Biodegradation of Macromolecules in Complex Wastewaters

复杂废水中大分子的生物降解

• 批准号: 8912893
• 负责人: Bruce Logan
• 金额: $ 27.54万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8912893&HistoricalAwards=false
• 关键词: Biodegradation; Macromolecules; Complex; Wastewaters

The objective of this project is to improve the process by which fixed film, biofilm reactors are designed for treatment of wastewaters. The investigator plans to characterize the size distribution and biodegradability of organic matter in complex wastewaters as a step toward more efficient design of processes that utilize biologically active films. Initial efforts will be concentrated on the dextrans as model carbohydrates and albumins as model proteins. Following development of analytical techniques in the laboratory utilizing these readily characterized organic compounds, macromolecule consumption and production will be studied in complex wastewaters obtained from operational wastewater treatment systems that use a biofilm reactor process. Fixed-film, bioreactors are potentially capable of being more extensively used in place of or complementary to suspended-growth bioprocess systems. This research offers the potential of making it possible to design fixed-film systems without going through a pilot-plant stage for adapting design criteria to a specific wastewater's characteristics.

该项目的目标是改进固定膜、生物膜反应器用于废水处理的工艺。这位研究人员计划表征复杂废水中有机物的粒度分布和生物降解性，以此作为更有效地设计利用生物活性薄膜的过程的一步。最初的努力将集中在作为模型碳水化合物的右旋糖类和作为模型蛋白质的蛋白上。随着实验室中利用这些容易表征的有机化合物的分析技术的发展，将在使用生物膜反应器过程的运行废水处理系统中获得的复杂废水中研究大分子的消耗和生产。固定膜生物反应器有可能被更广泛地用于替代或补充悬浮生长生物处理系统。这项研究使设计固定膜系统成为可能，而不需要经过中试阶段，以使设计标准适应特定废水的特性。