Bio-based Flocculants for Livestock Manure Water Treatment

用于畜禽粪便水处理的生物基絮凝剂

• 批准号: 523060-2018
• 负责人: Taylor, Scott
• 金额: $ 1.81万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=666624
• 关键词: Bio; based; Flocculants; Livestock; Manure

Livestock Water Recycling (LWR) is the world's leading provider of livestock water treatment technology.**Their innovative technology uses a combination of mechanical and chemical treatments to remove**contaminants and separate fertilizer nutrients from manure water. The result is segregated fertilizer nutrients**and clean water that can be reused. Key to their technology is the use of a flocculant which helps separate the**inorganic and organic material from the manure water. The current LWR system utilizes synthetic, cationic**polyacrylamide (cPAM) as a flocculant. Although this flocculant is effective it degrades slowly and does not**meet organic certification standards. The focus of this application is to examine two natural polysaccharides,**chitosan and starch, both modified and unmodified as replacements for cPAM for flocculation of manure**water. Natural flocculants degrade faster than PAM. Moreover, the solid fraction separated using natural**flocculants would meet organic certification standards as it would be considered an organic fertilizer.

牲畜水循环（LWR）是世界领先的牲畜水处理技术提供商。他们的创新技术使用机械和化学处理相结合的方法来去除污染物，并将肥料养分从粪肥水中分离出来。其结果是分离的肥料养分 ** 和清洁的水，可以重复使用。他们技术的关键是使用絮凝剂，帮助从粪肥水中分离无机和有机物质。目前的LWR系统使用合成的阳离子聚丙烯酰胺（cPAM）作为絮凝剂。虽然这种絮凝剂是有效的，但它降解缓慢，不符合有机认证标准。本申请的重点是研究两种天然多糖，** 壳聚糖和淀粉，两者都是改性的和未改性的，作为cPAM的替代物，用于粪便 ** 水的絮凝。天然絮凝剂比PAM降解更快。此外，使用天然 ** 絮凝剂分离的固体部分将符合有机认证标准，因为它将被视为有机肥料。