Nitrogen removal of high strength wastewater via nitritation/denitritation using a sequencing batch reactor

2004 ◽  
Vol 50 (10) ◽  
pp. 27-33 ◽  
Author(s):  
E. Lai ◽  
S. Senkpiel ◽  
D. Solley ◽  
J. Keller
Keyword(s):  
Nitrogen Removal ◽  
Sequencing Batch Reactor ◽  
Removal Rate ◽  
Batch Reactor ◽  
High Strength ◽  
Ph Control ◽  
Pilot Scale ◽  
Ammonium Nitrogen ◽  
Experimental Results ◽  
Short Period

The sequencing batch reactor (SBR) process concept was applied to achieve efficient ammonium removal via nitrite under both laboratory and pilot-scale conditions. Both sets of experimental results show that without pH control or carbon addition the nitritation process consistently converted approximately 50% of the ammonium from biosolids dewatering liquids to nitrite with hydraulic retention times (HRT) as short as 10 h. The results from the pilot-scale study also indicate that the selective oxidation of ammonium to nitrite is a reliable process as the accumulation of nitrate was never an issue during a 330-day trial. The SBR process concept was extended to achieve complete nitrogen removal through nitritation and denitritation in the laboratory scale. The experimental results indicate that a total reduction of 96-98% of the ammonium nitrogen from biosolids dewatering liquids (influent concentration typically 1,200 g m-3 ) was achieved with a short HRT of 1.1 d and a removal rate of 1.05 kgNm-3d-1. This process concept was tested at pilot scale where the nitritation process could be started up without temperature control in a short period of time. Nitrogen removal rates up to 1.2 kgNm-3d-1 at an HRT of 0.88 d have been obtained. COD to nitrogen ratios required in the pilot plant were consistently in the range 1.6-1.9 kgCOD kg-1N removed.

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

2002 ◽  
Vol 46 (9) ◽  
pp. 219-227 ◽  
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.

Effect of chloride concentration on nitrogen removal from landfill leachate in sequencing batch reactor after MAP pretreatment

2010 ◽  
Vol 62 (7) ◽  
pp. 1574-1579 ◽  
Author(s):  
M. Chen ◽  
S. He ◽  
Q. Yi ◽  
M. Yang
Keyword(s):  
Nitrogen Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Chloride Concentration ◽  
Ammonium Phosphate ◽  
High Strength ◽  
High Energy ◽  
High Concentration ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium

Leachate generated from landfill is becoming a great environmental challenge to China as it contains high concentration of COD, ammonium and some other substances. Nitrogen removal through the conventional nitrification-denitrification process is hampered by the low C/N ratio especially for the old age landfill sites and the high energy consumption for aeration. In this study, the combination of magnesium ammonium phosphate (MAP) precipitation and Sequencing batch reactor (SBR) was suggested as a new process for the treatment of high strength ammonium, and the effect of high concentration of Cl− after MAP precipitation because of the use of MgCl2 was investigated on SBR performance. The practical upper limit of Cl− for nitrification was found to be 12,000 mg/L, above which resulted in significant accumulation of ammonium in SBR system. It is suggested that an ammonium removal of 70% was suitable for the MAP treatment to achieve a balance between increasing the C/N ratio and avoiding detrimental effect from high concentration of Cl− in the succeeding SBR system. DGGE analysis indicated that high diversity of Ammonium oxidizing bacteria (AOB) could be maintained at a Cl− concentration of 12,000 mg/L.

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

2018 ◽  
Vol 4 (4) ◽  
pp. 569-581 ◽  
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.

Treatment of the Liquor Wastewater Using Sequencing Batch Reactor

2013 ◽  
Vol 781-784 ◽  
pp. 2047-2050
Author(s):  
Xiu Qiong Guan ◽  
Hong Xia Gao ◽  
Tian Xue Lin ◽  
Chun Liu
Keyword(s):  
Activated Sludge ◽  
Removal Efficiency ◽  
Sequencing Batch Reactor ◽  
Removal Rate ◽  
Batch Reactor ◽  
Reaction System ◽  
Experimental Results ◽  
Treatment Efficiency ◽  
Cyclic Operation ◽  
Start Up

Sequencing Batch Reactor (SBR) was investigated for the treatment of liquor wastewater in this paper. This study includes the test of start-up of the SBR, running of the reactor by treating the wastewater. During the start-up process the activated sludge was cultured and acclimated. After acclimation the removal efficiency of CODcr can reach around 99%. Following investigations were focused on evaluation of the treatment efficiency and the reactive cycle during running the SBR. The experimental results showed that running parameters of SBR reaction system were Fill 0.5 h, React 10.0 h, Settle 2.0~2.5 h, Drain 0.5h, Idle 4.0h. Under these conditions the removal rate of CODcr can reach 99%. So the performance of SBR for the wastewater was satisfactory as the wastewater had 1400~2000mg/l of CODcr. The cyclic operation of SBR used in this study proved more effective in treating the wastewater.

scholarly journals Carbon and Nitrogen Removal in Sequencing Batch Reactor Treating Piggrery Wastewater-Pilot Scale Experiment.

1999 ◽  
Vol 22 (12) ◽  
pp. 990-996 ◽  
Author(s):  
Ju-Hyun KIM ◽  
Tetsuro SAKAMURA ◽  
Nobuo CHIBA ◽  
Osamu NISHIMURA ◽  
Ryuichi SUDO
Keyword(s):  
Nitrogen Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Pilot Scale ◽  
Carbon And Nitrogen ◽  
Scale Experiment

Application of activated sludge and biofilm sequencing batch reactor technology to treat reject water from sludge dewatering systems: a comparison

2000 ◽  
Vol 41 (1) ◽  
pp. 115-122 ◽  
Author(s):  
E. Arnold ◽  
B. Böhm ◽  
P.A. Wilderer
Keyword(s):  
Activated Sludge ◽  
Sequencing Batch Reactor ◽  
Early Stage ◽  
Batch Reactor ◽  
Ph Control ◽  
Pilot Scale ◽  
Main Stream ◽  
Sludge Dewatering ◽  
Reject Water ◽  
Side Stream

Side stream reactors to treat reject water from sludge dewatering facilities may be considered to be small treatment plants embedded in large ones. Combination of main stream and side stream treatment provides a number of advantages. Of major importance is that tailored processes can be employed for the two waste streams very different in composition and concentration. Pilot scale experiments were conducted to study the applicability, and to compare the performance of two types of Sequencing Batch Reactor (SBR) systems, an activated sludge and a biofilm SBR. The reactors were operated to achieve nitrification only. Subsequently, the effluent of the reactors is fed into the anoxic zone of the main stream activated sludge plant to achieve denitrification. In general it can be stated that both, activated sludge and biofilm SBR systems are applicable for treating reject water of high ammonia loading. Nitrogen removal efficiencies of more than 90% could be obtained with both systems. If complete nitrification without denitrification is to be achieved, pH control is necessary. However, the amount of sodium hydroxide required for adjusting the pH during nitrification is significant. Foam development and accumulation caused major problems, especially during the early stage of start up. But the time proceeding, and by changing the type of polyelectrolyte used in the sludge dewatering process foam problems could be kept under control.

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

2004 ◽  
Vol 48 (11-12) ◽  
pp. 319-326 ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document