جمعه 28 اردیبهشت 1403
| عنوان مقاله | |
| عنوان مقاله |
Treatment of high-strength ethylene glycol waste water in an expanded granular sludge blanket reactor: use of PVA-gel beads as a biocarrier |
| عنوان فارسی مقاله | درمان پسماندهای اتیلن گلیکول با استحکام بالا در راکتور پتو لجن دانه ای منبسط شده: استفاده از دانه های ژل PVA به عنوان یک ماده نگهدارنده |
| مشخصات مقاله انگلیسی | |
| نشریه: Springer |
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| سال انتشار |
2016 |
| عنوان مجله |
Electrical Power and Energy Systems |
| تعداد صفحات مقاله انگلیسی | 10 |
| رفرنس | دارد |
| تعداد رفرنس | 33 |
| چکیده مقاله | |
| چکیده |
Industrial-scale use of polyvinyl alcohol (PVA)-gel beads as biocarriers is still not being implemented due to the lack of understanding regarding the optimal operational parameters. In this study, the parameters for organic loading rate (OLR), alkalinity, recycle rate, and addition of trace elements were investigated in an expanded granular sludge blanket reactor (EGSB) treating high-strength ethylene glycol wastewater (EG) with PVA-gel beads as biocarrier. Stable chemical oxygen demand (COD) removal efficiencies of 95 % or greater were achieved, and continuous treatment was demonstrated with appropriate parameters being an OLR of 15 kg COD/m3 /day, NaHCO3 added at 400 mg/L, a recycle rate of 15 L/h, and no addition of trace elements addition. A biogas production yield rate of 0.24 m3 /kg COD was achieved in this study. A large number of long rod-shaped bacteria (Methanosaeta), were found with low acetate concentration in the EGSB reactor |
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| دانلود | |
