ANDRITZ has acquired LDX Solutions

International technology group ANDRITZ (headquartered in Graz, Austria) has acquired on Feb. 4th, 2025 LDX Solutions, a leading provider of emission reduction technologies and related services in the North American industrial market, with annual revenues of about $100 million.

This acquisition further strengthens ANDRITZ’s offering of environmental technologies and its presence in the growing North American market.

Comprising the strong legacy brands of Dustex®, Geoenergy® and Western Pneumatics, LDX Solutions offers a wide range of technologies and engineered solutions for:

  • Acid gas (SOx, HCl, HF) control with Circulating dry scrubber, Wet scrubber and Dry sorbent injection
  • Mercury & Heavy Metals abatement with Activated carbon injection
  • NOx control with Selective non-catalytic reduction an Selective catalytic reduction
  • Volatile Organic Compounds elimination with Regenerative thermal oxidizer and Regenerative catalytic oxidizer
  • Particulate Matter collection with Fabric filter dust collector (baghouse), Wet ESP and Cyclones
  • Pneumatic Conveyance with Dust collection system and Material conveyance system

The company’s emission reduction technologies will further complement ANDRITZ’s comprehensive clean air technologies portfolio.

With a team of 250 experts, decades of experience, and an installed base of more than 2’000 systems, LDX Solutions also enhances the service offering for ANDRITZ customers throughout North America.



ESP Electrostatic Precipitator 3D white-computer generated image

Dry Electrostatic Precipitator (ESP)

The ESP uses electrical forces to remove Particulate Matter (PM) from the flue gases. A high voltage source, generating a corona current, charges the PM which migrate to the collecting plate. PM are removed from the plate by a knocking action.

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3-D Rendering of ANDRITZ Fabric Filters

Fabric Filters (FF)

The Fabric Filter (or baghouses or bag filters) uses a filter media to separate Particulate Matter (PM) from the flue gases. The Particulate Matter are deposited at the surface of the fabric filter which may be made of different materials depending on the flue gas physical and chemical composition. The dust is removed periodically when cleaning the bags.

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Novel Integrated Desulphurization (NID) - EKP Unit 3

Novel Integrated Desulfurization (NID)

The semi-dry desulfurization combines the injection of a suspension/solution of alkaline reagent into the sulphur-rich flue-gases before removing the resulting product by filtration (Fabric Filer or Electrostatic Precipitator).

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Spray Dry Absorber and Fabric Filter

Spray Dryer Absorber (SDA)

The semi-dry desulphurization combines the injection of a suspension/solution of alkaline reagent into the sulphur-rich flue-gases before removing the resulting product by a Fabric Filter.

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Control de la Calidad del Aire – Chile

Technologies - Clean Air Technologies

ANDRITZ has over 130 years of experience in designing and building clean air technologies equipment. From single to multi-pollutants control equipment, adapted for heat recovery when needed, ANDRITZ solutions range from dedusting, desulphurization, denitrification, mercury control technologies to combined/multi-stage and multi-pollutants systems.

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Industries - Clean Air Technologies

ANDRITZ has an extensive experience across all major industries, Pulp & Paper, Iron & Steel, Metals, Waste to Energy (incl. RDF and sludge), Mining, Biomass and Utility, ANDRITZ provides you with a comprehensive portfolio of clean air technologies solutions focusing on reduced emissions, improved performance and efficiency to meet your operation strategies.

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Power generation

Reliable, efficient power generation from traditional and renewable fuels

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SPECTRUM NOW magazine

Read success stories of several projects in the pulp, paper and power industry.

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Downloads
  • ANDRITZ Clean Air Technologies brochure PDF : 9.2 MB