Biogas Generation from Co-Digestion Waste Systems: The Role of Water Hyacinth

Adedeji A. Adelodun, Temitope M. Olajire, Ochuko Mary Ojo
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引用次数: 2

Abstract

Using biomass as a renewable energy source has earned tremendous interest from researchers in recent decades, especially because the technology is environmentally benign. This article reviews the recent methods for generating biogas from water hyacinth (WH, Eichornia crassipes), arguably the world’s most evasive aquatic macrophyte. Therefore, various economic, environmentally benign, and renewable procedures that enhance biogas production from WH biomass are reviewed. WH has been co-digested with numerous waste types, including poultry droppings, municipal wastes, animal tissue wastes, pig wastes, cow dungs, etc., recording varying success degrees. Other studies focused on optimizing the operation parameters, such as mixing ratio, contact time, pH, temperature, organic loading rate, etc. We observed that most attempts to generate biogas from WH alone were not promising. However, when co-digested with other biomasses or wastes, WH either increases the process rate or improves the methane yield content. Also, the potential of WH as a phytoremdiator-cum-biogas source was investigated. This chapter provides mathematical models, scale-up installation models, and specific experimental results from various studies to guide future study plans toward optimizing CH4 generation from WH co-digestion.
由共消化废物系统产生沼气:水葫芦的作用
近几十年来,利用生物质作为一种可再生能源已经引起了研究人员的极大兴趣,特别是因为这种技术对环境无害。本文综述了水葫芦(WH, Eichornia crassipes)产生沼气的最新方法,水葫芦可以说是世界上最难以逃避的水生大型植物。因此,各种经济,环保,可再生的程序,提高沼气生产从WH生物质进行审查。WH与多种类型的废物共消化,包括家禽粪便、城市垃圾、动物组织废物、猪粪便、牛粪等,并取得了不同程度的成功。其他研究主要集中在优化操作参数,如混合比、接触时间、pH、温度、有机负载率等。我们观察到,大多数仅从WH产生沼气的尝试都没有希望。然而,当与其他生物质或废物共消化时,WH要么提高了过程速率,要么提高了甲烷产率。此外,还对WH作为植物修复剂兼沼气源的潜力进行了研究。本章提供了各种研究的数学模型、放大安装模型和具体的实验结果,以指导未来的研究计划,优化WH共消化产生CH4。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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