Effect of micronutrient selenium on greenhouse gas emissions and related functional genes during goat manure composting

Wang, Zhaoyu; Ding, Yongzhen; Ren, Xiuna; Xie, Jianwen; Kumar, Sunil; Zhang, Zengqiang; Wang, Quan

doi:10.1016/j.biortech.2022.126805

Cited by 28 publications

(8 citation statements)

References 50 publications

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“…Compared to CK, microbial richness and diversity of T1 (1% vermiculite treatment) were higher at the warming and maturity phases, but lower at the thermophilic phase. This difference resulted from the adsorption and catalytic effects of vermiculite [ 22 , 28 ]. These indices indicated that vermiculite addition exerted a significant influence on the diversity of the microbial community, and enhanced the abundance and balance of microbial species involved in the co-composting process ( Table S3 ).…”

Section: Resultsmentioning

confidence: 99%

“…The co-composting experiments were simultaneously carried out in two 50 L stainless steel reactors, as described in our previous work [ 22 ]. Briefly, 15 kg of sludge, 12.5 kg of waste mushroom residue, and 2.5 kg sawdust were thoroughly mixed with a shovel to adjust the C/N ratio of the initial mixture of composting raw materials to about 24.5 and the humidity to about 60%.…”

Section: Methodsmentioning

confidence: 99%

“…These samples were labeled as initial samples, and D2CK, D12CK, and D33CK samples for CK treatment, and D2T1, D12T1, and D33T1 samples for T1 treatment, respectively. Each collected sample was split into three parts [ 22 ]. Part one, as a fresh sample, was used to measure moisture content, pH, and electrical conductivity.…”

Section: Methodsmentioning

confidence: 99%

“…Part one, as a fresh sample, was used to measure moisture content, pH, and electrical conductivity. Part two was freeze-dried, ground, sieved through 0.1 mm sieve, and stored at 4 °C to test TOC, HS, HA, FA, N, P, K. Part three was stored at −80 °C for extracting DNA and a sequencing analysis [ 22 , 23 ]. All composting physicochemical properties were analyzed according to these methods described in our previous work [ 22 , 23 ] ( Table S1 ).…”

Section: Methodsmentioning

confidence: 99%

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Exploration of the Vermiculite-Induced Bacterial Community and Co-Network Successions during Sludge–Waste Mushroom Co-Composting

Yu,

Wang,

et al. 2024

Microorganisms

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Vermiculite is a clay mineral with unique physical properties that plays a significant role in plant cultivation, soil remediation, and solid waste management. In this research, we first explored how vermiculite-to-microbe interactions evolved during sludge–waste mushroom residue co-composting. Vermiculite’s addition had a substantial impact on the microbial α and β diversities, significantly changed the microbial community pattern, and strengthened the composting nutrient circulation through the formation of more specialist and generalist species. The microbial community characteristics exhibited common co-networks for resisting composting environment stresses. Vermiculite contributed to enhancing the keystone taxa Proteobacteria and Actinobacteriota and caused the ecological function network to diversify in the warming and maturation phases, with more complexity and tightness in the thermophilic phase (with super-generalist species existing). The enhanced microbial interactions induced by vermiculite possessed a greater capacity to facilitate the metabolisms of carbohydrates and amino acids and cellulolysis, thereby promoting composting humification, and nitrogen retention in the final compost and composting maturity. These findings are helpful for us to understand the biological process mechanisms of the effect of vermiculite additives on composting and contribute to the establishment of a theoretical framework for enhancing the microbial interactions in composting systems by adding vermiculite in practical applications.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Exploration of the Vermiculite-Induced Bacterial Community and Co-Network Successions during Sludge–Waste Mushroom Co-Composting

Yu,

Wang,

et al. 2024

Microorganisms

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“…Ren et al [ 13 ] reported that a high dose of sodium selenite reduced N 2 O emissions by 30.45–69.54%. In contrast, Wang et al [ 91 ] observed that adding sodium selenite increased N 2 O emissions by 29.7%, while sodium selenate reduced them by 69.3%. Adding sodium selenite and sodium selenate increased CH 4 emissions by 18.4% and 3.5%, respectively.…”

Section: Control Strategy For Gaseous Emissionsmentioning

confidence: 93%

Measures for Controlling Gaseous Emissions during Composting: A Review

Chen

et al. 2023

IJERPH

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Composting is a promising technology for treating organic solid waste. However, greenhouse gases (methane and nitrous oxide) and odor emissions (ammonia, hydrogen sulfide, etc.) during composting are practically unavoidable, leading to severe environmental problems and poor final compost products. The optimization of composting conditions and the application of additives have been considered to mitigate these problems, but a comprehensive analysis of the influence of these methods on gaseous emissions during composting is lacking. Thus, this review summarizes the influence of composting conditions and different additives on gaseous emissions, and the cost of each measure is approximately evaluated. Aerobic conditions can be achieved by appropriate process conditions, so the contents of CH4 and N2O can subsequently be effectively reduced. Physical additives are effective regulators to control anaerobic gaseous emissions, having a large specific surface area and great adsorption performance. Chemical additives significantly reduce gaseous emissions, but their side effects on compost application must be eliminated. The auxiliary effect of microbial agents is not absolute, but is closely related to the dosage and environmental conditions of compost. Compound additives can reduce gaseous emissions more efficiently than single additives. However, further study is required to assess the economic viability of additives to promote their large-scale utilization during composting.

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Municipal organic solid waste management in the concept of urban mining and circular economy: a model from Palestine

Al-Sari’,

Haritash

2024

J Mater Cycles Waste Manag

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Effect of micronutrient selenium on greenhouse gas emissions and related functional genes during goat manure composting

Cited by 28 publications

References 50 publications

Exploration of the Vermiculite-Induced Bacterial Community and Co-Network Successions during Sludge–Waste Mushroom Co-Composting

Exploration of the Vermiculite-Induced Bacterial Community and Co-Network Successions during Sludge–Waste Mushroom Co-Composting

Measures for Controlling Gaseous Emissions during Composting: A Review

Municipal organic solid waste management in the concept of urban mining and circular economy: a model from Palestine

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