sludge gasification Articles

  • Study on sewage sludge gasification

    Aimed at creating new technology to reduct greenhouse gas emission, the Tokyo Bureau of Sewerage has developed a system generating electricity with a gas engine using biogas generated by pyrolytic gasification of sewage sludge in a fluidized-bed gasifier. A 15t/d demonstration facility was built based on a dehydrated sludge and demonstration tests were run for 3400 hours from 2005. As a result of ...

  • Preliminary studies of lignocellulosics and waste fuels for fixed bed gasification

    This study was carried out to understand the decomposition behaviour of a range of biofuel and waste feedstock during gasification in a downdraft gasifier. A laboratory scale large sample thermogravimetric analyser (LSTA) is used which allows the data on burn-out characteristics of different fuel particles to be measured under agitated conditions. The conditions chosen simulate the combustion ...


    By Inderscience Publishers

  • Sludge Treatment and Disposal: Management Approaches and Experiences

     Abstract This report describes various methods of sludge treatment and disposal: it is intended for those charged with the task of determining the fate of sludge, providing them with the information necessary to select among action alternatives. Table of contents Introduction Background Sludge characterisation ...

  • Energy recovery from thermal treatment of dewatered sludge in wastewater treatment plants

    Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60–80%. Prior to ...


    By IWA Publishing

  • Conversion of sewage sludge to commodity chemicals via syngas fermentation

    Gasification of sewage sludge allows the recovery of energy, and produces a mix of CO, CO2 and H2 called synthesis gas (or syngas), which can be fermented by acetogenic bacteria to added-value products. This work presents the conversion of syngas to organic acids and alcohols using both pure and mixed cultures. Pure culture kinetic experiments with Clostridium ...


    By IWA Publishing

  • Evaluation of the energetic potential of sewage sludge by characterization of its organic composition

    The composition of sewage sludge and, thus, its energetic potential is influenced by wastewater and wastewater treatment processes. Higher or lower heating values (HHV or LHV) are decisive factors for the incineration/gasification/pyrolysis of sewage sludge. The HHV is analyzed with a bomb calorimeter and converted to the LHV. It is also possible to calculate the heating value via chemical ...


    By IWA Publishing

  • Biodegradability of some nitrogenous heterocyclic compounds and co-degradation with phenol by denitrifiers in anoxic sludge reactor

    Phenol and nitrogenous heterocyclic compounds (NHCs) are typical organic pollutants in coal gasification wastewater which are difficult to deal with. Unlike phenol, the stable molecular structure of NHCs make them nearly impossible to degrade under aerobic or anaerobic condition. In this paper, biodegradation of phenol and NHCs as carbon sources for denitrification was studied in a ...


    By IWA Publishing

  • Treatment of ship sludge oil using a plasma arc waste Destruction system (PAWDS)

    The Plasma Arc Waste Destruction system (PAWDS) uses a plasma torch to quickly gasify solid  waste on board ships. Developed under the support of the US Navy, this compact one deck system has been in commercial operation on board a cruise ship for more than three years. With the support of Carnival Cruise Lines and the National Research Council of Canada, the PAWDS was recently modified in ...


    By PyroGenesis Canada Inc.

  • Staged Thermal Treatment Combined With Pyrometallurgical Smelting Producing Energy and Products From Waste

    Incineration of waste is considered as a state-of-the-art technology. However staged gasification in combination with pyrometallurgical smelting is ready for market introduction and offers principal advantages. These are higher efficiency (up to 35% electricity), efficient and cheaper fuel gas cleaning (less emissions), high quality secondary products (synthetic basalt), high input flexibility, ...


  • The MAGnificent Seven - Gunning for Marine Waste

    Waste Management World focused this article on Terragon Environmental Technologie's product, MAGS (Micro Auto Gasification System) and the solution it provides to the maritime sector.  MAGS transforms solid waste and sludges into energy which can be intergrated at the site where waste is generated.  New regulations from MARPOL Annex V came into effect on January 1, 2013 - virtually ...

  • Removal of ecologically harmful pyrolysis gas and vapours

    Type     HOFGAS®- IFM4c/1000 Commissioning     August 2002 Site     Waste water treatment plants Situation As a result of new authority requirements, Romag AG set up operation of a plant for the drying and gasification of wastewater sludge. Drying vapours are formed during the sludge drying and pyrolysis gas during gasification. These emissions must be burned in an ecological way, ...


    By Hofstetter BV

  • Neptune project deliverable D4.3

    Decision support guideline based on LCA and cost efficiency assesment The environmental sustainability assessments described in this report is based on life cycle assessments (LCA) of selected waste water treatment technology (WWTT) cases included in NEPTUNE. The basic approach in these assessments (avoided against induced impacts) is described in Deliverable 4.1 (Larsen et al. 2007) ...


    By IWA Publishing

  • Case Study: New Tennessee Waste-To-Energy Plant

    Clean Conversion Infrastructure Addition To Give Lebanon Renewable Energy PHG Energy will provide the vibrant and growing Middle Tennessee city of Lebanon with a new method of sustainable waste disposal and renewable energy production when this system is completed in 2016. Commercial wood waste that was previously dumped into in area landfills, hundreds of tons of scrap tires, and ...


    By PHG Energy, LLC

  • Case Study: Municipal Sustainability

    PHGE Brings Renewable Energy, Diverts Wood & Sludge from Landfill Progressive civic leaders in Covington, TN, knew there was a better solution to disposing of wood waste and sludge than hauling thousands of tons to a landfill every year and paying tipping fees. PHG Energy designed and installed the company’s first municipal gasification system at the city’s waste water ...


    By PHG Energy, LLC

  • Florida Waste-To-Energy Plant Has Composting Officials Fired Up

    Plans for a renewable energy facility in central Florida which will burn horse stall bedding as well as other wastes is raising concerns among officials from composting companies in the region, who are questioning everything from the cost-effectiveness of the multimillion dollar plant to whether it will actually help alleviate groundwater pollution problems. “The proposed gasification plant is a ...

  • Emerging Waste Conversion Technologies

    Today, people and companies are more aware and concerned about the environment than ever before. Everyone is looking for ways to reduce waste or convert organic waste into something more useful. The Federal Government has introduced a renewable energy policy and is continuing to fund for new waste conversion technology. It is now important for local governments to portray their cities and towns ...

  • Refuse Derived Fuel, Current Practice and Perspectives

    Untitled Document Summary I OBJECTIVES The objectives of the project were to undertake a survey on the current ...

  • Biogas Market Snapshot 2014

    1. Biogas Market Scope - Introduction and Definition Biogas is a widely available renewable energy source that can produce uninterrupted baseload power. Biogas can be produced from a wide variety of available organic materials and wastes, including sewage sludge, animal manure, municipal/industrial organic waste, stillage from ethanol production, crop residues, and specially grown energy ...


    By XPRT Media

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