报告题目：Gigatechnology: Developing Sustainable Urban Infrastructure to Solve Gigaton Problems
报告人：John. C. Crittenden
School of Civil and Environmental Engineering
Georgia Institute of Technology
john.crittenden@ce.gatech.edu
Member of the US and Chinese National Academies of Engineering
Director of the Brook Byers Institute of Sustainable Systems
Hightower Chair of Civil and Environmental Engineering
Georgia Research Alliance Eminent Scholar of Sustainable Systems
邀请人：刘百仓
时间：2016.07.26 上午09：30
地点：四川大学望江校区行政楼130-1建筑与环境学院会议室
主办单位：新能源与低碳技术研究院、建筑与环境学院。
内容简介:Gigaton problems refer to those most severe problems challenging humanity, which can often be measured at the “gigaton (billion tons)” scale. For example, the annual world energy consumption is around 12 billion tons of oil equivalent (Gtoe), 80% of that from nonrenewable fossil fuels. The combustion of these fossil fuels emits approximately 29 billion tons (Gton) of CO2. In addition, the world uses more than 79 Gton of materials each year, only about 29% of which are renewable. These gigaton problems call for solutions which can meet the gigaton scale, or gigaton solutions.
In response to the urgent need of solving the gigaton problems, the urban system plays a critical role as the primary sink of resources and source of wastes. In particular, urban centers are complex, adaptive systems that act like ecosystems: They process resources (water, energy, and materials) and information, create infrastructure and services, and produce wastes. Worldwide, urban centers dominate resource consumption as well as waste and pollution generation. By examining the complex interactions among social decision making, economic drivers, (re)development, sustainability metrics, and surface transportation, a simulation-based decision support tool and strategies are being developed to allow stakeholders to design and choose infrastructure solutions that consume fewer resources and generate less waste. Case studies are presented for Atlanta, GA as an example to illustrate the ability of this tool to support the decision-making in constructing more sustainable cities.
报告人简介：
美国工程院院士；中国工程院外籍院士；美国现代化工领域最杰出100人；布鲁克•拜尔斯可持续发展系统研究所所长；Hightower首席与可持续发展系统GRA杰出学者；ES & T杂志副主编；美国物理化学领域最权威的学者。
高水平学术论文约200篇SCI，著作9部，其中《水处理原理与设计》为美国本科生、研究生教材及设计、科研人员参考用书，100余万字。专利5项。
主要研究方向:
可持续发展工程，物理化学处理过程（离子交换、高级氧化过程、催化氧化过程、光催化氧化过程、电解、吸附、电吸附与气体分离过程），膜法水处理，生物能源，纳米技术，有机物在饱和与非饱和地下水中的传输，固定床生物反应器的模拟，吸附剂（光催化、水与气相中低温催化剂），溶胶-凝胶化学方法制备沸石与催化剂，表面化学与热动力学（预测吸附能力与表面催化速率常数），传质，水与污水处理过程的数学方法。
