Advanced nitrogen removal of landfill leachate treatment with anammox process: A critical review

Journal of Water Process Engineering, Год журнала: 2024, Номер 58, С. 104756 - 104756

Опубликована: Янв. 6, 2024

Язык: Английский

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Enhance PD/A biofilm formation via a novel biochar/tourmaline modified-biocarriers to treat low-strength contaminated surface water: Initial adhesion and high-substrate microenvironment

Journal of Environmental Management, Год журнала: 2024, Номер 366, С. 121803 - 121803

Опубликована: Июль 14, 2024

Язык: Английский

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Mechanistic insight into assimilation capture: Implication for high-efficiency nitrogen removal from mature landfill leachate

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155395 - 155395

Опубликована: Авг. 31, 2024

Язык: Английский

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Deciphering iron interactions with anaerobic ammonia oxidation: nitrogen removal performance, iron transformation, and microbial community characterization analysis

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116089 - 116089

Опубликована: Март 1, 2025

Язык: Английский

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Simultaneous removal of nitrogen and phosphorus from methane fermentation permeate by hydroxyapatite microgranule type one-stage partial nitrification/anammox process

Journal of Water Process Engineering, Год журнала: 2025, Номер 73, С. 107731 - 107731

Опубликована: Апрель 16, 2025

Язык: Английский

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Synchronous achievement of rapid self-induced anammox and advanced nitrogen removal from low C/N wastewater via gas-permeable membrane-mediated aeration system

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163062 - 163062

Опубликована: Апрель 1, 2025

Язык: Английский

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Microbial interactions and nitrogen removal performance in an intermittently rotating biological contactor treating mature landfill leachate

Bioresource Technology, Год журнала: 2023, Номер 389, С. 129797 - 129797

Опубликована: Сен. 26, 2023

Язык: Английский

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Full-Scale Demonstration of Nitrogen Removal from Mature Landfill Leachate Using a Two-Stage Partial Nitritation and Anammox Process

Processes, Год журнала: 2024, Номер 12(7), С. 1307 - 1307

Опубликована: Июнь 24, 2024

The excessive discharge of nitrogen leads to water eutrophication. partial nitritation and anammox (PN/A) process is a promising technology for biological removal in wastewater treatment. However, applying it mature landfill leachate (MLL) faces challenges, as the toxic substances (e.g., heavy metal) within MLL inhibit activity bacteria. Therefore, most previous studies focused on diluted, pretreated, or chemically adjusted MLL. This study demonstrated at full scale that two-stage PN/A can treat raw Initially, operational issue sludge floatation resulted rapid biomass loss with overflow discharging, which selectively suppresses nitrite-oxidizing bacteria (NOB), promoting achievement nitrite accumulation. After that, NOB suppression was self-sustained by high situ free ammonia concentration, i.e., 26.2 ± 15.9 mg N/L. In subsequent tank, primarily occurred via process, complemented denitrification, achieving total efficiency exceeding 72%. addition, capacity this system significantly influenced temperature nitrogen-loading rate above 0.4 kg N/m3/d 38 °C approximately 0.1 21 °C. optimization operation, such gradually increasing content, remains necessary enhance further.

Язык: Английский

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Assessment of Phytotoxicity in Untreated and Electrochemically Treated Leachates through the Analysis of Early Seed Growth and Inductively Coupled Plasma-Optical Emission Spectroscopy Characterization

Horticulturae, Год журнала: 2024, Номер 10(1), С. 67 - 67

Опубликована: Янв. 9, 2024

The treatment of stabilized leachates with high refractory organic matter content, which are over 10 years old, presents a challenge. This study explored the potential electro-coagulation (EC) and electro-oxidation (EO) systems to address this issue. objective was investigate phytotoxicity proposed system on seed growth examine possible relationships between results characterization leachates, effluents, soil, radicles. Phytotoxicity tests were conducted seeds Lactuca sativa, Cucumis sativus, Phaseolus vulgaris, using Inductively Coupled Plasma-Optical analysis. evolution monitored by fractionating chemical oxygen demand (COD) humic substances. biodegradability index increased from 0.094 in raw leachate 0.26 0.48 EC EO, respectively. Removal rates 82%, 86%, 99%, 81% achieved for COD, dissolved carbon, color, ammoniacal nitrogen, biodegradable COD 26% 39% process 58% EO effluent. successfully broke aromatic structures substances present leachate, thereby increasing content material. revealed that significantly reduced generated effluents.

Язык: Английский

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Synergetic association of hydroxyapatite-mediated biofilm and suspended sludge enhances resilience of partial nitrification/anammox (PN/A) system treating high-strength anaerobic membrane bioreactor (AnMBR) permeate

Bioresource Technology, Год журнала: 2024, Номер 412, С. 131391 - 131391

Опубликована: Авг. 30, 2024

A single-stage partial nitrification/anammox (PN/A) system with biocarriers was used to treat the permeate from an anaerobic membrane reactor (AnMBR) processing organic fraction of municipal solid wastes. The suitable Ca/P ratio and high pH in AnMBR facilitated hydroxyapatite (HAP) formation, enhancing biofilm attachment settleability suspended sludge. This maintained sufficient biomass a stable microbial structure after flushing mitigate free nitrous acid inhibition. Robust anammox bacteria ammonia-oxidizing sludge ensured that PN/A achieved 87.3 % nitrogen removal efficiency at influent NH

Язык: Английский

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