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  • moisture variation associated with water input and evaporation during sewage sludge bio-drying

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 557
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the variation of moisture during sewage sludge bio-drying was investigated. in situmeasurements were conducted to monitor the bulk moisture and water vapor, while the moisture content, water generation, water evaporation and aeration water input of the bio-drying bulk were calculated based on the water mass balance. the moisture in the sewage sludge bio-drying material decreased from 66% to 54% in response to control technology for bio-drying. during the temperature increasing and thermophilic phases of sewage sludge bio-drying, the moisture content, water generation and water evaporation of the bulk initially increased and then decreased. the peak water generation and evaporation occurred during the thermophilic phase. during the bio-drying, water evaporation was much greater than water generation, and aeration facilitated the water evaporation.

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