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Articles 6211 - 6240 of 52423
Full-Text Articles in Entire DC Network
Comparison Of The Concentrations Of Ree & Lithium In Coal Ash Collected From Impoundments In The Southeastern United States, Kalyn Tew, Rona Donahoe
Comparison Of The Concentrations Of Ree & Lithium In Coal Ash Collected From Impoundments In The Southeastern United States, Kalyn Tew, Rona Donahoe
World of Coal Ash Proceedings
COMPARISON OF THE CONCENTRATION OF REE & LITHIUM IN COAL ASH COLLECTED FROM IMPOUNDMENTS IN THE SOUTHEASTERN UNITED STATES Authors Mrs. Kalyn Tew - United States - University of Alabama Dr. Rona Donahoe - United States - University of Alabama Abstract This study compares REE, REE+ and Li concentrations in coal ash (N>350) collected from ten impoundments in the southeastern United States. Historical data (N=170) was compiled from 8 power plants. New samples (N=180) were collected from 8 impoundments, then digested (ASTM D6357) and analyzed via ICP-OES (EPA 200.8) for REE+ and Li concentrations. The average REE content for …
Pore Solution-Based Innovative Approach For Evaluating The Effectiveness Of Conventional And Alternative Scms To Mitigate Asr, Anol Mukhopadhyay
Pore Solution-Based Innovative Approach For Evaluating The Effectiveness Of Conventional And Alternative Scms To Mitigate Asr, Anol Mukhopadhyay
World of Coal Ash Proceedings
Pore Solution-Based Innovative Approach for Evaluating the Effectiveness of Conventional and Alternative SCMs to Mitigate ASR Authors Prof. Anol Mukhopadhyay - United States - Texas A&M University Abstract Current ASR tests such as ASTM C 1293 and C 1567 are not sensitive to detecting FA soluble alkali's effect on ASR expansion due to alkali boosting test conditions. Moreover, the current empirical prediction models (e.g., chemical index and extended chemical index) to determine the fly ash dosage for mitigating ASR ignore the role of fly ash soluble alkali contribution on ASR evaluation. The main objective of this study was to develop …
Compressive Strengths Of Various Mortar Mixes Containing Synthetic Lightweight Aggregate, Chris Swan
Compressive Strengths Of Various Mortar Mixes Containing Synthetic Lightweight Aggregate, Chris Swan
World of Coal Ash Proceedings
Compressive Behavior of Various Mortar Mixes Containing Synthetic Lightweight Aggregate Authors Prof. Chris Swan - United States - Tufts University Abstract This paper presents strength and small strain results of mortar concrete mixes, some of which contained synthetic lightweight aggregates (SLAs) – a construction material created from waste plastic and coal fly ash. Twelve mortar mixes were created using a sand-size aggregate that satisfied ASTM’s standard C33 gradation for fine aggregate; i.e., aggregate particles ≤ 4.75mm in size. A 3-by-4 matrix for mix designs was developed; i.e., three different water-to-cement (w/c) ratios of 0.45, 0.55, and 0.65 were used to …
Variable Rate Cone Penetration Testing In Hydraulically Placed Fly Ash Deposits, Andrew Fuggle, Longde Jin, Mark Taylor
Variable Rate Cone Penetration Testing In Hydraulically Placed Fly Ash Deposits, Andrew Fuggle, Longde Jin, Mark Taylor
World of Coal Ash Proceedings
Variable Rate Cone Penetration Testing in Hydraulically Placed Fly Ash Deposits Authors Mr. Andrew Fuggle - United States - WSP USA, Inc. Mr. Longde Jin - United States - WSP USA, Inc. Mr. Mark Taylor - United States - WSP USA, Inc. Abstract Cone Penetration Testing (CPT) is widely used for in-situ characterization of hydraulically placed man-made materials, such as mine tailings and fly ash. These materials are not typical natural soils and are often silt-sized and in a very loose state. Standard methods of interpreting CPT tests developed from either clays or sands are generally inadequate for these materials. …
Critical Mineral Relationships In Global Coal Ash, Denise Levitan
Critical Mineral Relationships In Global Coal Ash, Denise Levitan
World of Coal Ash Proceedings
