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  • distribution of methanogenic potential in fractions of turf grass used as inoculum for the start-up of thermophilic anaerobic digestion

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 500
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this study aims to investigate thermophilic methanogens in turf used as an inoculum. results showed that methanoculleus sp. regarded as hydrogenotrophic andmethanosarcina sp. regarded as acetoclastic methanogens were present in turf tested. however, active acetoclastic methanogens were present in turf soil only. the current study showed that thermophilic methanogens were present in various turf grass species:stenotaphrum secundatum, cynodon dactylon, and zoysia japonica. severe treatments of grass leaves under oxic conditions, including blending, drying and pulverizing did not affect the thermophilic hydrogenotrophic methanogenic activity of the grass. a dried and pulverized grass extract could be generated that can serve as a readily storable methanogenic inoculum for thermophilic anaerobic digestion. the methanogens could also be physically extracted into an aqueous suspension, suitable as an inoculum. the possible contribution of the presence of methanogens on grass plants to global greenhouse emissions is briefly discussed.

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