ALDEC
Alfa Laval ALDEC decanter centrifuges are designed for the sludge thickening and dewatering process in municipal and industrial wastewater treatment plants, with a focus on cost-efficiency, reliability, easy operation and sustainability.
Sludge decanter centrifuge design provides a series of concrete benefits
- Reduces sludge volume during the sludge thickening and dewatering process, which cuts down on transport and disposal costs
- High capacity at small footprint: Compact, modular design saves space
- High performance combined with low energy consumption
- Wear-resistant design with anti-blocking feature
- Complete, fully enclosed cleaning-in-place (CIP)
The extensive range of ALDEC centrifuges for sludge thickening and dewatering are capable of handling a wide range of flow rates. They are designed to be efficient, simple to install, easy to maintain and straightforward to operate. Installation, operating and service life costs are minimal.
![Cost effective sludge decanter centrifuges](https://www.alfalaval.com/globalassets/images/products/separation/membranes/mbr-membranes/alfa-laval-mbr-low-total-cost-of-ownership.png)
Less water, lower cost
Decanter centrifuges are crucial for removing the water content of sludge from municipal water (residuals) and of wastewater (biosolids) plants, as well as from industrial waste streams. The drier the sludge, the less space it takes up and the less it weighs – both resulting in big savings on transport and disposal costs, while also helping to meet sustainability and environmental goals.
Low energy consumption and labor costs
With ALDEC decanter centrifuges, you benefit from low energy consumption and infrequent maintenance costs, keeping sludge thickening and dewatering expenses to a minimum. They are also fully automatic, so you need less labor to operate a centrifuge verses other dewatering technologies.
How does sludge thickening and dewatering work?
Separation takes place in a horizontal cylindrical bowl equipped with a screw conveyor. The feed enters the bowl through a stationary inlet tube and is accelerated smoothly by an inlet distributor. The centrifugal force that results from the rotation then causes sedimentation of the solids on the wall of the bowl. The conveyor rotates in the same direction as the bowl, but slightly slower, thus moving the solids towards the conical end of the bowl. The cake leaves the bowl through the solids discharge openings into the casing.
Separation takes place throughout the entire length of the cylindrical part of the bowl, and the clarified liquid leaves the bowl by flowing over adjustable plate dams into the casing. The conveyor rotates in the same direction as the bowl, but slightly slower, thus moving the solids towards the conical end of the bowl. The cake leaves the bowl through the solids discharge openings into the casing. Separation takes place throughout the entire length of the cylindrical part of the bowl, and the clarified liquid leaves the bowl by flowing over adjustable plate dams into the casing.
For further details, please visit view our product brochure.
Performance audit for Decanter Centrifuges
Get decanter centrifuge optimization and cost-savings throughout the sludge thickening and dewatering process with Alfa Laval Performance Audit as our global service and support experts help make the most out of your equipment.
Minimize operating cost with Alfa Laval IoT Services
Alfa Laval’s IoT Services is a range of digital services aiming to reduce operating costs and maximize operating reliability in wastewater plants.
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Aldec G3
ALDEC decanter centrifuges are available with capacities ranging from 2 to 95 m3/h. For higher capacity and more advanced requirement, Aldec G3 is your ideal solution.
![ALDEC G3 sludge dewatering centrifuge](https://www.alfalaval.com/globalassets/images/products/separation/centrifugal-separators/decanters/aldec-g3_decanter_front_640x360.png)
Case story
Reducing biosolids disposal costs with a decanter centrifuge
A southern California dairy plant reached their cost savings and sustainability goals after selecting a decanter centrifuge and maintenance monitoring plan from Alfa Laval.
![Hollandia decanter 64x360](https://www.alfalaval.com/globalassets/images/local/usa/wastewater/hollandia-decanter-64x360.jpg)
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Solutions for the Circular Economy
More and more wastewater treatment plants are discovering the benefits of a circular, holistic approach to wastewater treatment. Cost savings, reduced environmental impact and new income streams from recovered resources are but a few. Every wastewater treatment plant is unique and has its own set of challenges and opportunities. With our expertise in processing and our broad range of products, we can support your shift to a circular resource flow. Regardless of whether you are a contractor, designer or plant operator we can help you find the optimum solution for your specific project.
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How can we help?
With industry-leading wastewater technology and expertise based on the experience of thousands of installations, we can help analyze your unique situation and select the optimal equipment model, configuration, and services for your needs and budget. Get in touch by submitting a general inquiry using the contact form below.
Request a quote
Submit your process information to receive an estimated price range for this application. (Please note that this will be a budget estimate only. A firm quotation will require more detailed process parameters.)
Local contacts
Midwest
Chuck Shaw
Regional Sales Manager – Water Separation Sales – Midwest
Email: chuck.shaw@alfalaval.com
Phone: (317) 345-5512
Coverage area: IA, IL, IN, KS, KY, MI, MN, MO, ND, NE, OH, SD, TN, WI
Northeast
Jose Carpio
Director of Sales – Water & Wastewater
Email: jose.carpio@alfalaval.com
Phone: (804) 852-9340
Coverage Area: CT, DE, MA, MD, ME, NH, NJ, NY, PA, RI, VT, WV
Northwest
Roger McKinney
Regional Sales Manager – Water Separation Sales – Northwest
Email: roger.mckinney@alfalaval.com
Phone: (559) 317-8551
Coverage area: WA, OR, ID, MT, WY, CO, NM
South
Marc Arquit
Regional Sales Manager – Water Separation Sales – South
Email: marc.arquit@alfalaval.com
Phone: (713) 882-1286
Coverage area: AR, LA, MS, TX, OK
Southeast
Mark Schlitzkus
Regional Sales Manager – Water Separation Sales – Southeast
Email: mark.schlitzkus@alfalaval.com
Phone: (713) 906-0505
Coverage area: AL, DC, FL, GA, NC, SC, VA
Southwest
Marc Perratore
Regional Sales Manager – Water Separation Sales – Southwest
Email: marc.perratore@alfalaval.com
Phone: (201) 388-8393
Coverage area: CA, NV, AZ, UT
Accelerating sustainable solutions
Imagine a more sustainable world. A world in which less is needed to produce even more. A world in which we efficiently meet our growing energy needs and at the same time reduce CO2 emissions. Imagine a world where we can harness the power of natural resources while preserving them. At Alfa Laval, we don't just imagine this world. We build it together with our customers and our partners.
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