Critical Mineral Relationships in Global Coal Ash Authors Dr. Denise Levitan - United States - United States Geological Survey Abstract Coal ash can be enriched in critical minerals (as defined by the U.S. Geological Survey’s 2022 list), including rare earth elements (REEs), relative to many other geologic materials. This study compiled literature-reported chemical data from approximately 600 coal-fired power plant ash samples for a meta-analysis. All samples had reported concentration measurements for each of the lanthanides and yttrium (collectively termed REY), but the availability of additional chemical parameters, information about feed coals, and plant specifications varied. Initial analysis of ash …
Electrical Leak Location (Ell) – Case Study, Andrew Colby
Electrical Leak Location (Ell) – Case Study, Andrew Colby
World of Coal Ash Proceedings
Electrical Leak Location (ELL) - Case Study Authors Mr. Andrew Colby - United States - Bunnell Lammons Engineering Abstract ELL technical advancements through experience with trial efforts to evaluate the limits and effectiveness of the technology in an ever-growing industry requiring containment. This presentation will detail a specific project by case study to focus directly upon the issues that face many utility (coal ash) sites throughout the country. A known leak in containment can present many challenges and ELL may be the solution. This case study shows the capabilities and accuracy of the ELL technology used to deal with complicated …
Multi-Faceted Approach For Ccr Pond Dewatering And Depressurization – A Case Study, Cleveland Tarp, Christopher Jones, Shawn Coughlin, Tom Holden
Multi-Faceted Approach For Ccr Pond Dewatering And Depressurization – A Case Study, Cleveland Tarp, Christopher Jones, Shawn Coughlin, Tom Holden
World of Coal Ash Proceedings
Multi-faceted approach for CCR Pond dewatering and depressurization-A Case Study Authors Mr. Cleveland Tarp - United States - Haley & Aldrich Inc. Mr. Christopher Jones - United States - Haley & Aldrich Inc. Mr. Shawn Coughlin - United States - Keller Mr. Tom Holden - United States - Haley & Aldrich, Inc. Abstract CCR Pond closure by removal can present a wide range of challenges, with CCR dewatering and depressurization sometimes being the greatest. CCR ponds built over pre-existing stream beds and located in close proximity to water bodies can be particularly difficult to dewater and present stability and safety …
Integrating The Geochemical Conceptual Site Model And Advanced Statistics Evaluate Remedy Response And Prepare For Adaptive Management, Shannon Zahuranec, Allie Wyman-Feravich, James Jonas, Tom Meuzelaar
Integrating The Geochemical Conceptual Site Model And Advanced Statistics Evaluate Remedy Response And Prepare For Adaptive Management, Shannon Zahuranec, Allie Wyman-Feravich, James Jonas, Tom Meuzelaar
World of Coal Ash Proceedings
Integrating the Geochemical Conceptual Site Model and Advanced Statistics to Evaluate Remedy Response and Position for Adaptive Management Authors Ms. Shannon Zahuranec - United States - Life Cycle Geo, LLC Dr. Allie Wyman-Feravich - United States - Life Cycle Geo, LLC Mr. James Jonas - United States - Life Cycle Geo, LLC Dr. Tom Meuzelaar - United States - Life Cycle Geo, LLC Abstract As the utility industry progresses from evaluation of coal combustion residual (CCR) groundwater for corrective action towards implementation of the selected remedy, the focus of monitoring activities shifts from groundwater characterization to remedy performance. A generalized …
Ash Benefication In Road Construction Materials, Cyril Attwell, Kelley Reynolds-Clausen
Ash Benefication In Road Construction Materials, Cyril Attwell, Kelley Reynolds-Clausen
World of Coal Ash Proceedings
