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coal ash recycling a rare opportunity

The coal waste cleanup technology that pays for itself

Mar 9, 2022To make matters worse, coal ash is stored in ponds, large depots that can easily leach toxic waste into nearby water sources. By one estimate, nearly 95 percent of coal ash ponds are unlined—out of...

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Creating a Solid Foundation of Profit Recurring Revenue

making it one of the largest types of industrial waste generated in the U.S. • EPA estimates 1,070 ponds across the U.S. holding coal ash in a liquid form (mixed with water) • April 2015, EPA promulgated comprehensive set of requirements for the management of coal ash in landfills 16

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Not So "Green" Technology: The Complicated Legacy of Rare Earth Mining

For every ton of rare earth produced, the mining process yields 13kg of dust, 9,600-12,000 cubic meters of waste gas, 75 cubic meters of wastewater, and one ton of radioactive residue. This stems from the fact that rare earth element ores have metals that, when mixed with leaching pond chemicals, contaminate air, water, and soil.

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Can Harvesting Rare Earth Elements Solve the Coal Ash Crisis?

Feb 23, 2021As early as the 1940s, coal ash's pozzolanic structure was used to strengthen dams including the Hungry Horse Dam in Montana and the Hoover Dam, bridging Arizona and Nevada. This EPA-approved form of waste recycling—reusing coal ash as a replacement for portland cement in concrete dams and bridges—is called encapsulation.

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Trends in the Rare Earth Element Content of U.S.-Based Coal Combustion ...

A proposed application is to mine coal ash for rare earth elements (REEs), which are critical to the automotive, energy, electronics, and defense industries. REEs consist of the lanthanide series, yttrium, and scandium. ("Total REEs" refer to all 16 elements, herein, unless otherwise noted.

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Could Coal Waste Be Used to Make Sustainable Batteries?

As the researchers have written, "The value of rare earths in a single ton of coal ash can vary from US$99 at a coal plant in Ohio to $534 at a West Virginia plant. With extraction costs expected to range between $380 and $1,200 per ton, not every coal plant's ash will be a profitable place to find rare earths."

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Protein could unlock new sources of rare-earth elements

A protein that binds rare-earth elements could be used to extract and separate these valuable metals from low-grade sources, such as coal ash or electronic waste (ACS Cent. Sci. 2021, DOI: 10.1021 ...

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Improved Rare Earth Element Extraction Method from Coal Ash

Mon, 11/16/2020 - 12:00 U.S. Patent Pending Opportunity This invention describes an improved method for extracting rare earth elements (REEs) from coal ash at ambient temperatures. This technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory. Challenge

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DOST-PCIEERD study finds rare earth elements from coal plant waste

The MSU-IIT Team discussing project details and methodology Researchers from the Mindanao State University - Iligan Institute of Technology (MSU-IIT) has recently uncovered valuable rare earth elements (REEs) from coal fly ash (CFA), a waste material generated by coal power plants.

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Orbite to Milk Fly Ash for Rare Earth - Streetwise Reports

The potential value of fly ash, which is ejected during coal power generation and mostly goes to the dump, just got a bit more interesting. On Wednesday Orbite Aluminae, a junior that has patented a process to remove rare earths and alumina (aluminum oxide) from atypical sources, said it expected to be able extract alumina and rare earths from fly ash in a way that would be "economically viable."

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Rare earth elements from coal mining could boost Appalachian region ...

"By extracting the rare earth elements, you're also cleaning up the water. So, the DEP is 100% supportive," said Rob Rice, West Virginia Department of Environmental Protection. "Coal ash and waste products from coal mining is a big problem. If there are some Rare Earths in there that we can generate, and generate some jobs about that.

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Waste coal ash could provide wealth of rare earth elements

Wang said that the U.S. has accumulated 1.5 billion tons of coal ash, which could be used to produce REEs for decades. "Coal ash is rich in rare earth elements, as rich as some of the ore deposits. The United States produces about 129 million tons of coal ash every year. Less than half of it is recycled into low-value products," she said.

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Appalachian coal ash richest in rare earth elements - ScienceDaily

"The Department of Energy is investing $20 million into research on extraction technologies for coal wastes, and there is literally billions of dollars' worth of rare earth elements contained in...

