1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
2. University of Chinese Academy of Sciences, Beijing 10069, China
3. Solid Waste and Chemicals Management Center, Ministry of Ecology and Environment (MEE), Beijing 100029, China
4. Norwegian Geotechnical Institute (NGI), P.O. Box 3930 Ullevaal Stadion Oslo, N-0806, Norway
5. Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway