Performance of Ex Situ Microalgal–Bacterial Granular Sludge Process in Deeply Removing Nitrogen and Phosphorus in Eutrophication Water

Environmental Engineering Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Anthropogenic eutrophication is a worldwide problem, which easily induced by excessive nutrients of nitrogen (N) and phosphorus (P). In order to treat the simulated water (N 10 mg/L, P 0.5 mg/L), ex situ processes microalgal–bacterial granular sludge (MBGS) technology normal aerobic (AGS) were introduced compared in present study, using four parallel operated sequencing batch reactors (two for MBGS with illumination two AGS without illumination). Results showed that during 200 days cultivation, removal total inorganic (TIN) (TP) could both reach >80% MBGS, while ended up removing only 18.5–23.3% TIN 47.4–52.5% TP. The good N probably due large expansion filamentous algae phylum Cyanobacteria. Filamentous growth able largely enrich lipid content factor 3.4–4.1 AGS. Besides, suspended tests also conducted all reached relatively efficiency >69%. As result, proved have great potential remediation eutrophicated water, achieving excellent purification, promising prospects restoring contaminated bodies as an process.

Язык: Английский

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Inhibitory Effects of Xenobiotics on Algal‐Bacterial Granular Sludge During Wastewater Treatment

ChemBioEng Reviews, Год журнала: 2025, Номер unknown

Опубликована: Март 19, 2025

Abstract Bacterial granular sludge (BGS) process is currently believed to be feasible biological technique for wastewater treatment. However, several shortcomings have been identified. Hence, it became critical employ environment‐friendly microalgae in the granulation process. The microalgal‐bacterial (M‐BGS) nutrient removal relies mostly on microbial absorption. peculiar shape of M‐BGS can give rise improved separation among and treated wastewater. this article provides a review literature developments applications aerobic emphasized current state use treatment discussed effects physical, environmental, operational, microbiological factors system. identified inhibitory effect various xenobiotic compounds that could induce decoupling symbiosis systems. has proven effective as ecologically beneficial sustainable remedies challenges faced during

Язык: Английский

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Sustainable Phosphate Remediation via Hierarchical Mg-Fe Layered Double Hydroxides on Magnetic Biochar from Agricultural Waste

Magnetochemistry, Год журнала: 2025, Номер 11(4), С. 27 - 27

Опубликована: Апрель 1, 2025

Addressing aquatic phosphate pollution requires advanced materials that combine high selectivity with recyclability. Here, we present a hierarchically structured composite integrating Mg-Fe layered double hydroxides (LDHs) magnetic biochar derived from mulberry branches—an abundant agricultural byproduct. Through hydrothermal synthesis, the achieves unique architecture combining Fe3O4-enabled recovery (2.63 emu·g−1 saturation) LDHs’ anion exchange capacity and biochar’s porous network. Systematic characterization reveals capture mechanisms dominated by hydrogen bonding through deprotonated carboxyl groups, inner-sphere complexation metal oxides, interlayer exchange, enabling 99.22% removal at optimal conditions (pH 6, 25 °C). Crucially, material demonstrates exceptional over competing Cl− NO3− ions while maintaining 87.83% efficiency after three regeneration cycles via alkaline treatment. Kinetic thermodynamic analyses confirm chemisorption-driven uptake aligned pseudo-second-order kinetics (R2 > 0.9998) Langmuir monolayer adsorption (7.72 mg·g−1 capacity). This waste-derived establishes sustainable paradigm for eutrophication control, merging selective sequestration energy-efficient circular water treatment applications.

Язык: Английский

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Signaling molecule alleviates inhibitory impacts of surfactant on methane production during sludge and food waste co-digestion: Insights of electron bifurcation and quorum sensing

Journal of Hazardous Materials, Год журнала: 2024, Номер unknown, С. 136810 - 136810

Опубликована: Дек. 1, 2024

Язык: Английский

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Combining nonthermal N2 plasma with a denitrifying biofilm reactor for PFAS-contaminated wastewater remediation

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 157334 - 157334

Опубликована: Ноя. 1, 2024

Язык: Английский

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