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Moradihamedani P. Recent developments in membrane technology for the elimination of ammonia from wastewater: A review. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03386-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Fiat J, Filali A, Fayolle Y, Bernier J, Rocher V, Spérandio M, Gillot S. Considering the plug-flow behavior of the gas phase in nitrifying BAF models significantly improves the prediction of N 2O emissions. WATER RESEARCH 2019; 156:337-346. [PMID: 30928528 DOI: 10.1016/j.watres.2019.03.047] [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: 11/20/2018] [Revised: 03/21/2019] [Accepted: 03/24/2019] [Indexed: 06/09/2023]
Abstract
Nitrifying biologically active filters (BAFs) have been found to be high emitters of nitrous oxide (N2O), a powerful greenhouse gas contributing to ozone layer depletion. While recent models have greatly improved our understanding of the triggers of N2O emissions from suspended-growth processes, less is known about N2O emissions from full-scale biofilm processes. Tertiary nitrifying BAFs have been modeled at some occasions but considering strong simplifications on the description of gas-liquid exchanges which are not appropriate for N2O prediction. In this work, a tertiary nitrifying BAF model including the main N2O biological pathways was developed and confronted to full-scale data from Seine Aval, the largest wastewater resource recovery facility in Europe. A mass balance on the gaseous compounds was included in order to correctly describe the N2O gas-liquid partition, thus N2O emissions. Preliminary modifications of the model structure were made to include the gas phase as a compartment of the model, which significantly affected the prediction of nitrification. In particular, considering gas hold-up influenced the prediction of the hydraulic retention time, thus nitrification performances: a 3.5% gas fraction reduced ammonium removal by 13%, as the liquid volume, small in such systems, is highly sensitive to the gas presence. Finally, the value of the volumetric oxygen transfer coefficient was adjusted to successfully predict both nitrification and N2O emissions.
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Affiliation(s)
- Justine Fiat
- Irstea, UR HBAN, CS 10030, F-92761, Antony Cedex, France
| | - Ahlem Filali
- Irstea, UR HBAN, CS 10030, F-92761, Antony Cedex, France.
| | | | - Jean Bernier
- SIAAP, Direction Innovation Environnement, 92700, Colombes, France
| | - Vincent Rocher
- SIAAP, Direction Innovation Environnement, 92700, Colombes, France
| | | | - Sylvie Gillot
- Irstea, UR REVERSAAL, F-69626, Villeurbanne Cedex, France
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Son DJ, Yun CY, Kim WY, Zhang XY, Kim DG, Chang D, Sunwoo Y, Hong KH. Integrated nitrogen removal biofilter system with ceramic membrane for advanced post-treatment of municipal wastewater. ENVIRONMENTAL TECHNOLOGY 2016; 37:2975-2983. [PMID: 27108849 DOI: 10.1080/09593330.2016.1173113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The pre-denitrification biofilm process for nitrogen removal was combined with ceramic membrane with pore sizes of 0.05-0.1 µm as a system for advanced post-treatment of municipal wastewater. The system was operated under an empty bed hydraulic retention time of 7.8 h, recirculation ratio of 3, and transmembrane pressure of 0.47 bar. The system showed average removals of organics, total nitrogen, and solids as high as 93%, 80%, and 100%, respectively. Rapid nitrification could be achieved and denitrification was performed in the anoxic filter without external carbon supplements. The residual particulate organics and nitrogen in effluent from biofilm process could be also removed successfully through membrane filtration and the removal of total coliform was noticeably improved after membrane filtration. Thus, a system composed of the pre-denitrification biofilm process with ceramic membrane would be a compact and flexible option for advanced post-treatment of municipal wastewater.
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Affiliation(s)
- Dong-Jin Son
- a Department of Advanced Technology Fusion , Konkuk University , Seoul , Korea
| | - Chan-Young Yun
- b Department of Environmental Engineering , Konkuk University , Seoul , Korea
| | - Woo-Yeol Kim
- b Department of Environmental Engineering , Konkuk University , Seoul , Korea
| | - Xing-Ya Zhang
- b Department of Environmental Engineering , Konkuk University , Seoul , Korea
| | - Dae-Gun Kim
- c Materials & Membranes Co., Ltd ., Seoul , Korea
| | - Duk Chang
- b Department of Environmental Engineering , Konkuk University , Seoul , Korea
| | - Young Sunwoo
- b Department of Environmental Engineering , Konkuk University , Seoul , Korea
| | - Ki-Ho Hong
- d Division of Interdisciplinary Studies , Konkuk University , Seoul , Korea
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Bollon J, Filali A, Fayolle Y, Guerin S, Rocher V, Gillot S. N2O emissions from full-scale nitrifying biofilters. WATER RESEARCH 2016; 102:41-51. [PMID: 27318446 DOI: 10.1016/j.watres.2016.05.091] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 04/29/2016] [Accepted: 05/29/2016] [Indexed: 06/06/2023]
Abstract
A full-scale nitrifying biofilter was continuously monitored during two measurement periods (September 2014; February 2015) during which both gaseous and liquid N2O fluxes were monitored on-line. The results showed diurnal and seasonal variations of N2O emissions. A statistical model was run to determine the main operational parameters governing N2O emissions. Modification of the distribution between the gas phase and the liquid phase was observed related to the effects of temperature and aeration flow on the volumetric mass transfer coefficient (kLa). With similar nitrification performance values, the N2O emission factor was twice as high during the winter campaign. The increase in N2O emissions in winter was correlated to higher effluent nitrite concentrations and suspected increased biofilm thickness.
