Title of article
Physical characteristics and formation mechanism of denitrifying granular sludge in high-load reactor
Author/Authors
Li، نويسنده , , Wei and Zheng، نويسنده , , Ping and Wang، نويسنده , , Lan and Zhang، نويسنده , , Meng and Lu، نويسنده , , Huifeng and Xing، نويسنده , , Yajuan and Zhang، نويسنده , , Jiqiang and Wang، نويسنده , , Ru and Song، نويسنده , , Ji and Ghulam، نويسنده , , Abbas، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
5
From page
683
To page
687
Abstract
The physical characteristics of denitrifying granular sludge and their granulation mechanism were investigated in two denitrifying reactors (R1 and R2). The results showed that the denitrifying granular sludge was streamlined in shape with the aspect ratio (AR) of 0.62 ± 0.05, large in size with the diameter of 2.39 ± 0.05 mm, and fast in settlement with the average settling velocity (VS) of 126.36 ± 13.32 m/h at the nitrate loading rate (NLR) of 35.14 ± 0.38 kg/(m3 d). The dominance of denitrifying granular sludge with good settleability was attributed to the enhanced growth of granular sludge by extracellular polymers (EPS) and the shaping of granular sludge by shear force.
Keywords
denitrification , High-load , granular sludge , physical characteristics , Formation mechanism
Journal title
Bioresource Technology
Serial Year
2013
Journal title
Bioresource Technology
Record number
1933346
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