Biological phosphate and nitrogen removal in a biofilm sequencing batch reactor

The possibility of joining biological phosphorus and nitrogen removal in a biofilm sequencing batch reactor was studied using an operation strategy with four reaction phases: Anaerobic/Aerobic/Anoxic/Aerobic. A 1,000 liter pilot scale reactor, filled with Pall-Rings as biofilm support was fed with municipal wastewater. After operating the system for 615 days, optimal operation conditions were establish to obtain highest removal rates with a well established microbial community. Adequate cycle and phase duration were established and organic loading values were obtained for different treatment purposes. The system worked successfully obtaining removals of COD, phosphates and ammonia nitrogen of 89 ± 1%, 75 ± 15%, and 87 ± 10%, respectively. The high removal efficiencies of P and N were obtained thanks to the establishing relationship between nitrifying bacteria and phosphate accumulating bacteria.

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Effect of temperature on the nitrogen removal performance of a sequencing batch reactor treating tannery wastewater

Water Science & Technology ◽

10.2166/wst.2004.0870 ◽

2004 ◽

Vol 48 (11-12) ◽

pp. 319-326 ◽

Cited By ~ 8

Author(s):

S. Murat ◽

G. Insel ◽

N. Artan ◽

D. Orhon

Keyword(s):

Nitrogen Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Nitrogen Concentration ◽

Pilot Scale ◽

Ammonia Nitrogen ◽

Tannery Wastewater ◽

Effect Of Temperature ◽

Reactor Technology ◽

Cyclic Operation

The effect of temperature on the nitrogen removal performance of the sequencing batch reactor technology is evaluated for tannery wastewater. The study involved the operation of a pilot-scale sequencing batch reactor installed on site to treat the plain-settled effluent. The nitrogen balance of the system is observed for a wide temperature range between 9 to 30°C. The results are evaluated by means of model calibration of COD, nitrate and ammonia nitrogen concentration profiles during cyclic operation. The fates of the major nitrogen parameters are also interpreted on the basis of fundamental stoichiometry for nitrification and denitrification.

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Advanced nitrogen removal via nitrite from municipal wastewater in a pilot-plant sequencing batch reactor

Water Science & Technology ◽

10.2166/wst.2009.304 ◽

2009 ◽

Vol 59 (12) ◽

pp. 2371-2377 ◽

Cited By ~ 6

Author(s):

Q. Yang ◽

X. H. Liu ◽

Y. Z. Peng ◽

S. Y. Wang ◽

H. W. Sun ◽

...

Keyword(s):

Carbon Source ◽

Process Control ◽

Removal Efficiency ◽

Nitrogen Removal ◽

Pilot Plant ◽

Sequencing Batch Reactor ◽

Municipal Wastewater ◽

Batch Reactor ◽

Nitrite Accumulation ◽

Advanced Nitrogen Removal

To obtain economically sustainable wastewater treatment, advanced nitrogen removal from municipal wastewater and the feasibility of achieving and stabilizing short-cut nitrification and denitrification were investigated in a pilot-plant sequencing batch reactor (SBR) with a working volume of 54 m3. Advanced nitrogen removal, from summer to winter, with effluent TN lower than 3 mg/L and nitrogen removal efficiency above 98% was successfully achieved in pulsed-feed SBR. Through long-term application of process control in pulsed-feed SBR, nitrite accumulation reached above 95% at normal temperature of 25°C. Even in winter, at the lowest temperature of 13°C, nitrite was still the end production of nitrification and nitrite accumulation was higher than 90%. On the basis of achieving advanced nitrogen removal, short-cut nitrification and denitrification was also successfully achieved. Compare to the pulse-feed SBR with fixed time control, the dosage of carbon source and energy consumption in pulsed-feed SBR with process control were saved about 30% and 15% respectively. In pulsed-feed SBR with process control, nitrogen removal efficiency was greatly improved. Moreover, consumption of power and carbon source was further saved.

