anaerobic digester process efficiency Articles

  • A novel technique for evaluating foam dynamics in anaerobic digesters

    Foaming in anaerobic digesters has severe impacts on process efficiency and operational costs. In this study, we present an experimental method to determine foam behaviour and stability for various foaming solutions. This novel technique measured foam conductivity at different heights along a foam column allowing changes in foam composition to be monitored in time. We analysed foam stability ...


    By IWA Publishing

  • The effect of iron and aluminium for phosphorus removal on anaerobic digestion and organic sulfur generation

    The addition of iron or aluminium into activated sludge basins for phosphorus removal is likely to impact both the efficiency of the anaerobic digestion process and the generation of odor-causing compounds following digestion and dewatering. In this study, the impact of iron and aluminium addition on digestion and odor-causing compounds was investigated by using batch digestion of combined ...


    By IWA Publishing

  • The intermediate thermal hydrolysis process: results from pilot testing and techno-economic assessment

    Thermal hydrolysis has proven to be an efficient pre-treatment process for sludge before anaerobic digestion (AD), by thermally enhancing organic matter hydrolysis. Recent research has shown that a new configuration with the existing technology can further enhance the efficiency of the system. The intermediate thermal hydrolysis process (ITHP) has been explored and tested in the Sludge and ...


    By IWA Publishing

  • ABS Innate Microbial Enhancer

    Anaerobic digestion facilities is recognized by the United Nations Development Program as one of the most useful decentralized sources of energy supply, as they are less capital intensive than large power-plants. The technical expertise required to maintain anaerobic digesters coupled with high equipment cost lower process efficiencies have so far limited the level of its industrial application ...

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