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Environmental Science & Technology, 2016 © 2016 American Chemical Society. Recent studies have shown that sulfide- and sulfur-based autotrophic denitrification (AD) processes play an important role in contributing to nitrous oxide (N2O) production and emissions.
Yiwen Liu, Lai Peng, Huu Hao Ngo
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Autotrophic Ammonia Removal Processes: Ecology to Technology
Critical Reviews in Environmental Science and Technology, 2012The last decade has witnessed rapid spur in technoeconomic autotrophic ammonia removal technologies for wastewater treatment such as SHARON, ANAMMOX, SNAD, CANON, OLAND, DEMON, and BABE. These technologies have the potential to remove high concentrations of ammonia in wastewaters.
Samik Bagchi, Rima Biswas, Tapas Nandy
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Bioresource Technology, 2013
The ratio of autotrophic denitrification (Rauto) is proposed as a metric to better evaluate the nitrate removal efficiency of bioelectrochemical systems (BESs). Two methods for computing Rauto were compared, one based on electron charge transfer and the other on a controlled reaction.
Baocheng, Huang +5 more
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The ratio of autotrophic denitrification (Rauto) is proposed as a metric to better evaluate the nitrate removal efficiency of bioelectrochemical systems (BESs). Two methods for computing Rauto were compared, one based on electron charge transfer and the other on a controlled reaction.
Baocheng, Huang +5 more
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Integrating anammox with the autotrophic denitrification process via electrochemistry technology
Chemosphere, 2018In this study, an autotrophic denitrification process was successfully coupled with anammox to remove the nitrate by-product via electrochemical technology. When the voltage applied to the combined electrode reactor was 1.5 V, the electrode reaction removed nitrate by using the autotrophic denitrification biomass without affecting the anammox biomass ...
Sen, Qiao +4 more
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Journal of Hazardous Materials, 2009
An anaerobic attached-growth bioreactor (AAGBR) of 3.52 L was operated for 510 days to treat sulfide-laden organic wastewater where nitrate and nitrite were introduced as electron acceptors. When the influent sulfide was kept at 200mg S(2-)-S/L and organic carbon was increased from 20 to 33.6 mg C/L, and the hydraulic retention time decreased from 41.4
Wei, Li, Qing-Liang, Zhao, Hao, Liu
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An anaerobic attached-growth bioreactor (AAGBR) of 3.52 L was operated for 510 days to treat sulfide-laden organic wastewater where nitrate and nitrite were introduced as electron acceptors. When the influent sulfide was kept at 200mg S(2-)-S/L and organic carbon was increased from 20 to 33.6 mg C/L, and the hydraulic retention time decreased from 41.4
Wei, Li, Qing-Liang, Zhao, Hao, Liu
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A Novel Membrane Process for Autotrophic Denitrification
Water Intelligence Online, 2015Biological denitrification by heterotrophic bacteria is common in the wastewater industry in the U.S. and in drinking water processing in Europe.To facilitate heterotrophic denitrification, organic compounds such as methanol, ethanol and acetic acid are added to provide a carbon source for the bacteria.
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Journal of Environmental Science and Health, Part A, 2002
A combined two-step process of heterotrophic and electrochemical autotrophic denitrification was developed for the treatment of nitrate-contained drinking water. The water was first treated with heterotrophic biological denitrification and was further purified with electrochemical autotrophic denitrification.
Jiuhui, Qu +3 more
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A combined two-step process of heterotrophic and electrochemical autotrophic denitrification was developed for the treatment of nitrate-contained drinking water. The water was first treated with heterotrophic biological denitrification and was further purified with electrochemical autotrophic denitrification.
Jiuhui, Qu +3 more
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Predicting yields for autotrophic and cometabolic processes
Applied Biochemistry and Biotechnology, 1995The goal of bioprocess engineering is to state how the optimum design and control strategy for a bioprocess follow from the metabolism of olism of the particular microorganism. A necessary step toward this goal is to show how the parameters used in quantitative descriptions of a process (e.g., yield and maintenance coefficients) are related to those ...
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Chinese Journal of Chemical Engineering, 2021
Abstract In this study, a sequential process (heterotrophic up-flow column and completely mixed membrane bioreactors) was proposed combining advantages of the both processes. The system was operated for 249 days with simulated and real groundwater for nitrate removal at concentrations varying from 25 to 145 mg·L−1 NO3−-N.
Cemile Şeyma Arzum Yapıcı +5 more
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Abstract In this study, a sequential process (heterotrophic up-flow column and completely mixed membrane bioreactors) was proposed combining advantages of the both processes. The system was operated for 249 days with simulated and real groundwater for nitrate removal at concentrations varying from 25 to 145 mg·L−1 NO3−-N.
Cemile Şeyma Arzum Yapıcı +5 more
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Nitrate Removal with Sulfur-Limestone Autotrophic Denitrification Processes
Journal of Environmental Engineering, 1999Nitrate removal using sulfur and limestone autotrophic denitrification (SLAD) processes was evaluated with four laboratory-scale fixed-bed column reactors.
Joel M. Flere, Tian C. Zhang
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