Conversion of Paper Sludge to Ethanol and Potentially Recyclable Minerals

9613342林德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：将大量的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；相对于单独进行这两项工作，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的技术可行性；为新兴的生物质乙醇产业提供一个切入点和试验场。建议开展的研究建立在P.I.收集的关于纸泥组成和转化为乙醇的广泛数据库的基础上。建议的任务将表征、改进和评估：--将经过处理和未处理的纸泥转化为乙醇的连续同时糖化和发酵(SSF)。-使用里氏木霉从造纸污泥中生产纤维素酶，用于SSF系统。-使用嗜热菌将造纸污泥连续转化为乙醇。-液体热水(LHW)预处理，作为一种增加转化为乙醇的高转化率的纸泥的比例的手段，并-根据评估其适宜回收的程度对矿物残留物进行测量。

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.