Synergistic exposure of return-sludge to anaerobic starvation, sulfide, and free ammonia to suppress nitrite oxidizing bacteria
- Author
- Dries Seuntjens (UGent) , Michiel Van Tendeloo, Ioanna Chatzigiannidou, Jose Maria Carvajal Arroyo (UGent) , Sander Vandendriessche (UGent) , Siegfried Vlaeminck (UGent) and Nico Boon (UGent)
- Organization
- Abstract
- A key step toward energy-positive sewage treatment is the development of mainstream partial nitritation/anammox, a nitrogen removal technology where aerobic ammonium-oxidizing bacteria (AerAOB) are desired, while nitrite-oxidizing bacteria (NOB) are not. To suppress NOB, a novel return-sludge treatment was investigated. Single and combined effects of sulfide (0-600 mg S L-1), anaerobic starvation (0-8 days), and a free ammonia (FA) shock (30 mg FA-N L-1 for 1 h) were tested for immediate effects and long-term recovery. AerAOB and NOB were inhibited immediately and proportionally by sulfide, with AerAOB better coping with the inhibition, while the short FA shock and anaerobic starvation had minor effects. Combinatory effects inhibited AerAOB and NOB more strongly. A combined treatment of sulfide (150 mg S L-1), 2 days of anaerobic starvation, and FA shock (30 mg FA-N L-1) inhibited AerAOB 14% more strongly compared to sulfide addition alone, while the AerAOB/NOB activity ratio remained constant. Despite no positive change being observed in the immediate-stress response, AerAOB recovered much faster than NOB, with a nitrite accumulation ratio (effluent nitrite on nitrite + nitrate) peak of 50% after 12 days. Studying long-term recovery is therefore crucial for design of an optimal NOB-suppression treatment, while applying combined stressors regularly may lead toward practical implementation.
- Keywords
- PARTIAL NITRITATION/ANAMMOX, ACTIVATED-SLUDGE, NITROGEN REMOVAL, LOW-TEMPERATURES, REACTOR, SEWAGE, STABILITY, BIOFILM, PATHWAY, GROWTH
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8579686
- MLA
- Seuntjens, Dries, et al. “Synergistic Exposure of Return-Sludge to Anaerobic Starvation, Sulfide, and Free Ammonia to Suppress Nitrite Oxidizing Bacteria.” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 52, no. 15, 2018, pp. 8725–32, doi:10.1021/acs.est.7b06591.
- APA
- Seuntjens, D., Van Tendeloo, M., Chatzigiannidou, I., Carvajal Arroyo, J. M., Vandendriessche, S., Vlaeminck, S., & Boon, N. (2018). Synergistic exposure of return-sludge to anaerobic starvation, sulfide, and free ammonia to suppress nitrite oxidizing bacteria. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 52(15), 8725–8732. https://doi.org/10.1021/acs.est.7b06591
- Chicago author-date
- Seuntjens, Dries, Michiel Van Tendeloo, Ioanna Chatzigiannidou, Jose Maria Carvajal Arroyo, Sander Vandendriessche, Siegfried Vlaeminck, and Nico Boon. 2018. “Synergistic Exposure of Return-Sludge to Anaerobic Starvation, Sulfide, and Free Ammonia to Suppress Nitrite Oxidizing Bacteria.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 52 (15): 8725–32. https://doi.org/10.1021/acs.est.7b06591.
- Chicago author-date (all authors)
- Seuntjens, Dries, Michiel Van Tendeloo, Ioanna Chatzigiannidou, Jose Maria Carvajal Arroyo, Sander Vandendriessche, Siegfried Vlaeminck, and Nico Boon. 2018. “Synergistic Exposure of Return-Sludge to Anaerobic Starvation, Sulfide, and Free Ammonia to Suppress Nitrite Oxidizing Bacteria.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 52 (15): 8725–8732. doi:10.1021/acs.est.7b06591.
- Vancouver
- 1.Seuntjens D, Van Tendeloo M, Chatzigiannidou I, Carvajal Arroyo JM, Vandendriessche S, Vlaeminck S, et al. Synergistic exposure of return-sludge to anaerobic starvation, sulfide, and free ammonia to suppress nitrite oxidizing bacteria. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 2018;52(15):8725–32.
- IEEE
- [1]D. Seuntjens et al., “Synergistic exposure of return-sludge to anaerobic starvation, sulfide, and free ammonia to suppress nitrite oxidizing bacteria,” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 52, no. 15, pp. 8725–8732, 2018.
@article{8579686,
abstract = {{A key step toward energy-positive sewage treatment is the development of mainstream partial nitritation/anammox, a nitrogen removal technology where aerobic ammonium-oxidizing bacteria (AerAOB) are desired, while nitrite-oxidizing bacteria (NOB) are not. To suppress NOB, a novel return-sludge treatment was investigated. Single and combined effects of sulfide (0-600 mg S L-1), anaerobic starvation (0-8 days), and a free ammonia (FA) shock (30 mg FA-N L-1 for 1 h) were tested for immediate effects and long-term recovery. AerAOB and NOB were inhibited immediately and proportionally by sulfide, with AerAOB better coping with the inhibition, while the short FA shock and anaerobic starvation had minor effects. Combinatory effects inhibited AerAOB and NOB more strongly. A combined treatment of sulfide (150 mg S L-1), 2 days of anaerobic starvation, and FA shock (30 mg FA-N L-1) inhibited AerAOB 14% more strongly compared to sulfide addition alone, while the AerAOB/NOB activity ratio remained constant. Despite no positive change being observed in the immediate-stress response, AerAOB recovered much faster than NOB, with a nitrite accumulation ratio (effluent nitrite on nitrite + nitrate) peak of 50% after 12 days. Studying long-term recovery is therefore crucial for design of an optimal NOB-suppression treatment, while applying combined stressors regularly may lead toward practical implementation.}},
author = {{Seuntjens, Dries and Van Tendeloo, Michiel and Chatzigiannidou, Ioanna and Carvajal Arroyo, Jose Maria and Vandendriessche, Sander and Vlaeminck, Siegfried and Boon, Nico}},
issn = {{0013-936X}},
journal = {{ENVIRONMENTAL SCIENCE & TECHNOLOGY}},
keywords = {{PARTIAL NITRITATION/ANAMMOX,ACTIVATED-SLUDGE,NITROGEN REMOVAL,LOW-TEMPERATURES,REACTOR,SEWAGE,STABILITY,BIOFILM,PATHWAY,GROWTH}},
language = {{eng}},
number = {{15}},
pages = {{8725--8732}},
title = {{Synergistic exposure of return-sludge to anaerobic starvation, sulfide, and free ammonia to suppress nitrite oxidizing bacteria}},
url = {{http://doi.org/10.1021/acs.est.7b06591}},
volume = {{52}},
year = {{2018}},
}
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