1. Geomicrobiology Group, School of Life SciencesUniversity of Dundee Dundee DD1 5EH Scotland, UK
2. Concrete Technology Group, Department of Civil EngineeringUniversity of Dundee Dundee DD1 4HN Scotland, UK
3. State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution ControlCollege of Chemical Engineering and Environment, China University of Petroleum 18 Fuxue Road, Changping District, Beijing 102249 China