TRACK I: WATER, 316(b), WWM, ASH PONDS, LINERS, REMEDIATION, ELG, FGD, COOLING TOWER, O&M
ACCEPTING ABSTRACTS ON: Waste Water, Ground Water, ELG, CCR, 316(b), ELG, FGD Wastewater Monitoring, Cooling Tower, Water Sustainability, Disposal, PFAS, O&M, FGD, Algae, O&M, Water Management Technologies
Submit Abstracts by August 15th to make a 20-minute PowerPoint presentation.
I1.5 Optimizing Systems of Technologies for 316(b) BTA 6-Estimating Credits and Reductions
I1.5 Optimizing Systems of Technologies for 316(b) BTA 6-Estimating Credits and Reductions
Bill Stephens – J.S. Held
Waterford 3 (WF3), a nuclear power facility on the Lower Mississippi River performed a 2-year site-specific optimization study (January 2020 – January 2022) demonstrating operation of the systems of technologies, operational measures and best managements practices have been optimized to minimize impingement mortality (IM). This study developed a calculation baseline for comparison to determine credits for reductions in IM and entrainment (E) and demonstrated that WF3 operates a BTA meeting IM and E standards. WF3’s in-place systems of technologies include: 1) 33% credit for offshore cooling water intake structure (CWIS) located in the channel border/main channel habitat area where less habitat is available for fish and fish densities are much lower; 2) 27.15% credit for seasonal/operational reduction of cooling water usage from 1440 million gallons per day (MGD) to 1049 MGD; 3) 66.4% credit for minimized area of effective zone of influence (ZOI) compared to defined area of calculation baseline for the CWIS from combined reductions associated with river flow periods and reduced fish density and fish ability to avoid ZOI; and 4) 46% credit for use of fish-friendly multi-disc rotating Geiger screens. From the calculation baseline, credits for the identified reductions in impingement estimate impingeable fish rates based on the performance of each technology. Credit estimations are cumulative as opposed to additive and account for a 91.4% impingement reduction.
I1.6 Unique Strategies with 316(b) Compliance at Multiple Facilities
I1.6 Unique Strategies with 3`16(b) Compliance at Multiple Facilities
| Kurtis Schlicht – J.S. Held
Four facilities relied on fisheries-based approach to 316b compliance. Each facility developed a calculation baseline for comparison to determine credits for reductions in impingement mortality (IM) and entrainment (E) to demonstrate they met IM and E standards with BTA 6- Systems of Technologies. Each facility was situated on a unique water of the United States (WOUS) in four different states including two nuclear power plants, one fossil power plant and a paper facility. The Texas facility was an estuarine system on Sabine Lake. The Mississippi facility was on the large Lower Mississippi River. The Arkansas facility was located on a seasonal pool of the Arkansas River and the Georgia facility was on the small Chattahoochee River with water levels influenced daily by an upstream power-generating dam. Three of the facilities performed required 2-year impingement technology performance optimization studies and one relied on historical data. A variety of cooling water intake structures (CWIS) locations, zones of influence (ZOI), actual intake flows (AIFs) and screen technology types were assessed. One of the three facilities attempted the de minimis approach. All four facilities demonstrated compliance associated with reductions and credits compared to a calculation baseline with a system’s approach specific to each facilities’ technologies, management practices and operational measures |
I3.8 Freshwater Mussel Survey near a Midwestern Power Plant – Regulatory Lessons Learned
I3.8 Freshwater Mussel Survey near a Midwestern Power Plant – Regulatory Lessons Learned
Katelyn Jackson – EA
| In 2015, EA Engineering, Science, and Technology, Inc., PBC (EA) developed a §316(a) Demonstration for a midwestern power station that included biological studies used to examine thermal effects associated with station operations. Such studies included a freshwater mussel survey to characterize the unionid mussel assemblage and habitat on the Illinois River within the thermal plume in the vicinity of the station. A total of 3,349 individuals representing 25 species were collected within the survey area from the semi-quantitative and qualitative sampling efforts. |
I2.4 Section 316(b) Optimization Study at Nearman Creek Power Station
I2.4 Section 316(b) Optimization Study at Nearman Creek Power Station
Christopher Wiggins – Burns & McDonnell
The Nearman Creek Power Station, operated by the Kansas City Board of Public Utilities (BPU), is a coal-fired, 256-megawatt (MW) gross generating station located in Kansas City, Kansas. The Final Rule 316(b) Rule at § 122.21(r)(6)(i) states that if a facility chooses to comply with § 125.94(c)(5), a 2-year, site-specific Impingement Technology Performance Optimization Study will need to be conducted. The purpose of the study is to demonstrate that the operation of the modified traveling screens has been optimized and is functioning properly to minimize impingement mortality of non-fragile species. Burns & McDonnell has prepared an Optimization Study Plan, designed the temporary sampling system to collect fish and shellfish impinged off of the new traveling screens, and is completing the study with BPU. This presentation will focus on the study design (sampling equipment setup and experimental design), impingement and latent mortality sampling methods, needed ancillary data (traveling screen operational, and station data, and ambient water quality and flow data) and discuss the associated challenges in designing the temporary sampling system.
