ash treatment Articles

  • Case study - Plant for ash treatment, Singapore

    Engineering and planning, procurement, production and delivery of the complete plant engineering as well as installation and commissioning. The contained metal elements are removed from the slag. The metal-free slag is used as building material for a new island. Customer: Remex Mineralstoff GmbH Retention: August 2014 ...


    By Eggersmann Anlagenbau

  • Fly Ash Treatment – Plasma Torches versus Graphite Electrodes

    Background Plasma generating devices have to be designed to tolerate incredibly harsh conditions during operation and in particular very high heat loads and temperatures around the arc. However, when used in the vitrification of highly chlorinated materials the challenge is even greater than in other applications. The combination of high ...

  • Dewatering of Boiler Ash - Case Study

    Ten Gate develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE PROJECT The Wheelabrator Technology Group provides design/build and operation of trash-to-energy facilities. The Wheelabrator facility located in Lisbon, CT utilizes a storage tank for ...

  • Removal of phosphorus from wastewaters by biomass ashes

    Removal batch assays of phosphates from a synthetic wastewater (SWW) and a pulp and paper mill wastewater (PPWW) with two forestry biomass ashes were performed. The supernatants were not only chemically characterized but also the ecotoxicity was determined using two organisms: Vibrio fischeri and Artemia franciscana. The addition of fly ash and bottom ash to the SWW in ...


    By IWA Publishing

  • Management of sewage sludge and ash containing radioactive materials

    Approximately 50% of the seven to eight million metric tonnes of municipal sewage sludge produced annually in the US is reused. Beneficial uses of sewage sludge include agricultural land application, land reclamation, forestry, and various commercial applications. Excessive levels of contaminants, however, can limit the potential usefulness of land-applied sewage sludge. A recently completed ...


    By Inderscience Publishers

  • Estimation of Ascaris lumbricoides egg inactivation by free ammonia treatment of ash-amended UDDT vault products using stored urine in Uganda

    Urine-diverting dry toilets (UDDTs) are designed to recover nutrients and organic matter from human excreta for use as agricultural amendments, and have been promoted in many developing countries, including Uganda. Wider UDDT implementation could help address problems in areas where water scarcity limits sanitation coverage and/or declining soil fertility jeopardizes growing populations’ ...


    By IWA Publishing

  • Phosphorus from Sewage Sludge Ashes - Case Study

    Phosphorus recovery from phosphorus-rich asses of SNB and HVC Sewage water in the Netherlands contains approximately 12 million kg of phosphorus of which 85% ends up in sewage sludge. When sewage sludge is  burned in a mono-sludge combustor, such as at HVC and SNB, most of the phosphorus ends up in the fly ash. Fly ash contains up to 27% phosphorus. ...


    By Nutrient Platform

  • Recycled fertilizer from Struvite and Ashes - Case Study

    Fertilizers based on sewage sludge ash, bone meal ash and struvite The goal of ICL Fertilizers is to replace the use of limited phosphate rock from mines with phosphate from ashes of sewage sludge, meat and bone meal, wood and ...


    By Nutrient Platform

  • Abatement of organic pollutants using fly ash based adsorbents

    The presence of organic pollutants in the environment is of major concern because of their toxicity, bio-accumulating tendency, threat to human life and the environment. It is a well-known fact that, these pollutants can damage nerves, liver, and bones and could also block functional groups of essential enzymes. Conventional methods for removing dissolved pollutants include chemical ...


    By IWA Publishing

  • Restaurant Wastewater Treatment

    Restaurant Wastewater Treatment Grease Trap Wastewater Treatment, Fats, Oils & Grease Easily Removed Wastewater Recycled A grease trap waste hauling operation requested assistance on determining ...


    By Integrated Engineers Inc.

