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Nguyen TP, Vo TKQ, Tran NVN, Tran NVN. Biofilm reactors filled with Stick-bed Biofix and Swim-bed Biofringe biomass carriers in treating chitin production wastewater containing high salinity. ENVIRONMENTAL TECHNOLOGY 2023:1-10. [PMID: 37650511 DOI: 10.1080/09593330.2023.2254486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
The production of chitin generates wastewater containing high content of organic compounds, nutrients, and salinity, thus a biofilm system including anaerobic-anoxic-aerobic bioreactors was employed. This study aims to evaluate the performance of Stick-bed Biofix and Swim-bed Biofringe added to bioreactors as a biomass carrier in order to enhance biomass concentration. The results indicated that the organic removal has been insignificantly affected by high salinity, the removal efficiency was obtained at 95 ± 2% corresponding to a rate of 5.78 ± 1.10 kg COD/m3/d. Otherwise, the nitrogen removal rate was achieved at around 0.45 ± 0.17 kg N/m3/d and strongly decreased to 0.24 ± 0.10 kg N/m3/d under high salinity of 18,000 mg/L and a high loading rate of 1.03 ± 0.10 kg N/m3/d. Phosphorus removal was obtained at 0.032-0.057 kg P/m3/d and decreased by 1.5 times when the salinity is over 10,000 mg/L although the influent load was strongly reduced by pre-treatment. Besides, the biofilm system can also remove around 50% of calcium ions which causes high salinity in chitin production wastewater.
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Affiliation(s)
- Tan Phong Nguyen
- Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade, Ho Chi Minh, Vietnam
| | - Thi Kim Quyen Vo
- Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade, Ho Chi Minh, Vietnam
| | - Nguyen Van Nhu Tran
- Department of Environmental and Occupational Health, Pasteur Institute, Nha Trang, Vietnam
| | - Nguyen Van Nhi Tran
- Institute of Biotechnology and Environment, Nha Trang University, Nha Trang, Vietnam
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Lopes CL, de Assis TM, Passig FH, Lima Model AND, Mees JBR, Cervantes FJ, Gotardo JT, Gomes SD. Nitrogen removal from poultry slaughterhouse wastewater in anaerobic-anoxic-aerobic combined reactor: Integrated effect of recirculation rate and hydraulic retention time. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 303:114162. [PMID: 34861504 DOI: 10.1016/j.jenvman.2021.114162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
The aim of this work was to assess the nitrogen removal from slaughterhouse wastewater in an anaerobic-anoxic-aerobic combined reactor, evaluating the integrated effect of recirculation rate and hydraulic retention time. The recirculation of the liquid phase from the aerobic zone to the anoxic zone was applied to promote the denitrification through the use of endogenous electron donors. Three recirculation rates (R: 0.5, 1 and 2) and three hydraulic retention times (14, 11 and 8 h) were applied. The operation of the reactor was divided into 3 steps (I, II, and III) according to the factors evaluated (recirculation rate and HRT), to achieve operational conditions that would allow satisfactory performance in the different compartments of the reactor. During the experiment the reactor was fed with average total nitrogen (TN) and chemical oxygen demand (COD) of 65 mg L-1 and 580 mg L-1, respectively. The denitrification efficiency (theoretical) and kinetics parameters for COD decay were calculated. The highest performance was verified in the Step III (R = 2) and HRT of 11 h with NH4+ and TN removals of 84% and 65%, respectively. The TN removal efficiency (65%) was considered satisfactory, since the theoretical denitrification efficiency expected for this condition (R = 2) is 67%, without addition of an external carbon source. The lowest nitrification efficiency values were obtained in HRT of 8 h in the Step I and II (R = 0.5 and 1, respectively), indicating that the nitrification time (3 h - aerobic phase) may be the limiting factor in this HRT. The COD removal efficiency was high in all assays (>95%). The values of the kinetic degradation constants of organic matter were close for all recirculation rates, and the highest values were recorded for the HRT of 8 h and R = 1 and R = 2 (-0.48 and -0.43, respectively).
