Relevant bibliographies by topics / Anaerobic digestion sludge

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Anaerobic digestion sludge'

Author: Grafiati
Published: 5 September 2021
Last updated: 29 July 2025

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Journal articles on the topic "Anaerobic digestion sludge"

1

Zhao, Guo Han, and Shun Sheng Yang. "Analysis of Changes in Gas Composition during Startup Process." Applied Mechanics and Materials 484-485 (January 2014): 423–26. http://dx.doi.org/10.4028/www.scientific.net/amm.484-485.423.

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Start is an important link of sludge anaerobic digestion process, it is can according to the sludge disposal in sludge volume and there is no vaccination to select the startup method. Gas components are the important study-factors of anaerobic digestive startup, to visually reflect the stability of the anaerobic digestion of the startup process, in order to accurately analyze the causes of imbalance of anaerobic digestion process, to guide the anaerobic digestion system startup.
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Zhao, Zehua, Yuanshun Xu, Tianfeng Wang, Xiaowei Xu, Houhu Zhang, and Jing Hua. "Effects of sludge properties in a combined process of mesophilic anaerobic digestion and thermophilic aerobic digestion." E3S Web of Conferences 194 (2020): 04015. http://dx.doi.org/10.1051/e3sconf/202019404015.

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The combination of mesophilic anaerobic digestion and thermophilic aerobic digestion (MAN-TAD) has been recognized as a suitable technology to deal with conventional activated sludge. The MAN-TAD system can make sludge achieve better stability. The retention time of anaerobic digestion (AD-time) had an important role in the sludge stabilization process. With the extension of anaerobic digestion retention time, MAN-TAD system can make sludge achieve better stability. In comparison, volatile/total solids ratio (VS/TS) at AD-time of 38 d presented the lowest values among the three different AD-ti
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Xie, Li Ping, and Xia Wu. "Effect of Wastewater Treatment Processes on the Combustion Properties of Sewage Sludge." Advanced Materials Research 113-116 (June 2010): 1153–57. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.1153.

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The combustion properties of five different sewage sludges were studied by thermal gravimetric analysis in the atmosphere of “oxygen”and “nitrogen + oxygen”, respectively. The results indicate that there are not influence of wastewater treatment process and the sludges anaerobic digestion on the combustion process, but both of the “anaerobic” wastewater treatment and the sludge anaerobic digestion make the ignition temperature of sludge higher, and the temperature of anaerobic digestion sludge is the highest. The relationship among the ignition temperatures of five sludges is independent of co
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Park, C., and R. F. Helm. "Application of metaproteomic analysis for studying extracellular polymeric substances (EPS) in activated sludge flocs and their fate in sludge digestion." Water Science and Technology 57, no. 12 (2008): 2009–15. http://dx.doi.org/10.2166/wst.2008.620.

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Metaproteomic analysis, comprising protein separation and identification, was applied to study extracellular proteins in activated sludges and to track their fate in sludge digestion under both anaerobic and aerobic conditions. The complex sludge proteins were first separated by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and further analysed by liquid chromatography tandem mass spectrometry (LC-MS/MS) to search their identification. Base extraction and cation exchange resin (CER) method were used to extract EPS from sludges at 0, 12 and 30 days of batch digestion. Se
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Reimers, R. S., D. B. McDonell, M. D. Little, D. D. Bowman, A. J. Englande, and W. D. Henriques. "Effectiveness of Wastewater Sludge Treatment Processes to Inactivate Parasites." Water Science and Technology 18, no. 7-8 (1986): 397–404. http://dx.doi.org/10.2166/wst.1986.0314.

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In the United States, Ascaris spp., Trichuris trichiura, Trichuris vulpis and Toxocara spp. are the most commonly found viable parasites in both treated and untreated municipal sludges. As expected, heat treatment, thermophilic digestion (aerobic and anaerobic) and thermophilic composting were effective in parasite inactivation, and with good sludge digestion (both aerobic and anaerobic), the effectiveness of sludge lagoon storage and sludge drying beds to inactivate parasites and pathogens is greatly enhanced. At present two commercial sludge processes, Chemfixation and Ozonics treatment have
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Watanabe, Haruki, Tomokazu Kitamura, Shuichi Ochi, and Masaaki Ozaki. "Inactivation of pathogenic bacteria under mesophilic and thermophilic conditions." Water Science and Technology 36, no. 6-7 (1997): 25–32. http://dx.doi.org/10.2166/wst.1997.0571.

