[1]Environmental Simulation and Pollution Control State Key Joint Laboratory State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC) School of Environment Tsinghua University Beijing 100084 China;
[2]Collaborative Innovation Center for Advanced Nuclear Energy Technology Institute of Nuclear and New Energy Technology Tsinghua University Beijing 100084 China;
[3]Kurita Water Industries Ltd. Nakano-ku Tokyo 164-0001 Japan;
[4]Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua-Berkeley Shenzhen Institute Shenzhen 518055 China;
Reverse osmosis; Membrane fouling; Humic acid; Ca^2+; Ozone;