2022/8/1/ · The addition of biogas residue to composting piles promotes microbial activity and enhances C and N bioavailability, preventing the release of N 2 O caused by insufficient C elements (Meng et al., 2016). However, no definitive consensus was reached on the contribution of biogas residue to greenhouse gas emissions (Li et al., 2020).
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A membrane-covered composting system was used to investigate the odor emission and microbial community succession during biogas residue composting. Results showed that in comparison with the control (CK) group, the NH 3 and H 2 S emissions outside the membrane of the membrane-covered (CT) group decreased by 58.64% and 38.13%,
2022/10/1/ · The original composting materials were modified to match the required moisture content and carbon to nitrogen (C/N) of 61.0 % and 24.9, respectively, by combining the raw materials with a specified wet weight ratio (biogas residue: food waste: sawdust = 6:2:3). Table 1 listed the specific physicochemical properties of the raw materials.
Abstract. Effect of diverse Lactobacillus amylophilus, Geobacillus thermoleovorans, and Bacillus subtilis inoculation patterns on the co-composting performance of food waste and biogas residue was explored. Experimental results revealed that, compared to the single-stage inoculation and non-inoculation groups, the multistage inoculation pattern
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2021/5/15/ · The granulated biogas residue material under investigation is a product of the biomethanation plant located at the “Ferme de Faascht”, where the substrates utilized are mainly liquid and solid bovine manure, crop residues (silage maize and grass) and organic waste from the food industry. The hydraulic retention time in this biogas plant is
2022/5/23/ · The maturity of food waste biogas residue during composting was investigated by multivariate interaction of environmental, maturity, and nutrient parameters, using structural equation modeling (SEM). Results showed that the temperature of T2
2022/10/8/ · the aerobic composting of biogas residue was low, which significantly reduced secondary pollution during the composting process. Keywords: biochar; biogas residue; aerobic composting; heavy metal; environmental risk assessment 1. Introduction With the large-scale developments in the livestock and poultry breeding industries,
The nirK gene was abundant through composting process. Biogas residues increased the abundance of denitrification genes, resulting in further release of N 2 O. Biochar enhanced nosZ gene abundance and accelerated the reduction of N 2 O. Nitrate reductase (NR), nitrite reductase (NiR), N 2 O reductase (N 2 OR), and ammonia monooxygenase (AMO
2022/9/1/ · This study examined the effects of biochar, biogas residue, and their combined amendments on CO 2 and CH 4 emission, enzyme activity, and related functional genes during rice straw composting. Results showed that the biogas residue increased CO 2 and CH 4 emissions by 13.07 % and 74.65 %, while biochar had more obvious
The effects of different proportions of cattle manure (CM) and biogas residue (BR) on the degradation of lignocellulose and humification during composting were investigated. The results showed that increasing the CM content prolonged the thermophilic period duration, thus promoting organic matter degradation and enhancing the humification
2012/10/1/ · The results reveal that compost and biogas residues are suitable potting substrates. The incorporation of additives mixed into the basic materials partly resulted in higher yield and nutrient uptake.
2018/8/1/ · Dissolved organic matter (DOM) extracted from composting of biogas residue was characterized using spectroscopic techniques. Spectral parameters, specific UV absorbance at 254 (SUVA 254), ratios of spectral slopes (S R), and humification index (HIX) were used to assess the structural characteristics of the DOM.During composting,