coal waste Articles
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Energy recovery from waste by use of fluidized-bed technology
Revolving type fluidized-bed technology, developed by Ebara Corp., is installed in more than 100 facilities worldwide. The technology is applied for waste, coal and in situations where a conventional fluidized bed is difficult to use. Waste and/or coal can be treated and valuable energy can be recovered from a non-renewable source. This paper describes the application of the revolving fluidized ...
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Energy recovery from waste by use of fluidised-bed technology
Revolving type fluidised-bed technology, developed by Ebara Corp., is installed in more than 100 facilities worldwide. The technology is applied for waste, coal and in situations where a conventional fluidized bed is difficult to use. Waste and/or coal can be treated and valuable energy can be recovered from a non-renewable source. This paper describes the application of the revolving fluidised ...
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Comparison of Gas and Water Pycnometry of Coal Mine Wastes
Coal mine washery wastes comprise two major components whose specific gravities differ markedly. Consequently, their specific gravity is much more variable than that of natural soils and is determined relatively frequently. The specific gravity of coal mine wastes is determined more rapidly and efficiently by gas pycnometry than by water pycnometry. However, the two methods give significantly ...
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Investigation of benefit of using coal wastes in cement production
Waste disposal in coal preparation plants leads to serious environmental problems. These wastes usually contain about 20% carbon, and the composition of the remaining ash is similar to clay. Addition of these wastes to cement clinker raw material utilises carbon as a source of energy. In this investigation, the effect of addition of these waste materials to the raw materials used in cement ...
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West Virginia repeals the alternative and renewable energy portfolio standard
On February 3, 2015, West Virginia repealed the Alternative and Renewable Energy Portfolio Act that was originally passed and adopted in 2009. This Act (the Standard) required utilities serving 30,000 residential customers or more to generate at least 25 percent of their electricity from renewable sources by 2025. To be in compliance with the Standard, utilities could use coal (e.g., advanced ...
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Utilisation of waste coal dust of steel industry for power generation
The present paper describes the generation of waste coal-dust from steel industry and its utilisation for generation of power in power plant. The main objective of the work is to utilise the heat energy of coal dust into useful work and propose a combination of coal and coal dust supplying system to the boiler. The work started with the collection and analysis of the coal dust. The physical ...
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Transportation and market feasibility analysis for innovative coal combustion by-products: WoodBrik in Greenbrier County, West Virginia
This paper outlines a transportation and market feasibility study performed in support of Western Greenbrier Co-Generation, LLC's participation in the first Department of Energy Clean Coal Initiative. Western Greenbrier Co-Generation, LLC is a unique company formed by three local city councils to support the development of clean coal technologies in Greenbrier County, West Virginia. The study ...
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Modification of waste coal gangue and its application in the removal of Mn2+ from aqueous solution
We developed a new calcination method to convert coal gangue (CG), a common waste generated from coal production process, into a modified form, which could be used as an adsorbent to remove Mn2+ from aqueous solution. Sodium tetraborate (Na2B4O7·10H2O) was added into the CG calcination process as an additive, and the concentrations of Na2B4O7·10H2O were optimized along with the calcination ...
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An economic feasibility model for ash use in flowable fill with integration of logistics and contaminant leaching factors
Encasement of utility cables and pipes in flowable fill monoliths formed in trenches requires the use of materials that satisfy both strength and contaminant leachability limits. Coal combustion ash is often readily available for use in flowable fill construction. The use of ash in desirably large quantities, calls for the determination and selection of the maximum ash mix fraction that meets ...
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30MW Queensland LNG Power Project - Case Study
Clarke Energy has signed a deal with Australia Pacific LNG to provide a 30MW temporary power plant to their coal seam gas processing plant in Queensland. Clarke Energy to provide 30 MW temporary power station to support operation of Reedy Creek coal seam gas processing facilities Australia Pacific LNG, a joint venture between Origin Energy, ConocoPhillips and Sinopec, is developing an integrated ...
