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Articles 371641 - 371670 of 5168303
Full-Text Articles in Entire DC Network
New Applications For Beneficial Reuse Of Coal Combustion Ash, Anne Oberlink, Tom Robl, Bob Jewell
New Applications For Beneficial Reuse Of Coal Combustion Ash, Anne Oberlink, Tom Robl, Bob Jewell
World of Coal Ash Proceedings
New Applications for Beneficial Reuse of Coal Combustion Ash Authors Ms. Anne Oberlink - United States - University of Kentucky Center for Applied Energy Research Dr. Bob Jewell - United States - University of Kentucky Center for Applied Energy Research Dr. Thomas Robl - United States - University of Kentucky Center for Applied Energy Research Mr. Curtis Wilie - United States - Commonwealth Energy Technologies Mr. Jim Crenshaw - United States - Commonwealth Energy Technologies Mr. Scott Hoskins - United States - Commonwealth Energy Technologies Ms. Hailey Mattingly - United States - Office of Energy Policy, Commonwealth of Kentucky Abstract …
Application Of Carbon Nanotube Technology To Fly-Ash Based Geopolymer Concrete For Strength Development And Net-Zeros Aspect, Janell Prater, Young Hoon Kim
Application Of Carbon Nanotube Technology To Fly-Ash Based Geopolymer Concrete For Strength Development And Net-Zeros Aspect, Janell Prater, Young Hoon Kim
World of Coal Ash Proceedings
Application of carbon nanotube technology to fly-ash based geopolymer concrete for strength development and net-zeros aspect Authors Ms. Janell Prater - United States - University of Louisville Dr. Young Hoon Kim - United States - University of Louisville Abstract Fly ash is one of the viable options to reduce carbon emissions in the construction industry. As the construction industry is expected to consume 10% of the world's fresh water, water-conscious building materials is an essential technological development to lessen the impact of infrastructure on water security. Geopolymer concrete can be a solution to the construction industry in water-stressed regions. Geopolymerization …
Assessment Of Coal Fly Ash As A Thermal Energy Storage Material For Concentrating Solar Power, Megan Bellusci, Kiana Oos, Deborah Glosser, Drew Johnson
Assessment Of Coal Fly Ash As A Thermal Energy Storage Material For Concentrating Solar Power, Megan Bellusci, Kiana Oos, Deborah Glosser, Drew Johnson
World of Coal Ash Proceedings
Use of Unconventional Fly Ash as Sensible Particulate Thermal Energy Storage Materials for Concentrating Solar Power Authors Ms. Megan Bellusci - United States - Western Washington University Ms. Kiana Oos - United States - Western Washington University Dr. Deborah Glosser - United States - Western Washington University Mr. Drew Johnson - United States - Western Washington University Dr. Prannoy Suraneni - United States - University of Miami Abstract Coal fly ash is an attractive alternative to sintered bauxite proppants for sensible thermal energy storage (TES) in high-temperature (HT) direct absorbing receiver concentrating solar power (CSP) technology. These waste materials are …
Bioengineering Of A Plant System To Remove Arsenic And Cadmium And Sustainably Harvest Rare Earth Elements (Rees) From Industrial Byproducts, Edmaritz Hernandez Pagan, Colleen Doherty, Michael Kudenov
Bioengineering Of A Plant System To Remove Arsenic And Cadmium And Sustainably Harvest Rare Earth Elements (Rees) From Industrial Byproducts, Edmaritz Hernandez Pagan, Colleen Doherty, Michael Kudenov
World of Coal Ash Proceedings
Bioengineering of a Plant System to Remove Arsenic and Cadmium and Sustainably Harvest Rare Earth Elements (REEs) from Fly Ash. Authors Ms. Edmaritz Hernandez Pagan - United States - North Carolina State University Dr. Colleen Doherty - United States - North Carolina State University Dr. Michael Kudenov - United States - North Carolina State University Dr. Kanjana Laosuntisuk - United States - North Carolina State University Abstract Fly ash is a fine powder-like residue from coal combustion. It can be utilized for industrial applications like concrete production or disposed of in landfills. Many regulations are involved in the use and …
