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- Title
添加沼渣对餐厨垃圾堆肥腐殖化过程的影响.
- Authors
李龙涛; 董春华; 饶中秀; 张娜; 李微艳; 褚飞; 黄凤球
- Abstract
In order to better understand the influence of biogas residue addition on humification of kitchen waste compost, three treatments were designed. In these three treatments, the ratio of kitchen waste and biogas residue were:4∶0 (T1) ; 3∶1 (T2) ; 1∶3 (T3) . Rice straw was used as an auxiliary material for strip composting. The material degradation, humification degree, carbon and nitrogen loss, and compost quality of the kitchen waste were determined by measuring compost temperature, dry matter content, seed germination index, and total nitrogen, total organic carbon, humic acid, and fulvic acid content. The results of this study indicated that the available accumulated temperature ratio, degree of humus polymerization, and humification index of composting increased with the proportion of biogas residue. After 50 d, when composting was finished, the T2 treatment had the highest material degradation rate (37.16%), nitrogen content (23.89 g· kg-1 ), and germination index (90.59%) . It also had a high available accumulated temperature ratio (63.73%), degree of humus polymerization (0.84), and humification index (7.78%) . This study found that adding biogas residue improved the fermentation efficiency at the thermophilic stage of kitchen waste compost, enhanced the humification, and increased carbon and nitrogen losses.
- Subjects
DEGREE of polymerization; HUMIC acid; HUMIFICATION; FULVIC acids; COMPOSTING; GERMINATION
- Publication
Journal of Agro-Environment Science, 2023, Vol 42, Issue 5, p1148
- ISSN
1672-2043
- Publication type
Article
- DOI
10.11654/jaes.2022-1103