Mercury Control for Sewage Sludge Incinerators
APC Technologies offers proven, safe mercury control systems for both existing SSIs and new SSIs that must comply with new mercury emission limits.
Some APC systems at Wastewater Treatment Plants (WWTPs) have demonstrated mercury removal efficiencies of 99.9% and better. APC’s mercury control systems also control dioxins and furans, particulate matter, cadmium, and lead to compliant levels.
Proven Solution for Sewage Sludge Incinerators
APC’s MercPure Series mercury emission control systems are in operation at numerous WWTPs around the US. All of APC’s systems have easily complied with the new mercury emission limits, including the stricter emission limits for new SSIs (subpart LLLL) detailed below:
Section 129 of the Clean Air Act (CAA), “Solid Waste Combustion,” requires the EPA to adopt standards for solid waste incineration units. This includes sewage sludge incinerators (SSIs) located at wastewater treatment facilities. SSIs combust dewatered sewage sludge to reduce sludge volume and disposal costs. In 2011, the EPA put forth its final rule concerning SSI units and emission guidelines (see 40 CFR Part 60 Subparts LLLL and MMMM). The newly-established emission limits apply to not only mercury but also to particulate matter, HCl, CO, dioxins/furans, NOx, SO2, cadmium, lead, and fugitive emissions from ash handling.
APC Technologies offers proven, safe mercury emission control systems for both existing SSIs that must comply and new SSIs (‘new’ being those that commenced construction after 10/14/2010 or commenced modification after 9/21/2011). Beyond mercury removal, APC’s MercPure systems provide comprehensive control of dioxins and furans, particulate matter, cadmium, and lead to achieve full compliance.
APC Serves the City of St. Louis On Large Project (One of the largest biosolids project in North American history)
In 2023 APC was awarded a multi-million-dollar contract to design and fabricate six (6) comprehensive mercury, dioxins/furans, and volatile organic compound (VOC) control systems for the six new biosolids processing facilities being designed and constructed by the St. Louis Metropolitan Sewer District (MSD) in Lemay and Bissell Point, Missouri. Delivery for these six APC systems began in 2025.
Benefits of Our MercPure Series Mercury Emission Control Systems for SSIs
workspace_premiumSafe Operation and Minimal Maintenance
Due to APC’s design provisions and equipment features, none of APC’s MercPure Series systems have had any safety, operational, maintenance, or other issues. APC’s activated carbon systems have had no operating problems at all at any of the SSI sites for years now, unlike other activated carbon systems, owing to APC’s system design and carbon selection.
workspace_premiumProven Compliance and Performance
APC’s MercPure Series systems have a proven track record of environmental compliance and reliable performance, achieving mercury removal efficiencies of 99.9% and better in some cases. Case studies showing results for four of APC’s MercPure installations are provided in a 2017 WEFTEC Presentation and Paper.
workspace_premiumSimultaneously Control Other Pollutants
APC’s mercury removal systems simultaneously control dioxins/furans emissions, lead emissions, cadmium emissions, and total particulate matter emissions with very high removal efficiencies, demonstrating compliance for those regulated pollutants as well.
workspace_premiumTailored to Site Needs
APC’s MercPure Series mercury emission control systems for SSIs are customized to meet individual site requirements.
Our MercPure Mercury Emission Control Systems for SSIs
Every system is tailored to each site’s needs; however, APC’s MercPure Series systems for SSIs generally include:
- Very high-efficiency particulate matter removal (even where a venturi scrubber and WESP are already in place)
- A gas reheat step
- A system fan/blower if needed
- An adsorption step using a long-proven specialty activated carbon
- A startup heater system if needed
- System dampers where needed
- Instrumentation and controls
- APC can further supply the system ductwork and stack if needed.
Interested in one of our MercPure Series Mercury Emission Control Systems?
Talk to one of our experts today.
“Always available and ready to help with solutions to problems.”
— Gene Zynel, Greater Hazleton Joint Sewer Authority
Read more testimonials here.
APC Technologies is here to support you every step of the way. We’ll work to learn the details of your process emissions and recommend the best emission control system to meet your needs and goals.
Phone: 412.344.1870
Proven Emission Control Experience
We are an established leader in emission control systems with over two decades of successful installations.
engineeringOver 50 industries served.
autorenew40% of projects are for repeat customers.
workspace_premium20+ years of proven installations in emission control applications.
punch_clock6,804,000,000,000 CF (cubic feet) of polluted air treated.
APC proudly serves Fortune 50 companies, small businesses, and everything in between.
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