Example Application Of A Holistic Decision Support Tool Used For Selecting Corrective Actions At Coal Combustion Product Sites, Ari Lewis, John Kondziolka, Matt Biega, Egidio Tentori
Example Application Of A Holistic Decision Support Tool Used For Selecting Corrective Actions At Coal Combustion Product Sites, Ari Lewis, John Kondziolka, Matt Biega, Egidio Tentori
World of Coal Ash Proceedings
Example Application of a Holistic Decision Support Tool Used for Selecting Corrective Actions at Coal Combustion Product Sites Authors Ms. Ari Lewis - United States - Gradient Mr. John Kondziolka - United States - Gradient Mr. Matt Biega - United States - Gradient Dr. Egidio Tentori - United States - Gradient Dr. Qian Zhang - United States - Gradient Dr. Ishita Shrivastava - United States - Gradient Mr. Bruce Hensel - United States - Electric Power Research Institute Abstract Gradient developed a holistic decision support tool (HDST) for EPRI to support corrective action alternative assessments at coal combustion product (CCP) …
Fly Ash And Lime Stabilization Of Sewage Sludge- Changes To Phosphorous Solubility And Bioavailability, Yaniv Freiberg, Shahar Baram, Michael Borisover, Pinchas Fine
Fly Ash And Lime Stabilization Of Sewage Sludge- Changes To Phosphorous Solubility And Bioavailability, Yaniv Freiberg, Shahar Baram, Michael Borisover, Pinchas Fine
World of Coal Ash Proceedings
Fly Ash and Lime Stabilization of Sewage Sludge: Changes to Phosphorous Solubility and Bioavailability Authors Dr. Yaniv Freiberg - United States - University of Illinois at Urbana-Champaign Dr. Shahar Baram - Israel - Institute of Soil, Water, and Environmental Sciences, Volcani Center Dr. Michael Borisover - Israel - Institute of Soil, Water, and Environmental Sciences, Volcani Center Dr. Pinchas Fine - Israel - Institute of Soil, Water, and Environmental Sciences, Volcani Center Abstract Biosolids application to agricultural soils offers an alternative source of essential macro and micro plant nutrients that replace industrial products. In addition, the alkaline treatment of sludge …
How Sampling Methods Affect The Interpretation Of Groundwater Microbial Communities, Ann Ojeda, Natalia Malina, Elyssa Rivera, Shifat Monami
How Sampling Methods Affect The Interpretation Of Groundwater Microbial Communities, Ann Ojeda, Natalia Malina, Elyssa Rivera, Shifat Monami
World of Coal Ash Proceedings
How sampling methods affect the interpretation of groundwater microbial communities Authors Dr. Ann Ojeda - United States - Auburn University Dr. Natalia Malina - United States - Auburn University Ms. Elyssa Rivera - United States - Auburn University Ms. Shifat Monami - United States - Auburn University Dr. Laura Bilenker - United States - Auburn University Dr. Ming-Kuo Lee - United States - Auburn University Abstract The basis of bioremediation in a groundwater setting is to activate biogeochemical processes that impact the behavior of compounds or elements of interest. For example, biogeochemical processes can stimulate element sequestration in a solid …
Relationship Of Energy And The Effect On Coal Combustion Residual (Ccr) Behavior, Tyler Hitt, Harvey Upchurch, Will Rex
Relationship Of Energy And The Effect On Coal Combustion Residual (Ccr) Behavior, Tyler Hitt, Harvey Upchurch, Will Rex
World of Coal Ash Proceedings
Relationship of Energy and the Effect on Coal Combustion Residual (CCR) Behavior: A Study of Moisture-Density Relationships Authors Mr. Tyler Hitt - United States - TTL, Inc. Mr. Harvey Upchurch - United States - TTL, Inc. Mr. Will Rex - United States - TTL, Inc. Abstract The determination of maximum dry density and optimum moisture content using a standard compactive energy for soils is defined in ASTM D698. Coal combustion residuals (CCR) are commonly utilized for beneficial re-use material such as replacement of structural fill, incorporation into structural concrete mixes or placed into permanent closure in an approved facility. Utilizing …
Remote Characterization Of Impounded Ash To Identify Economic Harvesting Opportunities, Krish Mehta, Manju Murugesu
Remote Characterization Of Impounded Ash To Identify Economic Harvesting Opportunities, Krish Mehta, Manju Murugesu
