Conversion of Paper Sludge to Ethanol and Potentially Recyclable Minerals

将造纸污泥转化为乙醇和潜在可回收矿物质

• 批准号: 9613342
• 负责人: Lee Lynd
• 金额: $ 38万
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9613342&HistoricalAwards=false
• 关键词: Conversion; Paper; Sludge; Ethanol; Potentially

9613342 Lynd The proposed research will address conversion of waste paper sludge to ethanol and recyclable minerals. Potential benefits derived include: diverting a significant industrial waste into a useful product; improving both the cost effectiveness and environmental impact of paper recycling; raising the cost-effectiveness of ethanol production and mineral recovery from paper sludge relative to either of these endeavors undertaken alone; improving the technical feasibility of recovering and reusing minerals from paper sludge; providing a entry point and proving ground for the emergent biomass ethanol industry. Research is proposed that builds upon an extensive data base on paper sludge composition and convertibility to ethanol assembled by the P.I. Proposed tasks will characterize, improve and evaluate: --continuous simultaneous saccharification and fermentation (SSF) for conversion of pretreated and non-pretreated paper sludges to ethanol. --use of Trichoderma reesei for the production of cellulase from paper-sludge for use in an SSF system. --use of thermophilic bacteria for continuous conversion of paper sludge to ethanol. --liquid hot water (LHW) pretreatment as a means to increase the fraction of paper sludges that exhibit high conversion to ethanol and --Perform measurements on mineral residues pursuant to evaluating their amenability to recycling.

9613342 Lynd 拟议的研究将解决废纸污泥转化为乙醇和可回收矿物的问题。 潜在的好处包括： 将大量工业废物转化为有用的产品；提高纸张回收的成本效益和环境影响； 相对于单独进行的任何一项努力，提高乙醇生产和从造纸污泥中回收矿物的成本效益；提高从造纸污泥中回收和再利用矿物质的技术可行性；为新兴的生物质乙醇产业提供切入点和试验场。 拟议的研究建立在 P.I. 收集的有关造纸污泥成分和乙醇转化性的广泛数据库的基础上。 拟议的任务将描述、改进和评估： --连续同步糖化和发酵（SSF），用于将预处理和未预处理的造纸污泥转化为乙醇。 --使用里氏木霉从造纸污泥中生产纤维素酶，用于 SSF 系统。 ——利用嗜热细菌将造纸污泥连续转化为乙醇。 --液体热水（LHW）预处理作为增加造纸污泥比例的一种手段，这些污泥表现出高乙醇转化率，以及 --根据评估其回收能力对矿物残留物进行测量。