ash content Articles

  • Recycling of Fly Ash Produced in Combustion of Brown Coal with Increased Germanium Content

    A possibility of utilization of fly ash resulting from combustion of Czech brown coal with increased germanium content in a circulation fluidised bed combuster is examined in this study to recover germanium chloride. The laboratory measurement presented in this paper was focused on three aspects: obtaining raw germanium chloride by its direct distillation from the suspension of fly ash and HCl; ...


  • Fly Ash & the Lightweight Aggregate Market

    In 2015, the global fly ash market was estimated to be valued at 40 billion USD. A recent industry analysis by Research Nester anticipates the market will reach an estimated 70 billion USD by the end of 2023 – a 7.1% CAGR owing to increasing ...


    By FEECO International, Inc.

  • Case study - Fly ash for California’s Olivenhain dam

    The Olivenhain Dam will be the first roller compacted concrete (RCC) gravity dam in California and the tallest in North America. At 308 feet tall and 2,552 feet long, the dam used almost 1.5 million cubic yards of RCC and over 152,000 tons of fly ash. As the centerpiece of the San Diego County Water Authority (SDCWA) Emergency Storage Project, the dam is designed to survive a major earthquake and ...


    By Headwaters, Inc.

  • Removal of carbamazepine from aqueous solution by adsorption on fly ash-amended soil

    Carbamazepine (CBZ), nonbiodegradable pharmaceutical residue, has become an emerging pollutant in several aquatic environments. The effectiveness of the mixture of soil and fly ash (FA) in adsorbing CBZ from aqueous solution has been studied as well as agitation time, FA content, initial CBZ concentration and desorption as a function of FA content. The adsorption kinetics fits a hyperbolic or ...


    By IWA Publishing

  • Determination of Ammonium in Fly-Ash using the Distillation Unit KjelFlex K-360

    To reduce the emissions from ammonia to the environment the content of ammonium in fly-ash is determined. Depending on the ammonium content it is decided how to dispose the fly-ash or if it can be used as additive, e.g. in concrete. An easy and reliable method for the determination of ammonium in fly-ash is introduced in this article. The distillation and boric acid titration was performed with ...


    By BÜCHI Labortechnik AG

  • Case study - Fly ash for stone matrix asphalt in Oregon

    Stone Matrix Asphalt (SMA) is the latest low wear, long life asphalt pavement. It has a proven track record in Europe and is growing in popularity with State Department of Transportations across the country. Georgia alone placed over two million tons of SMA on its roads last year. The Oregon DOT is the latest to adopt SMA and is using it as a high durability asphalt wearing surface on 10 miles of ...


    By Headwaters, Inc.

  • Technical Note: An effective thermal technology for the detoxification of MSW fly ash

    Increasing public concern regarding potential health problems due to improper waste disposal practices and the introduction of landfill taxes have induced the practice of incineration. Presently, all UK incinerators have to meet very strict emission levels. The municipal solid waste (MSW) fly ash generated has to be managed very carefully as it is enriched with toxic organic micro pollutants and ...


    By Inderscience Publishers

  • Case study - High volume fly ash for the 2 Folsom project

    High Volume Fly Ash (HVFA) concrete was successfully used as the cornerstone of this project’s sustainability program. HVFA concrete was aggressively pursued because of its environmental benefits. When fly ash is used in place of cement, energy and landfill space is conserved and greenhouse gas emissions are reduced. During this HVFA project, roughly 2,800 tons of CO2 emissions were ...


    By Headwaters, Inc.

  • Case study - High volume fly ash concrete for Colorado`s ocean journey aquarium

    From the visually breathtaking use of shotcrete to create the architectural features of rocks and trees in the Ocean Journey complex, to the 8,500 cubic yards of high performance concrete for the salt-water tanks and the structure in general – all benefited from the use of Headwaters Resources fly ash. S.A. Miro Engineering sought a high performance concrete with the following features: ...


    By Headwaters, Inc.

  • Composition, morphology, properties of coal fly ash microspheres and their application for conditioning liquid radioactive waste

    Using methods of the Mossbauer spectroscopy, scanning electron microscopy, and thermodynamic analysis of phase formation in silicate multi-component melts, the detailed study of composition, morphology, and properties of fly ash microspheres resulting from combustion of three coals (Irsha-Borodinskii, Kuznetskii and Ekibastuzskii) was carried out. About 60 microspherical products with an iron ...