World of Coal Ash Proceedings
Remote characterization of impounded ash Authors Mr. Krish Mehta - United States - Stanford Dr. Manju Murugesu - United States - Stanford Abstract The gradual shutdown of coal power plants has led to a decrease in ash production, prompting an increased interest in harvesting ash from landfills for use as a Supplementary Cementitious Material (SCM) in concrete. The viability and cost-effectiveness of this hinge on various factors, including the location, scale, and chemical composition of the ash impoundments. Key determinants such as carbon content (Loss on Ignition, LOI), the presence of Flue-Gas Desulfurization (FGD) waste (e.g., gypsum), moisture levels, and …
Swell Compression Testing On Kaolinite Gypsum Systems, Kelden Andrews, Tom Robl, Tristana Duvallet, Bob Jewell
Swell Compression Testing On Kaolinite Gypsum Systems, Kelden Andrews, Tom Robl, Tristana Duvallet, Bob Jewell
World of Coal Ash Proceedings
Swell compression testing on Kaolinite Gypsum Systems Authors Mr. Kelden Andrews - United States - University of Kentucky Center for Applied Energy Research Dr. Thomas Robl - United States - University of Kentucky Center for Applied Energy Research Dr. Tristana Duvallet - United States - University of Kentucky Center for Applied Energy Research Dr. Bob Jewell - United States - University of Kentucky Center for Applied Energy Research Mr. Ewen Floch - France - Polytech Dijon Abstract The understanding of soil swell mechanics and mechanisms is critical to both the treatment of soils for stability as well as site selection …
Understanding The Impact Of Fly Ash Particle Size On Reactivity And Strength Development, Mahmod Yahya, Lisa Burris
Understanding The Impact Of Fly Ash Particle Size On Reactivity And Strength Development, Mahmod Yahya, Lisa Burris
World of Coal Ash Proceedings
Understanding the Impact of Fly Ash Particle Size on Reactivity and Strength Development Authors Mr. Mahmod Yahya - United States - The Ohio State University Dr. Lisa Burris - United States - The Ohio State University Abstract In the quest for sustainable and efficient construction materials, the role of industrial by-products like fly ash in concrete enhancement has garnered substantial attention. With decreasing coal power production, supplies of virgin ash are declining, and harvested ashes are being increasingly utilized. But harvested ash sources often exceed ASTM C618 fineness limits, having greater quantities of coarse materials, and so currently require significant …
Paper_Functionality Of Coal Fly Ash In Mortars After Rare Earth Element Recovery, Rahima Tufail, Sai Praneeth, Sarah Brownlee, Timothy Dittrich
Paper_Functionality Of Coal Fly Ash In Mortars After Rare Earth Element Recovery, Rahima Tufail, Sai Praneeth, Sarah Brownlee, Timothy Dittrich
World of Coal Ash Proceedings
Rare earth elements (REEs) are a set of 17 elements (lanthanides plus scandium and yttrium) that are not found concentrated in large ore deposits in nature. There has been huge growth in the amount of technology that uses REEs due to their diverse properties, but REEs are difficult to mine and expensive to separate. The global supply of REEs is largely controlled by a single country (China; >95%), and the lack of a domestic supply has been identified as a vulnerability to U.S. economic security. To alleviate this vulnerability, economical extraction methods from traditionally overlooked domestic feedstocks, such coal fly …
Fly Ash-Based Geopolymer: Water, Curing Temperature, And Cao Content Effects On Microstructure And Compressive Strength, Lujain Salem, Young Hoon Kim
Fly Ash-Based Geopolymer: Water, Curing Temperature, And Cao Content Effects On Microstructure And Compressive Strength, Lujain Salem, Young Hoon Kim
World of Coal Ash Proceedings
