CAREER: The Coagulation and Gravitational Settling of Particles in Aqueous Environments

9502493资助本研究人员应美国国家科学基金教师早期职业发展（Career）计划（NSF 94-101）的要求获得资助。该计划的目的是鼓励学术教师作为教育工作者和研究人员的早期发展。这名研究者计划进行的研究是为了确定生物生产的聚合物对水悬浮液中聚集体形成和沉淀速度的影响。他计划通过比较一个使用聚苯乙烯微球的相对清洁的系统和一个由异养细菌产生的细胞外多糖的系统来表征聚集过程。研究者的教育计划集中在现代化微生物过程核心本科课程的实验室组成部分，并与涉及物理和化学过程的环境核心的其他实验室基础课程进行协调。该研究员计划进行的研究预计将用于改进工程设计过程中的程序，以去除最初存在于水悬浮液中或在水和废水处理过程中产生的颗粒。本项目教育部分的目标是为工程本科学生提供环境工程实践中使用的化学和微生物系统之间存在的基本关系的插图。＊＊＊

9502493 Grant This is an award to provide the support this investigator requested in response to NSF 94-101, the National Science Foundation Faculty Early Career Development (CAREER) Program. The intent of this program is to encourage the early development of academic faculty as educators and researchers. The research this investigator plans to conduct is directed toward determining the effects of biologically produced polymers on the rate at which aggregates form and settle from aqueous suspension. He plans on characterizing the aggregation process by comparing a relatively clean system using polystyrene microspheres with one involving exocellular polysaccharides produced by heterotrophic bacteria. The investigator's education plan centers on modernizing the laboratory component of a core undergraduate course on microbial processes and coordinating this with other laboratory based courses in the environmental core involving physical and chemical processes. The research this investigator plans on conducting is expected to be used in improving procedures used in the engineering design of processes for removal of particles originally present in aqueous suspension or produced during water and wastewater treatment processes. The goal of the educational component of this project is to provide undergraduate engineering students illustrations of the fundamental relationships that exist between chemical and microbial systems used in environmental engineer practice. ***