    By Inderscience Publishers

  • Hurricane HR Cyclones to capture fine fly ash particulate enabling the use of wood waste fired thermal oil heater for Sonae Indústria - Case Study

    The company was forced to use a natural gas fired hot gas generator for drying fibre despite having the necessary amount of thermal energy available in the exhaust stream of a wood waste fired thermal oil heater. The problem of using the biomass thermal oil heater laid on the emission of fine burnt and unburnt particulate which were carried over with the dried fibre and finally deposited on the ...

  • Case study - Point Mugu Naval Airstrip

    The runway is located at the Point Mugu Naval Air Station in Southern California. Economy, durability, low shrinkage and high strength were accomplished by reducing the amount of portland cement used in the concrete while utilizing large volumes of fly ash. In addition to field performance, this approach provided the added environmental goal of reducing the CO2 released into the air through ...


    By Headwaters, Inc.

  • Cleaning of Dukki (Baluchistan) coal by oil agglomeration process

    Cleaning of coal fines by oil agglomeration is an efficient technique by which an appreciable recovery of combustible matter and significant reduction in ash forming minerals are possible. In this study, oil agglomeration process has been employed to clean indigenous coal under the influence of parameters such as oil type, particle size and the pH value of aqueous medium. As agglomerant, castor ...


    By Inderscience Publishers

  • ZG chain grate biomass fired boiler in Pakistan

    The new chain grate boiler system with chain grate stocker permits a wide range of biomass fuels including Bagasse, crop stalk, mustard stalk, cotton stalk, rice husk, coffee grounds, de-oiled bran , wood waste , Coconut shell ,roasted chaff, lignite, paper sludge, coal,corn cob, spent grain with high ash contents to be combusted in an efficient manner with the added advantage of automatic ...


  • COMPARISON OF PROCESS FLOWS: FLUID BED COMBUSTOR AND GLASSPACK® (metric version)

    PURPOSEThe purpose of this document is to present the assumptions and calculations used to prepare Minergy Drawing 100-0204-PP00 (attached). The volumetric flows for both a fluid bed combustor (FBC) and Minergy’s patented GlassPack® closed loop oxygen enhanced combustion process are compared on this drawing. In this drawing, process flows are illustrated by scaling the width of the flow arrows ...


    By Minergy Corporation Limited

  • COMPARISON OF PROCESS FLOWS: FLUID BED COMBUSTOR AND GLASSPACK®

    PURPOSEThe purpose of this document is to present the assumptions and calculations used to prepare Minergy Drawing 100-0204-PP00 (attached). The volumetric flows for both a fluid bed combustor (FBC) and Minergy’s patented GlassPack® closed loop oxygen enhanced combustion process are compared on this drawing. In this drawing, process flows are illustrated by scaling the width of the flow arrows ...


    By Minergy Corporation Limited

  • Biochar: forgotten agricultural nostrum

    What is biochar?  The new multifunctional products are in good request nowadays. One of such innovations is Biochar. This type of charcoal is manufactured using the low-temperature continuous pyrolysis equipment. The raw material for the recycling process is biomass (agricultural and other biological waste). Biochar origins (Terra ...

  • TAIM WESER, at the forefront in biomass cogeneration solutions

    The state-of-the-art biomass gasification plant, developed by TAIM WESER utilizing proprietary technology, is now up and running successfully, joining the range of technological products offered by the company. This solution offers clients high energy efficiency, streamlined processes and a design that, owing to its compact dimensions, allows the equipment to be installed at the location where ...


    By Taim Weser S.A.

  • Voices from India on renewable energy sources

    As we all know that all natural resources on this earth are exhaustible sooner than later.  At the current rate in growth of Energy Demand of the world, Fossil Fuels would last in the following order: Oil is expected to last only 45 years, Gas 70 years and Coal 250 years from now.  The good quality coal of low ash content, however, may last only for another 70 to 100 years. Once these ...


  • How can we use Biomass as an energy source?

    Any Country which has Agriculture or Forestry waste available has big scope to use biomass as an energy source. We can use Biomass as fuel in its loose form but we can also bind them in solid fuel for more energy consumption. Any biomass like forestry waste, Agriculture waste or any other biomass waste can be recycled into solid biomass fuel/Bio coal/White coal/Briquette. What is ...


    By JK Machine Tools

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