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(744b) Process Design and Economics of a Novel Process for the ... - AIChE

Rare earth elements are used extensively in military hardware, high-end aircraft equipment, refinery catalysts and the clean energy industry. However, the rare earth mineral resources in the U.S. are limited, with 95% of their supply coming from foreign imports. [1] In this context, coal ash is an abundant waste material from coal power plants with

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Leaching Characteristics of Rare Earth Elements From Bituminous Coal ...

sources such as apatite ore, bauxite waste, and waste recycling, provides an opportunity to take advantage of a resource that does not require mining costs as well as other associated costs given that these expenses are covered by the revenue generated from the production of the primary material. Coal-based materials represent a potential ...

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Recycling seen as way to bolster U.S. rare-earth element supply, go ...

Mar 22, 2022In the past, the EPA has encouraged reuse of coal ash in producing construction materials. "Reuse, when done properly, can produce positive environmental, economic and product benefits, such as...

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Comerica's Ursuy to take on new role with bank - Waste Today

NETL describes TREE as "an environmentally friendly and cost-effective technology to extract rare-earth elements and critical minerals (REEs-CMs) from a broad range of coal and coal-processing materials and waste streams, including bottom ash, fly ash, ponded ash and landfill ash." Rare-earth elements can include cerium, gallium, germanium ...

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Extracting Rare Earth Elements from Waste with a Flash of Heat

An electric current heated coal fly ash by 3,000°C in 1 second, shattering the glass and allowing for fairly easy extraction of the REEs. Flash Joule heating is a method that Tour and his ...

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Researchers eye coal ash as a possible source of critical minerals ...

Jul 7, 2021A major 2019 law required at least a quarter of all coal ash in ponds or landfills in the Chesapeake Bay watershed to be recycled. Construction has so far been the biggest beneficiary of coal ash reuse. The waste can be repurposed to make concrete, cement, wallboard and other materials.

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Mapping the Coal Ash Contamination | Earthjustice

Jul 29, 2021The most studied case of coal ash damage occurred at Belews Lake in North Carolina in the 1970s, when coal ash-contaminated water from an ash pond at Duke Energy's Belews Creek Steam Station caused a long-term catastrophic toxic event. Selenium poisoning killed 19 of the 20 fish species in 3800-acre Belews Lake.

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A review on fly ash from coal-fired power plants: chemical composition ...

An overview of fly ash, its chemical composition, the regulations from nations generating the greatest amount ofFly ash, and epidemiological evidence regarding the health impacts associated with exposure to fly ash are provided. Abstract Throughout the world, coal is responsible for generating approximately 38% of power. Coal ash, a waste product, generated from the combustion of coal ...

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Recycling coal - E-CAPP looks at coal waste for strategic minerals ...

Recycling coal - E-CAPP looks at coal waste for strategic minerals supply By MIKE STILL mstill@timesnews Mar 17, 2022 Virginia Tech professor Michael Karmis and Virginia Department of Energy...

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Repairing the Damage - Union of Concerned Scientists

companies generated a total of 4.5 billion tons of coal ash and from 2015 to 2019 produced an average of 101 million tons of coal ash every year (ACAA 2021; Earthjustice 2019). Coal ash is often mixed with water and stored in large impoundments, commonly called coal ash ponds. It can also be stored in dry form in landfills or reused in products

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Legacy coal ash removal can be an economic boon - Energy News Network

Coal ash from the Michigan City plant was proven to pose a serious risk to human health just a few miles west of Michigan City, in the Town of Pines, which was declared a Superfund site because of groundwater and well contamination. After a years-long process, NIPSCO was forced to provide clean water to residents and fund a massive cleanup.

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The Complete Story of the Kingston Coal-Ash Spill - Men's Journal

It was a precarious setup, one made more so by the fact that this six-story mountain of ash was contained by a dike, made not of concrete or steel but of bottom ash, the coarse, dense component of...

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Effect of chemical treatment of fly ash on the leaching of metals

The U.S. Department of Energy's Office of Scientific and Technical Information

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Legacy coal ash removal can be an economic boon - Energy News Network

Aug 24, 2021Coal ash from the Michigan City plant was proven to pose a serious risk to human health just a few miles west of Michigan City, in the Town of Pines, which was declared a Superfund site because of groundwater and well contamination. After a years-long process, NIPSCO was forced to provide clean water to residents and fund a massive cleanup.