Ash Beneficiation in Road Construction Materials. Authors Mr. Cyril Attwell - South Africa - ARC Innovations Dr. Kelley Reynolds-Clausen - South Africa - Eskom Holdings SOC LTD Abstract Kelley Anne Reynolds-Clausen1 and Cyril N Attwell2 1Eskom Research, Testing and Demonstration, Eskom Holdings SOC Ltd, South Africa. [email protected]. 2ARC Innovations, 83 Bonnyvale Road, .Norton Home Estates, Gauteng, South Africa. [email protected] Keywords: Alkali-activation, coal ash, road construction Road construction traditionally involves the use of virgin material from borrow pits for the development of the base and subbase stabilisation layers. This is often a costly exercise and requires extra management for the project. …
Reevaluation Of The Groundwater Monitoring Paradigm – Proof Of Concept Study, Jacob Gruzalski, Benjamin Adams, Bruce Hensel
Reevaluation Of The Groundwater Monitoring Paradigm – Proof Of Concept Study, Jacob Gruzalski, Benjamin Adams, Bruce Hensel
World of Coal Ash Proceedings
Reevaluation of the Groundwater Monitoring Paradigm - Proof of Concept Study Authors Mr. Jacob Gruzalski - United States - Environmental Standards Mr. Benjamin Adams - United States - Environmental Standards Mr. Bruce Hensel - United States - Electric Power Research Institute Abstract Groundwater monitoring programs associated with coal combustion product (CCP) landfills and impoundments are long-term endeavors, continuing during active operation and for a post-closure period of 30 years or longer. This long-term groundwater monitoring represents a substantial financial expenditure by electrical power producers, with the bulk of the expenses being associated with the physical collection of the groundwater samples. …
Ccr Landfill Leachate Treatment Considerations, William Kennedy
Ccr Landfill Leachate Treatment Considerations, William Kennedy
World of Coal Ash Proceedings
CCR Landfill Leachate Treatment Considerations Authors Mr. William Kennedy - United States - Stantec Abstract The US Environmental Protection Agency (EPA) proposed new effluent limitations guidelines (ELGs) for coal combustion residual (CCR) leachate in March 2023. In this proposed rule, definitions of applicability and implementation deadlines were outlined in addition to establishing numeric limitations for arsenic and mercury. The proposed ELGs established mercury and arsenic numeric limitations based on chemical precipitation but EPA also queried the public whether more advanced treatment should be required as the technology basis. Stantec will discuss the status of the 2023 proposed leachate ELGs and …
Emerging Regulations And Operational Preparedness – Key Areas To Ensure Future Success For 2024 Elgs, Joseph Woodley, Morgan French
Emerging Regulations And Operational Preparedness – Key Areas To Ensure Future Success For 2024 Elgs, Joseph Woodley, Morgan French
World of Coal Ash Proceedings
Emerging Regulations and Operational Preparedness – Key Areas to Ensure Future Success for 2023 ELGs Authors Mr. Joseph Woodley - United States - UCC Environmental Mr. Morgan French - United States - UCC Environmental Abstract This paper describes key areas for coal fired utilities to evaluate in an effort to optimize near-term daily operations and ensure operational readiness for potential regulatory changes that could impact existing processes, treatment technologies, and the ability to discharge certain waste streams. The topics covered include those specifically identified in EPA’s 2023 Effluent Limitation Guidelines Prepublication Rule along with a number of steps your organization …
Evaluating Ccr Unit Closure Options – Closure In Place Or Closure By Removal, Rick Buffalini
Evaluating Ccr Unit Closure Options – Closure In Place Or Closure By Removal, Rick Buffalini
World of Coal Ash Proceedings
Evaluating Surface Impoundments Closure by Removal and Closure in Place Options Authors Mr. Rick Buffalini - United States - Civil & Environmental Consultants, Inc. Abstract The USEPA interpretation of the 2015 CCR Regulations is that closure in place requires that the CCR not be in contact with groundwater, that post-closure infiltration of groundwater from the subsurface be eliminated, and that free liquids be eliminated from the CCR. As a result, owners of surface impoundments that had previously intended to close in place are now evaluating other options to dewater the CCR or closure by removal. This presentation will address evaluations …
