美国北卡州立大学Jay J. Cheng教授访问环境学院并作学术讲座
发布日期：2019年06月22日 阅读： 次
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| 应环境学院邀请, 美国北卡州立大学Jay J. Cheng教授访问我院并作下述学术讲座: 时间: 2019-06-24 地点: 环境馆(会议室待定) 题目: Bioresource Recovery from Wastewater with Growing Duckweed for the Production of Fuel Ethanol and Animal Feed 摘要: Duckweed is an aquatic plant that can be used to recover nutrients from wastewaters. The grown duckweed can be a good resource of proteins and starch, and utilized for the production of value-added products such as animal feed and fuel ethanol. In the last 20 years we have been working on growing duckweed on anaerobically treated swine wastewater and utilizing the duckweed for fuel ethanol and animal feed production. Duckweed strains that grew well on the swine wastewater were screened in laboratory and greenhouse experiments. The selected duckweed strains were then tested for nutrient recovery under laboratory and field conditions. The rates of nitrogen and phosphorus uptake by the duckweed growing in the laboratory and field systems were determined in the studies. The mechanisms of nutrient uptake by the duckweed and the growth of duckweed in a nutrient-limited environment have been studied and a new model developed to describe duckweed growth on wastewater. Nutrient reserve in the duckweed biomass has been found the key to the kinetics of duckweed growth. Utilization of duckweed for value-added products has a good potential. Using duckweed to feed animals, poultry, and fish has been extensively studied with promising results. Duckweed is also proven as an alternative starch source for fuel ethanol production. |
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