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Industrial wastewater

Is your plant ready for all the challenges posed by industrial wastewater? Variations in sludge type, sludge conditions, suspended solids and more make industrial wastewater treatment a complex endeavor. At ANDRITZ, we provide the full range of technologies and expertise to help guide you to an economical and environmentally sound solution.

Reliable solutions no matter the industry

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Semiconductor plant

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Food industry

Separation expertise for sustainable and efficient zero-liquid discharge (ZLD)

Power plant

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Geothermal power plant

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Pulp & paper

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Recycling company

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Gravel plant

World’s largest rotary drum dryer for sludge treatment

Cement industry

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Environmental remediation industry

Whether it’s wastewater from the food industry, chemical plants, pulp and paper mills, semi-conductor manufacturing, power facilities, or cement production — we deliver innovative solutions for countless applications. Virtually every industrial waste treatment solution provided by ANDRITZ is individually tailored to specific process requirements. We apply our many years of experience and vast portfolio of separation and filtration solutions and proven services and automation technologies to find the correct solution from the industry’s broadest portfolio for industrial wastewater.  

From individual technologies to comprehensive solutions

Our wastewater treatment solution packages offer you the flexibility to select either individual equipment or a complete system, enhancing your process performance. All components, including electrical and automation systems as well as services, are meticulously tailored to your specific requirements. This holistic approach ensures a seamless process solution from a single, reliable source.

Do you have questions?  Get in contact with us!   


Screening technologies

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HydraSieve – static screen

- Unequal efficiency on flat or fibrous material

- Minimum control and maintenance

- Low investment and operating costs

ANDRITZ Aqua-Screen fine screen

Aqua-Screen coarse and fine screening solutions

- Bi-dimensional separation

- Unmatched lifting capacities (dimensions/quantity)

- Low headloss

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Rotating screen

- Pre-treatment unit

- Fully enclosed, stand-alone unit

- Easy maintenance with built-in washing system

SpiroGrit classifier & washer

Grit classifier and washer

- High grit particles capture rate (95% minimum)

- Combo unit

- Fully enclosed

Tertiary treatment solutions

ANDRITZ Underdrain system

Underdrain gravity filter

- Optimized filtration cycle times with low initial headloss

- Possibility to increase filtration velocities (up to 10 m/h)

- High open area thanks to wedge wire (ex 10,7% for 300µm)

Hydrasand

Hydrasand continuous backwash sand filter

- Continuous operation and cleaning

- Adaptable sand bed depth for high performances

- Minimum maintenance cost & energy requirements

Hydradisc gravity disc filter

Gravity disc filter

- High hydraulic throughput capacity on a small footprint

- Gravity system with low headloss, no lifting of wastewater required

- Significant reduction of filterable solids, COD, BOD, phosphorus

Sludge thickening solutions

PowerDrain gravity belt thickener

Belt thickener

- Largest filtration area of the market

- Tracking automatic pneumatic system to increase belt life time

- Advanced RheoScan solution for automatic control of unit and low polymer consumption

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Drum thickener

- The most compact thickening system on the market

- Low maintenance and minimal supervision required

- Entirely closed system to avoid odors and mist

- Outlet solids up to 10 %

ANDRITZ decanter centrifuge D for the environment industry

Decanter centrifuge

- High flow rates of >150 m³ /h without polymer

- Outlet solids >4% DS

- Automated control of flow and outlet solids

Sludge dewatering solutions

ANDRITZ decanter centrifuge D for the environment industry

Decanter centrifuge

- Fully automated operation

- Optimized energy consumption

- Best capacity-to-footprint ratio

Low-profile ANDRITZ belt press

Belt filter press

- Large range from low to high pressure

- Highest capacity

- Simple operation with low profile design

C-Press screw press for efficient sludge dewatering

Screw press

- Lowest energy consumption

- Completely enclosed design

- Maintenance friendly

ANDRITZ Filter press

Filter press

- Fully automated operations with scraping robot

- Highest cake dryness

- Low use of chemicals / polymer

Sludge drying solutions

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Paddle dryer

- Full drying to >90% DS, producing Class A final product

- Smallest footprint

- 200–5,000 kg/h water evaporation per unit

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Belt dryer

- Full drying to >90% DS, producing Class A final product

- <5% dust content in final product

- Low grade waste heat as heating medium

ANDRITZ fluid bed dryer

Fluid bed dryer

- Full drying to >90% DS, producing Class A final product

- 1,000–10,000 kg/h water evaporation per unit

- Fully automated operation

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Drum dryer

- Full drying to >90% DS, producing Class A final product

- 3,000–14,000 kg/h water evaporation per unit

- <5% dust content in final product

- Waste heat recovery possible

Process optimization

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Metris addIQ RheoScan (for belt filter presses and belt tables)

- Real-time, automatic adjustment of polymer dosage

- Cost savings due to reduction of polymer consumption up to 40%

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Metris addIQ ARGOS (for decanter centrifuges and screw presses)

- Real-time, automatic adjustment of polymer dosage

- Cost savings due to reduction of polymer consumption up to 25%

Mobile solutions (plug & play)

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Mobile filtration unit

- Capacity 100 m³/h

- Open gravity filter with ANDRITZ Underdrain System (AUS)

- Filtering media: Sand, CAG, and others

ANDRITZ screw press C-Press for sludge dewatering

Mobile dewatering units

- Can be fitted with the right dewatering technology for your project

- Compact, easy transportable, plug&play system

- Facilitates operator access

- Fully automated

Key benefits

  • Lower energy consumption
  • High-quality granules meeting Class A requirements
  • Lower operating costs
  • Maximum energy recovery
  • Continuous operation

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Industries we serve

In many of the world’s most important industries, separation is vital to sustainable growth.

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A world of service

Put our 150 years of OEM experience to work!

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Intelligence for machine and process control

The brain behind your operation: Metris addIQ control systems

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