Fly Ash-based Geopolymer: Water, Curing Temperature, and CaO Content Effects on Microstructure and Compressive Strength Salem, Lujain and Young Hoon Kim Civil and Environmental Engineering, University of Louisville, Louisville, KY 40208 KEYWORDS: High-calcium oxide Content, Geopolymer, microstructure, water content, curing temperature ABSTRACT Geopolymer, an emerging alternative to Portland cement-based concrete, relies on alumina and silica-rich precursors like fly ash for its formation. Geopolymerization is a chemical process that creates a three-dimensional polymer network by reacting with an alkaline activator. While fly ash's calcium oxide (CaO) content is crucial in its classification, it behaves differently in geopolymerization, where it competes with …
Application Of Data Science Techniques To Estimate Soluble Alkali Contribution From Fly Ashes For Determination Of Concrete Pore Solution Chemistry, Anol Mukhopadhyay
Application Of Data Science Techniques To Estimate Soluble Alkali Contribution From Fly Ashes For Determination Of Concrete Pore Solution Chemistry, Anol Mukhopadhyay
World of Coal Ash Proceedings
Application of Data Science Techniques to Estimate Soluble Alkali Contribution from Fly Ashes for Determination of Concrete Pore Solution Chemistry Authors Prof. Anol Mukhopadhyay - United States - Texas A&M University Abstract Traditionally, the available alkali (AA) tests following ASTM C 311 were primarily used to qualify Fly Ashes’ (FA) for suitability in Alkali Silica reaction (ASR) mitigation based on a 1.5% Na2Oeq AA limit. However, the test is currently being discontinued due to criticisms stemming from its lack of correlation with the ASR expansions and high operator/laboratory variability of test measurements. Therefore, a Bayesian machine learning model (ML) is …
Proposed Legacy Rule – Groundwater Compliance Nuances And Lessons Learned, Matthew Dagon, Peter Thibodeau
Proposed Legacy Rule – Groundwater Compliance Nuances And Lessons Learned, Matthew Dagon, Peter Thibodeau
World of Coal Ash Proceedings
Proposed CCR compliance timelines for CCR legacy surface impoundments and management units are compressed compared to 2015 CCR Rule deadlines. Site characterization, configuring monitoring well networks, and statistical analysis are critically important in identifying appropriate closure solutions. The regulated community and environmental consultants offered significant comments on the Proposed Rule, emphasizing that legacy sites are inherently complex and will require similar evaluation as 2015 Rule units. The industry is limited in terms of availability of quality consultants, drill rigs, and laboratories, creating constraints in meeting this compressed proposed timeline. Under the proposed Rule, there is less time for site characterization …
Feasibility Of Concurrent Treatment Of Arsenic And Molybdenum Through Co-Precipitation And Adsorption With Case Study And Cost Analysis, Prachi Jain, Brian Colonnese, Jacob Chu
Feasibility Of Concurrent Treatment Of Arsenic And Molybdenum Through Co-Precipitation And Adsorption With Case Study And Cost Analysis, Prachi Jain, Brian Colonnese, Jacob Chu
World of Coal Ash Proceedings
Feasibility of Concurrent Treatment of Arsenic and Molybdenum through Co-Precipitation and Adsorption with Case Study and Cost Analysis Authors Mrs. Prachi Jain - United States - Haley & Aldrich, Inc. Mr. Brian Colonnese - United States - Haley & Aldrich, Inc. Dr. Jacob Chu - United States - Haley & Aldrich Inc. Abstract Molybdenum and arsenic are among the Appendix IV constituents required to be monitored under the coal combustion residuals (CCR) Rule. At some CCR sites, arsenic and molybdenum in CCR-impacted groundwater were found concurrently at a level above their groundwater protection standards. In the environment, molybdenum is highly …
Use Of Visualization Software For Site Characterization, Kevin Cernik, Craig Schuettpelz, Shane Stockdill, Todd Stong
Use Of Visualization Software For Site Characterization, Kevin Cernik, Craig Schuettpelz, Shane Stockdill, Todd Stong
World of Coal Ash Proceedings
Use of Visualization Software as a Tool for Site Characterization Authors Mr. Kevin Cernik - United States - WSP USA Mr. Craig Schuettpelz - United States - WSP USA Mr. Shane Stockdill - United States - Rainbow Energy Center Mr. Todd Stong - United States - WSP USA Abstract Understanding site geology is critical to manage coal combustion residuals (CCR) units in compliance with the EPA’s CCR Rule, including siting of CCR units and groundwater monitoring wells to understanding suitable foundation conditions. At Rainbow Energy Center's (REC’s) Coal Creek Station, subsurface investigations have been conducted since the mid-1970’s to help …
