Development of agri-food waste biogas system as an alternative energy source for local farm product processing unit

开发农业食品废弃物沼气系统作为当地农产品加工单位的替代能源

• 批准号: 470364-2014
• 负责人: Rakshit, Sudip
• 金额: $ 1.82万
• 依托单位: Lakehead University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=564106
• 关键词: Development; agri; food; waste; biogas

In Thunder Bay, at present, less than three percent of the food waste is separated and treated. This is done primarily through composting. The rest is disposed of in landfills. An obvious alternate that is being considered is the utilization of these organic wastes for energy and manure production. 'Belluz farms' located in Thunder Bay, is interested in onsite production of biogas using its agricultural, food processing wastes generated at its facilities and those produced at local restaurants it supplies. This scheme has been limited by (a) the cost, scale and size of the commercially available systems which can work under their production, utilization and recycle conditions and (b) the non-homogeneous nature of wastes used to produce biogas. Therefore, they are interested in research which would lead to the construction of an innovative onsite biogas system (anaerobic) using nonhomogenous local farm/food wastes. This will bring them direct benefits in terms of energy cost-savings, waste management, nutrient recovery and compost production. The main technical challenge will be to optimize biogas production using non-homogenous farm/food wastes. In order to realize high methane yield in the biogas, it is planned to initially explore the effects of mixing various types of food waste generated at Belluz Farms in different proportions. The main objective of the study including characterization of wastes as well as optimization of biogas production will be carried out at the Biorefining Research Institute (BRI) at Lakehead University. The research studies will determine the digestibility of food wastes individually and as mixtures under mesophilic and thermophillic conditions. The digestibility will be evaluated in terms of biogas and methane yields and volatile solids reduction. The results will aid Belluz Fram in designing an on-farm-biogas-system that uses local feedstock to produce high quality biogas for heat and energy and meet their energy demands. In addition, designing the biogas system and obtained results will contribute to applied research that will make such systems more accessible to similar farm scale operations.

在桑德贝，目前只有不到3%的食物垃圾被分离和处理。这主要是通过堆肥完成的。其余的则被丢弃在垃圾填埋场。正在考虑的一个明显的替代方案是利用这些有机废物生产能源和粪便。位于桑德贝的Belluz Farmers对利用其设施产生的农业和食品加工废物以及供应的当地餐厅产生的沼气现场生产感兴趣。该计划受到以下因素的限制：(A)可在其生产、利用和再循环条件下工作的商用系统的成本、规模和大小，以及(B)用于生产沼气的废物的非均质性。因此，他们感兴趣的研究将导致建立一个创新的现场沼气系统(厌氧)利用非均质的当地农场/食物垃圾。这将在节省能源成本、废物管理、养分回收和堆肥生产方面为它们带来直接好处。主要的技术挑战将是优化利用非均质农场/食物废弃物的沼气生产。为了实现沼气的高甲烷产量，计划初步探索将贝鲁兹农场产生的各种食物垃圾按不同比例混合的效果。这项研究的主要目标包括废物的特性以及沼气生产的优化，将在莱克黑德大学的生物精炼研究所(BRI)进行。研究将确定食物垃圾在中温和嗜热条件下单独和作为混合物的消化率。消化率将通过沼气和甲烷产量以及挥发性固体减少来评估。研究结果将有助于Belluz Fram设计一种农场沼气系统，该系统使用当地原料生产高质量的沼气用于供热和能源，并满足他们的能源需求。此外，设计沼气系统和所获得的结果将有助于应用研究，使这类系统更容易被类似的农场规模经营所利用。