The Biological Removal of Phosphorus in a Sequencing Batch Reactor (SBR) – Practical Considerations and Research Observations

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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Application of response surface methodology to study the biological removal of nitrogen from effluent of cattle slaughterhouse in a sequencing batch reactor

Engenharia Agrícola ◽

10.1590/s0100-69162014000200017 ◽

2014 ◽

Vol 34 (2) ◽

pp. 363-371 ◽

Cited By ~ 1

Author(s):

Adriana N. de Lima ◽

Benedito M. Gomes ◽

Simone D. Gomes ◽

Karina Q. de Carvalho ◽

Divair Christ

Keyword(s):

Total Nitrogen ◽

Flow Rate ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Air Flow ◽

Nitrogen Compounds ◽

Ammoniacal Nitrogen ◽

Air Flow Rate ◽

Initial Concentration ◽

Biological Removal

The aim of this study was to evaluate the efficiency of a sequencing batch reactor (SBR) on biological removal of nitrogen from cattle slaughterhouse wastewater by nitrification/denitrification processes. The effects of initial concentration of ammoniacal nitrogen were investigated at 100; 150 and 200 mg L-1 and air flow rate at 0.125; 0.375 and 0.625 L min¹ Lreactor-1 on the nitrogen compounds removal, by a Central Composite Rotational Design (CCRD) configuration. There were variations from 9.2 to 94.9%, 4.0 to 19.6% and 20.8 to 92.0% in the conversion of ammoniacal nitrogen to nitrate and nitrite concentration and removal of total nitrogen, respectively. The increase of air flow rate and decrease of the initial concentration of ammoniacal nitrogen resulted in higher efficiencies of total nitrogen removal, as well as the conversion of ammoniacal nitrogen to nitrate. During the pre-established intervals of this study, the removal and conversion efficiencies of nitrogen compounds above 85% were achieved in air flow rate variations from 0.375 to 0.725 L min-1 Lreactor-1 and initial concentration of ammoniacal nitrogen from 80 to 200 mg L-1. On denitrification process, we obtained efficiencies from 91.5 to 96.9% on the removal of nitrite/nitrate and from 78.3 to 87.9% on the removal of organic matter.

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Biological removal of cyanide compounds from electroplating wastewater (EPWW) by sequencing batch reactor (SBR) system

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2007.10.056 ◽

2008 ◽

Vol 154 (1-3) ◽

pp. 526-534 ◽

Cited By ~ 29

Author(s):

Suntud Sirianuntapiboon ◽

Kanidta Chairattanawan ◽

Methinee Rarunroeng

Keyword(s):

Sequencing Batch Reactor ◽

Batch Reactor ◽

Electroplating Wastewater ◽

Biological Removal

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Setting-up a control simulation strategy for a sequencing batch reactor (SBR): application to municipal wastewater

Water Science & Technology ◽

10.2166/wst.2003.0070 ◽

2003 ◽

Vol 47 (1) ◽

pp. 297-302 ◽

Cited By ~ 3

Author(s):

M. Casellas ◽

C. Dagot ◽

S. Stelmach ◽

M.N. Pons ◽

M. Baudu

Keyword(s):

Control Strategy ◽

Pollution Control ◽

Sequencing Batch Reactor ◽

Municipal Wastewater ◽

Batch Reactor ◽

Control Plant ◽

Control Treatment ◽

Biological Removal ◽

Simulation Strategy ◽

Laboratory Reactor

The use of a simulation model for setting up a control strategy for a sequencing batch reactor necessary for treating municipal wastewater is described. The model used is the ASM no 1 model. The objective of the pollution control treatment is the removal of carbon and nitrogen; the optimisation is concerned with the improvement in the biological removal of nitrogen. After experimental identification of the initialisation variables, the model enables different SBR control scenarios to be tested (time variation for each process) leading to the total elimination of nitrogen. The best simulation was tested in a laboratory reactor. On that scale, it was noted that denitrification is an endogenous process. Lastly, the control strategy was tested on a semi-industrial pilot working in a pollution control plant. Other control scenarios can be devised and tested by simulation, in order to improve the productivity of the reactor.

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