Paper_Chemical-Free, High-Volume Leachate Pond Filtration: Commercial Success, Gerard Simon, Jennie Henthorn
Paper_Chemical-Free, High-Volume Leachate Pond Filtration: Commercial Success, Gerard Simon, Jennie Henthorn
World of Coal Ash Proceedings
Several constituents of concern (COC) are problematic for coal ash leachate pond waste management, and even more so with the effluent limitation guidelines continuing to become more stringent. Filtration management of leachate ponds continues to have difficulty with effective removal of metals such as selenium, arsenic and boron to the wastewater discharge allowances. A novel technology has proven success in providing a chemical-free, high-volume alternative to traditional filtration in the coal ash and energy space. The technology meets or exceeds permitted allowances for discharge and is rapidly deployable as a mobile technology in addition to the ability to scale for …
Comparing Landfill Post-Closure Stormwater Runoff – Vegetated Soil Cover Versus Engineered Synthetic Turf Cover, Mark Taylor, Chris Jordan, Chris Timpson, Ming Zhu
Comparing Landfill Post-Closure Stormwater Runoff – Vegetated Soil Cover Versus Engineered Synthetic Turf Cover, Mark Taylor, Chris Jordan, Chris Timpson, Ming Zhu
World of Coal Ash Proceedings
Comparing Landfill Post-Closure Stormwater Runoff – Vegetated Soil Cover versus Engineered Synthetic Turf Cover Authors Mr. Mark Taylor - United States - WSP USA, Inc. Mr. Chris Jordan - United States - WSP USA, Inc. Mr. Chris Timpson - United States - WatershedGeo Dr. Ming Zhu - United States - WatershedGeo Abstract An evaluation was conducted of the effects on stormwater runoff, conveyance, and on-site retention as the result of specifying an engineered synthetic turf cover system (specifically ClosureTurf®) versus a conventional vegetated soil cover system for final closure of a CCR landfill in the Southeast U.S. A HydroCAD® H&H …
Modifying Of Expansive Clay Soils Using Alkali Activated Eskom Dump Ash, Cyril Attwell, Phenyo Mvuyana, Kelley Reynolds-Clausen
Modifying Of Expansive Clay Soils Using Alkali Activated Eskom Dump Ash, Cyril Attwell, Phenyo Mvuyana, Kelley Reynolds-Clausen
World of Coal Ash Proceedings
Modifying of expansive clay soils using alkali activated ESKOM legacy ash Authors Mr. Cyril Attwell - South Africa - ARC Innovation Ms. Phenyo Mvuyana - South Africa - Eskom Holdings SOC LTD Dr. Kelley Reynolds-Clausen - South Africa - Eskom Holdings SOC LTD Abstract Expansive clays are the more commonly occurring problem soils in South Africa. Due to spatial constraints, substation construction is increasingly undertaken on these marginal soils, thus increasing earthworks construction costs by approximately 70%. To reduce these costs, the option of using Eskom legacy ash to modify expansive clayey soils should be explored. This study investigated the …
Nano-Modified Fly Ash-Based Geopolymer Concrete Filled Cfrp Tube Composite- Mechanical Model And Life Cycle Assessment, Xianming Shi, Zhipeng Li
Nano-Modified Fly Ash-Based Geopolymer Concrete Filled Cfrp Tube Composite- Mechanical Model And Life Cycle Assessment, Xianming Shi, Zhipeng Li
World of Coal Ash Proceedings
Nano-Modified Fly Ash-Based Geopolymer Concrete Filled CFRP Tube Composite: Mechanical Model and Life Cycle Assessment Authors Dr. Xianming Shi - United States - Washington State University Dr. Zhipeng Li - United States - Washington State University Abstract Geopolymer concrete holds immense potential as a viable alternative to ordinary portland cement (OPC) concrete; however, its application for structures has been hindered by its relatively low compressive strength and significant variability relative to conventional OPC concrete. This study investigates the utilization of carbon fiber-reinforced plastic (CFRP) tubes to confine fly ash-based geopolymer (FAGPR) concrete and its graphene oxide-modified counterpart (GFAGPR), with the …