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Affiliation(s)
- Carla Limberger Lopes
- Center of Exact and Technological Sciences, Western Paraná State University (UNIOESTE), Universitária Street, 2069, 85819-210, Cascavel, PR, Brazil
| | - Tatiane Martins de Assis
- Center of Exact and Technological Sciences, Western Paraná State University (UNIOESTE), Universitária Street, 2069, 85819-210, Cascavel, PR, Brazil.
| | - Fernando Hermes Passig
- Academic Department of Chemistry and Biology, Federal Technological University of Paraná (UTFPR), Deputado Heitor Alencar Furtado Street, 4900, Ecoville, 81280-340, Curitiba, PR, Brazil
| | - Adriana Neres de Lima Model
- Center of Exact and Technological Sciences, Western Paraná State University (UNIOESTE), Universitária Street, 2069, 85819-210, Cascavel, PR, Brazil
| | - Juliana Bortoli Rodrigues Mees
- Academic Department of Biological and Environmental Sciences, Federal Technological University of Paraná (UTFPR), Avenida Brasil, 4232, Parque Independência, 85884-000, Medianeira, PR, Brazil
| | - Francisco J Cervantes
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México (UNAM), Blvd. Juriquilla 3001, 76230, Querétaro, Mexico
| | - Jackeline T Gotardo
- Center of Exact and Technological Sciences, Western Paraná State University (UNIOESTE), Universitária Street, 2069, 85819-210, Cascavel, PR, Brazil
| | - Simone Damasceno Gomes
- Center of Exact and Technological Sciences, Western Paraná State University (UNIOESTE), Universitária Street, 2069, 85819-210, Cascavel, PR, Brazil
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Hosseinlou D, Sartaj M, Delatolla R. Simultaneous anaerobic oxidation/partial nitrification-denitrification for cost-effective and efficient removal of organic carbon and nitrogen from highly polluted streams. ENVIRONMENTAL TECHNOLOGY 2019; 40:2114-2126. [PMID: 29411687 DOI: 10.1080/09593330.2018.1438522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/27/2018] [Indexed: 06/08/2023]
Abstract
Laboratory bench-scale anoxic/aerobic reactors with complete mix and continuous flow conditions were operated with high-strength synthetic wastewater to achieve simultaneous COD and nitrogen removal. High concentrations of organic carbon and nitrogen can be found in slaughterhouse, dairy, and food processing wastewaters, and also in some landfill leachates. Therefore, the goal of this study is to find a simple, efficient, reliable, cost-effective, and general solution for organic carbon and ammonia removal from streams with high influent concentrations of more than 5000 mg/L COD and 250 mg/L NH3-N. The highest COD (97%) and NH3-N (91%) removal efficiencies were obtained with initial COD and ammonia concentrations of 5211 mg/L and 262.8 mg/L NH3-N with volumetric loading rates of 11.26 kg COD/m3 d and 0.57 kg NH3-N/m3 d for COD and ammonia, respectively. Anaerobic oxidation is the main COD removal pathway in a simultaneous anaerobic oxidation/partial nitrification-denitrification (SAO/PND) system, and nitrogen removal significantly occurs via bacterial assimilation and partial nitrification-denitrification pathways. There are several advantages for this proposed SAO/PND system from a practical point of view, such as feasibility of simultaneous COD and nitrogen removal in a single reactor; simple operation; flexibility and practicality of this system as a general solution and cost effectiveness.