I3.5 The Realities of Installing EPA 316(b) Compliant Traveling Screens
I3.5 The Realities of Installing EPA 316(b) Compliant Traveling Screens
Ford Wall – Atlas SSI
This Paper explores the Engineering challenges and lessons learned of implementing EPA 316(b) requirements from a utility and manufacturer prospective. New York State DEC maintained lead agency status and required the equivalent of 316(b) for Con Edison’s East River Station in 2009. Best Technology Available identified replacing its existing dual flow screens with Atlas-SSI Ristroph Screens. The project seemed simple but insuring proper design and operation presented multiple challenges. The journey addressed electrical infrastructure, CFD Modeling of intake flows and structural loading, equipment material selection, fine mesh panel requirements and testing, continuous vs intermittent screen operation and ultimate compliance testing.
Co-Author: Gary Thorn, Consolidated Edison
I3.7 Desalination and reuse of Produced Water as agricultural irrigation water by basin solar still
I3.7 Desalination and reuse of Produced Water as agricultural irrigation water by basin solar still
Karim Ghasemipanah – Research Institute of Petroleum Industry
The aim of this study was desalination and reuse of produced water by using basin solar still distillation to meet the agricultural irrigation standards. Produced water is one of the big obstacles to the oil and gas industries. The produced water contains high dissolved solids, remaining oil and hydrocarbons, and other pollutants. Conventional treatment methods usually are not applicable and advanced technologies are expensive for produced water treatment. Availability of sufficient areas, high solar radiation, and the high number of sunny days in southern Iran are suitable parameters for solar distillation by using basin solar still. In this research to achieve the agricultural irrigation standards, three basin solar still with about one square meter area and different bottom surface covers including galvanized, dark polymer lining coated, and the dark anodized surface was made and installed in Research Institute of Petroleum Industry (RIPI). Produced water from an oilfield located south of Iran entered the three Basins solar still with different water depths of 1, 2, and 3 centimeters. Then after running some tests, optimum water depth and bottom surface cover for the production of more treated produced water were determined. The result showed that basin solar still with 30-degree slope for glass surface, dark polymer lining coated, 2 centimeters depth of produced water and positioned to the south geographical side, can treat produced water in an amount of 3 to 4 liters per
I2.6 Electrochemical Oxidation for PFAS Destruction
I2.6 Electrochemical Oxidation for PFAS Destruction
Orren Schneider – Aclarity LLC
Electrochemical systems have been shown to degrade and destroy compounds like PFAS, 1,4-Dioxane, and pharmaceuticals and personal care products (PPCPs), often mineralizing them to carbon dioxide (in the case of organic carbon) or to their constituent elements (nitrogen, fluoride, chlorine, etc.). This presentation will be an overview of electrochemistry, how it fits in the continuum of advanced oxidation processes, and how it can be applied for the destruction of PFAS and other emerging contaminants in several matrices. Data showing destruction of these contaminants using Aclarity’s commercial technology, as well as impacts of system flow rates, applied voltages and amperage, and type of electrodes, will be discussed.