Water Management And Construction Impacts, Christine Harris
Water Management And Construction Impacts, Christine Harris
World of Coal Ash Proceedings
Water Management and Construction Impacts Authors Mrs. Christine Harris - United States - Groundwater Treatment and Technology, LLC (GWTT) Abstract When closing an ash impoundment there are many steps in the process. Understanding the relationship between water management and civil construction is important. In most cases, before civil construction can begin, free liquids must be removed from the impoundment. Usually, the water removed must be treated before it can be discharged. The success (or failure) of these two activities can have an impact on the ability of the civil construction contractor to perform the work. The responsibility for dewatering is …
Approaches For Low-Impact Groundwater Remediation, Tim Grant, Kathy Webb, Tammy Jett, Bill Miller
Approaches For Low-Impact Groundwater Remediation, Tim Grant, Kathy Webb, Tammy Jett, Bill Miller
World of Coal Ash Proceedings
Approaches for Low-Impact Groundwater Remediation Authors Mr. Tim Grant - United States - SynTerra Corporation Mrs. Kathy Webb - United States - SynTerra Corporation Mrs. Tammy Jett - United States - SynTerra Corporation Mr. Bill Miller - United States - SynTerra Corporation Mr. Bruce Hensel - United States - Electric Power Research Institute Abstract Large-scale groundwater remediation systems can have unintended, negative impacts on the local ecosystem and broader environment. Those impacts could result from greenhouse gas emissions, ecosystem disturbance, and groundwater depletion during remediation system implementation and operation, among others. Low-impact groundwater remediation approaches may provide equivalent or superior …
Evolution In Geosynthetics Starts With Utilizing Data, Greg Pignataro, Evan Bao
Evolution In Geosynthetics Starts With Utilizing Data, Greg Pignataro, Evan Bao
World of Coal Ash Proceedings
Evolution in Geosynthetics Starts with Utilizing Data Technology Authors Mr. Greg Pignataro - United States - GeoCAAB Mr. Evan Bao - United States - GeoCAAB Abstract This paper focuses on the automation of the geosynthetics installation QA/QC process by way of software integration in the field data entry and office data management. Technology is essential to the advancement of geosynthetic installations, especially data application. In its most basic form, data application is a means of gathering, storing, and utilizing information more easily than its predecessor(s). If implemented appropriately, data application technology improves process efficiency. Users and downstream stakeholders of process …
Producing Alternative Scms Through Carbon Utilization, Dhwanil Trivedi, Dante Luu
Producing Alternative Scms Through Carbon Utilization, Dhwanil Trivedi, Dante Luu
World of Coal Ash Proceedings
Producing a High-Performance Low Carbon ASCM using Carbon Utilization Technology Authors Mr. Dhwanil Trivedi - United States - Carbon Upcycling Technologies Inc. Mr. Dante Luu - Canada - Carbon Upcycling Technologies Inc. Abstract In the current climate crisis, there is significant pressure on the cement and concrete industry to achieve net zero by 2050. Carbon Upcycling Technologies (CUT) has developed a patented technology to upcycle industrial byproducts into quality Alternative Supplementary Cementitious Materials (ASCM). One prominent Supplementary Cementitious Material (SCM) is Fly Ash (FA). However, the production of fresh fly ash is decreasing as companies move towards more environmentally friendly …
Life Cycle Impacts Of Harvested Coal Ash Used As Cement Replacement In Concrete, Sabrina Bradshaw, Craig Benson, Tuncer Edil
Life Cycle Impacts Of Harvested Coal Ash Used As Cement Replacement In Concrete, Sabrina Bradshaw, Craig Benson, Tuncer Edil
