The bacterial community drive the humification and greenhouse gas emissions during plant residues composting under different aeration rates DOI

Junyu Gu,

Yun Cao,

Qian Sun

et al.

Environmental Technology, Journal Year: 2024, Volume and Issue: 46(6), P. 848 - 862

Published: June 26, 2024

This study investigated the effects of different aeration intensities on organic matter (OM) degradation, greenhouse gas emissions (GHG) as well humification during plant residue composting. Three intermittent 0.084 (Tlow), 0.19 (Tmedium) and 0.34 (Thigh) L min-1kg-1 DM with 30 min on/30 off were conducted a lab-scale composting experiment. Results showed that OM mineralization in Thigh was more evident than Tlow Tmedium, resulting highest humic acid content. Humic content Tmedium 15.7% 18.5% higher Tlow. The average O2 concentration 4.9%, 9.5% 13.6% for Tlow, Thigh. Compared Thigh, reduced CO2 N2O by 18.3%-39.6% 72.4%-63.9%, but CH4 emission But total GHG lowest Linear Discriminant Analysis Effect Size analysis core bacteria within mainly belonged to Anaerolineaceae, which significantly negatively correlated CH4. Thermostaphylospora, Unclassified_Vicinamibacteraceae Sulfurifustis identified these genus postively emissions. Redundancy orgnic carbon, electrical conductivity key factors affecting evolution bacterial community.

Language: Английский

Role of Lignocellulosic Biomass Composition to Regulate Microbial Mutualism for Organic Mineralization and Humification during Digestate Composting DOI
Xingzu Gao, Zhicheng Xu,

Tong Shi

et al.

ACS ES&T Engineering, Journal Year: 2024, Volume and Issue: 4(4), P. 771 - 782

Published: March 11, 2024

This study investigated the performance of lignocellulosic wastes to regulate microbial interactions improve composting digestate from anaerobic digestion food waste regarding organic mineralization and humification. Garden waste, rice husk, cornstalks with diverse biomass compositions structures were representatively selected for comparison. High-throughput sequencing was integrated a modular network analysis decipher community their interactions. Results showed that mixing 15% garden (wet weight) more effective than husk enrich functional microbes (e.g., Tepidimicrobium Mortierella) promote interkingdom degradation humus formation. In particular, stronger bacterial intrakingdom mutualism observed cornstalk addition facilitate progressive succession bacteria in aerobic thus inhibit activities denitrifying reduce emissions methane nitrous oxide by 14.2–49.1%. Furthermore, lignin could effectively strengthen within fungi interaction mitigate carbon dioxide emission 39.8–42.7%. By contrast, weakened mutualisms retard biodegradation humification during composting. this provided fundamental understanding on selecting biotransformation simultaneously gaseous

Language: Английский

Citations

4
The inoculation of Bacillus paralicheniformis and Streptomyces thermoviolaceus enhances the lignocellulose degradation and microbial communities during spent mushroom substrate composting DOI
Jiao Zhang, Yajie Zou, Shunli Wang

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: unknown, P. 120157 - 120157

Published: Oct. 1, 2024

Language: Английский

Citations

3
Impact of Hydrated Lime Co-additives on Nitrogen Conservation during Livestock Waste Composting DOI

Donggyu Bang,

Woojin Chung, Jae-Jung Yun

et al.

Waste and Biomass Valorization, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

Citations

0
Effect of powerless-ventilation on large-scale facultative composting: maturity and pollutant gas emissions DOI Creative Commons
Yanling Chen, Xiaoqi Feng, Quan Yu

et al.

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104115 - 104115

Published: Feb. 1, 2025

Language: Английский

Citations

0
Low aeration rate during the cooling phase facilitated the removal of antibiotic resistance genes in the sludge and straw compost DOI
Bing Wang,

Xu Bao,

Jiawei Li

et al.

International Biodeterioration & Biodegradation, Journal Year: 2025, Volume and Issue: 201, P. 106047 - 106047

Published: March 8, 2025

Language: Английский

Citations

0
Mechanisms of Soil Microbial Community Adaptation in Cold-Region Wetlands Under Retrogressive Succession DOI Creative Commons
Junnan Ding,

Shaopeng Yu

Life, Journal Year: 2025, Volume and Issue: 15(5), P. 817 - 817

Published: May 20, 2025

Retrogressive succession alters soil conditions and microbial community dynamics in cold-region wetlands, yet its ecological implications remain understudied. This study explored the structure function of communities across three successional stages: swamp (SP), swamped meadow (SM), (MW). High-throughput 16S rRNA gene sequencing identified 2852 operational taxonomic units (OTUs), with 1682 shared among all stages (58.85%). Alpha diversity indices, including Shannon, Chao, ACE, Sobs, were significantly higher MW, Shannon index increasing by approximately 32% compared to SP, indicating enhanced richness evenness. In contrast, Simpson Coverage indices highest SP. Proteobacteria, Actinobacteriota, Acidobacteriota dominant phyla, showing distinct distributions stages. Beta analysis (PCoA NMDS) revealed clear separation communities. Soil organic carbon (SOC), pH, water content (SWC), cation exchange capacity (CEC), bulk density (BD) influenced composition distribution. Functional prediction using FAPROTAX BugBase indicated a shift from anaerobic metabolism, nitrogen fixation, cellulolysis SP aerobic chemoheterotrophy stress tolerance MW. These results demonstrate that adapt changing environments during retrogressive succession, highlighting their role ecosystem resilience wetlands.

Language: Английский

Citations

0
Condition optimizing, process predicting, and key physicochemical factor identifying for yak dung compost humification: Integrating response surface methodology with interpretable machine learning DOI

Penghui Jia,

Yimei Huang, Wei Guo

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 164537 - 164537

Published: June 1, 2025

Language: Английский

Citations

0
Effect of the addition of biochar and wood vinegar on the morphology of heavy metals in composts DOI

Fu Xuehan,

Xiaojun Guo, Weiguo Xu

et al.

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(56), P. 118928 - 118941

Published: Nov. 3, 2023

Language: Английский

Citations

6
Contribution of sulfur-containing precursors to release of hydrogen sulfide in sludge composting DOI
Lin Zhu, Wei Li,

Caihong Huang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 353, P. 120195 - 120195

Published: Feb. 1, 2024

Language: Английский

Citations

2
Effect of nano zero-valent iron, potassium persulphate, and biochar on maturity and gaseous emissions during multi-material co-composting DOI Creative Commons
Ying Liu, Ruonan Ma, Jiani Wang

et al.

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 32, P. 103309 - 103309

Published: July 27, 2023

Aerobic composting technology is expected to achieve higher quality composts. This study investigated the effects of exogenous additives on compost maturity and gaseous emissions during co-composting pig manure kitchen waste using nano zero-valent iron (NI), potassium persulphate (PS), cornstalk biochar (CB) (PB) additives. The results showed that CB PB reduced electrical conductivity (EC) increased maturity. All total greenhouse gas emissions, including methane (CH4), by 28.6-71.5%, while only addition nitrous oxide (N2O) 13.3%. PS resulted in lowest pH value, ammonia (NH3) decreased 53.1%. NI hydrogen sulfide 20.4%. Additionally, all additive dimethyl (Me2S) 18.6–44.2%,while they disulfide (Me2SS) 7.6–150.6%. Therefore, these additives, especially PS, which exhibited superior performance, can cooperate reduce odors composting.

Language: Английский

Citations

5