I2.5 You’ve Got PFAS. How to Prepare, Dispose and Respond
I2.5 You've Got PFAS. How to Prepare, Dispose and Respond
Nick Palatiello – Barr
Per- and polyfluoroalkyl substances (PFAS) are emerging contaminants of concern in soil, groundwater and drinking water systems. PFAS releases have the potential to impact water supplies and are a challenge to capture and remove. Due to their chemical properties and widespread use, PFAS typically have multiple source areas and can be ubiquitous in most urban areas. For the utility industry, links and liability to the issue is through the training and use of Aqueous Film-Forming Foam (AFFF) concentrates and laydown yards which store wires which are coated in the compound. Some coal fired power plants have used AFFF either in training or for fire suppression of their coal piles for the simple fact that AFFF is extremely effective. In addition, potential liability can be from the leaching of wires that have been coated in PFAS. This presentation will provide information on some tools and approaches from simple to complex on how a facility can identify what PFAS may be associated with their use and where it has migrated based on Barr’s nearly 20 years of PFAS investigation including case studies from refining and industrial sites. This presentation will discuss how to inventory current and legacy supply of AFFF containing PFAS and replacement and disposal options. Attendees will leave the short presentation with an understanding of the complexity of the chemistry as well as an idea for approaches to audit current PFAS risk and prepare in the event of a regulatory inquiry.
Co-Author: Ward Swanson, Barr Engineering Co.
I3.6 New Ultra-trace level silica analyzer for online monitoring of silica in Boiler water in Power Plant
I3.6 New Ultra-trace level silica analyzer for online monitoring of silica in Boiler water in Power Plant
Andrew Xie – Thermo Fisher Scientific
Boiler water and ultrapure water are widely used in various industries, such as power plants, oil & gas, and semiconductor plants. Trace contaminants such as silica can have a critical impact on essential assets, such as causing deposits/corrosion on boiler, heat exchangers and turbines.
The Orion 8030cX Silica Analyzer developed by Thermo Fisher Scientific answers the need with direct, accurate online monitoring of silica in real time to prevent built-up, improve energy efficiency and maximize uptime. It offers superior accuracy, reliable operation, automated features and intuitive user interface to protect valuable assets and ensure safe power generation. It combines a patented fluid delivery system with optimized reagent chemistry to improve silica detection limit to sub ppb level. It delivers accurate and precise results across a wide analysis range, from 0-5000 µg/L. The improved reagent chemistry minimizes common interferences from phosphate and lasts longer. Consuming only about 200 µL of reagent per test, the new analyzer can continuously monitor unattended for up to 100 days while reducing chemical waste. The Orion 8030cX Silica Analyzer features state-of-the-art automation (such as automated calibration, validation and cleaning), advanced intuitive software, intelligent system diagnostics and alert notifications that reduce manual intervention and maintenance. It has been tested in various power plants to outperform existing silica analyzers.
I3.3 Long-Term Membrane Performance using HOD UV for Dechlorination and or Disinfection
I3.3 Long-Term Membrane Performance using HOD UV for Dechlorination and or Disinfection
Dennis Bitter – Atlantium
Plant Bowen installed the Hydro-Optic UV water treatment technology to improve the overall quality of reverse osmosis feed water. Since the installation Plant Bowen has been able to maintain the integrity of their feed water for the boiler and steam cycle, ensuring production and quality levels necessary for the facility to operate efficiently. This presentation will detail the long-term membrane performance with the continuous use of the HOD UV technology at Plant Bowen and other sites (including sites that installed the HOD UV).
What is the desired UV dose to dechlorinate the water to non detect?
If chlorine is not added in the front of the water treatment plant, can the HOD UV disinfect the water (eliminate biocides)?
Can the HOD UV be used on Cooling water?
I. Issues, Trends and Treatment Alternatives of Environmental Liability Associated with PFAS
A8.2 Issues, Trends and Treatment Alternatives of Environmental Liability Associated with PFAS
Fred Olivari – EA Engineering
. In response to increased public awareness of the potential threat PFAS in drinking water supplies pose to humans, more than 15 state regulatory agencies have published PFAS criteria for environmental media. EA will make a presentation that will highlight some of these challenges faced by those impacted by contaminants of emerging concern (e.g., per- and polyfluoroalkyl substances [PFAS]), and discuss how we are working with our clients to address them. We will review best practices as well as emerging trends and tier anticipated impact.
The presentation will:
• Summarize the current and anticipated future applicable state and Federal PFAS regulations and requirements.
• Define best practices and ways to identify PFAS and Emerging Contaminants Risk and select remedial actions at railroad facilities and properties.
• Provide an overview of recent high-profile PFAS liabilities nationwide and how this could set precedent for future regulatory enforcement or litigation in the utility industry.
• Provide a brief overview of the PFAS Inventory/Prioritization process and how it could be tailored to provide risk-mitigation to the rail industry.
PAST SPEAKERS at EUEC 2019, 2018 & 2017
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