1. Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
2. Aarhus University Centre for Water Technology, Department of Biology, Section for Microbiology, Aarhus University, Aarhus 8000, Denmark
3. UCAM-SENS, Universidad Católica San Antonio de Murcia, UCAM HiTech, Avda. Andres Hernandez Ros 1, Murcia 30107, Spain