Nutrient removal performance of a five-step sequencing batch reactor as a function of wastewater composition

2003 ◽  
Vol 38 (7) ◽  
pp. 1039-1045 ◽  
Author(s):  
Fikret Kargi ◽  
Ahmet Uygur
Keyword(s):  
Nutrient Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor

scholarly journals Dynamic control of nutrient-removal from industrial wastewater in a sequencing batch reactor, using common and low-cost online sensors

2015 ◽  
Vol 73 (4) ◽  
pp. 740-745 ◽  
Author(s):  
Jan Dries
Keyword(s):  
Activated Sludge ◽  
Nutrient Removal ◽  
Industrial Wastewater ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Low Cost ◽  
Dynamic Control ◽  
Oxygen Demand ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential

On-line control of the biological treatment process is an innovative tool to cope with variable concentrations of chemical oxygen demand and nutrients in industrial wastewater. In the present study we implemented a simple dynamic control strategy for nutrient-removal in a sequencing batch reactor (SBR) treating variable tank truck cleaning wastewater. The control system was based on derived signals from two low-cost and robust sensors that are very common in activated sludge plants, i.e. oxidation reduction potential (ORP) and dissolved oxygen. The amount of wastewater fed during anoxic filling phases, and the number of filling phases in the SBR cycle, were determined by the appearance of the ‘nitrate knee’ in the profile of the ORP. The phase length of the subsequent aerobic phases was controlled by the oxygen uptake rate measured online in the reactor. As a result, the sludge loading rate (F/M ratio), the volume exchange rate and the SBR cycle length adapted dynamically to the activity of the activated sludge and the actual characteristics of the wastewater, without affecting the final effluent quality.

scholarly journals Nutrient Removal and Phosphorus Recovery from Municipal Sewage Using Anaerobic/Anoxic Sequencing Batch Reactor.

2013 ◽  
Vol 69 (7) ◽  
pp. III_121-III_127
Author(s):  
Kenichi SAKAMOTO ◽  
Masashi HATAMOTO ◽  
Masanobu TAKAHASHI ◽  
Kengo KUBOTA ◽  
Nobuo ARAKI ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Phosphorus Recovery ◽  
Municipal Sewage

Effects of Fermented Leachate of Food Waste (FLFW) and Temperature on Nutrient Removal in Sequencing Batch Reactor

2008 ◽  
Vol 13 (3) ◽  
pp. 155-161 ◽  
Author(s):  
Sung-Hee Roh ◽  
Young-Nam Chun ◽  
Sook-Young Lee ◽  
Hyeon-Sook Cheong ◽  
Jae-Wook Lee ◽  
...  
Keyword(s):  
Food Waste ◽  
Nutrient Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor

Feasibility Study on Biological Nutrient Removal in Sequencing Batch Reactor Treating Municipal Wastewater

2020 ◽  
Vol 17 (2) ◽  
pp. 946-949
Author(s):  
Samaneh Alijantabar Aghouzi ◽  
Thomas S. Y. Choong ◽  
M. I. Aida Isma
Keyword(s):  
Nutrient Removal ◽  
Sequencing Batch Reactor ◽  
Municipal Wastewater ◽  
Batch Reactor ◽  
Ammonia Nitrogen ◽  
Biological Nutrient Removal ◽  
Nitrogen And Phosphorus ◽  
Bacterial Consortia ◽  
Aeration Time ◽  
Working Volume

This study elucidates the performance of sequencing batch reactor for nutrient removal from municipal wastewater. The removal of COD, ammonia nitrogen and phosphorus were investigated. The SBR with a working volume of 5 L was operated for 6 hours, with 5 min fill, 30 min settle and 5 min effluent withdrawal. The remaining time in each cycle was 90 min anaerobic phase, 130 min anoxic phase and 110 min aerobic phase. The experiment was repeated with a longer aeration time of 180 min resulting to prolong the duration cycle. In the aerobic phase, dissolved oxygen was kept in the range of more than 2 mg/L. During batch operation, the system attained stability and had a removal efficiency for ammonia nitrogen, COD and phosphorus of 51.36%, 83.33% and 99.53%, respectively. Extending the aeration period improved ammonia nitrogen removal to 54.27%. It should be noted that the stability of the granular biomass agglomerates highly depending on the bacterial consortia. The particle size of sludge reduced from 60.26 μm to 39.00 μm in 60 days. It was observed that degranulation process and biomass loss was unavoidable.

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