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Showing 1 to 9 of 9 for “"Partial nitrification"”.
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Experimental testing and modeling of partial nitrification at different temperatures
… removal (BNR) processes consume high energy for nitrification and require external carbon for denitrification. Alternatively, partial nitrification is of interest as an emerging technology for its lower need of organic carbon addition and cost savings in aeration. In this study, the main …
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Partial nitrification and oxygen transfer analysis utilizing hollow fiber membrane aeration
… : NO<sub>2</sub><sup>–</sup> ratio, a partial nitrification system is coupled with the ANAMMOX system to provide the necessary substrates.y A hollow fiber membrane reactor was employed to create this partial nitrification system.y Gas mass transfer was first evaluated to determine the …
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Development of High Efficiency Partial Nitrification as a First Step of Nitrite Shunt Process using Ammonium-Oxidizing Bacteria (AOB)
… deammonification. In this research, a complete partial nitrification as a first step of the Nitrite Shunt process has been developed under a high nitrogen loading rate (NLR) using a novel strategy to control the DO depending on using a constant air flow rate with a variable mixing speed using a …
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Optimization of Nitrogen Removal Rate in One-Stage Reactor through Partial Nitrification Anammox Process during Direct Treatment of Poultry Litter Wastewater
… at optimizing the nitrogen removal rate through partial nitrification anammox process (PN/A) to treat synthetic poultry litter wastewater. Nitrogen removal efficiencies will therefore be improved through optimizing the combination of three operating parameters including hydraulic retention time …
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Carbon-efficient Wastewater Treatment Through Resource Recovery, Process Intensification, and Partial Denitrification Anammox
… eliminate the energy consuming MLR, endogenous denitrification was taken advantage through a synergistic integration with partial nitrification, partial denitrification anammox (PdNA), and enhanced biological phosphorus removal (EBPR). This idea was tested in a pilot setup treating real primary …
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Treatment of High-Strength Nitrogen Wasetewater With a Hollow-Fiber Membrane-Aerated Biofilm Reactor: A Comprehensive Evaluation
… the coupling of two autotrophic metabolisms, partial nitrification to nitrite (nitritation) and anaerobic ammonium oxidation, was demonstrated in a single HFMBR. The system successfully treated a high-strength nitrogen wastewater intended to mimic a urine stream from such sources as extended …
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Novel Reactors for Biological Treatment of High Strength Nitrogen and Carbon Wastewater
… long-term operation of a simple two-stage partial nitrification-anammox reactor treating separated-source urine wastewater. A membrane aerated biological reactor (MABR) and Pancopia (foam-based) anammox (PAX) reactor were used to accomplish PN and Anammox processes, respectively. The second …
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A Comparison of Wastewater Process Modelling Tools: Case Study of Potsdam WWTW
… sludge ages close to the minimum sludge age for nitrification, this parameter impacts severely on the performance of biological nitrogen removal systems. It was concluded that substantial changes in the influent TKN, µMax and RBCOD will significantly impact a WWTW, specifically concerning N and P …
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Sviluppo di tecnologie alternative per il trattamento biologico di reflui ad elevato contenuto di azoto
… treatment by ANAMMOX or heterotrophic denitrification via nitrite. The ANAMMOX process was shown to be more sensitive to the inhibitory compounds contained in the real wastewater. In particular, the research activity has shown that the extreme variability of industrial refinery …