Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Simultaneous Biological Organic Matter and Nutrient Removal in an Anaerobic/Anoxic/Oxic (A2o) Moving Bed Biofilm Reactor (Mbbr) Integrated System Publisher



Jaafari J1, 2 ; Seyedsalehi M3 ; Safari GH4 ; Ebrahimi Arjestan M5 ; Barzanouni H3 ; Ghadimi S6 ; Kamani H7 ; Haratipour P8
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Environmental Health, School of Public Health, Guilan University of Medical Sciences, Tehran, Iran
  2. 2. Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Rasht, Iran
  3. 3. Department of Environmental Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
  4. 4. Department of Environmental Engineering, School of Public Health, Tabriz University of Medical Science, Tabriz, Iran
  5. 5. Department of Industrial Engineering, Kharazmi University, Tehran, Iran
  6. 6. Department of Health & Safety Executive Engineering, Kar Higher Education Institute, Qazvin, Iran
  7. 7. Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
  8. 8. Department of Chemistry, Sharif University of Technology, Azadi Avenue, Tehran, Iran

Source: International Journal of Environmental Science and Technology Published:2017


Abstract

In the present study, the performance of three moving bed biofilm reactors (MBBRs) has been evaluated in series with anaerobic/anoxic/oxic (A2O) units for simultaneous removal of organic matter and nutrients (nitrogen and phosphorous) from a synthetic wastewater with characteristics similar to those of a typical municipal wastewater. Response surface methodology based on central composite design was used to investigate the effects of nitrate recycle ratio, hydraulic retention time (HRT), and influent chemical oxygen demand (COD) on the organic and nutrient removal and optimization process. The optimized values of influent COD, HRT, and R were 462 mg/L, 10 h, and 3.52, respectively. The predicted and observed values at optimized conditions were 92.8% and 93 ± 1.3%, 84.3% and 84 ± 1.3%, 71.7% and 68 ± 1.6% for COD, TN, and TP removals and 100 and 97 ± 1.2 mL/g for sludge volume index, respectively. After that, the influent COD, TN, and TP were increased to 550, 48, and 12 mg/L, respectively, to partly simulate the organics and nutrient variations of real wastewater treatment plants. The COD, TN, and TP removals were 91 ± 1.3, 82 ± 1.1, and 71 ± 0.8%, respectively. The influent COD, TN, and TP were increased again to 650, 56, and 14 mg/L, respectively. After this phase, the COD, TN, and TP removals were 90 ± 0.8, 80 ± 1.2, and 70 ± 1.0%, respectively. Obtained results indicated the good stability of the optimized system and the ability of MBBRs to remain stable at influent organics and nutrient variations. The ratio of attached volatile solids to mixed liquor volatile suspended solids was 1.90 ± 0.10, 2.07 ± 0.09, and 2.25 ± 0.14 in phases 1, 2, and 3, respectively. These high ratios indicate that the microorganisms had favored the attached growth to the suspended growth within the whole operation time. © 2016, Islamic Azad University (IAU).
Related Docs
View other Related Docs
1. Response Surface Methodological Approach for Optimizing Heavy Metal Biosorption by the Blue-Green Alga Chroococcus Disperses, Desalination and Water Treatment (2019)
2. A Study of Cr(Vi) and Nh4+Adsorption Using Greensand (Glauconite) As a Low-Cost Adsorbent From Aqueous Solutions, Water and Environment Journal (2020)
3. Optimization of Heavy Metal Biosorption Onto Freshwater Algae (Chlorella Coloniales) Using Response Surface Methodology (Rsm), Chemosphere (2019)
4. Influence of Edta and Nta on Heavy Metal Extraction From Sandy-Loam Contaminated Soils, Journal of Environmental Chemical Engineering (2016)
5. Statistical Modeling and Optimization of the Phosphorus Biosorption by Modified Lemna Minor From Aqueous Solution Using Response Surface Methodology (Rsm), Desalination and Water Treatment (2016)
