1. Nanotechnology and Water Treatment: Applications and Emerging Opportunities / T. Eugene Cloete -- 2. Current Molecular and Emerging Nanobiotechnology Approaches for the Detection of Microbial Pathogens / Michele de Kwaadsteniet -- 3. The Potential of Nanofibres and Nanobiocides in Water Purification / T. Eugene Cloete -- 4. Nanozymes for Biofilm Removal / T. Eugene Cloete -- 5. Nanofiltration for Water and Wastewater Treatment / Mehmet Cakmakci -- 6. Reverse Osmosis: Membranes, Materials, Applications and Nanotechnology / J. Manuel Lopez-Romero -- 7. Electrospinning Nanofibres for Water Treatment Applications / Eugene Smit -- 8. Potential Risks of Using Nanotechnology in Water Treatment on Human Health / T. Eugene Cloete