生物炭添加食物垃圾堆肥:特性综述

IF 6 Q1 ENGINEERING, MULTIDISCIPLINARY Results in Engineering Pub Date : 2024-10-12 DOI:10.1016/j.rineng.2024.103118
Mehdi Ebrahimi , Sahar Gholipour , Gholamreza Mostafaii , Fatemeh Yousefian
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引用次数: 0

摘要

近年来,管理厨余垃圾(FW)并将其转化为堆肥的关注度显著提高,这是因为厨余垃圾对可持续农业和减少废物具有潜在优势。生物炭是一种通过热解从生物质中提取的富碳改良剂,因其在提高堆肥质量方面的潜在优势而备受关注。本系统综述分析了 11 项研究,以评估生物炭在优化 FW 堆肥中的作用。研究揭示了添加生物炭的几个好处,包括缩短达到嗜热阶段的时间和提高堆肥温度。生物炭还通过保持氮含量、减少氨排放和促进有利于微生物活动的 pH 值来改善堆肥质量。其多孔结构为微生物创造了合适的栖息地,有可能加速有机物降解。此外,生物炭的高阳离子交换容量(CEC)有助于固定可能有毒的金属,减少它们在最终堆肥中的含量。然而,我们对生物炭在改善堆肥质量方面益处的了解仍不全面。所审查的研究忽略了对所产生堆肥的微生物质量以及生物炭应用的成本效益进行评估。未来的研究应优先考虑长期研究,以评估植物对经生物炭改良的土壤的吸收情况。此外,还应调查生物炭与堆肥的最佳比例,以及土地施用的最有效时间和方法。填补这些知识空白对于优化生物炭在粮食堆肥中的利用,从而实现可持续的废物管理方法和提高土壤肥力至关重要。
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Biochar-amended food waste compost: A review of properties
The attention towards managing food waste (FW) and transforming it into compost has significantly increased in recent years, driven by the potential advantages it offers for sustainable agriculture and waste reduction. Biochar, a carbon-rich amendment derived from biomass through pyrolysis, has gained significant attention due to its potential benefits to enhance compost quality. This systematic review analyzed 11 studies to assess the role of biochar in optimizing FW composting. Studies revealed several benefits of biochar addition, including shortening of the time to reach the thermophilic stage and an increase in composting temperature. Biochar also improved compost quality by maintaining nitrogen content, reducing ammonia emissions, and promoting a favorable pH for microbial activities. Its porous structure created a suitable habitat for microbes, potentially accelerating organic matter degradation. Additionally, biochar's high cation exchange capacity (CEC) helped immobilize potentially toxic metals, reducing their availability in the final compost. However, our knowledge of biochar's benefits in improving compost quality remains incomplete. The reviewed studies neglected to evaluate the microbial quality of the resulting compost and the cost-effectiveness of biochar application. Future research should prioritize long-term studies to assess plant uptake from soils amended with biochar. Additionally, investigations into the optimal biochar-to-compost ratio, as well as the most effective timing and methods for land application, should be undertaken. Addressing these knowledge gaps is crucial for optimizing the utilization of biochar in FW composting, thereby leading to sustainable waste management practices and enhanced soil fertility.
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来源期刊
Results in Engineering
Results in Engineering Engineering-Engineering (all)
CiteScore
5.80
自引率
34.00%
发文量
441
审稿时长
47 days
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