For traditional heterotrophic denitrification technology, organics are usually added as the electron donor for nitrate removal, which increases operation cost wastewater treatment. Solar panel production contains a large amount of nitrate. To decrease and reduce CO2 emissions, an iron anode microbial fuel cell (Fe-MFC) was constructed to treat solar by sequencing batch operation. The results sh...

Light is the widely available and pervasive resource in our daily life. Existing research shows that light can be used in localization in wireless sensor networks. Meanwhile, our former work also indicates that wireless sensor networks can track light sources. In this paper, we demonstrate iBrush1, a system which allows users to write Chinese characters with a flashlight and a sensor grid.