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Affiliation(s)
- Daniel Hosseinlou
- a Department of Civil Engineering, University of Ottawa , Ottawa , ON , Canada
| | - Majid Sartaj
- a Department of Civil Engineering, University of Ottawa , Ottawa , ON , Canada
| | - Robert Delatolla
- a Department of Civil Engineering, University of Ottawa , Ottawa , ON , Canada
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Akizuki S, Toda T. An anaerobic-aerobic sequential batch process with simultaneous methanogenesis and short-cut denitrification for the treatment of marine biofoulings. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 74:168-176. [PMID: 29326005 DOI: 10.1016/j.wasman.2017.12.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 12/11/2017] [Accepted: 12/11/2017] [Indexed: 06/07/2023]
Abstract
Although combination of denitritation and methanogenesis for wastewater treatment has been widely investigated, an application of this technology to solid waste treatment has been rarely studied. This study investigated an anaerobic-aerobic batch system with simultaneous denitritation-methanogenesis as an effective treatment for marine biofoulings, which is a major source of intermittently discharged organic solid wastes. Preliminary NO2--exposed sludge was inoculated to achieve stable methanogenesis process without NO2- inhibition. Both high NH4+-N removal of 99.5% and high NO2--N accumulation of 96.4% were achieved on average during the nitritation step. Sufficient CH4 recovery of 101 L-CH4 kg-COD-1 was achieved, indicating that the use of NO2--exposed sludge is effective to avoid NO2- inhibition on methanogenesis. Methanogenesis was the main COD utilization pathway when the substrate solubilization occurred actively, while denitritation was the main when solubilization was limited because of substrate shortage. The results showed a high COD removal efficiency of 96.0% and a relatively low nitrogen removal efficiency of 64.4%. Fitting equations were developed to optimize the effluent exchange ratio. The estimated results showed that the increase of effluent exchange ratio during the active solubilization period increased the nitrogen removal efficiency but decreased CH4 content in biogas. An appropriate effluent exchange ratio with high anaerobic effluent quality below approximately 120 mg-N L-1 as well as sufficient CH4 gas quality which can be used as fuel for gas engine generator was achieved by daily effluent exchange of 80% during the first week and 5% during the subsequent 8 days.
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Affiliation(s)
- S Akizuki
- Faculty of Science and Engineering, Soka University, Tangi-machi, Hachioji, Tokyo 192-8577, Japan.
| | - T Toda
- Faculty of Science and Engineering, Soka University, Tangi-machi, Hachioji, Tokyo 192-8577, Japan
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Arriagada C, Guzmán-Fierro V, Giustinianovich E, Alejo-Alvarez L, Behar J, Pereira L, Campos V, Fernández K, Roeckel M. NOB suppression and adaptation strategies in the partial nitrification–Anammox process for a poultry manure anaerobic digester. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.03.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Varas R, Guzmán-Fierro V, Giustinianovich E, Behar J, Fernández K, Roeckel M. Startup and oxygen concentration effects in a continuous granular mixed flow autotrophic nitrogen removal reactor. BIORESOURCE TECHNOLOGY 2015; 190:345-351. [PMID: 25965951 DOI: 10.1016/j.biortech.2015.04.086] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 06/04/2023]
Abstract
The startup and performance of the completely autotrophic nitrogen removal over nitrite (CANON) process was tested in a continuously fed granular bubble column reactor (BCR) with two different aeration strategies: controlling the oxygen volumetric flow and oxygen concentration. During the startup with the control of oxygen volumetric flow, the air volume was adjusted to 60mL/h and the CANON reactor had volumetric N loadings ranging from 7.35 to 100.90mgN/Ld with 36-71% total nitrogen removal and high instability. In the second stage, the reactor was operated at oxygen concentrations of 0.6, 0.4 and 0.2mg/L. The best condition was 0.2 mgO2/L with a total nitrogen removal of 75.36% with a CANON reactor activity of 0.1149gN/gVVSd and high stability. The feasibility and effectiveness of CANON processes with oxygen control was demonstrated, showing an alternative design tool for efficiently removing nitrogen species.
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Affiliation(s)
- Rodrigo Varas
- Departamento de Ingeniería Química, Universidad de Concepción, Casilla 160 C Correo 3, Concepción, Chile
| | - Víctor Guzmán-Fierro
- Departamento de Ingeniería Química, Universidad de Concepción, Casilla 160 C Correo 3, Concepción, Chile
| | - Elisa Giustinianovich
- Departamento de Ingeniería Química, Universidad de Concepción, Casilla 160 C Correo 3, Concepción, Chile
| | - Jack Behar
- Departamento de Ingeniería Química, Universidad de Concepción, Casilla 160 C Correo 3, Concepción, Chile
| | - Katherina Fernández
- Departamento de Ingeniería Química, Universidad de Concepción, Casilla 160 C Correo 3, Concepción, Chile
| | - Marlene Roeckel
- Departamento de Ingeniería Química, Universidad de Concepción, Casilla 160 C Correo 3, Concepción, Chile.
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