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Integrated Solutions for Coal Combustion Residuals and the Effluent Limitation Guidelines Compliance
Coal Combustion Residuals (CCRs) — fly ash, bottom ash, boiler slag, and flue gas desulfurization (FGD) materials—continue to be a major waste stream from coal-fired power plants. Following EPA’s publication of the final CCR Rule on April 17, 2015 (with an effective date of October 19, 2015), all U.S. coal-fired power plants must develop compliance strategies for CCR landfills and CCR surface impoundment. Key compliance considerations for existing and inactive facilities include:
- Location criteria (water table, wetlands, faults, seismic impact Zones)
- Design (structural stability, composite liners, emergency action plan)
- Operations (fugitive dust and run-on/run-off control plans)
- Groundwater, sampling, monitoring and protection
- Facility closures with CCR in place and with CCR removal
Effluent Limitation Guidelines (ELG): The final ELG rule was promulgated and became effective on January 4, 2016, under the Clean Water Act and establishes new requirements for steam power plant wastewater streams. Highlights include:
- New discharge requirements for flue gas desulfurization (FGD) wastewater
- Zero discharge requirement for ash transport and bottom ash waters
- A compliance date of “as soon as possible” after November 1, 2018
- Additional years of compliance for evaporative technologies until 2023
- Anti-circumvention provisions
Complying with CCR and ELG Regulations
Amec Foster Wheeler’s Team will conduct a free webinar which will review the CCR and ELG rules and strategies that coal-fired power plants must consider to achieve compliance.
CCR dry conversion systems and equipment will be discussed, including:
- Typical equipment and systems used in wet to dry ash conversions for bottom ash and fly ash handling
- Consideration for bottom ash closed-loop systems
- Considerations for fly ash dry handling systems
- Discussion of ash storage and disposal alternatives
Surface impoundment closure options will be reviewed highlighting:
- A surface impoundment closure framework
- Surface impoundment closure approaches and considerations for closure by removal, in place closure, and hybrid closure
- Comparison and selection of the preferred closure approaches
ELG treatment technologies and issues that will be presented include:
- Physical chemical treatment
- Biological treatment processes for meeting selenium and nitrogen limits
- Polishing technologies, such as zero valent iron
- Evaporation technologies including spray dryers and mechanical evaporators
- Paste processes
Questions from attendees will be addressed during the Q&A session of the webinar.
This webinar can help power producers make informed decisions about CCR and ELG Rule compliance strategies. Register today to secure your spot in this free webinar!
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Elmer Mitchell, PE | Senior Power Staff Consultant, Power & Process Americas | Amec Foster Wheeler
Elmer Mitchell has more than 40 years of experience in chemical engineering, including the design of power and industrial water treatment systems and operation of water and wastewater. Recent experience has been in the design and construction of several wet-to-dry ash conversions for coal-fired power plants in western, eastern, and southeastern regions of the United States.
Ken Daly, PE | Principal Civil Engineer, Solid Waste/CCP Practice Lead | Amec Foster Wheeler
Mr. Daly has over 20 years of progressive experience in the engineering design, permitting, and construction of solid waste management facilities including CCP landfills and impoundment closures. Since 2007, he has served as the project manager, lead engineer, and engineer of record for several CCP landfill and impoundment closure projects. His engineering design and permitting qualifications are complemented by his practical knowledge and "hands-on" understanding of construction means and methods gained through a variety of construction projects. He holds a Masters and Bachelors of Science degree in Civil Engineering from the University of Illinois at Urbana Champaign.
Robert Kimball, P.E., BCEE | Vice President, Industrial Process Water Sector Lead | Amec Foster Wheeler
Mr. Kimball is a registered professional chemical engineer with 27 years of experience in the development and application of innovative solutions to industrial water and wastewater management and treatment solutions for a variety of industries worldwide. Bob currently serves as the Industrial Process Water Sector Lead for Amec Foster Wheeler. During his career, he has completed numerous feasibility studies and been involved with the design, construction and commissioning of more than 30 wastewater treatment plants, including high recovery reverse osmosis and zero liquid discharge facilities.
Brian D. Owens, PE | CCR Program Manager | Amec Foster Wheeler
Mr. Owens serves as the Amec Foster Wheeler Program Manager for CCR & ELG projects. Over the past 10 years, he has led teams of engineers and scientists on all stages of CCR projects from planning, design, construction, and O&M. He has led all different types of CCR projects from landfills and impoundments to balance of plant services. Mr. Owens is a graduate from Virginia Tech and is a registered professional engineer in nine states.