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This paper concerns field survey and laboratory experiment on the inactivation of pathogenic bacteria during sludge treatment processes with particular emphasis on anaerobic digestion process. We surveyed the inactivation of pathogenic bacteria processes by sampling various types of sludges from 17 wastewater treatment plants located in Japan and counting the number of bacteria in the sampled sludges. The bacteria we counted included fecal coliform groups, enterococcus and salmonella. The median number of fecal coliform groups in primary sludge was found to be 105 MPN/g, while the number of fe
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Jones, R., W. Parker, Z. Khan, S. Murthy, and M. Rupke. "Characterization of sludges for predicting anaerobic digester performance." Water Science and Technology 57, no. 5 (2008): 721–26. http://dx.doi.org/10.2166/wst.2008.013.

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Batch anaerobic digestion tests of primary sludge and waste activated sludge were conducted for a duration of 123 days to determine the ultimate degradability of the sludges. For primary sludges the inert fraction of the particulate COD that was predicted by the wastewater models could be employed to predict their biodegradability under anaerobic conditions. The degradation of waste activated sludge was adequately characterized for the first 60 days of digestion using a model that assumed equivalent biodegradability of particulate COD components under aerobic and anaerobic conditions. However
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Wichitsathian, Boonchai, Jareeya Yimratanabovorn, and Watcharapol Wonglertarak. "Enhancement of performance and biodegradability kinetics of aerobic-anaerobic sludge digestion." E3S Web of Conferences 167 (2020): 01010. http://dx.doi.org/10.1051/e3sconf/202016701010.

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The excess sludge problem from a wastewater treatment plant is a great concerned due to the high cost of sludge management accounting for about 20% to 50% of the total operating cost. Therefore, sludge reduction is critical. Currently, aerobic and/or anaerobic sludge digestions are widely used in the industries for treating the excess sludge. The objective of this research was to study the effects of aeration rate and temperature on the excess sludge reduction by using the aerobic-anaerobic digestion system in the laboratory. The aeration rates of 1.0, 0.5, and 0.1 volume air per volume slurry
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Kindzierski, Warren B., and Steve E. Hrudey. "Effects of phosphorus removal chemicals upon methane production during anaerobic sludge digestion." Canadian Journal of Civil Engineering 13, no. 1 (1986): 33–38. http://dx.doi.org/10.1139/l86-005.

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Aluminum sulphate (alum) and ferric chloride are commonly employed to aid phosphorus removal in wastewater treatment. Previous studies have indicated that these chemical coagulants produce sludges that adversely affect anaerobic digestion. The objective of this study was to assess the magnitude of the effects chemical coagulants have upon methane generation in anaerobic digestion. Methane production was monitored and concentrations of aluminum or iron present during batch digestion of chemically precipitated sludge were measured.Both alum and ferric chloride addition to activated sludge produc
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Ye, Fenxia, Xinwen Liu, and Ying Li. "Extracellular polymeric substances and dewaterability of waste activated sludge during anaerobic digestion." Water Science and Technology 70, no. 9 (2014): 1555–60. http://dx.doi.org/10.2166/wst.2014.401.

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Anaerobic digestion of waste activated sludge was conducted to gain insight into the mechanisms underlying change in sludge dewaterability during its anaerobic digestion. Unexpectedly, the results indicated that sludge dewatering properties measured by capillary suction time only deteriorated after 10 days of anaerobic digestion, after which dewaterability recovered and remained stable. The loosely bound extracellular polymeric substance (LB-EPS) content increased three-fold after 20 days of anaerobic digestion, and did not change significantly during the remaining 30 days. The tightly bound E
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Dissertations / Theses on the topic "Anaerobic digestion sludge"

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Lafitte-Trouque, Sandrine. "Enhanced anaerobic digestion of sewage sludge." Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369392.

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Tanneru, Charan Tej. "Anaerobic and Combined Anaerobic/Aerobic Digestion of Thermally Hydrolyzed Sludge." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/45880.

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Sludge digestion has gained importance in recent year because of increasing interest in energy recovery and public concern over the safety of land applied biosolids. Many new alternatives are being researched for reducing excess sludge production and for more energy production. With an increase in solids destruction, the nutrients that are contained in sludge especially nitrogen, are released to solution and can be recycled as part of filtrate or centrate stream. Nitrogen has gained importance because it has adverse effects on ecosystem's as well as human health. NH₄⁺, NO₂⁻, NO₃⁻-, and org
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Yi, Weigang. "Innovative sludge pretreatment technologies and enhanced anaerobic digestion." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43650.