World of Coal Ash Proceedings
Life Cycle Impacts of Using Harvested Coal Ash as a Cement Replacement in Concrete Authors Ms. Sabrina Bradshaw - United States - University of Wisconsin-Madison Dr. Craig Benson - United States - University of Wisconsin-Madison Dr. Tuncer Edil - United States - University of Wisconsin-Madison Abstract Environmental benefits of using harvested coal ash as supplementary cementitious material (SCM) in concrete were evaluated using life cycle assessment. Global warming potential (GWP), energy consumed, and water used to harvest and process ashes from landfills and impoundments to meet ASTM C618 SCM criteria were quantified and compared with fresh ash. The life cycle …
Ccr Rule Utility Perspective 2024 And Beyond, Harold Register, Daniel Chartier
Ccr Rule Utility Perspective 2024 And Beyond, Harold Register, Daniel Chartier
World of Coal Ash Proceedings
Coal Combustion Residuals Rule: Utility Perspective Looking at 2024 and Beyond Authors Mr. Harold Register - United States - Consumers Energy Mr. Daniel Chartier - United States - Utility Solid Waste Activities Group (USWAG) Abstract Since the federal Coal Combustion Residuals (CCR) rule was first promulgated in April 2015, the self-implementing framework of the rule has undergone numerous changes. Initially, the Water Infrastructure Improvements for the Nation (WIIN) Act was signed into law in December 2016 authorizing the United States Environmental Protection Agency (US EPA) to implement a federal CCR permit program through rulemaking when appropriated, and extending authority to …
Hydrogeologic Considerations For Measuring Background Concentrations Of Ccp Constituents In Groundwater, Jeffrey Frazier, Nathan Pavlick
Hydrogeologic Considerations For Measuring Background Concentrations Of Ccp Constituents In Groundwater, Jeffrey Frazier, Nathan Pavlick
World of Coal Ash Proceedings
Hydrogeologic Considerations for Measuring Background Concentrations of CCR Constituents in Groundwater Authors Mr. Jeffrey Frazier - United Kingdom - WSP USA Inc Mr. Nathan Pavlick - United States - WSP USA Inc Abstract Current and historical coal-fired power plants are often situated along the margin of major water bodies to support the plants’ water requirements. Accordingly, coal combustion product (CCP) management units are often situated along the margin of a major river or reservoir, representing a hydrogeologic zone of groundwater discharge for both shallow and relatively deep groundwater sources. A flow-net-based conceptual model for groundwater flow and discharge in this …
Understanding The Stratigraphy Of Fluvial Systems And Why It Is Essential To Compliance, Colin Plank, Mike Shultz, James Feild, Wayne Weber
Understanding The Stratigraphy Of Fluvial Systems And Why It Is Essential To Compliance, Colin Plank, Mike Shultz, James Feild, Wayne Weber
World of Coal Ash Proceedings
Understanding The Stratigraphy of Fluvial Systems and Why it is Essential to Compliance With The Legacy Rule Revisions to CCR Regulations. Authors Mr. Colin Plank - United States - Burns & McDonnell Dr. Mike Shultz - United States - Burns & McDonnell Dr. James Feild - United States - Burns & McDonnell Mr. Wayne Weber - United States - Burns & McDonnell Abstract The “Legacy Rule” revisions of Combustible Coal Residuals (CCR) regulations for inactive electric utility surface impoundments and CCR management units and the aggressive timelines associated with compliance makes efficient evaluation of potential groundwater impacts critical for program …
Alternate Liner Demonstration (Ald) For Ccr Surface Impoundment, John Seymour, Mike Coram, Clinton Carlson, Isaiah Vaught
Alternate Liner Demonstration (Ald) For Ccr Surface Impoundment, John Seymour, Mike Coram, Clinton Carlson, Isaiah Vaught
World of Coal Ash Proceedings
