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  • ANDRITZ decanter centrifuge for environment

ANDRITZ decanter centrifuges for efficient sludge thickening and dewatering

Handling the 24/7 demanding requirements of modern wastewater treatment plants is a daily challenge. Looking for a well-proven solution which is continuously improved? Wanting to optimize performance while reducing power consumption? Hoping to reduce costs? Our ANDRITZ decanter centrifuges are the ideal solution for almost all wastewater applications!

Whatever you are looking for dewatering or thickening, the ANDRITZ decanter centrifuges can handle various flow rates and types of sludge providing you with state-of-the-art separation depending on your input, process and objectives.

ANDRITZ decanter centrifuge range for environment

  • ANDRITZ decanter centrifuge D, a reliable solution with high versatility for a wide range of applications.
  • ANDRITZ decanter centrifuge DU, the new decanter which brings best performance in the environmental market.

ANDRITZ decanter centrifuge D, a reliable solution with high versatility for a wide range of applications

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ANDRITZ decanter centrifuge for environment

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An unique application-dependent scroll for efficient sludge dewatering and thickening.

ANDRITZ decanter centrifuge D at a glance:

  • Easy and immediate change of process settings due to variable scroll and bowl speeds
  • Fast dismantling design
  • Minimum footprint requirements due to in-line design
  • Optimum process performance due to adjustable pond depth and automatic control system
  • Lowest possible machine downtime due to easy, fast, and efficient service and maintenance
  • High capacity and dryness while using only minimum of additives
  • High level of wear protection

Low power consumption features to reduce your total cost of ownership

ANDRITZ SEPARATION is committed to reduce your operation costs and to save valuable resources by continuously improving the efficiency of our decanters depending on your flow and your application, by providing some additional features:

  • TurboJet weir plate: The patented TurboJet weir plate guides the liquid discharge in the opposite direction to the bowl rotation. Adjustable nozzles form a jet similar to a jet engine’s exhaust and provide a thrust force. This extra force aids the bowl rotation and reduces power consumption.
  • Proven in a variety of applications
  • Does not affect cake dryness, capture rate, etc.
  • Interchangeable nozzles allow fine-tuning for different flow rates
  • HIgh Hydraulic Pressure (HHP) Design: By reducing the discharge diameter of the bowl, the power consumption is reduced significantly while pond depth and hydraulic pressure are increased. While the higher pond depth improves the flow conditions the high hydraulic pressure supports the solid removal. Since power consumption is proportional to the square of the radius of the port for discharge of the solids/liquids, reducing the radius of the discharge ports decreases the decanter’s specific power consumption significantly.
  • Reduces power losses from the accelerated liquid and solids flows
  • Direct or regenerative drive: ANDRITZ decanter centrifuges D are available in both versions, direct and regenerative drive. According to your specific needs, application and relative speed used, ANDRITZ  will propose you the right drive to reach your objectives and demands while maintaining the lowest energy consumption


D2D3D4D5D6D7D10D12
Solid capacity 
(kg/hr)
10-80020-2,00030-3,00050-5,000100-10,000200-15,000300-20,000300-25,000
Hydraulic capacity
(m3/hr)
0.2-151-303-503-8010-17020-25030-37050-450
Installed power
(kW)
7.5-2010-4515-6022-13255-20075-245132-245160-350

ANDRITZ decanter centrifuge DU, the new decanter which brings best performance to the environmental market

ANDRITZ has developed a new generation of decanter centrifuge, bringing you better results than any decanter before: the ANDRITZ decanter centrifuge DU. As a global separation specialist, ANDRITZ has taken a new development step in decanter centrifuges that focuses on performance and benefits for the users in the municipal wastewater market:

  • High solids dryness: At ANDRITZ, we know that it is essential to obtain the highest possible solids dryness. With the ANDRITZ decanter centrifuge DU, you can expect up to 1% higher dryness than from a conventional decanter.
  • High capacity: The ANDRITZ decanter centrifuge DU provides up to 20% higher capacity, which will enable you to increase your plant capacity without changing the machine footprint.
  • Low polymer consumption: Still with the target of improved operating economy, polymer consumption is a key factor in reducing total cost of ownership. In operation, the ANDRITZ decanter centrifuge DU requires 1 kg/TDS less polymer dosage, which results in lower expenses for consumables and allows the polymer dosage to be optimized independently of the decanter operating parameters.
  • Low energy consumption: Energy consumption is a key element in the process of waste water treatment. In terms of cost cutting, it is important to ally treatment efficiency with reduced energy consumption. With the ANDRITZ decanter centrifuge DU, save up to 50% more than a traditional decanter centrifuge.
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Environment

  • Thickening and dewatering of municipal wastewater
  • Treatment of drinking water sludge by high performance rotor
  • Dewatering of desalination sludge and municipal solid waste
  • Dredging/drilling mud
  • Pulp and paper sludge

3D animation of 2-phase decanter for sludge treatment


3D animation of 3-phase decanter for sludge treatment


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ANDRITZ SAS
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  • Decanter centrifuge D PDF : 2.4 MB
  • Decanter centrifuge DU PDF : 248 KB
  • The key to efficient zero-liquid discharge (ZLD) PDF : 674 KB
  • Metris addIQ control systems

    Intelligence for machine and process control

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  • Metris addIQ control system for decanter centrifuges PDF : 773 KB