MA Bao-dong1, GAO Bao-yu2*, LU Lei3, ZHANG Yong-qiang2
1. Geological Scientific Research Institute, Shengli Oil Field Branch, China Petrochemical Co. Ltd., Dongying 257015, China;
2. School of Environmental Science and Engineering, Shandong University, Jinan 250100, China;
3. College of Chemistry & Chemical Engineering, China University of Petroleum(East China), Qingdao 266555, China