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Affiliation(s)
- Julien Bollon
- Irstea, UR HBAN, 1 Rue Pierre-Gilles de Gennes, CS 10030, F-92761 Antony Cedex, France
| | - Ahlem Filali
- Irstea, UR HBAN, 1 Rue Pierre-Gilles de Gennes, CS 10030, F-92761 Antony Cedex, France.
| | - Yannick Fayolle
- Irstea, UR HBAN, 1 Rue Pierre-Gilles de Gennes, CS 10030, F-92761 Antony Cedex, France
| | - Sabrina Guerin
- SIAAP, Direction du Développement et de la Prospective, 82 avenue Kléber, F-92700 Colombes, France
| | - Vincent Rocher
- SIAAP, Direction du Développement et de la Prospective, 82 avenue Kléber, F-92700 Colombes, France
| | - Sylvie Gillot
- Irstea, UR MALY, 5 rue de la Doua, CS 70077, F-69626 Villeurbanne Cedex, France
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Bernier J, Rocher V, Lessard P. Initial and hourly headloss modelling on a tertiary nitrifying wastewater biofiltration plant. ENVIRONMENTAL TECHNOLOGY 2015; 37:1188-1196. [PMID: 26508557 DOI: 10.1080/09593330.2015.1107622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The headloss prediction capability of a wastewater biofiltration model is evaluated on data from a full-scale tertiary nitrifying biofilter unit located in the Paris conurbation (Achères, France; 6,000,000 population equivalent). The model has been previously calibrated on nutrient conversion and TSS filtration observations. In this paper the mass of extracted biofilm during biofilter backwash and the headloss value at the start of an operation cycle are first calibrated on sludge production estimations and relative pressure measurements over the year 2009. The calibrated model is then used on two one-month periods in 2012 for which hourly headloss measurements were acquired. The observed trends are correctly predicted for 2009 but the model exhibits some heavy daily variation that is not found in measurements. Hourly predictions stay close to observations, although the model error rises slightly when the headloss does not vary much. The global model shows that both nutrient conversion and headloss build-up can be reasonably well predicted at the same time on a full-scale plant.
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Affiliation(s)
- Jean Bernier
- a Département de génie civil et de génie des eaux , Université Laval , Québec , Canada , G1V 0A6
- b SIAAP - Direction du Développement et de la Prospective , Colombes , France
| | - Vincent Rocher
- b SIAAP - Direction du Développement et de la Prospective , Colombes , France
| | - Paul Lessard
- a Département de génie civil et de génie des eaux , Université Laval , Québec , Canada , G1V 0A6
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Almutairi A, Weatherley LR. Intensification of ammonia removal from waste water in biologically active zeolitic ion exchange columns. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 160:128-138. [PMID: 26112985 DOI: 10.1016/j.jenvman.2015.05.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 05/21/2015] [Accepted: 05/25/2015] [Indexed: 06/04/2023]
Abstract
The use of nitrification filters for the removal of ammonium ion from waste-water is an established technology deployed extensively in municipal water treatment, in industrial water treatment and in applications such as fish farming. The process involves the development of immobilized bacterial films on a solid packing support, which is designed to provide a suitable host for the film, and allow supply of oxygen to promote aerobic action. Removal of ammonia and nitrite is increasingly necessary to meet drinking water and discharge standards being applied in the US, Europe and other places. Ion-exchange techniques are also effective for removal of ammonia (as the ammonium ion) from waste water and have the advantage of fast start-up times compared to biological filtration which in some cases may take several weeks to be fully operational. Here we explore the performance of ion exchange columns in which nitrifying bacteria are cultivated, with the goal of a "combined" process involving simultaneous ion-exchange and nitrification, intensified by in-situ aeration with a novel membrane module. There were three experimental goals. Firstly, ion exchange zeolites were characterized and prepared for comparative column breakthrough studies for ammonia removal. Secondly effective in-situ aeration for promotion of nitrifying bacterial growth was studied using a number of different membranes including polyethersulfone (PES), polypropylene (PP), nylon, and polytetra-fluoroethylene (PTFE). Thirdly the breakthrough performance of ion exchange columns filled with zeolite in the presence of aeration and in the presence of nitrifying bacteria was determined to establish the influence of biomass, and aeration upon breakthrough during ammonium ion uptake. The methodology adopted included screening of two types of the naturally occuring zeolite clinoptilolite for effective ammonia removal in continuous ion-exchange columns. Next, the performance of fixed beds of clinoptilolite in the presence of nitrifying bacteria is compared to that in columns in which only ion exchange is occurring. The aeration performance of each of the chosen membranes was compared experimentally using a newly developed membrane support module which is also described. Comparison of ammonia removal in columns equipped with in-situ aeration using each membrane was undertaken and the breakthrough characteristics determined. The results showed that ammonia removal in the presence of the nitrifiers was significantly intensified. Column operation with membrane aeration showed further enhancement of ammonia removal. The greatest enhancement was observed in the case of the polyethersulfone membrane (PES). It is concluded that combined nitrification and ion-exchange is significantly intensified in packed columns by in-situ aeration using a novel membrane module. There is significant potential for extending the ion-exchange cycle time and thus potential cost reduction.
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Affiliation(s)
- Azel Almutairi
- Department of Chemical and Petroleum Engineering, The University of Kansas, Lawrence, KS 66045, USA.
| | - Laurence R Weatherley
- Department of Chemical and Petroleum Engineering, The University of Kansas, Lawrence, KS 66045, USA.
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