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Geotube Containers Offer Innovative Solution for Disposal of Coal Mine Slurry Waste - Case Study
TenCate helps North River Mine continue processing coal by utilizing first ever large-scale Geobag disposal method. In 2007, the North River Mine coal processing plant in Berry, Alabama was in a bind. Due to new regulatory restrictions, available area, and construction scheduling, the plant was facing a possible interruption of the primary disposal methods of its refuse - a waste stream of ...
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Taishan case study
Breaking new ground in China's industrial energy efficiency Located in the Tai'an, Shandong Province, China, this is the world's first cement sector project to achieve CDM registration, and the first industrial waste heat to power project undertaken in China. The project captures waste heat from the cement making process and utilises it to produce power in a 13.2 MW power plant. The Taishan ...
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Upcoming EU electricity and gas directives should be changed to support EU`s new energy and climate policies
It is important that the coming electricity and gas market directives ensures that renewable energy is given priority in the electricity and gas networks. This is both important when the energy is sold from local producers to the network and when the network is used for transport of energy from a renewable energy production unit to its owners. It applies to both electricity and gas networks, and ...
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Nuclear power can save the world
Expanding technology is the fastest way to slash greenhouse gas emissions and decarbonize the economy. Drs. Goldstein and Qvist are the authors of “A Bright Future: How Some Countries Have Solved Climate Change and the Rest Can Follow.” Dr. Pinker is a psychology professor at Harvard. As young people rightly demand real solutions to climate change, the question is not what ...
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Utilisation of pulverised coal fly-ash as filler and rice straw as fibrous raw material for manufacturing of special grade paper
This innovative research study is based on utilisation of two solid waste materials, pulverised coal fly-ash and rice straw for manufacturing of laminate base paper. Fly-ash can prove to be a very good filler for laminate grade coloured base papers and other specialty papers where very high opacity is sought but whiteness is not important. The paper samples with 22% filler have opacity of 99.6% ...
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Pyrolysis
Introduction: Pyrolysis is formally defined as chemical decomposition induced in organic materials by heat in the absence of oxygen. In practice, it is not possible to achieve a completely oxygen-free atmosphere; actual pyrolytic systems are operated with less than stoichiometric quantities of oxygen. Because some oxygen will be present in any pyrolytic system, nominal oxidation will occur. If ...
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Charcoal Briquette Plant Turns Biomass Waste To Fuel Briquette
Building a biomass charcoal briquette plant will help to reduce other fuel costs and make extra value from the biofuel briquette. Charcoal briquette machine is the indispensable equipment in the charcoal briquette production line. Why Make The Charcoal Briquette Plant For Biomass Waste Among the world’s major energy components, biomass energy is now one of the most rapidly growing energy ...
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Dazed and Confused: Alternative fuels and the CISWI definitions rule
As discussed in ALL4’s December 2008 issue of 4 The Record, the use of alternative and non-traditional fuels for heat and power generation is on the rise, an increase that can be attributed to the price surge and volatility of traditional fossil fuels, as well as to a general desire to use more environmentally friendly materials to reduce greenhouse gas emissions. Alternative fuels have been ...
By All4 Inc.
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Combined load and leachant pH effects on contaminant release from fly ash
Several studies have been performed recently on the suitability of particulate waste materials as substitute aggregate in load bearing and geoenvironmental structures. To investigate the long-term performance and durability of these recycled materials, the coupled effects of the interacting fluid chemistry and applied load are herein analysed experimentally. The leachability of heavy metals ...
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How Can a Tire To Oil Plant Work? The Pyrolysis Process Explained
As the vehicle industry expands in proportion, the number of trash tires produced climbs in proportion. As a result, it really is reasonable to imagine that waste tire pollution gets worse every day. In return, people around the world have developed various strategies for dumping discarded tires in order to limit and prevent pollution. Do you know the Various Techniques for Getting rid of Used ...
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