Corrective Action Sustainability- Holistic Decision Support Tool, John Kondziolka, Ari Lewis, Bruce Hensel, Andrew Bittner
Corrective Action Sustainability- Holistic Decision Support Tool, John Kondziolka, Ari Lewis, Bruce Hensel, Andrew Bittner
World of Coal Ash Proceedings
Corrective Action Sustainability: Holistic Decision Support Tool Authors Mr. John Kondziolka - United States - Gradient Ms. Ari Lewis - United States - Gradient Mr. Bruce Hensel - United States - Electric Power Research Institute Mr. Andrew Bittner - United States - Gradient Abstract Selecting a corrective action approach to address groundwater protection standards at a coal combustion product (CCP) site requires balancing a variety of factors, including risk reduction, effectiveness, community impact, and cost. Several resources exist for conducting corrective action alternatives analyses, but these resources have not been used consistently to holistically evaluate risks and benefits inclusive of …
A Comparative Evaluation Of Portable X-Ray Fluorescence (Pxrf) Analysis On Fly Ash, Christopher Frishcosy, Ashley Manning-Berg, Linen Cooper, Robert Hageman
A Comparative Evaluation Of Portable X-Ray Fluorescence (Pxrf) Analysis On Fly Ash, Christopher Frishcosy, Ashley Manning-Berg, Linen Cooper, Robert Hageman
World of Coal Ash Proceedings
An Evaluation of On-Site X-Ray Fluorescence (XRF) Analysis on Coal Combustion Residuals Authors Mr. Christopher Frishcosy - United States - University of Tennessee at Chattanooga Dr. Ashley Manning-Berg - United States - University of Tennessee at Chattanooga Ms. Linen Cooper - United States - University of Tennessee at Chattanooga Mr. Robert Hageman - United States - Tennessee Valley Authority Mr. Timothy Moyers - United States - Tennessee Valley Authority Ms. Tara Masterson - United States - Tennessee Valley Authority Mr. Nicholas McClung - United States - Tennessee Valley Authority Abstract As coal-fired fossil plants are retiring and less Coal Combustion …
Proposed Ccr Legacy Rule – Making Sense From Chaos, Will Mattingly, Charla Barnes
Proposed Ccr Legacy Rule – Making Sense From Chaos, Will Mattingly, Charla Barnes
World of Coal Ash Proceedings
The proposed CCR Legacy Rule poses numerous challenges and constraints related to implementation and compliance. While the proposed aggressive compliance schedule is daunting, utility owners can set themselves up for success and reduce unwanted surprises by performing low risk, desktop level activities prior to the CCR Legacy Rule promulgation. In addition to the anticipated schedule constraints, there are other obvious challenges related to potential unit interpretations, beneficial use, closure standards, asset repurposing, availability of engineering consultants, certified drillers, laboratories, and qualified reviewers and the lack of consideration of risk. These challenges are known industry-wide and are dependent on requirements to …
Green Cement Llc, Russell Stapp
Green Cement Llc, Russell Stapp
World of Coal Ash Proceedings
The Future of CCR “Green Cement” Technology to Reduce CO2 and Provide High-Performance Products Authors Mr. Russell Stapp - United States - Ecomaterial Technologies Abstract ECOMaterial Technology is on the forefront of CCR Beneficial use, and its Green Cement (GCI) Division is specifically advanced in new CO2 reduction product development applications to create high volume uses of CCR to replace up to 60 percent of cement in standard cement formulations. PozzoSlag® product formulations will meet or exceed a Grade 100 and Grade 120 slag performance criteria evaluated under ASTM C989 specifications and compared to blast furnace slag performance. PozzoSlag® is …
Paper_A Comparative Evaluation Of Portable X-Ray Fluorescence (Pxrf) Analysis On Fly Ash, Christopher Frishcosy, Ashley Manning-Berg, Eric Hageman, Timothy Moyers
Paper_A Comparative Evaluation Of Portable X-Ray Fluorescence (Pxrf) Analysis On Fly Ash, Christopher Frishcosy, Ashley Manning-Berg, Eric Hageman, Timothy Moyers
World of Coal Ash Proceedings