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

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2020.8746 ◽

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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Sequencing batch reactor treatment of tannery wastewater for carbon and nitrogen removal

Water Science & Technology ◽

10.2166/wst.2002.0244 ◽

2002 ◽

Vol 46 (9) ◽

pp. 219-227 ◽

Cited By ~ 13

Author(s):

S. Murat ◽

E. Atesş Genceli ◽

R. Tasşli ◽

N. Artan ◽

D. Orhon

Keyword(s):

Nitrogen Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Pilot Scale ◽

Tannery Wastewater ◽

Tannery Effluent ◽

Industrial District ◽

Carbon And Nitrogen ◽

Start Up ◽

Evaluation Of System Performance

The paper evaluates the organic carbon and nitrogen removal performance of the sequencing batch reactor (SBR), technology for tannery wastewater. For this purpose, a pilot-scale SBR was installed on site to treat the plain-settled tannery effluent. The study involved wastewater characterization, start-up and operation of the reactor for carbon and nitrogen removal and model evaluation of system performance. Its removal efficiency was compared with that of the existing continuous-flow activated sludge system providing full treatment to wastewater from the Istanbul Tannery Organized Industrial District.

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Structure Analysis of Aerobic Granule from a Sequencing Batch Reactor for Organic Matter and Ammonia Nitrogen Removal

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph110302427 ◽

2014 ◽

Vol 11 (3) ◽

pp. 2427-2436 ◽

Cited By ~ 4

Author(s):

Jun Li ◽

Ang Cai ◽

Danjun Wang ◽

Chao Chen ◽

Yongjiong Ni

Keyword(s):

Organic Matter ◽

Structure Analysis ◽

Nitrogen Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Ammonia Nitrogen ◽

Aerobic Granule

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Studies on Anoxic Aerobic Alternate Frequency of Oxidation Ditch for Removing Nitrogen and Phosphorus

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.610-613.1573 ◽

2012 ◽

Vol 610-613 ◽

pp. 1573-1578

Author(s):

Yu Hong Zhou

Keyword(s):

Removal Efficiency ◽

Nitrogen Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Operating Mode ◽

Ammonia Nitrogen ◽

Oxidation Ditch ◽

Nitrogen And Phosphorus ◽

Phosphorus Species ◽

Biological Removal

Biological removal of nitrogen and phosphorus species from an artificial wastewater was investigated in a sequencing batch reactor ( SBR) by changing operating mode which simulation oxidation ditch aeration realization of point and achieved alternate anoxic/aerobic, The results show that: the total control for 6 h reaction time, including aeration 3 h, stop aeration 3 h, four conditions under the condition of 30 min, 10 min, 5 min, 3 min anoxic/ aerobic alternate of COD, ammonia nitrogen removal not too big effect, TN, TP influence is bigger. COD removal efficiency is above 89% for four modes and effluent COD is lower than 35mg/L.Ammonia nitrogen average removal efficiency is above 90% for four modes and effluent ammonia is less than 5mg/L.Total nitrogen removal rates was 68.71%, 67.70%, 60.36%, 37.27% respectively for four modes. In instantaneous influent, anoxic and aerobic alternating time should not be less than 5min for TN removal. Mode Ⅰto Ⅳ removal efficiency of TP was 23.05%, -2.17%, 1.19%, 43.61% respectively.

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Pilot scale study of sequencing batch reactor (SBR) retrofit with integrated fixed film activated sludge (IFAS): nitrogen removal and design consideration

Environmental Science Water Research & Technology ◽

10.1039/c7ew00337d ◽

2018 ◽

Vol 4 (4) ◽

pp. 569-581 ◽

Cited By ~ 1

Author(s):

Renzun Zhao ◽

Hong Zhao ◽

Rich Dimassimo ◽

Guoren Xu

Keyword(s):

Activated Sludge ◽

Nitrogen Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Pilot Scale ◽

Design Consideration ◽

Fixed Film ◽

Seeding Effect ◽

Pilot Scale Reactor ◽

Scale Reactor

IFAS process was coupled with SBR operation in a pilot-scale reactor to verify the feasibility and to evaluate the performance of IFAS-SBR. Significant nitrification improvement in the IFAS-SBR system was observed, which is attributed to both the introduction of attached-growth biomass on media carriers and the “seeding effect” by biofilm sloughing.

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