Partial denitrification providing nitrite: Opportunities of extending application for anammox

Environment International, Год журнала: 2019, Номер 131, С. 105001 - 105001

Опубликована: Июль 20, 2019

Язык: Английский

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Towards mainstream deammonification of municipal wastewater: Partial nitrification-anammox versus partial denitrification-anammox

The Science of The Total Environment, Год журнала: 2019, Номер 692, С. 393 - 401

Опубликована: Июль 19, 2019

Язык: Английский

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Recent advances in partial denitrification in biological nitrogen removal: From enrichment to application

Bioresource Technology, Год журнала: 2019, Номер 298, С. 122444 - 122444

Опубликована: Ноя. 19, 2019

Язык: Английский

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Net-zero greenhouse gas emission from wastewater treatment: Mechanisms, opportunities and perspectives

Renewable and Sustainable Energy Reviews, Год журнала: 2023, Номер 184, С. 113547 - 113547

Опубликована: Июль 12, 2023

Язык: Английский

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A novel SNPR process for advanced nitrogen and phosphorus removal from mainstream wastewater based on anammox, endogenous partial-denitrification and denitrifying dephosphatation

Water Research, Год журнала: 2019, Номер 170, С. 115363 - 115363

Опубликована: Дек. 2, 2019

Язык: Английский

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Achieving partial denitrification using carbon sources in domestic wastewater with waste-activated sludge as inoculum

Bioresource Technology, Год журнала: 2019, Номер 283, С. 18 - 27

Опубликована: Март 13, 2019

Язык: Английский

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Bacterial community structure and function in soils from tidal freshwater wetlands in a Chinese delta: Potential impacts of salinity and nutrient

The Science of The Total Environment, Год журнала: 2019, Номер 696, С. 134029 - 134029

Опубликована: Авг. 21, 2019

Язык: Английский

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Achieving partial denitrification-anammox in biofilter for advanced wastewater treatment

Environment International, Год журнала: 2020, Номер 138, С. 105612 - 105612

Опубликована: Март 7, 2020

Recently, partial denitrification (PDN) - anaerobic ammonium oxidation (anammox) process has been widely studied in activated sludge for nitrate wastewater treatment. However, achieving PDN-Anammox biofilter domestic treatment was never reported. In this study, two lab-scale PDN and Anammox were built up to treat simulated wastewater. The results showed that stable nitrogen removal performance kept with averaged effluent of 10.2 mg/L. Stable nitrite accumulation achieved low abundance reductase gene, while influent composition influenced transformation pathway biofilter. When treating wastewater, nitrification led the higher ratio 75.4%. percentage contribution anammox 74.6% removal, Candidatus Brocadia dominant genus. After long-term operation, limited substrate concentration caused interspecific competition among various bacteria, leading an increasing proportion fulgida. is a feasible advanced treatment, which could save aeration consumption carbon source addition, reduce production.

Язык: Английский

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Recovering partial nitritation in a PN/A system during mainstream wastewater treatment by reviving AOB activity after thoroughly inhibiting AOB and NOB with free nitrous acid

Environment International, Год журнала: 2020, Номер 139, С. 105684 - 105684

Опубликована: Апрель 1, 2020

Starting up or recovering partial nitritation is a major challenge for achieving maintaining stable nitritation/anammox (PN/A) during mainstream wastewater treatment. This study presents novel strategy the nitrite pathway by selectively reviving ammonium oxidizing bacteria (AOB) after thoroughly inhibiting AOB and (NOB) using free nitrous acid (FNA). A sequencing batch reactor was operated PN/A to treat real domestic 423 days, which twice FNA treatment temporarily implemented. Results showed that with single 0.45 mg/L on flocculent sludge, NO3--N concentration aerobic period an uptrend again performance deteriorated. In contrast, 1.35 induced inhibition of both NOB leading regressive oxidation, but subsequently higher DO (1.5 mg/L) longer aeration duration recovered nitritation. For relative abundances acquired biomass related nitrogen conversion, Nitrosomonas, Nitrospira Nitrolancea increased 9.65%, 10.27% 4.35%, respectively, at beginning treatment, decreased 2.80% 0.03% whereas Nitrosomonas declined 8.71% 76 days. Ca. Brocadia less resilience abundance decreasing from 13.38% 0.62% due insufficient nitrite. Molecular ecological network analysis indicates among anammox taxa, Kuenenia formed important links other N cycle processes. Moreover, proposed shows operational flexibility because it can be easily used control in applications offered sludge systems.

Язык: Английский

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The anammox coupled partial-denitrification process in an integrated granular sludge and fixed-biofilm reactor developed for mainstream wastewater treatment: Performance and community structure

Water Research, Год журнала: 2021, Номер 210, С. 117964 - 117964

Опубликована: Дек. 15, 2021

Язык: Английский

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