超越农业废弃物:基于土豆地表生物质的热化学转换原料表征
1Department of Geography, Earth, and Environmental Sciences, University of Northern British Columbia, Prince George, British Columbia, V2N 4Z9, Canada.
Bioresource technology
|December 6, 2024
概括
像土豆生物质一样,农业残留物为生物经济系统提供了可持续的资源. 优化残留物回收时间可以提高生物质的利用率,并降低热化学转化成本.
科学领域:
- 农业科学 农业科学
- 生物质的表征生物质的表征
- 循环经济是一个循环经济.
背景情况:
- 农业残留物是传统生物质来源的可持续替代品,减少了对森林和生物多样性的压力.
- 有效利用农业废物可以改善废物管理,减轻作物领域的排放,支持循环生物经济系统.
- 鉴定草本生物质的特征,特别是土豆地表残留物,对于优化其在热化学转化中的使用至关重要.
研究的目的:
- 评估土豆地表生物质作为热化学转化原料的潜力.
- 描述土豆的生物质特性,包括水含量和丰度,在不同的植物部分和生长阶段.
- 确定残留物回收的最佳时间,以降低预处理成本并增强生物质利用战略.
主要方法:
- 重力测量分析以确定土豆地表生物质中的水含量.
- 测量不同植物部分 (叶子,茎) 的生物质丰度.
- 评估植物随着时间的推移 (种植后70天) 的发展,以确定生物质峰值阶段.
主要成果:
- 马的地表生物质含水量很高 (89%),因植物部分而异.
- 叶子和主要茎是最丰富的生物质组成部分.
- 植物最大发育发生在种植后70天 (DAP),而高度发育在40 DAP达到顶峰.
结论:
- 土豆地表生物质是热化学转换的可行原料,有助于循环生物经济原则.
- 了解生物质成分和最佳恢复时间 (例如,70 DAP) 是有效生物质管理和降低成本的关键.
- 战略性残留物回收可以显著降低预处理费用,促进采用合适的转化技术.
相关概念视频
01:27Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
01:27Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
01:28Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...