LDX Solutions supplies a complete range of emission control technologies for air emissions control from the pulp and paper industry. These technologies include solutions for odorous/toxic NCG gases, power boiler particulate and acid gases, lime kiln emissions, and many other various emission sources found in pulp and paper manufacturing.

Serving the pulp and paper industry since 1937 the LDX Solutions team continues to demonstrate a strong history of experience and knowledge to assist you with meeting your plant’s needs. We provide engineered solutions for critical pulp mill applications as well as air pollution control.

Pulp and Paper Air Emissions Control


Our Pulp Mill Solutions address chemical processing, energy savings, environmental, and evaporation needs. Our LDX Solutions industry experts match the Lundberg® technologies to the specific requirements of each application.

A notable example of the LDX Solutions role in controlling emissions in the pulp and paper industry is the recent effort to meet the US EPA air toxics regulations commonly known as the Boiler MACT rules. (MACT stands for “maximum achievable control technology”). These rules, mandated nationally by the 1991 amendments to the Clean Air Act, required operators of biomass fired boilers of a significant size to install the highest performing emission abatement technology to demonstrate that the emissions were less than a specific concentration limit.

This federal requirement fell heavily on the pulp and paper industry because of the industry’s reliance on wood-fired boilers as a source of the steam necessary in the manufacture of pulp and paper. Before the Boiler MACT regulations were promulgated the emissions from most of these wood-fired boilers in the pulp and paper industry were treated by low energy wet scrubbers sometimes preceded with cyclones or multiclones. Unfortunately, none of these scrubber systems were capable of reliably meeting the Boiler MACT particulate requirement of less than 0.037 lbs/million BTU. 

Fortunately, with existing scrubbing systems already in place, wet electrostatic precipitators (wet ESPs) were a logical technology that could be simply added on to the outlet of a scrubber. This approach was further vindicated by the fact that an add-on wet ESP would have minimal effect on the overall system pressure drop and no impact on the water requirement of the final system. Also, this approach was very practical in that the add-on wet ESP could be installed while the scrubber was routinely operating and tied in quickly during an otherwise planned outage.

During the period of the Boiler MACT project work (2014 – 2017) LDX Solutions was selected to provide Geoenergy® E-Tube® Wet Electrostatic Precipitators by six of the most prominent pulp and paper companies in the USA as well as other non-pulp and paper companies that were also subject to the Boiler MACT rules.

Performance/compliance testing of all these wet ESP projects are now complete. In all cases the Geoenergy® E-Tube® Wet Electrostatic Precipitators complied with the stringent EPA MACT rules with a significant margin of safety.

The successful experience of LDX on the Boiler MACT projects and many others is a record that is available to any company in the pulp and paper industry. If you have a an emission control challenge please contact us.