Synergistic Integration of Anammox and Endogenous Denitrification Processes for the Simultaneous Carbon, Nitrogen, and Phosphorus Removal

Environmental Science & Technology, Год журнала: 2024, Номер 58(24), С. 10632 - 10643

Опубликована: Май 31, 2024

The feasibility of a synergistic endogenous partial denitrification-phosphorus removal coupled anammox (SEPD-PR/A) system was investigated in modified anaerobic baffled reactor (mABR) for synchronous carbon, nitrogen, and phosphorus removal. mABR comprising four identical compartments (i.e., C1–C4) inoculated with precultured denitrifying glycogen-accumulating organisms (DGAOs), polyphosphate-accumulating organisms, bacteria. After 136 days operation, the chemical oxygen demand (COD), total efficiencies reached 88.6 ± 1.0, 97.2 1.5, 89.1 4.2%, respectively. Network-based analysis revealed that biofilmed community demonstrated stable nutrient performance under oligotrophic conditions C4. metagenome-assembled genomes (MAGs) such as MAG106, MAG127, MAG52, MAG37 annotated phosphorus-accumulating (DPAOs) MAG146 DGAO were dominated C1 C2 contributed to 89.2% COD consumption. MAG54 MAG16 Candidatus_Brocadia (total relative abundance 16.5% C3 4.3% C4) responsible 74.4% nitrogen through anammox-mediated pathway. Functional gene based on metagenomic sequencing confirmed different capable performing distinct functions specific advantageous microbial groups, facilitating targeted Additionally, conditions, activity bacteria-related genes hzs higher compared hdh. Thus, an innovative method treatment low-strength municipal nitrate-containing wastewaters without aeration presented, mediated by process less land area excellent quality effluent.

Язык: Английский

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Biochar’s role to achieve multi-pathway nitrogen removal in anammox systems: Insights from electron donation and selective microbial enrichment

Chemical Engineering Journal, Год журнала: 2024, Номер 482, С. 148824 - 148824

Опубликована: Янв. 18, 2024

Язык: Английский

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Robustness of the anammox process at low temperatures and low dissolved oxygen for low C/N municipal wastewater treatment

Water Research, Год журнала: 2024, Номер 252, С. 121209 - 121209

Опубликована: Янв. 27, 2024

Язык: Английский

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Metagenomics insights into high-rate nitrogen removal from municipal wastewater by integrated nitrification, partial denitrification and Anammox at an extremely short hydraulic retention time

Bioresource Technology, Год журнала: 2023, Номер 387, С. 129606 - 129606

Опубликована: Авг. 11, 2023

Язык: Английский

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Research progress and prospect of low-carbon biological technology for nitrate removal in wastewater treatment

Frontiers of Environmental Science & Engineering, Год журнала: 2024, Номер 18(7)

Опубликована: Март 25, 2024

Abstract Wastewater treatment plants are the major energy consumers and significant sources of greenhouse gas emissions, among which biological nitrogen removal wastewater is an important contributor to carbon emissions. However, traditional heterotrophic denitrification still has problems excessive residual sludge requirement external sources. Consequently, development innovative low-carbon nitrate technologies necessary. This review outlines key roles sulfur autotrophic hydrogen in treatment. The discovered nitrate/nitrite dependent anaerobic methane oxidation enables sustainable emission reduction by utilizing available situ . Photosynthetic microorganisms exhibited a promising potential achieve carbon-negative removal. Specifically, algal-bacterial symbiosis system photogranules offer effective prospective options for Then, emerging technology photoelectrotrophic underlying photoelectron transfer mechanisms discussed. Finally, we summarize prospect these technologies, highlighting that solar-driven area future guiding significance design systems.

Язык: Английский

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Achieving advanced nitrogen removal from mature landfill leachate in continuous flow system involving partial nitrification-anammox and denitrification

Bioresource Technology, Год журнала: 2024, Номер 399, С. 130553 - 130553

Опубликована: Март 7, 2024

Язык: Английский

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Strategy to mitigate substrate inhibition in wastewater treatment systems

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Сен. 10, 2024

Язык: Английский

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Achieving stable advanced nitrogen removal from mainstream municipal wastewater using integrated strategies in partial nitrification anammox (PNA) granular hybrid system

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150311 - 150311

Опубликована: Март 11, 2024

Язык: Английский

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Fast circulatory nitrification/denitrification process using continuous flow synchronous settling reactors promotes organic utilization efficiency in nitrogen removal

Chemical Engineering Journal, Год журнала: 2024, Номер 489, С. 151242 - 151242

Опубликована: Апрель 16, 2024

Язык: Английский

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Shift in microorganism and functional gene abundance during completely autotrophic nitrogen removal over nitrite (CANON) process

Journal of Environmental Management, Год журнала: 2024, Номер 359, С. 121009 - 121009

Опубликована: Май 1, 2024

Язык: Английский

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