Evaluation of composting parameters, technologies and maturity indexes for aerobic manure composting: A meta-analysis

Ji, Zhengyu; Zhang, Liyun; Liu, Yuanwang; Li, Xiaqing; Li, Zhaojun

doi:10.1016/j.scitotenv.2023.163929

Cited by 49 publications

(2 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There was a noticeable decrease in TN during composting, possibly due to more significant gas emissions (e.g., NH 3 and N 2 O) during the thermophilic stage. Compost maturity is often assessed using the C/N ratio, where a value of 10~15 is considered indicative [33]. The GI of the final compost ranged from 0 to 120%.…”

Section: Discussionmentioning

confidence: 99%

Effects of Two Different Proportions of Microbial Formulations on Microbial Communities in Kitchen Waste Composting

Jiang,

Zhang,

Cui

et al. 2023

Microorganisms

View full text Add to dashboard Cite

The objective of this research was to investigate the effect of bulking agents on the maturity and gaseous emissions of composting kitchen waste. The composing experiments were carried out by selected core bacterial agents and universal bacterial agents for 20 days. The results demonstrated that the addition of core microbial agents effectively controlled the emission of typical odor-producing compounds. The addition of core and universal bacterial agents drastically reduced NH3 emissions by 94% and 74%, and decreased H2S emissions by 78% and 27%. The application of core microbial agents during composting elevated the peak temperature to 65 °C and in terms of efficient temperature evolution (>55 °C for 8 consecutive days). The organic matter degradation decreased by 65% from the initial values for core microbial agents were added, while for the other treatments the reduction was slight. Adding core microbial agents to kitchen waste produced mature compost with a higher germination index (GI) 112%, while other treatments did not fully mature and had a GI of <70%. Microbial analysis demonstrated that the core microbial agents in composting increased the relative abundances of Weissella, Ignatzschineria, and Bacteroides. Network and redundancy analysis (RDA) revealed that the core microbial agents enhanced the relationship between bacteria and the eight indicators (p < 0.01), thereby improving the bio transformation of compounds during composting. Overall, these results suggest that the careful selection of appropriate inoculation microorganisms is crucial for improved biological transformation and nutrient content composting efficacy of kitchen waste.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of Two Different Proportions of Microbial Formulations on Microbial Communities in Kitchen Waste Composting

Jiang,

Zhang,

Cui

et al. 2023

Microorganisms

View full text Add to dashboard Cite

show abstract

“…The difference in degradation effect was mainly due to the fact that the organic fertilizer-processing process ensured sufficient oxygen through regular mechanized turning of the pile, and was more conducive to the growth of microorganisms through batching and C/N ratio regulation. Ji's research found that optimized aeration did not affect GI (germination index), final C/N and (Final C/N)/(Initial C/N) [39]. The difference of C, N, P and moisture between commercial organic fertilizer and composted manure mainly lay in C/N ratio regulation (sawdust, straw, and by-product) and chemical additives (phosphoric acid, Ca-superphosphate, phosphogypsum, and Mg-P salts).…”

Section: Characteristics Of Ses-eeq Loss From Soil-manure Mixturementioning

confidence: 99%

Study of Steroid Estrogen Loss in Soil after the Application of Composted Manure as a Fertilizer

Feng,

Shen,

et al. 2024

Water

View full text Add to dashboard Cite

Steroid estrogens (SEs) play a significant role as endocrine-disrupting substances, and one of their major sources is animal manure. However, there is limited information available regarding the loss of SEs in farmland soil after the application of commercial composted animal manure or fertilizers. To address this gap, our study aimed to simulate rainfall and flood irrigation scenarios and investigate the loss characteristics of SEs, as well as Chemical Oxygen Demand (COD), Total Nitrogen (TN), and Total Phosphorus (TP) in runoff from soil–manure mixtures. The results demonstrated that the loss concentrations of SEs (73.1 ng/L of the mean E2β active equivalent factor) presented a potential environmental risk. Additionally, substituting composted manure with commercial organic fertilizers lead to a significant reduction in TP (maximum 56%) and TN (maximum 24%) loss. Consequently, the application of commercial organic fertilizers offers considerable advantages in maintaining nitrogen and phosphorus fertilization efficiency while controlling SEs loss. Furthermore, our study explored the synergistic pollution mechanism among these pollutants and observed significant correlations between SEs and TN, TP, and COD loss concentrations, indicating the simultaneous occurrence and migration of these pollutants in agricultural non-point source pollution. These results provide valuable insights into the environmental risk associated with SEs from agricultural non-point sources.

show abstract

Wastewater Treatment Sludge and Agricultural Wastes: Management by Composting Process

Ucaroglu,

Atalay

2024

Water Air Soil Pollut

View full text Add to dashboard Cite

This study aimed to investigate the compostability of wastewater treatment sludge and evaluate the effects on compost quality of adding cotton gin waste and peanut shell. For this purpose, treatment sludge was mixed with cotton gin waste in the ratios of 60:40 in M1 reactor and 80:20 in M2 reactor, while in M3 and M4 reactors, treatment sludge was mixed with peanut shell in the same proportions. The highest temperatures were reached in reactors M2 (65.2 °C) and M4 (68.7 °C) where 80% treatment sludge was added. These reactors also experienced the highest organic matter losses of 42.2% and 31.5%, respectively. It can be stated that a faster microbial decomposition and stabilization occurred in these reactors. It can be said that the composting process may be a preferable method for the management of treatment sludge and agricultural wastes. Furthermore, the outcomes of the study can serve the food industry and agriculture sector through effective bioconversion of organic waste. Graphical Abstract

show abstract

Evaluation of composting parameters, technologies and maturity indexes for aerobic manure composting: A meta-analysis

Cited by 49 publications

References 82 publications

Effects of Two Different Proportions of Microbial Formulations on Microbial Communities in Kitchen Waste Composting

Effects of Two Different Proportions of Microbial Formulations on Microbial Communities in Kitchen Waste Composting

Study of Steroid Estrogen Loss in Soil after the Application of Composted Manure as a Fertilizer

Wastewater Treatment Sludge and Agricultural Wastes: Management by Composting Process

Contact Info

Product

Resources

About