Alternate Liner Demonstration (ALD) for CCR Surface Impoundment Authors Mr. John Seymour - United States - Geosyntec Consultants, Inc. Mr. Mike Coram - United States - Geosyntec Consultants, Inc. Dr. Clinton Carlson - United States - Geosyntec Consultants, Inc. Mr. Isaiah Vaught - United States - Geosyntec Consultants, Inc. Mr. Jesse Varsho - United States - Geosyntec Consultants, Inc. Abstract An alternate liner demonstration was prepared for a large (300+ acres) CCR surface impoundment (SI) in accordance with the Coal Combustion Residuals (CCR) Rule [40CFR257.71(d)]. The SI had a natural glacial clay bottom liner and compacted clay side liner (containment …
Leaching Behaviors Of Constituents From Coal Combustion Residuals, Charles Hostetler, Kacey Garber, Lindsey Hawksworth
Leaching Behaviors Of Constituents From Coal Combustion Residuals, Charles Hostetler, Kacey Garber, Lindsey Hawksworth
World of Coal Ash Proceedings
Leaching Behaviors of Constituents from Coal Combustion Residuals Authors Dr. Charles Hostetler - United States - SCS Engineers Ms. Kacey Garber - United States - SCS Engineers Ms. Lindsey Hawksworth - United States - SCS Engineers Abstract Understanding leaching behaviors of Appendix III and IV constituents from CCR units as a function of time is an important aspect of remedy selection and corrective action design. This is particularly important in regulated or legacy units where CCR removal is not feasible and infiltration or intermittent groundwater contact with CCR has the potential to mobilize constituents into the groundwater system. It is …
Ponded Ash Beneficial Use Investigation And Bid Solicitation, Adam Poffenberger
Ponded Ash Beneficial Use Investigation And Bid Solicitation, Adam Poffenberger
World of Coal Ash Proceedings
Ponded Ash Beneficial Use Investigation and Bid Solicitation Authors Mr. Adam Poffenberger - United States - AECOM Abstract In response to federal and state regulations pertaining to disposal of ponded coal ash, development of site investigations and data collection to facilitate development of bid solicitation packages for coal ash beneficial use as an alternative to landfilling has gained traction. Several considerations should be considered to ensure that the site investigation is completed safely and supports the collection of pertinent information for beneficial use vendors to assess the quality of ash and determine viability of beneficiation technologies and/or processes to produce …
Supply Chain Challenges Impacting Ccr Groundwater Monitoring, Jennifer Gable, Rock Vitale, Amanda Cover
Supply Chain Challenges Impacting Ccr Groundwater Monitoring, Jennifer Gable, Rock Vitale, Amanda Cover
World of Coal Ash Proceedings
Supply Chain Challenges Impacting CCR Groundwater Monitoring Authors Ms. Jennifer Gable - United States - Environmental Standards Mr. Rock Vitale - United States - Environmental Standards Ms. Amanda Cover - United States - Environmental Standards Abstract CCR groundwater monitoring programs require thoughtful contracting and management of qualified and accredited laboratories to generate high quality data for a variety of assessment and compliance purposes. The capacity available within the commercial laboratory market has been (and continues to be) severely stressed since the onset of COVID-19. As a result of the pandemic, many qualified laboratory analysts and/or key management and QA personnel …
Interim Protection Of Ccr Landfill Bottom Liner System – Case Study, Jarrett Beach, Kevin Resnik, Steven Turner
Interim Protection Of Ccr Landfill Bottom Liner System – Case Study, Jarrett Beach, Kevin Resnik, Steven Turner
World of Coal Ash Proceedings
INTERIM PROTECTION OF CCR LANDFILL BOTTOM LINER SYSTEM – CASE STUDY Authors Mr. Jarrett Beach - United States - LG&E and KU Mr. Kevin Resnik - United States - GAI Consultants, Inc. Mr. Steven Turner - United States - Tetra Tech, Inc. Abstract Due to multiple factors (beneficial use, alternate fuel sources, planned and unplanned outages, etc.), Coal Combustion Residual (CCR) landfills are seeing variable and unpredictable rates of CCR available for disposal. This creates construction and operational challenges for the Owner. These challenges are especially critical when a new cell is built or recently expanded, leaving acres of open …
