Shengkun Yang, an M.Eng. student in the environmental and water quality engineering track, is participating in the Global Social Entrepreneurship Competition at his alma mater, the University of Washington. Yang’s team, Aquafiltro, has designed a drinking-water ceramic-filtering system for use in Ghanaian households. The team was selected from a pool of 91 to compete in the week-long semi-finals and finals this week, Feb. 25 to March 1. The final rounds can be viewed online Feb. 28 from 4 p.m. to 7 p.m. (Eastern time).