Thermophilic bacteria and their thermozymes in composting processes: a review

Chemical and Biological Technologies in Agriculture, Journal Year: 2023, Volume and Issue: 10(1)

Published: Jan. 27, 2023

Abstract In this review, the composting process of organic waste is discussed through an in-depth exploring its thermophilic phase. It starts with highlight on thermodynamic evolution, which needs to be assessed when deciding use reactors for composting, also in context energy generation. The mediated by different types microorganisms, and bacteria that play key roles are evaluated. genera Bacillus Thermus considered, often described as main components microbiota compost. Due their adaptation processes, they candidates technological purposes. Subsequentially, focus moved thermostable enzymes can isolated from them succession during processes. Experimental examples enzyme-related literature reviewed, example investigating proteases ureases, found at beginning process. addition, cellulases, hemicellulases, lignin-modifying enzymes, esterases have been activities phase, giving great potential biotechnological industrial applications. Following, composition microbial community analyzed description approaches metagenomics. Despite it being a relatively new but fast-growing field within biology, intended priority analysis acquire knowledge genomes environmental microorganisms communities. Finally, space dedicated plant treats olive oil wastes LIFE TIRSAV PLUS project (LIFE05 ENV/IT/00845). Through two solutions, Dynamic Static Composting, provides high-quality compost effective, flexible economical Graphical

Language: Английский

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Greenhouse gas emission characteristics and influencing factors of agricultural waste composting process: A review

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 354, P. 120337 - 120337

Published: Feb. 27, 2024

Language: Английский

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Recent Trends and Advances in Additive-Mediated Composting Technology for Agricultural Waste Resources: A Comprehensive Review

ACS Omega, Journal Year: 2024, Volume and Issue: 9(8), P. 8632 - 8653

Published: Feb. 16, 2024

Agriculture waste has increased annually due to the global food demand and intensive animal production. Preventing environmental degradation requires fast effective agricultural treatment. Aerobic digestion or composting uses wastes create a stabilized sterilized organic fertilizer reduces chemical input. Indeed, conventional technology large surface area, long fermentation period, significant malodorous emissions, inferior product quality, little for poor end results. Conventional loses lot of nitrogen carbon. Thus, this comprehensive research examined sustainable adaptable methods improving efficiency. This review summarizes processes examines how compost additives affect solid quality. Our findings indicate that have an impact on process by influencing variables including temperature, pH, moisture. Compost additive amendment could dramatically reduce gas emissions mineral ion mobility. Composting can (1) improve physicochemical composition mixture, (2) accelerate material disintegration increase microbial activity, (3) greenhouse (GHG) ammonia (NH3) (N) losses, (4) retain nutrients soil nutrient content, maturity, phytotoxicity. essay concluded with brief summary which is essential before using it as fertilizer. work will add literature. To sustainability resource utilization, strategies must be locally optimized involve created amendments in circular economy.

Language: Английский

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Microbial dynamics and nitrogen retention during sheep manure composting employing peach shell biochar

Bioresource Technology, Journal Year: 2023, Volume and Issue: 386, P. 129555 - 129555

Published: July 25, 2023

Language: Английский

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Effect of biochar on the mitigation of organic volatile fatty acid emission during aerobic biostabilization of biosolids and the underlying mechanism

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 390, P. 136213 - 136213

Published: Jan. 26, 2023

Language: Английский

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Aeration intensity drives dissolved organic matter transformation and humification during composting by regulating the organics metabolic functions of microbiome

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146645 - 146645

Published: Oct. 14, 2023

Language: Английский

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Magnetic biochar accelerates microbial succession and enhances assimilatory nitrate reduction during pig manure composting

Environment International, Journal Year: 2024, Volume and Issue: 184, P. 108469 - 108469

Published: Feb. 1, 2024

Biochar promotes microbial metabolic activities and reduces N2O on aerobic composting. However, the effects of magnetic biochar (MBC) succession emissions during pig manure composting remain unclear. Herein, a 42-day experiment was conducted with five treatment regimes: without (CK), 5% manure-based (5% PBC), 2% MBC (2% MBC), MBC) 7.5% (7.5% MBC)), to clarify variation in functional microorganisms genes associated nitrogen direct interspecies electron transfer via metagenomics. Fourier-transform infrared spectroscopy showed that possessed more stable aromatic structures than (PBC), indicating its greater potential for nitrous oxide reduction. treatments were effective organic matter improving carbon/nitrogen ratio PBC. The composition varied significantly, dominant phyla shifting from Firmicutes Proteobacteria, Actinobacteria, Bacteroidota. Network hierarchical clustering analyses enhanced interactions microbes (Proteobacteria Bacteroidota) accelerated process. addition assimilatory nitrate reduction slowed dissimilatory denitrification. Mantel test demonstrated potentially helped regulate nutrients affected genes. These findings shed light role mitigating greenhouse gas

Language: Английский

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Greenhouse gas emission characteristics during kitchen waste composting with biochar and zeolite addition

Bioresource Technology, Journal Year: 2024, Volume and Issue: 399, P. 130575 - 130575

Published: March 11, 2024

Language: Английский

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Enhancing compost quality: Biochar and zeolite's role in nitrogen transformation and retention

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 963, P. 178490 - 178490

Published: Jan. 20, 2025

Language: Английский

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Contribution of Acid Additive to Co-Composting of Chicken Manure: Gas Emission Reduction and Economic Assessment

Agriculture, Journal Year: 2025, Volume and Issue: 15(4), P. 425 - 425

Published: Feb. 18, 2025

Acidic additives have garnered significant attention due to their ability reduce ammonia (NH3) emissions, enhance nitrogen retention, and balance function with cost-effectiveness. This study aimed investigate the potential of oxalic acid (OA) in reducing gas promoting compost humification, enhancing nutrient retention during co-composting chicken manure. Moreover, comparative analysis effects economic benefits was conducted among OA groups varying concentrations (OA1: 0.03 mol·kg−1, OA2: 0.10 OA3: 0.15 mol·kg−1) a sulfuric (SA) group (SA1: mol·kg−1). The results indicated that addition can extend thermophilic phase some extent achieve required composting maturity. As amount increased, NH3 emissions (p < 0.05) total loss rate decreased; however, this also increased cost. No difference observed between SA1 OA1 0.05). It is worth noting SA SO42− content, leading an increase 113.52% H2S emissions. In contrast, resulted reduction by 29.92–45.90%. terms analysis, most effective (OA1 > OA2 OA3 SA1). Thereby, proved be good alternative for manure, mol·kg−1 recommended.

Language: Английский

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