise level, which has a favourable effect on the plant's operating economics and its impact on the environment.
Through a close dialogue with the customer from the beginning of the design phase, Landia’s distributors and the employees of our sales companies ensure that we always deliver solutions which meet the exact needs of our customers.
We assign one of our internal project managers, all of whom have a higher technical education and are, for example, consulting or chief engineers, to all major projects.
Delivery and commissioning
On conclusion of the project, the project manager ensures that the customer’s employees receive the training necessary for taking on the responsibility of the daily operations.