对喂养幼虫的昆虫粪便和有机废物沥滤液进行初步沼气生产评估:约翰内斯堡工厂案例研究

IF 3.5 3区 工程技术 Q3 ENERGY & FUELS Energy Science & Engineering Pub Date : 2024-09-16 DOI:10.1002/ese3.1770
Charles Rashama, Elijah M. Motsetsi, Riann Christian, Tonderayi S. Matambo
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引用次数: 0

摘要

对昆虫碎屑和来自废物(幼虫原料)堆的沥滤液的生物甲烷潜力进行了评估。虫渣来自于使用果蔬废料的黑兵蝇幼虫(BSFL)养殖场。对这两种废物流进行了特征描述,并利用其成分、近似值和最终分析结果来估算这些材料的甲烷产量。根据所使用的计算方法,残渣的生物甲烷潜能(BMP)估计值为 149-275 升/千克VS。这一结果与牛粪的经验研究结果相差无几,牛粪的生物甲烷潜能值为 110-275 升/千克VS。牛粪是全球最受欢迎的沼气原料。据报告,渗滤液的生物放大系数估计为 150 升/千克 COD。我们得出的结论是,利用 BSFL 碎屑和果蔬垃圾渗滤液生产沼气在技术上是可行的。不过,在将这些研究成果商业化之前,仍有必要进行标准 BMP 实验和半连续中试研究。执行这些额外的试验是为了验证这些发现,确定生命周期属性和长期工艺稳定性,从而确定使用这些潜在基质生产沼气的经济性,以此作为在水果和蔬菜行业实施循环的一种策略。
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Preliminary biogas production assessment on insect frass and leachates of the organic wastes fed to larvae: A Johannesburg-based factory case study

The biomethane potential of insect frass and leachates from waste (larvae feedstock) stockpile was evaluated. Frass was derived from a black soldier fly larvae (BSFL) operation that uses a fruit and vegetable waste diet. The two waste streams were characterized and the results of their compositional, proximate, and ultimate analysis were used in estimating methane yields from these materials. The estimated biomethane potential (BMP) of the frass ranged 149–275 L/kgVS depending on the calculation method used. This result compares well with that of empirical studies for cow manure whose BMP ranges 110–275 L/kgVS. Cow manure is the most popular biogas feedstock globally. Leachates reported an estimated BMP of 150 L/kgCOD. We conclude that it may be technically feasible to produce biogas from BSFL frass and from fruit and vegetable waste leachates. However, standard BMP experiments and semicontinuous pilot studies are still necessary before commercialization of these findings. These extra tests are executed to validate these findings and ascertain the life cycle attribute and long-term process stability and hence determine the economics of using these potential substrates for biogas production as a strategy to implementing circularity in the fruit and vegetable industry.

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来源期刊
Energy Science & Engineering
Energy Science & Engineering Engineering-Safety, Risk, Reliability and Quality
CiteScore
6.80
自引率
7.90%
发文量
298
审稿时长
11 weeks
期刊介绍: Energy Science & Engineering is a peer reviewed, open access journal dedicated to fundamental and applied research on energy and supply and use. Published as a co-operative venture of Wiley and SCI (Society of Chemical Industry), the journal offers authors a fast route to publication and the ability to share their research with the widest possible audience of scientists, professionals and other interested people across the globe. Securing an affordable and low carbon energy supply is a critical challenge of the 21st century and the solutions will require collaboration between scientists and engineers worldwide. This new journal aims to facilitate collaboration and spark innovation in energy research and development. Due to the importance of this topic to society and economic development the journal will give priority to quality research papers that are accessible to a broad readership and discuss sustainable, state-of-the art approaches to shaping the future of energy. This multidisciplinary journal will appeal to all researchers and professionals working in any area of energy in academia, industry or government, including scientists, engineers, consultants, policy-makers, government officials, economists and corporate organisations.
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