  • Electro-coagulation treatment efficiency of graphite, iron and aluminum electrodes using alum and wood ash electrolytes on a Kraft pulp and paper mill effluent

    Specific power consumption and reduction of BOD, COD, TS, pH, and chemical elements were used to determine the treatment efficiency of Fe, graphite and Al electrodes with alum and wood ash as supporting electrolytes on the effluent from a Kraft pulp and paper mill in Kenya. Five sampling points were selected along mill's effluent treatment system: primary settling tank (SP1), first aerated lagoon ...


    By IWA Publishing

  • Wastewater Treatment & Recycle

    Fresh water is a scarce commodity; this fact is well acknowledged by one and all. People at all levels be it general public, governmental bodies, and industries understand the implications of good quality water availability in terms of quantity, cost and wastage. As a consequence, there is a growing consensus on wastewater treatment for recycle/reuse. This paper briefly describes the treatment ...

  • Thermal Treatment Technologies

    Hot gas decontamination: Hot gas decontamination is a technology still in the pilot-scale of development that can be used for decontamination of explosives-contaminated masonry or metallic structures. The method involves sealing and insulating the structures, heating with hot gas stream to 260 °C (500 °F) for a prescribed period of time, volatilizing the explosive contaminants, and destroying ...

  • Use of sewage sludge ash (SSA) in the production of cement and concrete - a review

    The use of recycled sewage sludge ash (SSA) in Portland cement and concrete has attracted a lot of global interest due the increase in sludge production and the limitation of land availability where it is used as a soil conditioner. These are in addition to rising environmental concerns. The major components of SSA are SiO2, CaO, ...


    By Inderscience Publishers

  • Sewage sludge ash characteristics and potential for use in bricks, tiles and glass ceramics

    The characteristics of sewage sludge ash (SSA) and its use in ceramic applications pertaining to bricks, tiles and glass ceramics have been assessed using the globally published literature in the English medium. It is shown that SSA possesses similar chemical characteristics to established ceramic materials and under heat treatment achieves the targeted densification, strength increases and ...


    By IWA Publishing

  • Removal of arsenic from drinking water using modified fly-ash bed

    The removal of arsenic from drinking water by filtration through modified fly-ash bed is discussed. The preparation and characteristics of the bed material and the effects of different parameters like pH and the presence of other constituents are described. Various arsenic compounds in synthetic mixtures as well as drinking water samples containing arsenic have been investigated. The ...


    By Inderscience Publishers

  • Inorganic contaminants attenuation in acid mine drainage by fly ash and its derivatives: column experiments

    Treatment of AMD with fly ash (FA) is a promising technology but solid residues (SR) generated in the process pose a disposal challenge. This study evaluates the suitability of the SR and SR, FA/ordinary Portland cement (OPC) blends for backfill in mine voids and in–situ treatment of AMD flows. The mitigation of AMD in a mine void was simulated by addition of simulated acid mine drainage ...


    By Inderscience Publishers

  • Treatment of Arsenic Contaminated Industrial Wastewaters

    Arsenic in industrial wastewater effluents is attracting greater regulatory attention. Depending on factors such as total maximum daily loads (TMDLs), the National Pollutant Discharge Elimination System (NPDES) discharge permit levels for arsenic may even be less than the drinking water standard of 10 µg/L. One of the industries affected by stringent arsenic discharge limits is coal-fired power ...

  • Tracking of arsenics during the thermal stabilization of an AsH3 scrubber sludge

    Toxic arsenics in an AsH3 scrubber sludge were thermally stabilized in the temperature range of 973–1,373 K. To better understand how the high-temperature treatments can stabilize arsenics in the sludge, their synchrotron X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra of arsenics were determined. It is found that the reduced ...


    By IWA Publishing

  • Arsenic waste from water treatment systems: characteristics, treatments and its disposal

    As with other water treatment systems, arsenic treatment creates not only quality water but arsenic waste as well. Management of arsenic waste is now becoming a major public concern due to its harmful effects on the surrounding environment, including serious health problems such as skin cancers and various internal carcinomas. The main aim of this paper is to review: (i) the characteristics of ...


    By IWA Publishing

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