1. Policy for Self-energy sufficient society with healthy water cycle system 20 November, 2014 Kyuhyung Kim, Byungjin Yu, Yunji Baek, Doyeon Kim and Heechun Yang Department of Civil & Environmental engineering Pusan National University, Korea Team. Su Yang E

2. LID(Low Impact Development) : Approach to land development (or re-development) that works with nature to manage storm water as close to its source as possible Impermeable Layer Permeable Layer with Eco-friendly LID(Low Impact Development)

3. LID(Low Impact Development) Effect Raining Water catchment (permeable park, field) Water undercurrent ( 저류 ) Reduction of urban runoff Supply of available water Pass through underground water ( 지하수로의 침투 ) Healthy water cycle LID(Low Impact Development)

4. Importance of permeable layer 1. Set up an eco-friendly permeable layer in the Source 2. Permeable layer can catch TN, TP, SS which cause Eutrophication LID(Low Impact Development)

5. S-MFC technology for future MFC(microbial fuel cell) : basic concept for wastewater treatment and electricity production SEPARATOR Bacteria (CH 2 O) n CO 2 e-e- e-e- H+H+ ANODE CATHODE H+H+ R H2OH2O O2O2 Set up river - bed Contain many pollutants which can not remove

6. Total concept for future water cycle SEPARATOR Bacteria (CH 2 O) n CO 2 e-e- e-e- H+H+ ANODE CATHODE H+H+ R H2OH2O O2O2 Raining Water catchment (permeable park, field) Water undercurrent And pass undergound ( 저류 ) Supply of available water Healthy water cycle Water treatment and electricity production Future Policy and Technology for water cycle