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فناوری منابع زیستی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • combined treatment of alkaline and disperser for improving solubilization and anaerobic biodegradability of dairy waste activated sludge

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 747
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     an investigation into the influence of combined alkaline and disperser pretreatment on sludge disintegration was studied. the effects of four variables, alkalines (naoh, koh, ca(oh)2), treatment time (15–180 min), ph (8–11) and rpm (4000–24,000) were investigated. the effect of sludge pretreatment was evaluated by cod solubilization, suspended solids reduction and biogas production. the best performances, in terms of cod solubilization, ss reduction and biogas production, were the ones that occurred for specific energy input of 4544 kj kg−1 ts for naoh at ph10, were found to be 24%, 23.3% and 76%, higher than the control, respectively. not only the increase in biogas production was investigated, excluding protein hydrolysis was also performed successfully by this combined pretreatment even at low specific energy input. thus, this chemo-mechanical is an effective method for enhancement of biodegradability and it laid the basis to produce higher biogas quantities, to improve clean energy generation from was.

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