Ccr Regulations Drive Uncertainty For Beneficial Use Projects Past And Present, Susan Jackson, Martha Thomsen, Dawn Santoianni
Ccr Regulations Drive Uncertainty For Beneficial Use Projects Past And Present, Susan Jackson, Martha Thomsen, Dawn Santoianni
World of Coal Ash Proceedings
CCR Regulations Drive Uncertainty for Beneficial Use Projects Past and Present Authors Ms. Susan Jackson - United States - Haley & Aldrich Inc. Mrs. Martha Thomsen - United States - Baker Botts LLP Ms. Dawn Santoianni - United States - Haley & Aldrich Inc. Abstract EPA’s recent position on beneficial use (BU) in proposed Part A and Part B decisions, as well as the agency’s policy positions and proposed changes to the CCR regulations articulated in the agency’s Proposed Legacy Rule, have created uncertainty and concern for utilities and ash marketers. Understanding how the agency distinguishes between legitimate BU projects …
Aquifer Characterization Techniques To Evaluate Coal Combustion Residuals Sources, Vincent Buening, Wenbo Xie
Aquifer Characterization Techniques To Evaluate Coal Combustion Residuals Sources, Vincent Buening, Wenbo Xie
World of Coal Ash Proceedings
Aquifer Characterization Techniques to Evaluate Coal Combustion Residuals Sources Authors Mr. Vincent Buening - United States - TRC Mr. Wenbo Xie - United States - TRC Abstract Many of the constituents monitored in groundwater for CCR Rule compliance occur naturally in the environment. Sorting through natural and anthropogenic sources often requires additional in-depth analysis beyond the routine groundwater monitoring program. TRC’s practical application of several aquifer characterization tools and strategies can be used to evaluate potential sources of CCR constituents in groundwater. These strategies include the use of stable isotopes such as boron (δ11B), lithium (δ7Li), and strontium (δ87Sr); age …
Coal Combustion Product Utilization In Thailand, Chattrawadee Netwong, Nawamonwan Sirima, Chalermphol Bunsong, Umaporn Thong-Eiam
Coal Combustion Product Utilization In Thailand, Chattrawadee Netwong, Nawamonwan Sirima, Chalermphol Bunsong, Umaporn Thong-Eiam
World of Coal Ash Proceedings
Coal Combustion Product Utilization in Thailand Authors Ms. Chattrawadee Netwong - Thailand - Electricity Generating Authority of Thailand (EGAT) Ms. Nawamonwan Sirima - Thailand - Electricity Generating Authority of Thailand (EGAT) Mr. Chalermphol Bunsong - Thailand - Electricity Generating Authority of Thailand (EGAT) Ms. Umaporn Thong-Eiam - Thailand - Electricity Generating Authority of Thailand (EGAT) Abstract In recent years, the coal combustion product (CCP) industry has gained significant attention worldwide as a sustainable solution to both environmental challenges and economic opportunities. In Thailand, the management and utilization of CCPs such as fly ash, bottom ash, and FGD gypsum have emerged …
Paper_Horizontal Vibrating Wire Piezometer Installation – A New Direction In Geotechnical Evaluation, Dan Ombalski, Brian Shinall, Michael Lubrecht, David Bardsley
Paper_Horizontal Vibrating Wire Piezometer Installation – A New Direction In Geotechnical Evaluation, Dan Ombalski, Brian Shinall, Michael Lubrecht, David Bardsley
World of Coal Ash Proceedings
HORIZONTAL VIBRATING WIRE PIEZOMETER INSTALLATION – A NEW DIRECTION IN GEOTECHNICAL EVALUATION Authors Mr. Dan Ombalski - United States - Ellingson Mr. Brian Shinall - United States - Ellingson Mr. Michael Lubrecht - United States - Ellingson Mr. David Bardsley - United States - Ellingson Mr. Dave Rugh - United States - GSI Environmental Abstract Coal combustion residuals (CCR) within basins or impoundment can become unstable during construction and mitigation activities such as building floating roads, bridges, or dewatering activities. One way to evaluate the stability of the CCR materials is to monitor pore water pressure utilizing vibrating wire piezometers …