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This dissertation reports the research findings from an investigation into the use of four technologies for municipal wastewater sludge pre-digestion treatment. The technologies explored include microwave, the microwave / hydrogen peroxide process, ultrasound and biological enzyme protease treatment. The general purpose of the sludge pretreatment applications is to improve anaerobic digestion efficiency in terms of biogas production, organic reduction and nutrient recovery. An examination was first carried out on the effects of these technologies on sludge solubilization (disintegration and h
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Yan, Jing-Qing. "Anaerobic digestion of cheese whey in an upflow anaerobic sludge blanket reactor." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/31898.

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The anaerobic digestion of cheese whey was studied in an upfiow anaerobic sludge blanket reactor for its start-up characteristics, the effects of various process parameters, the effect of sulfate addition and the determination of optimal operating conditions. Start-up of an UASB reactor treating cheese whey was extremely difficult due to its tendency to acidify. Various start-up strategies were tested to facilitate start-up and to ensure stable operation. Among the operating parameters, sludge loading rate was the most critical for proper start-up of the UASB reactor. The initial sludge loadi
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Premier, Giuliano C. "Toward simple generic control in anaerobic digestion." Thesis, University of South Wales, 2003. https://pure.southwales.ac.uk/en/studentthesis/toward-simple-generic-control-in-anaerobic-digestion(eb3e3942-bb11-4eb3-9831-8585bd30936e).html.

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The desirability of effective control of anaerobic digesters as a means of avoiding imbalance in the microbial population has become clearer and this can be seen from the literature in recent years. A number of published control strategies have been encouragingly successful, however the non-linear and time varying nature of the process generally requires a bespoke, engineered system dependant on the characteristics of the system. The 'cost of knowing' in employing control systems, is generally high. The ideal scenario for operators would be the availability of a generic control system at reaso
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Chari, Pooja Surendra. "Anaerobic Co-Digestion of Food waste and Primary Sludge." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491561610829611.

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Silvestre, Tormo Gracia. "Sewage sludge anaerobic digestion : study of synergies and operational strategies of co-digestion." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/334688.

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Wastewater treatment plants (WWTPs) are characterized by their high organic matter and nutrient removal efficiency, but also by their high energy consumption. In the current context where resources are increasingly scarce, all feasible strategies to save energy emerge as an important issue for the sustainable management of WWTPs. In this thesis, sewage sludge (SS) anaerobic co-digestion with available organic wastes, coming from different sources and having different compositions, was proposed as an interesting strategy to approach an energy self-sufficient scenario for wastewater treatment b
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Hermana, Joni. "Enhancing anaerobic digestion by manipulation of acidogenesis-methanogenesis phases during two-phase anaerobic system." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362518.

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Gabriel, Coelho Nuno Miguel. "Application of Microwaves and Thermophilic Anaerobic Digestion to Wastewater Sludge Treatment." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22763.

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Anaerobic digestion of waste activated sludge can be improved if hydrolysis of particulate substrates is enhanced and available substrate is made more accessible by both breakup of the sludge matrix floc and rupture of the cell wall. Microwave (MW) pretreatment was suggested and studied as a way to improve digestion efficiency. The work done focuses on the effects of MW pretreatment on the characteristics of the sludge, due to thermal and athermal effects. It also evaluates the effects some process variables in the activated sludge process have on the pretreatment efficiency as well as the eff
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Hamzawi, Nancy. "Anaerobic co-digestion of municipal solid waste and sewage sludge." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq21990.pdf.

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Books on the topic "Anaerobic digestion sludge"

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Water Pollution Control Federation. Task Force on Anaerobic Sludge Digestion., ed. Anaerobic sludge digestion. 2nd ed. Water Pollution Control Federation, 1987.

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Lafitte-Trouqué, Sandrine. Enhanced anaerobic digestion of sewage sludge. University of Birmingham, 2001.

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Palfrey, R. N. The thermophilic aerobic/mesophilic anaerobic sludge digestion process. Foundation for Water Research, 1993.

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M, Bruce A., Kouzeli-Katsiri A, Newman P. J, and Commission of the European Communities. Environment Research Program., eds. Anaerobic digestion of sewage sludge and organic agricultural wastes. Elsevier Applied Science Publishers, 1986.

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Hosemann, Andreas. Anaerobic digestion of sewage sludge introducing a hydraulic flush. UMIST, 1995.

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Gerardi, Michael H. The microbiology of anaerobic digesters. John Wiley, 2003.

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Stronach, S. M. Anaerobic digestion processes in industrial waste-water treatment. Springer-Verlag, 1986.

