Enhanced aerobic granulation for treating low-strength wastewater in an anaerobic-aerobic-anoxic sequencing batch reactor by selecting slow-growing organisms and adding carriers

2021 ◽  
pp. 112547
Author(s):  
Dongbo Liang ◽  
Wei Guo ◽  
Dongyue Li ◽  
Fan Ding ◽  
Peilin Li ◽  
...  
1997 ◽  
Vol 35 (1) ◽  
pp. 193-198 ◽  
Author(s):  
A. G. Brito ◽  
A. C. Rodrigues ◽  
L. F. Melo

This study concerns an assessment of a SBR operation that associates anaerobic aggregated biomass with a pulsed action during the reaction phase, a system named Pulsed Sequencing Batch Reactor (P-SBR). The system uses a diaphragm pump as a pulsator unit to increase the liquid-solid contact, in order to avoid dead zones and possible external mass transfer resistance. A preliminary study of the operation of the reactor was performed with a low strength synthetic wastewater with a COD near 1000 mg.1−1 and a sub-optimal temperature of 22°C. A removal efficiency of 60-70% was attained after 5 and 6 hours of reaction time. The respective organic loads were 5 – 6 kg COD.m−3. day−1, thus supporting the feasibility of the P-SBR system for wastewater treatment in such conditions. The results also indicate that a ratio of 1.8%o between the swept volume delivered by the pump and the reactor volume was adequate to promote a flow turbulence in the sludge blanket and that a redox potential of near −400 mV was readily created by anaerobic bacteria after the reactor filling step.


2012 ◽  
Vol 97 (20) ◽  
pp. 9235-9243 ◽  
Author(s):  
Dong Wei ◽  
Xiaodong Xue ◽  
Shuwei Chen ◽  
Yongfang Zhang ◽  
Liangguo Yan ◽  
...  

2015 ◽  
Vol 295 ◽  
pp. 153-160 ◽  
Author(s):  
Xiaodong Liu ◽  
Yan Chen ◽  
Xin Zhang ◽  
Xinbai Jiang ◽  
Shijing Wu ◽  
...  

2012 ◽  
Vol 198-199 ◽  
pp. 163-170 ◽  
Author(s):  
Eduardo Isanta ◽  
María E. Suárez-Ojeda ◽  
Ángeles Val del Río ◽  
Nicolás Morales ◽  
Julio Pérez ◽  
...  

Chemosphere ◽  
2007 ◽  
Vol 69 (5) ◽  
pp. 769-775 ◽  
Author(s):  
Shu-Guang Wang ◽  
Xian-Wei Liu ◽  
Hua-Yong Zhang ◽  
Wen-Xin Gong ◽  
Xue-Fei Sun ◽  
...  

2007 ◽  
Vol 98 (11) ◽  
pp. 2142-2147 ◽  
Author(s):  
Shu-Guang Wang ◽  
Xian-Wei Liu ◽  
Wen-Xin Gong ◽  
Bao-Yu Gao ◽  
Dong-Hua Zhang ◽  
...  

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