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نویسندگان مقالات پربازدید :
مجله مهندسی شیمی
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • improving methane production during the codigestion of waste-activated sludge and fatty wastewater: impact of thermo-alkaline pretreatment on batch and semi-continuous processes

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 649
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     with the objective of maximising methane production from waste-activated sludge (was), codigestion with fatty wastewater (fw) collected from restaurants was studied and the application of both a 170 °c thermal pretreatment and thermo-alkaline/saponification to mixed was/fw waste was evaluated. batch anaerobic digestion tests showed that recalcitrant compounds were formed during the 170 °c pretreatment of fatty wastewater and thermo-alkaline pretreatments (80 °c or 120 °c, ph 8, 9 or 10) led to an increased initial methane production rate and to a very slight impact on the methane potential of the mixed waste (+4–7%). semi-continuous anaerobic digesters were fed over 4 months with was, two mixed substrates was/fw 90/10 and was/fw 60/40, and with was/fw 90/10 pretreated at softer conditions (80 °c and ph = 8, 0.14 gkoh g-1vs). this pretreatment led to a significant increase in the methane production of semi-continuous reactors (+58%). finally, this study showed the feasibility of the codigestion of waste activated sludge with highly concentrated fatty wastewater (40% in volume, 49% in vs and 73% in cod, equivalent to 7 g l−1 of lipids). it resulted in specific methane production of 362 ml ch4 g−1 vs whereas was alone produced only 116 ml ch4 g−1 vs.

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