6. Remediation of Heavy Metals Contaminated Silty Clay Loam Soil by Column Extraction With Ethylenediaminetetraacetic Acid and Nitrilo Triacetic Acid, Journal of Environmental Engineering (United States) (2017)
7. Performance Evaluation of Sulfate Reducing Bacteria in Removing Lead, Chromium and Nickel by Anaerobic Packed Bed Reactor, Desalination and Water Treatment (2017)
8. Tetracycline Removal From Aqueous Solutions Using Zeolitic Imidazolate Frameworks With Different Morphologies: A Mathematical Modeling, Chemosphere (2019)
Experts (# of related papers)
View all Related Experts
Kamyar Yaghmaeian (4)
Mahmood Alimohammadi (2)
Other Related Docs
9. Investigation of the Extent of Contamination of Heavy Metals in Agricultural Soil Using Statistical Analyses and Contamination Indices, Human and Ecological Risk Assessment (2019)
10. Characterization, Kinetic, Thermodynamic and Isotherm Data for Diclofenac Removal From Aqueous Solution by Activated Carbon Derived From Pine Tree, Data in Brief (2018)
11. Spatial and Temporal Variation of Physicochemical and Microbial Quality of Drinking Water for the Distribution Network in Maku, Iran, Desalination and Water Treatment (2019)
12. Effect of Modification by Five Different Acids on Pumice Stone As Natural and Low-Cost Adsorbent for Removal of Humic Acid From Aqueous Solutions ‐ Application of Response Surface Methodology, Journal of Molecular Liquids (2019)
13. Data for Efficiency Comparison of Raw Pumice and Manganese-Modified Pumice for Removal Phenol From Aqueous Environments—Application of Response Surface Methodology, Data in Brief (2018)
14. Cfd Modeling of Incinerator to Increase Pcbs Removal From Outlet Gas, Journal of Environmental Health Science and Engineering (2015)
15. Biodegradation of Atrazine From Wastewater Using Moving Bed Biofilm Reactor Under Nitrate-Reducing Conditions: A Kinetic Study, Journal of Environmental Management (2018)
16. Investigating the Effect of Photo-Electro Oxidation Process Modified With Activated Carbon Bed As a Porous Electrode on Amoxicillin Removal From Aqueous Solutions, Desalination and Water Treatment (2020)
17. Comparison of Zero Valent Iron and Zinc Oxide Green Nanoparticles Loaded on Activated Carbon for Efficient Removal of Methylene Blue, Desalination and Water Treatment (2019)
18. Application of Artificial Neural Networks and Response Surface Methodology for Analysis of Malachite Green Removal From Aqueous Solution Using Phosphoric Acid–Modified Pumice Powder: Kinetic and Isotherm Studies, Desalination and Water Treatment (2020)
19. Removal of Phosphate From Aqueous Solutions Using Granular Ferric Hydroxide Process Optimization by Response Surface Methodology, Desalination and Water Treatment (2019)
20. Data on Pollutants Content in the Influent and Effluent From Wastewater Treatment Plant of Rasht in Guilan Province, Iran, Data in Brief (2018)
21. Application of Novel Modified Biological Aerated Filter (Mbaf) As a Promising Post-Treatment for Water Reuse: Modification in Configuration and Backwashing Process, Journal of Environmental Management (2017)
22. Investigation of Hospital Solid Waste Management in Iran, World Review of Science# Technology and Sustainable Development (2015)
23. The Concentration Data of Heavy Metals in Vegetables of Guilan Province, Iran, Data in Brief (2018)
24. Evaluation of Water Corrosion, Scaling Extent and Heterotrophic Plate Count Bacteria in Asbestos and Polyethylene Pipes in Drinking Water Distribution System, Human and Ecological Risk Assessment (2018)
25. Enhancement Adsorption of Hexavalent Chromium Onto Modified Fly Ash From Aqueous Solution; Optimization; Isotherm, Kinetic and Thermodynamic Study, Journal of Dispersion Science and Technology (2019)
26. Sonocatalytic Degradation of Humic Acid by N-Doped Tio2 Nano-Particle in Aqueous Solution, Journal of Environmental Health Science and Engineering (2016)