As coal-fired fossil plants are retiring and lower volumes of Coal Combustion Products (CCPs) are being produced, the generators of Coal Combustion Residual (CCR) producers across the nation are focused on harvesting landfilled and ponded coal ash to maintain the supply for beneficial use markets such as those volumes needed by the concrete mixing industry. To aid in the development of more efficient harvesting strategies, research performed in the emerging Geomaterials Testing and Research Laboratory (GTRL) at the University of Tennessee at Chattanooga College of Engineering and Computer Science and the College of Biology, Geology, and Environmental Science (UTC – …
Paper_Collaborative Utilization Of Fly Ash And Desulfurization Wastewater, Xia Wang, Yang Dong, Jinder Jow
Paper_Collaborative Utilization Of Fly Ash And Desulfurization Wastewater, Xia Wang, Yang Dong, Jinder Jow
World of Coal Ash Proceedings
In order to reduce sulfur dioxide emission in flue gas to meet the national requirement less than 35 mg/m3, the wet desulfurization process is typically used in the coal-fired power plant, resulting in generation of flue-gas desulfurization gypsum and desulfurization wastewater. The wastewater can be re-used or discharged only after water-treatment to meet the relevant industry standard requirements of water quality. This treatment process increases the operation cost. Fly ash is also produced from the coal-fired power plant, mainly used in building materials as a supplementary cementitious material to cement. The objective of this study is to develop fly ash-based …
Preparing To Dewater A Ccr Pond, Ron Hager, James Feild
Preparing To Dewater A Ccr Pond, Ron Hager, James Feild
World of Coal Ash Proceedings
PREPARING TO DEWATER A CCR POND: WAYS TO BETTER UNDERSTAND YOUR POND CHARACTERISTICS AND PLAN FOR A SUCCESSFUL DEWATERING EFFORT Authors Mr. Ron Hager - United States - Burns & McDonnell Dr. James Feild - United States - Burns & McDonnell Abstract Prior to dewatering a CCR pond, Owners and Operators should make the financially responsible decision to invest in the data gathering process to better understand the conditions of the surface impoundment, the properties of the CCR materials contained in the impoundment, and the potential approaches to remove the separable pore water from the ash materials prior to closure. …
Basewood- Boron Remediation Technology, Allison Kreinberg, Rob Ferree, Duane Graves
Basewood- Boron Remediation Technology, Allison Kreinberg, Rob Ferree, Duane Graves
World of Coal Ash Proceedings
An Innovative and Cost-Effective Boron Adsorbent Media Authors Ms. Allison Kreinberg - United States - Geosyntec Consultants, Inc. Mr. Rob Ferree - United States - Geosyntec Consultants, Inc. Dr. Duane Graves - United States - Geosyntec Consultants, Inc. Abstract Boron can be an indicator of coal combustion residual (CCR) impacts to groundwater due to its elevated concentration within CCR materials and highly mobile (conservative) geochemical behavior. Groundwater remedial alternatives for boron may be necessary if it is added to the list of assessment monitoring constituents under the Federal CCR Rule (40 CFR 257 Subpart D) or if States elect to …
5.5-Year Old Concrete Made With Spray Dryer Absorber Material, Benjamin Gallagher, Sundar Chithiraputhiran, Travis Collins
5.5-Year Old Concrete Made With Spray Dryer Absorber Material, Benjamin Gallagher, Sundar Chithiraputhiran, Travis Collins
World of Coal Ash Proceedings
Harvesting and Beneficial Use: Voluntary, Consensus Standard Developed by ASTM E50.03 Authors Mr. Benjamin Gallagher - United States - EPRI Ms. Abigail Calmes - United States - Verdantas Mr. William Petruzzi - United States - Verdantas Abstract ASTM is non-profit organization that develops voluntary, consensus-based standards. ASTM E50.03 subcommittee publishes standards related to beneficial use. The subcommittee’s eight active standards address harvesting of CCPs from landfills and impoundments, beneficial use of CCPs in mine reclamation and structural fills, and beneficial use of impacted lands. This session will provide an overview of active beneficial use standards. The recently published ASTM E3355-23 …