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Kugelman, Irwin J. Comparative evaluation of mesophilic and thermophilic anaerobic digestion. U.S. Environmental Protection Agency, Risk Reduction Engineering Laboratory, 1989.

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Kugelman, Irwin J. Comparative evaluation of mesophilic and thermophilic anaerobic digestion. U.S. Environmental Protection Agency, Risk Reduction Engineering Laboratory, 1989.

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Andrew, Wheatley, ed. Anaerobic digestion: A waste treatment technology. Elsevier Applied Science, 1990.

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Book chapters on the topic "Anaerobic digestion sludge"

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Long, David A. "Anaerobic Sludge Digestion." In Biological Treatment Processes. Humana Press, 1986. http://dx.doi.org/10.1007/978-1-4612-4820-0_10.

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Celenza, Gaetano Joseph. "Anaerobic Waste Treatment—Anaerobic Sludge Digestion." In Industrial Waste Treatment Processes Engineering. CRC Press, 2024. http://dx.doi.org/10.1201/9781003579014-7.

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Show, Kuan-Yeow, Duu-Jong Lee, and Joo-Hwa Tay. "Anaerobic Digestion of Sewage Sludge." In Biological Sludge Minimization and Biomaterials/Bioenergy Recovery Technologies. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118309643.ch10.

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Yagna Prasad, K. "Gas Mixing in Anaerobic Sludge Digestion." In Handbook of Water and Used Water Purification. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-66382-1_44-1.

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K., Yagna Prasad. "Gas Mixing in Anaerobic Sludge Digestion." In Handbook of Water and Used Water Purification. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-319-78000-9_44.

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Show, Kuan Yeow, Joo Hwa Tay, and Yung-Tse Hung. "Ultrasound Pretreatment of Sludge for Anaerobic Digestion." In Environmental Bioengineering. Humana Press, 2010. http://dx.doi.org/10.1007/978-1-60327-031-1_2.

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López, M., S. Montalvo, A. Freyges, M. Ruiz, and O. Correa. "Behaviour of Presolubilized Sludge in Anaerobic Digestion." In Environmental Biotechnology. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-1435-8_51.

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Goodloe, J. C., H. M. Kitsos, A. J. Meyers, J. S. Hubbard, and R. S. Roberts. "Anaerobic Digestion of Industrial Activated Aerobic Sludge." In ACS Symposium Series. American Chemical Society, 1993. http://dx.doi.org/10.1021/bk-1993-0518.ch012.

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K., Yagna Prasad. "External Pump Mixing in Anaerobic Sludge Digestion." In Handbook of Water and Used Water Purification. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-319-78000-9_45.

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Yagna Prasad, K. "External Pump Mixing in Anaerobic Sludge Digestion." In Handbook of Water and Used Water Purification. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-319-66382-1_45-1.

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Conference papers on the topic "Anaerobic digestion sludge"

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Hosseini, Erfan, Selen Cremaschi, and Zhihua Jiang. "Techno-Economic Analysis of Methane Production from Pulp and Paper Sludge." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.129762.

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This study investigates the feasibility of valorizing pulp and pulp sludge (PPS) into methane through anaerobic digestion (AD) with a focus on techno-economic analysis (TEA). Three scenarios are evaluated: (A) the base case, (B) sludge AD with alkaline pretreatment using green liquor dregs (GLD), and (C) co-digestion with nitrogen-rich feedstocks. The evaluation is applied to a common PPS, consisting of 70% primary sludge (PS) from the primary clarifier and 30% secondary sludge (SS) from biological treatments from a kraft mill. Theoretical methane potential (TMP) is determined using the Buswel
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El Achkar, Jean H., Abrar Ben Husain, Nadeen Alotaibi, et al. "Could Petroleum Sludge be Used to Produce Biomethane as a Renewable Energy Source?" In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210953-ms.

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Abstract During the exploration, production, and refining of crude oil, as well as the effluent treatment facilities of refineries, the petroleum sector produces a substantial quantity of sludge. This review offers in-depth insights into the methods used to treat and dispose of petroleum sludge today. It also explores the possibility of valorizing such waste while converting it to a sustainable energy source using anaerobic digestion technology. Aside from health concerns, the random disposal of untreated petroleum sludge causes land pollution, water pollution, and ecosystem devastation. Conse
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Marković, Teodora, Nikola Pilipović, Vladanka Presburger Ulniković, and Violeta Cibulić. "ANAEROBIC DIGESTION OF WASTE SLUDGE FROM WASTEWATER TREATMENT PLANTS- CONTEMPORARY TRENDS AND PERSPECTIVES." In 53rd Annual Conference of the Serbian Water Pollution Control Society. SERBIAN WATER POLLUTION CONTROL SOCIETY, 2024. http://dx.doi.org/10.46793/voda24.327m.

