Innovative DAF pump system improves efficiency and saves costs
Cedar Meats is a state-of-the-art meat exporter in Victoria, with a continual improvement philosophy. They needed to upgrade their DAF system but did not want to just go for the “standard” system. They wanted a more energy-efficient system, and one that could deliver low running costs for the life of the DAF pump system.
The “conventional” DAF pump system consists of a centrifugal pump that pulls clean effluent from the DAF tank and feeds it into a pressurised air saturation vessel. A compressor also feeds compressed air into the same vessel and the air saturates into the effluent water. The water is then fed back into the bottom of the DAF tank where the air comes out of solution to form tiny bubbles, which attach to fats and grease in the system and float it to the top of the tank where it is scraped away. The system requires a control system to combine air and water needs, and it requires regular certification of the pressure vessel.
The Chief Engineer at Cedar meats was very impressed by the simplicity of the system and the positive results including reduced maintenance and other costs.
There is also maintenance of the DAF pump, compressor and pressure vessel to consider, along with energy consumption of both pump and compressor. Capital costs and running costs are not cheap for this “standard” system.
Chief Engineer at Cedar Meats, Mr Yogesh Mistry went looking for a solution that did not involve intricate and delicate control systems and did not need ongoing Worksafe certification for pressure vessels. He contacted Hydro Innovations to get information on the EDUR DAF pump he had read about.
EDUR, a German Pump manufacturer since 1927, has developed a multi-stage multiphase pump capable of handling a gas/water mixture, making it ideal as a DAF pump. The pump draws clean effluent from the DAF tank, and at the same time, draws in atmospheric air on the suction side of the pump. The pump sheers and mixes the air with the water, and under pressure from the multi-stage pump, air saturates into the effluent water. The water is then pumped into the bottom of the tank, where the air comes out of solution, as in conventional systems. No compressor or air saturation pressure vessel is needed.
Mr Mistry was impressed with the simplicity of the system and promptly arranged the purchase of an EDUR DAF pump. He has been pleased with the positive results, which include: A higher rate of solids removed; less power used for the job (reducing power costs); less complicated controls and he has a low maintenance future ahead for the system.
To find out more about pumps in Australia, call us on (02) 9898 1800 or email us at email@example.com.
EDUR is a leading German pump manufacturing company, specialising in high-quality industrial centrifugal pumps. EDUR produces pumps for industries such as the food process industry and the municipal industry. Their pumps are customised to suit a range of applications including hot and cold water pumping, wastewater, LPG pumping, dissolved air flotation (DAF) and refrigerant pumping.
The EDUR range of multi-stage centrifugal pumps can deliver flows to 45 litres per second and heads to 300 metres. They are also available in a variety of materials (Cast Iron, All Bronze, All Stainless Steel and Super-Duplex) enabling them to pump corrosive fluids including seawater. These centrifugal pumps are ideal for booster systems, boiler feed and condensate systems, washing plants, water treatment and hardening systems.
Pumps can be close or long-coupled. Advantages include:
- All Iron, All Bronze, All Stainless Steel and Super-Duplex construction
- Flows to 45 l/s
- Heads to 300m
- Handle temperatures from -40oC to 160oC depending on model
- Single and double mechanical seals available along with gland packing and water cooled gland packing
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Hydro Innovations is proud to distribute a broad range of quality, reliable and industry-leading industrial pumps and aerators.
We are also delighted to share that Hydro Innovations is proud to be the exclusive distributor of Gorman-Rupp Pumps.
Gorman-Rupp is the world leader in self-priming centrifugal wastewater pump technology, and invests heavily in R&D, and in training for their international representatives – like Hydro Innovations.
This puts us in an excellent position to make the very best recommendations for our Australian customers.
Our other suppliers, Ragazzini of Italy and EDUR of Germany, are also world leaders in their respective technologies (Peristaltic Pumps – Ragazzini, and Specialist centrifugal pumps – EDUR).
We carry a very large inventory of pumps and spare parts for all of these brands, to help us to deliver industry-leading service.