My name is Olubunmi. I am taking this course from Nanjing, China. Nanjing is a beautiful city with a lot of historical scenes, the people are lovely. I am a PhD student at Nanjing University of Science and Technology, my area of research is removal of disinfection by-product, specifically, NDMA removal from surface raw water. I am taking this course to understand the interactions of water pollutants with coagulants and granular media at the molecular level. Thank you.