A complete range of decanters for wastewater treatment
We offer a complete range of decanter centrifuges for wastewater treatment, sludge thickening and dewatering. From robust i-DW units to state-of-the-art ALDEC G3 VecFlow sludge centrifuge systems. Regardless of your demands or challenges, we have the right machine for you.
Dewatering centrifuges innovating the wastewater industry
When partnering with Alfa Laval, you have full access to our application experts who can advise you on how to optimize your operations. And with the backing of our extensive service network, you always get quick assistance whenever you need it.
Alfa Laval has been leading the wastewater decanter market for decades. With a strong focus on operational reliability, separation performance and high customer value, we continue to innovate the business.
i-DW
The Alfa Laval i-DW range of decanters for water and wastewater treatment offers cost-efficient operation, easy service and high reliability. This is our basic range of decanters, featuring the same high quality as our more advanced models and many of the technical innovations that have made Alfa Laval decanters for wastewater the preferred choice in wastewater plants across the globe.
i-DW is available with capacities from 10 to 60 m3/h.
Decanter for wastewater - benefits
- Low power consumption
- Highly reliable operation
- Low investment cost
- Small footprint
- Wear protection coating
- PowerTubes
- Easy to service
Limitations
- Lower dry solids percentage than ALDEC, ALDEC G3 and ALDEC G3 VecFlow™
- Less advanced control system than ALDEC, ALDEC G3 and ALDEC G3 VecFlow™
- No expansion/upgrade options
ALDEC
Alfa Laval ALDEC decanters bring high separation efficiency, reliable operation and low operating costs to all types of water and wastewater treatment plants. ALDEC is Alfa Laval’s medium range of decanters for wastewater treatment, comprised of a wide variety of sizes. Low power and polymer consumption in combination with easy service makes ALDEC very attractive in terms of total cost of ownership.
ALDEC is available with capacities from 3 to 125 m3/h.
Decanter for wastewater - benefits
- High separation performance
- Low power consumption
- Highly reliable operation
- Upgradable to G3 or G3 VecFlow™
- Replaceable wear protection tiles
- PowerTubes
- Easy to service
Limitations
- Higher Power consumption than ALDEC G3 and ALDEC G3 VecFlow™
- Larger footprint than i-DW
ALDEC G3
The Alfa Laval ALDEC G3 features the same technology as ALDEC G3 VecFlow™, except for the feed zone. ALDEC G3 has a standard feed zone, giving it somewhat lower performance and higher power consumption. It is a good fit for a wide range of applications where high separation performance and low power consumption are required, but where the extra benefits offered by VecFlow™ are not necessary. An Alfa Laval ALDEC G3 can be upgraded to the VecFlow™ design.
ALDEC G3 is available with capacities from 23 to 225 m3/h.
Decanter for wastewater - benefits
- Ideal for demanding sludges with high solids loading
- High separation performance, 1% drier solids compared to standard decanters
- Low power consumption
- Upgradeable to G3 VecFlow™ PowerTubes, Slimline conveyor and Direct Drive gearbox
- Replaceable wear protection tiles
- Advanced control system Easy to service
- Available in many materials, including Duplex
Limitations
- Larger footprint than i-DW
ALDEC G3 VecFlow™
Alfa Laval ALDEC G3 VecFlow™ is a state-of-the-art decanter for dewatering and thickening applications. It offers an ideal solution for duties where maximum separation performance, lowest possible power consumption, very high capacity and advanced control possibilities are required. ALDEC G3 VecFlow™ features the most advanced technology available on the market, including our unique VecFlow™ feed zone and Slimline conveyor.
ALDEC G3 VecFlow™ is available with capacities from 23 to 230 m3/h.
Decanter for wastewater - benefits
- Highest performance at the lowest operating cost
- Extremely effective separation, 2% drier solids compared to standard decanters
- Lowest power consumption, 30% lower than standard decanters
- Lowest total cost of ownership
- Upgradeable
- PowerTubes, Slimline conveyor, Direct Drive gearbox and VecFlow™ feed zone
- Replaceable wear protection tiles
- Advanced control system
- Easy to service
- Available in many materials, including Duplex
Limitations
- Larger footprint than i-DW
Overview
| Benefits | i-DW | ALDEC | ALDEC G3 | ALDEC G3 VecFlow™ |
| Separation performance | ++ | +++ | ++++ | +++++ |
| Low power consumption per m3 sludge | ++ | +++ | ++++ | +++++ |
| Low investment cost | +++++ | ++++ | +++ | ++ |
| Small foot print | +++++ | +++ | +++ | +++ |
| Solids handling | ++ | +++ | +++++ | +++++ |
| Suitable for demanding sludges | ++ | +++ | +++++ | +++++ |
| Reject quality | ++ | +++ | ++++ | +++++ |
| Expandability | ++ | +++ | +++++ | +++++ |
| Wear protection | ++ | +++ | +++++ | +++++ |
| Control system | ++ | +++ | +++++ | +++++ |
| Features | i-DW | ALDEC | ALDEC G3 | ALDEC G3 VecFlow™ |
| PowerTubes | X | Optional | X | X |
| Wear protection coating on conveyor | X | |||
| Wear protection tiles on conveyor | X | X | X | |
| Wear protected inlet | X | X | ||
| Slimline Design | X | X | ||
| Direct Drive gearbox | X | X | ||
| VecFlow™ | X |
| Options | i-DW | ALDEC | ALDEC G3 | ALDEC G3 VecFlow™ |
| PowerTubes | Included | X | Included | Included |
| Different gear boxes | X | X | X | |
| Bowl available in Duplex | X | X | X | X |
| Conveyor available in 316 | X | X | X | |
| Conveyor available in Duplex | X | X |
Latest customer success stories
Voir tout
Alfa Laval helps Stockholm Vatten to have a steady flow
Stockholm’s municipal water company, Stockholm Vatten VA AB, has a Performance Agreement with Alfa Laval covering 15 decanters at three different sites.
juin 15, 2016
