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    Assessment and mitigation of the environmental burdens to air from land applied food-based digestate

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    Date
    2015-02-14
    Author
    Tiwary, Abhishek;
    Williams, Ian;
    Pant, Dinesh;
    Kishore, V V N
    Metadata
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    Abstract
    Anaerobic digestion (AD) of putrescible urban waste for energy recovery has seen rapid growth over recent years. In order to ascertain its systems scale sustainability, however, determination of the environmental fate of the large volume of digestate generated during the process is indispensable. This paper evaluates the environmental burdens to air associated with land applied food-based digestate in terms of primary pollutants (ammonia, nitrogen dioxide) and greenhouse gases (methane and nitrous oxide). The assessments have been made in two stages – first, the emissions from surface application of food-based digestate are quantified for the business as usual (BAU). In the next step, environmental burden minimisation potentials for the following three mitigation measures are estimated – mixed waste digestate (MWD), soil-incorporated digestate (SID), and post-methanated digestate (PMD). Overall, the mitigation scenarios demonstrated considerable NH3, CH4 and N2O burden minimisation potentials, with positive implications for both climate change and urban pollution.
    Description
    Citation : Tiwary, A. et al. (2015) Assessment and mitigation of the environmental burdens to air from land applied food-based digestate. Environmental Pollution, 203, pp. 262-270
    URI
    https://dora.dmu.ac.uk/handle/2086/18566
    DOI
    https://doi.org/10.1016/j.envpol.2015.02.001
    ISSN : 0269-7491
    Research Institute : Institute of Energy and Sustainable Development (IESD)
    Peer Reviewed : Yes
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    • School of Engineering and Sustainable Development [1940]

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