e-space
Manchester Metropolitan University's Research Repository

    The use of sludge as a micronutrient for the improvement of biogas production from seaweed: the integration of two sources of environmental concern to bring new opportunities

    Rezaei, Mostafa, Ebrahimi‐Nik, Mohammadali, Tedesco, Silvia ORCID logoORCID: https://orcid.org/0000-0003-2447-3673 and Zeynali, Reyhaneh (2021) The use of sludge as a micronutrient for the improvement of biogas production from seaweed: the integration of two sources of environmental concern to bring new opportunities. Biofuels, Bioproducts and Biorefining, 15 (6). pp. 1850-1858. ISSN 1932-104X

    [img]
    Preview
    Accepted Version
    Available under License In Copyright.

    Download (404kB) | Preview

    Abstract

    Large quantities of seaweed in marine environments and coastal areas can cause serious hygienic and environmental problems. Anaerobic digestion (AD) could provide a solution and could also be useful for the production of bioenergy and fertilizer. However, the AD of algae biomass has some limitations and further work is required on the process. To increase the efciency of the process, batches of 350 mL feedstock containing seaweed biomass (Sargassum sp.), inoculum, and different dosages of sludge from drinking water treatment (DWTS) as a micronutrient source to improve biogas production were digested in a 500 mL glass reactor and under mesophilic conditions, leading to signicantly enhanced methane production. The highest methane yield (199 NmL g−1 VS) was observed when 6mg L−1 DWTS was added, which showed a 30% improvement compared with the control digester and accounted for a 249.4 kWh increase in net energy per ton. The biodegradability index also increased by 10% compared with the control after the addition of DWTS.

    Impact and Reach

    Statistics

    Activity Overview
    6 month trend
    298Downloads
    6 month trend
    145Hits

    Additional statistics for this dataset are available via IRStats2.

    Altmetric

    Repository staff only

    Edit record Edit record