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The disposal of sewage sludge presents a long-term environmental challenge. This paper explores the process of anaerobic digestion and an innovative technique involving microwave oven drying for sludge treatment. Following anaerobic digestion, the organic solid matter and biogas are utilized to produce activated charcoal using microwave drying. This method reduces the volume of sludge and allows its utilization in water purification and building materials. The aim is to minimize waste and generate safe products. This multidisciplinary approach contributes to long-term environmental preservatio
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He, Su-wei, Ying-he Jiang, and Yan Liang. "Study of Enhancing Anaerobic Digestion of Sludge through Adding Microzyme." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5517995.

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Andryszak, Robert J., Nicholas H. Frankos, and Theresa A. Bruton. "Anaerobic Sludge Digestion at Baltimore's Back River Wastewater Treatment Plant." In Fifth National History and Heritage Congress at ASCE Civil Engineering Conference and Exposition. American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40759(152)8.

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Kunukcu, Y. Kaçar, and U. Wiesmann. "Activated Sludge Treatment and Anaerobic Digestion of Opium Alkaloid Factory." In World Water and Environmental Resources Congress 2004. American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)291.

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Kuusik, Argo, Karin Pachel, Aare Kuusik, and Enn Loigu. "Anaerobic co-digestion of sewage sludge with fish farming waste." In The 9th International Conference "Environmental Engineering 2014". Vilnius Gediminas Technical University Press “Technika” 2014, 2014. http://dx.doi.org/10.3846/enviro.2014.084.

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Cao, X. Q., A. N. Chen, D. F. Zhao, et al. "Upgrading of anaerobic digestion of sewage sludge by sludge thickening and ultrasonic pre-treatment." In 3rd International Conference on Contemporary Problems in Architecture and Construction. IET, 2011. http://dx.doi.org/10.1049/cp.2011.1259.

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Chin, S. K., D. T. Tan, H. M. Tan, and P. E. Poh. "Preservation of mesophilic mixed culture for anaerobic palm oil mill effluent treatment by convective drying methods." In 21st International Drying Symposium. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7295.

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While anaerobic digestion is a reliable method that treats the waste and produces renewable biomethane fuel, the necessary sludge in liquid form is difficult to handle due to the constant biogas generation. Therefore, this study investigates the possibility of convective air drying, namely heat pump and hot air circulation oven as preservation methods for anaerobic microbial sludge. Drying was conducted at various temperatures, ranging from 22℃ to 70℃. The study found that heat pump drying at 22℃ resulted in highest COD removal of 55.3% as well as the least log reduction in methanogens and ana
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Manea, Elena. "EVALUATION OF ENERGY CONSUMPTION IN ANAEROBIC DIGESTION OF WASTEWATER TREATMENT SLUDGE." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2015/b52/s20.029.

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Reports on the topic "Anaerobic digestion sludge"

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Asvapathanagul, Pitiporn, Leanne Deocampo, and Nicholas Banuelos. Biological Hydrogen Gas Production from Food Waste as a Sustainable Fuel for Future Transportation. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2021.2141.

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In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims
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Asvapathanagul, Pitiporn, Leanne Deocampo, and Nicholas Banuelos. Biological Hydrogen Gas Production from Food Waste as a Sustainable Fuel for Future Transportation. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2022.2141.

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In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims
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Ahring, Birgitte. “An Advanced Pretreatment/Anaerobic Digestion (APAD) Technology for Increased Conversion of Sewage Sludge to Bio-natural Gas in Small-scale Wastewater Plants of less than Five tons Sewage Sludge a Day”. Office of Scientific and Technical Information (OSTI), 2024. https://doi.org/10.2172/2480363.

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Van Rijn, Jaap, Harold Schreier, and Yossi Tal. Anaerobic ammonia oxidation as a novel approach for water treatment in marine and freshwater aquaculture recirculating systems. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7696511.bard.

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Ammonia waste removal in recirculating aquaculture systems is typically accomplished via the action of nitrifying bacteria in specially designed biofilters that oxidize ammonia to produce nitrate. In the majority of these systems nitrate is discharged to the environment through frequent water exchanges. As environmental considerations have made it necessary to eliminate nitrate release, new strategies for nitrate consumption are being developed. In the funding period we showed that ammonia removal from wastewater could take place by an anaerobic ammonia oxidation process carried out by bacteri
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