Mixed-culture biotechnologies producing storage compounds as biofuels and biomaterials: engineering waste treatment communities

生产储存化合物作为生物燃料和生物材料的混合培养生物技术：工程废物处理社区

• 批准号: 341393-2011
• 负责人: Frigon, Dominic
• 金额: $ 1.53万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=527285
• 关键词: Mixed; culture; biotechnologies; producing; storage

Improving the sustainability of wastewater treatment systems passes in part by the recovery of value added products and energy such as bioplastics (e.g., polyhydroxyalkanoates, PHA) and biodiesel (from lipids). Microbial communities in activated sludge treatment systems naturally produce storage compounds because of the rapidly changing conditions of their environment. Since carbon storage compounds include PHA, triacyglycerol lipids, and glycogen, wastewater treatment systems are potential powerhouses for the production of industrially relevant biomaterials. In the case of PHA, the current pure culture production costs are 4-9 times higher than the cost of chemically synthesized plastics. It is clear that production from a waste stream where substrate and sterilization would not be necessary has the potential to reduce tremendously this cost.

提高废水处理系统的可持续性部分通过回收增值产品和能源，如生物塑料（例如，聚羟基链烷酸酯，PHA）和生物柴油（来自脂质）。活性污泥处理系统中的微生物群落由于其环境条件的快速变化而自然地产生储存化合物。由于碳储存化合物包括PHA、三酰甘油脂质和糖原，因此废水处理系统是生产工业相关生物材料的潜在动力来源。以PHA为例，目前纯培养生产成本比化学合成塑料成本高4-9倍。很明显，从废物流中生产，不需要底物和灭菌，有可能大大降低这一成本。