字幕列表 影片播放 列印英文字幕 ♪ KU choral chant ♪ ♪ soft music ♪ Emily: This goes back to high school. So I was taking an environmental science class and we talked about algae for about a week and I thought it was the coolest thing I'd ever heard - using algae to fuel cars. When I got to KU and I took a class and Belinda visited our class, she talked about the algae at the wastewater treatment plant and what she was doing. I knew I wanted to work with her. Belinda: This would be a really typical lagoon in western Kansas, so what we'll do is sample and hopefully have enough that we can create meaningful biofuel. Emily: As I've been working here, we've gotten the greenhouse, we've gotten the raceway ponds so we can do large-scale experiments. The end result with growing algae in the greenhouse is we get cleaner water from the algae and then we get a concentrated algal mass to turn into biofuel. ♪ upbeat music ♪ Belinda: All of my students amaze me. I will pop into the lab at random times. I'm at home and I remember something and I need to come in and I will see students there. An undergraduate like Emily, who's been working in my lab for two years, she knows how I like research to be conducted and she thinks independently. At this point, I wish I could just keep them forever. Emily: What I'm adding is an algae media and it just has nutrients like nitrogen, phosphorus, other things that not only help the algae grow, but mimic the composition of wastewater and that's the key component to growing algae off of wastewater is to see if it will remove that nitrogen and phosphorus that we don't want in the water. It starts off a light tint of green and over time this will just turn darker and darker. In the course of a week, it will be really dark green. So once this algae is really dense, we will hose it into a large centrifuge which will spin it very quickly. It will capture the algae within and the water will be discharged out another hose - completely fresh water. The algae will be kind of a toothpaste consistency, and we can run tests on it - see how good of algae it is, turn it into fuel, and test those properties. Susan: The Feedstock to Tailpipe initiative is really unique because it brings together faculty and scientists and students. With our group here, at KU, we have expertise in the growth and utilizing wastewater for growing the algae and the conversion of that biomass into higher value products and then the utilization of the oil or the fuels we produce in engines so we really can understand the entire range and how it all works together. Emily: That's one of the aspects - is trying to make a process that is low tech, that can be done maybe in rural areas. Like in western Kansas, if they have these lagoons, they could implement a process like this - growing algae to remove that nitrogen phosphorus. ♪ dramatic inspiring music ♪ The thing I enjoy most is starting these ponds and then coming in every day because they wouldn't be here if it weren't for me and if I didn't feed them. I'm making sure these algae are doing well and they're growing up good and strong for us to make fuel. ♪ music ends ♪
B2 中高級 科大學生種植海藻,用於生物燃料和清潔水源 (KU students grow algae for biofuel, cleaner water) 83 13 richardwang 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字