Abstract：
:This study aims to develop a novel technology for actual municipal wastewater treatment to achieve rapid sludge sedimentation and high pollutants removal efficiency. The SBRs were modified and operated with periodic addition of 20 μL·L-1 nanofloc®. Results revealed that NH4+-N and chemical oxygen demand (COD) was efficiently removed in both laboratory- and pilot-scale SBRs, and the average removal efficiency of total nitrogen (TN) and total phosphorus (TP) was as high as 72.43 ± 2.66% and 98.63 ± 0.74%, respectively, with hydraulic retention time (HRT) of 8 h. Besides, the sludge volume index at 30 min (SVI30) was only 40.06 ± 1.99 mL·g-1, comparable with aerobic granular sludge (AGS). This novel technology could be proposed as a competitive method to upgrade, reconstruct and delay the expansion of municipal wastewater treatment plants (WWTPs) due to its rapid sludge sedimentation and efficient pollutants removal with low HRT.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
He W,Wang Q,Zhu Y,Wang K,Mao J,Xue X,Shi Ydoi
10.1016/j.biortech.2021.124675subject
Has Abstractpub_date
2021-03-01 00:00:00pages
124675eissn
0960-8524issn
1873-2976pii
S0960-8524(21)00013-4journal_volume
324pub_type
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