Effect of terminal temperature on the morphology and heavy metal concentrations of typical rural domestic biochar and its potential use in ammonia nitrogen adsorption

Environmental Technology & Innovation, Год журнала: 2024, Номер 33, С. 103528 - 103528

Опубликована: Янв. 5, 2024

In this study, straw, kitchen waste and pine needles were used as raw materials to prepare biochar at terminal temperatures of 300, 500 700 °C (SB, KB PB), respectively. The morphology concentrations heavy metals extracted from different synthetic analyzed by BCR (European Community Bureau Reference) method. effects temperature pH on the adsorption ammonia nitrogen (NH4-N) in landfill leachate with SB, PB studied. results show that yield PB300 was highest (86.47%). Further analysis presents contain basic functional groups (pH > 8.50) metal content is low (<2.564 mg∙kg-1). Moreover, it found negatively correlated concentration. F3 F4 are primary states zinc (Zn), lead (Pb) barium (Ba) PB, indicating relatively high biological stability products. potential ecological risk (RI) values lower than 1, illustrating non-hazardous (<1 mg∙L-1). When alkaline = 9), SB500 had best ability for NH4-N (19.14 mg∙g-1). improvement performance can be achieved 35 (21.88 Overall, environmentally friendly remediation materials.

Язык: Английский

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Alternating electric field as an effective inhibitor of bioavailability and phytotoxicity of heavy metals during electric field-assisted aerobic composting

Journal of Hazardous Materials, Год журнала: 2025, Номер 490, С. 137842 - 137842

Опубликована: Март 4, 2025

Язык: Английский

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Biochar, phosphate, and magnesium oxide in seaweed and cornstarch dregs co-composting: Enhancing organic matter degradation, humification, and nitrogen retention

Waste Management, Год журнала: 2024, Номер 187, С. 207 - 217

Опубликована: Июль 25, 2024

Язык: Английский

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Nitrogen Transformation Mechanisms and Compost Quality Assessment in Sustainable Mesophilic Aerobic Composting of Agricultural Waste

Sustainability, Год журнала: 2025, Номер 17(2), С. 575 - 575

Опубликована: Янв. 13, 2025

This study examines nitrogen transformation mechanisms and compost quality in mesophilic aerobic composting of wheat straw, utilizing cow manure as a co-substrate to promote sustainable agricultural waste management. Two systems were established: group A (control) B (10% addition by wet weight). The accelerated early organic matter decomposition increased total retention B. Nitrogen losses occurred primarily via ammonia volatilization during the initial final stages, while functional gene analysis revealed enhanced ammonification nitrification both systems. Microbial community showed that promoted nitrogen-fixing bacteria phase fungi associated with complex degradation later stages. These findings underscore potential enhance maturity, improve efficiency, support development practices contribute resource conservation.

Язык: Английский

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Nitrogen conversion and mechanisms related to reduced emissions by adding exogenous modified magnesium ore during aerobic composting

Journal of Environmental Management, Год журнала: 2025, Номер 378, С. 124550 - 124550

Опубликована: Март 3, 2025

Язык: Английский

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Unveiling the nitrogen metabolism mechanism for nitrogen retention in compost via in-situ ammonia recycling strategy

Journal of Environmental Management, Год журнала: 2025, Номер 379, С. 124863 - 124863

Опубликована: Март 6, 2025

Язык: Английский

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Research Progress on Microbial Nitrogen Conservation Technology and Mechanism of Microorganisms in Aerobic Composting

Microbial Ecology, Год журнала: 2025, Номер 88(1)

Опубликована: Март 25, 2025

With economic development and improvements in living standards, the demand for livestock products has steadily increased, resulting generation of large amounts manure, which seriously pollutes ecological environment poses a threat to human health. High-temperature aerobic composting is an effective method treating manure; however, traditional processes often lead considerable nitrogen loss, reduced efficiency soil conditioners, increased emissions harmful gases. The incorporation physical, chemical, biological additives can effectively retain within compost. Among these, microbial agents are particularly noteworthy as they precisely regulate community structure associated with transformation during composting, altering abundance functional genes enzyme activities involved transformation. This approach significantly reduces loss gas emissions. paper reviews application effects on retention explores underlying regulatory mechanisms, aiming provide theoretical guidance new research directions enhancing composting.

Язык: Английский

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Nitrogen Retention and Harmful Gas Emission Reduction During Co-Composting of Pig Manure and Filter Residues From Straw Filtering Pig Wastewater

Environmental Engineering Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Язык: Английский

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Adaptation of microbial gene polymorphisms of the partial nitritation-anammox process for maintaining denitrification performance and robustness under salinity stress

Journal of Environmental Sciences, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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Insight into N2O emission and denitrifier communities under different aeration intensities in composting of cattle manure from perspective of multi-factor interaction analysis

The Science of The Total Environment, Год журнала: 2024, Номер 931, С. 172936 - 172936

Опубликована: Май 1, 2024

Язык: Английский

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