Micro-aeration based anaerobic digestion for food waste treatment: A review

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 58, P. 104814 - 104814

Published: Jan. 21, 2024

Language: Английский

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Enhanced anaerobic digestion of landfill leachate based on a novel redox mediator: Synergistic mechanism of enhancing extracellular electron transfer

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151649 - 151649

Published: April 24, 2024

Language: Английский

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Landfill Gas Emissions and Heavy Metal Leaching from a Recirculated Msw Landfill Mixed with Stabilized Msw Incineration Fly Ash: Behavior and Interactive Effects

Published: Jan. 1, 2025

In China, the co-landfill of stabilized MSW incineration fly ash (FA) and raw is a historical legacy issue, which can affect stability heavy metals in FA stabilization process MSW. This study investigates recirculating semi-aerobic co-landfilling system FA, focusing on landfill gas emissions metal leaching. Three columns with varying recirculation frequencies were established for simulated experiments. Results indicate that leachate enhances microbial activity but causes accumulation NH4+-N COD, inhibiting organic matter decomposition. Recirculation frequency does not significantly CO2 production, peak concentrations S1 natural rainfall, S2 weekly recirculation, S3 bi-daily at 245 days being 60.95%, 58.42%, 61.86%, respectively. Compared delayed exerted positive effect mitigating Cd Pb Heavy leaching driven by pH fluctuations, carbonation, frequency. Early acidic conditions increase release, while certain degree carbonation stabilizes Pb, Ni, Cr. However, Zn Cu mobility depends balance between acid carbonation. contamination reduces metabolic production altering communities. These findings highlight complexity pollutant dynamics offer insights optimizing strategies to mitigate environmental risks disposing

Language: Английский

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Oxygen and hydrobiological profiles of homemade manure-based tea in North Africa

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 11, 2025

Abstract Homemade manure tea (HMT) is commonly used in North Africa to enhance crop yields. Yet their physicochemical and biological characteristics remain poorly understood. This study evaluated oxygen hydrobiological profiles of three types HMT (bovine, ovine poultry based, respectively noted HMTb, HMTo, HMTp) compared them control solutions water supplemented with soluble NPK fertilizer. For these HMT, were measured daily over a 7-day incubation period repeated, identical experiments, each comprising randomized treatments five repetitions per treatment. Our results show that all rapidly transitioned hypoxic conditions the first 24h, shifting anoxia between day 2 7 depending on type. anoxic environment promoted denitrification led elevated NH 4 + concentrations, suggesting presence anammox microaerobic processes. Particulate organic matter contents bacterial densities highest HMTp, while ciliate HMTb. These findings underscore bioactive potential as fertilizers, HMTp showing favorable nitrogen profile beneficial for agricultural applications. To maintain aerobic longer reduce losses greenhouse gas emissions, we recommend passive or mechanical aeration, applying during cooler hours, stabilizing pH HMT. offers valuable insights refine preparation protocols, enhancing use fertilizers.

Language: Английский

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Biostimulants accelerate lignin degradation in semi-aerobic landfills, assisting overall lifecycle management and sustainable development of landfills

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145267 - 145267

Published: March 1, 2025

Language: Английский

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Heavy metal leaching and landfill gas emissions from a recirculated MSW landfill mixed with stabilized MSW incineration fly ash: behavior and interactive effects

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116342 - 116342

Published: March 1, 2025

Language: Английский

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Study on the growth and decline patterns and environmental drivers of pathogens during the stabilization process of simulated landfilling municipal solid waste

Waste Management, Journal Year: 2025, Volume and Issue: 201, P. 114791 - 114791

Published: April 14, 2025

Language: Английский

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Fungal community diversity and their contribution to nitrogen cycling in in-situ aerated landfills: Insights from field and laboratory studies

Waste Management, Journal Year: 2024, Volume and Issue: 179, P. 1 - 11

Published: March 5, 2024

Language: Английский

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New insights into anaerobic digestion of lignocellulosic wastes towards carbon neutrality: A review of current advancement and future prospects

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 68, P. 106584 - 106584

Published: Nov. 20, 2024

Language: Английский

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Biostimulant Accelerates the Degradation Of Lignin in Semi-Aerobic Landfills, Supporting Landfill Operation and Maintenance

Published: Jan. 1, 2024

Lignin is the main natural refractory organic compound in landfills and primary factor impeding stability of landfills. This study investigated effects mechanism associated with lignin degradation agent (LD) enhancement decomposition semi-aerobic The results demonstrated that after LD inoculation, laccase, manganese peroxidase, peroxidase activities related to increased by 44.95%, 89.47%, 97.07% during middle landfill stage, respectively. At end experiment, contents (hemicellulose content + cellulose content)/lignin ratio had decreased 20.76% 9.84%, respectively, whereas humic acid/fulvic acid 197.25% treatment. Chaetomium Microscaceae inoculant successfully colonized became dominant microorganisms. Simultaneously, inoculation stimulated enrichment indigenous lignin-degrading microorganisms (Cellvibrionaceae Chrysosporium) exogenous-indigenous microorganism interactions synergistically enhanced carbohydrate amino metabolism. microbial network analysis, Mantel test, structural equation model showed reorganized optimized community structure, synergistic among microorganisms, effectively promoted secretion alleviated barrier preventing biodegradation lignocellulose. Bioaugmenting an accelerates lignocellulose solid waste, shortens stabilization time, reduces their environmental impacts.

Language: Английский

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