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Rare Opportunity: Researchers See Potential In Mining Coal Waste

December 15, 2017. Throughout coal mining country of the Eastern U.S. you will find streams that run a peculiar rusty orange. It's the result of pollution called acid mine drainage, or AMD. It's estimated that about 10,000 miles of streams are polluted by AMD in Pennsylvania and West Virginia alone. In fact, researchers have calculated that ...

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One case of a rare eye cancer was weird. When four more appeared, the ...

Avner Vengosh, a professor of earth and ocean sciences at Duke University's Nicholas School of the Environment, has in fact documented coal-ash effluent in all the major lakes and streams ...

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Investigation on Extraction and Recovery of Rare Earth Elements from ...

Suganal, S. (2018). Rare earth elements enrichment of fixed-bed coal ash from a pilot plant gasification by physical methods. Indonesian Mining Journal, 21, 2. CrossRef Google Scholar Taggart, R. K., et al. (2018). Effects of roasting additives and leaching parameters on the extraction of rare earth elements from coal fly ash.

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Appalachian Coal Ash Richest in Rare Earth Elements

The results showed that ash collected from Appalachian Mountain coal has the highest amount of rare earth elements at 591 milligrams per kilogram (or parts per million). Ash from Illinois and the Powder River Basin contain 403 mg/kg and 337 mg/kg, respectively. The researchers then used a common industrial extraction technique featuring nitric ...

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Characteristics of Light Rare Earths from Korean Coal Power Plants Ash ...

Currently, critical rare metals are highly demanded and growing fast in greentechnologies. Recycling of mineral waste sources for the recovery of critical rare metals are one of the alternative resources for this critical rare metals crisis. Various mineral waste sources such as mine residues and coal ash are rich sources of rare earth elements.

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DOE will build nation's first large-scale facility to turn ... - ABC57

The Energy Department plans to build the nation's first large facility to extract critical minerals like nickel and cobalt from waste like coal ash. Those metals could then be used in components ...

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Aqueous acid and alkaline extraction of rare earth elements from coal ...

The recovery of rare earth elements (REEs) from coal combustion fly ash has recently gained attention as a possible beneficial reuse application that could provide an alternative, low-grade source...

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Rare Opportunity: Researchers See Potential In Mining Coal Waste

Rare Opportunity: Researchers See Potential In Mining Coal Waste Glynis Board April 12, 2019 Economy Pollution Water This story was originally published on February 16, 2018 Throughout coal mining country of the Eastern U.S. you will find streams that run a peculiar rusty orange. It's the result of pollution called acid mine drainage, or AMD.

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DOE will build nation's first large-scale facility to turn fossil fuel ...

Department of Energy officials like Wilcox see coal waste as a new opportunity to make the US less reliant on foreign supply. ... The department aims to have the facility be able to process about 1,000 metric tons of mixed rare earth oxides, increasing that to 10,000 metric tons per year by 2035 and 20,000 metric tons per year by 2040 ...

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Protein process could revolutionize rare earths extraction

The team tested the purification column on a solution leached from coal ash. One pass through the column was enough to produce an enriched solution in which 88% of the metal ions were REEs, a 2,000-fold improvement in purity. "It's impressive, because it's starting at less than 0.1% rare earths, so it's a really large upgrading ...

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Rare Opportunity: Researchers See Potential In Mining Coal Waste

This story was originally published on February 16, 2018. Throughout coal mining country of the Eastern U.S. you will find streams that run a peculiar rusty orange. It's the result of pollution called acid mine drainage, or AMD. It's estimated that about 10,000 miles of streams are polluted by AMD in Pennsylvania and West Virginia alone.

WhatsApp:+8617329420102

Coal Ash Management Forum - Environmental Research & Education Foundation

222 East Third Street. Charlotte, NC 28202. The conference aims to be a forum where both the utility and waste management sectors can share ideas, research, operations strategies and case studies on how to manage coal ash beneficially or in a landfill setting. Opportunities to better understand challenges in how coal combustion residuals on the ...

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Make it in Appalachia! Waste Coal: Turning Liability into Opportunity

Tuesday, August 23rd at 3 p.m. ReImagine Appalachia held a listening session entitled, " Coal Waste: Turning Liabilities into Opportunities" on Tuesday, August 23rd. This webinar discussed what coal waste exists in our region and the potential benefits of these new technologies, key considerations for communities and other big questions for ...

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