WaterTank is a community for the finalists of the Stockholm Junior Water Prize competition.

Li Yu from China

"We (team mate Tan and Li) live in cities in China and it is not very common to see biogas pools. By chance, we attended a school activity. We came to know about the biogas pool and we were curious about its ability to turn sewage into clean energy. So we went along with our curiosity and we found that biogas pools are very common in Europe and in developing countries. So, Tan and I created a project team and put forward our idea on how to improve the fermentation process in biogas pools. After doing some experiments we found that with methane put in at a suitable time into the fermentation process with our automatic system, the fermentation process improved as well as it increased the concentration of methane. We had many challenges with the experiments. The first time we did experiments, we didn’t have the power to activate the system, so it could not play its part. It didn't produce any gas. We were scared that the system was broken but with help, we were able to fix it. When we were sure it had worked, we felt so happy that we jumped around in the lab." For full interview click here.

Patent granted to 2013 alumnus Malcolm A Barnard!

WaterTank alumnus Malcolm Barnard filed for patent before entering his project into the 2013 SJWP US edition. Having continuosly worked on his project and improved it over the years he now has received the patent! “Algal System for Improving Water Quality.” The full text of the patent can be found at https://malcolmbarnard.academia.edu/research#patents