The bioaugmentation effect of microbial inoculants on humic acid formation during co-composting of bagasse and cow manure

Environmental Research, Год журнала: 2024, Номер 252, С. 118604 - 118604

Опубликована: Март 26, 2024

Язык: Английский

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Elucidating carbon conversion and bacterial succession by amending Fenon-like systems during co-composting of pig manure and branch

The Science of The Total Environment, Год журнала: 2024, Номер 917, С. 170279 - 170279

Опубликована: Янв. 25, 2024

Язык: Английский

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Effect of different bulking agents on fed-batch composting and microbial community profile

Environmental Research, Год журнала: 2024, Номер 249, С. 118449 - 118449

Опубликована: Фев. 13, 2024

Язык: Английский

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Effective Carbon Dioxide Mitigation and Improvement of Compost Nutrients with the Use of Composts’ Biochar

Materials, Год журнала: 2024, Номер 17(3), С. 563 - 563

Опубликована: Янв. 25, 2024

Composting is a process that emits environmentally harmful gases: CO2, CO, H2S, and NH3, negatively affecting the quality of mature compost. The addition biochar to compost can significantly reduce emissions. For effective CO2 removal, high doses (up 20%) are often recommended. Nevertheless, as production efficiency low-up 90% mass loss-there need for research into effectiveness lower doses. In this study, laboratory experiments were conducted observe gaseous emissions during first 10 days composting with biochars obtained from composts. Biochars produced at 550, 600, 650 °C, tested different 0, 3, 6, 9, 12, 15% per dry matter (d.m.) in mixtures, three incubation temperatures (50, 60, 70 °C). NH3 measured daily. results showed effectively mitigate intensive phase composting. Even 3-6% d.m. up 50% total gas (the best treatment was B650 60 °C) increase content macronutrients. This study confirmed even low have potential enhancing improving material quality.

Язык: Английский

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Effects of adding exogenous microorganisms on nitrogen conversion and its mechanism of action in pig carcass composting

Journal of Cleaner Production, Год журнала: 2024, Номер 449, С. 141734 - 141734

Опубликована: Март 10, 2024

This study aimed to reveal mechanisms of nitrogen changes in a mixed compost diseased pig carcasses and sawdust after adding exogenous microbial agents. It was found that agents significantly increased the content various types germination index plants. Microbial dominance phyla correlated with indicators physicochemical properties copy number nitrogen-functional genes, simultaneous fixation, nitrification, denitrification, ammonification, glutamate synthesis during composting. At end composting, TKN, NH4+-N, NO3−-N contents were by 1.914–3.082 mg/g, 0.047–0.42 0.247–0.303 respectively, experimental groups compared control group. Proteobacteria, Bacteroidetes, Firmicutes, Actinobacteria, Planctomycetes five predominant phyla, while Sphingobacterium, Paenalcaligenes two special genera this experiment. After inoculation agents, levels nitrate positively (p < 0.05) glnA gene related 0.01) Planctomycetes, amoA, GDH2, GLUD1-2 genes Paenalcaligenes. The combined analysis has shown amoA 0.001) such as nxrA, GDH2 GLUD1-2, well temperature, organic nitrogen, correlation negative nirB nirS. Inoculation can prolong high-temperature period, which extended 5, 6, 5 days each group, roles also be changed. Meanwhile, we addition could promote growth alteration microorganisms, regulated stability symbiosis transformation process.

Язык: Английский

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Insights into relationship between microbial community-induced polycyclic aromatic hydrocarbons degradation and soluble organic matter transformation during vermiculite-amended sewage sludge composting

Journal of Cleaner Production, Год журнала: 2024, Номер 472, С. 143491 - 143491

Опубликована: Авг. 26, 2024

Язык: Английский

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Enhancing green waste composting efficiency with combination of Chinese medicinal herbal residues and bone char

Biomass Conversion and Biorefinery, Год журнала: 2025, Номер unknown

Опубликована: Янв. 14, 2025

Язык: Английский

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Effects of biochar on bacterial community dynamics and metabolic functions during the composting of food waste digestate

Biomass Conversion and Biorefinery, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Язык: Английский

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Study on Particle Size Promoting the Participation of Cotton Stalk Organic Matter in the Humification Process During Pig Manure Composting

Agriculture, Год журнала: 2025, Номер 15(5), С. 446 - 446

Опубликована: Фев. 20, 2025

In order to study the effect of cotton stalk particle size on humification, stalks different lengths (5 cm, 10 15 cm) were co-composted with pig manure for 49 days. The results showed that cm treatment (T2) maintained a high-temperature stage 8 days, and total organic carbon decreased by 60.0%. T2 highest cellulose (57.0%) hemicellulose (77.1%) degradation rate, lowest lignin accumulation (69.8%), humus content (34.94 g/kg), which was 88.1% higher than in initial stage. FTIR analysis revealed significant changes functional groups. aromatic C=C stretching vibration (1650 cm−1) group increased 79.8%, showing better aromatization degree other two Two-dimensional spectroscopy phenolic alcohol hydroxyl groups first involved followed polysaccharides, hemicellulose, lignin, structures, enhanced this material transformation pathway. Microbial diversity identified seven main phyla, among Planctomycetota Acidobacteria abundance, closely related cellulose, compounds. Second, abundance characteristic species such as Planifilum fulgidum also certain advantages group. summary, optimized microbial activity matter effectively regulated composting humification process.

Язык: Английский

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FULL-SCALE CO-COMPOSTING OF SEWAGE SLUDGE AND WASTE MATERIALS AT VARIOUS MIXING PROPORTIONS AND AERATION CONDITIONS TO PRODUCE STABILIZED COMPOST

Detritus, Год журнала: 2025, Номер 30, С. 53 - 62

Опубликована: Март 17, 2025

Two different sewage sludge (SS) waste materials were commercially co-composted with wood chips (WCh) and grass to determine their conversion potential elucidate the manner that it is affected by various process operational parameters. A blend of three SS streams composted more efficiently in terms temperature attained during than a single stream when co-treated WCh acting as bulking agent. facilitated accomplishment over sanitation limit concurrently establishment high decomposition rate long period. Further increasing fraction composting mixture had an insignificant effect on organics SS. The presence negative influence retained below sanitization limits entire process. Aeration led increment but all cases enhancement remained at levels lower 20 °C throughout trials. Concentration heavy metals mixtures was sufficiently reduced regardless type, mixing ratio, use secondary organic substrate aeration.

Язык: Английский

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