Fouling prevention, preparing for re-use and membrane recycling. Towards circular economy in RO desalination
| Autor: | Laura Rodríguez-Sáez, Serena Molina, Javier Rabadán, Junkal Landaburu-Aguirre, Eloy García-Calvo, Raquel García-Pacheco |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
Fouling Waste management business.industry Mechanical Engineering General Chemical Engineering Membrane fouling Environmental engineering 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Desalination TP Chemical technology Membrane technology Reverse osmosis plant Biofouling Membrane 020401 chemical engineering TD Environmental technology. Sanitary engineering General Materials Science 0204 chemical engineering 0210 nano-technology business Reverse osmosis Water Science and Technology |
| Zdroj: | Repositorio Institucional del Instituto IMDEA Agua instname Instituto IMDEA Agua (IMDEA AGUA) |
| Popis: | Reverse osmosis (RO) is the most employed technology for water desalination. Energy consumption and membrane fouling represent some of the major concerns in membrane technology because they increase the costs associated with treated water. Membrane lifespan is mainly correlated to the quality of the water and the operation condition and it is estimated that often membrane lifespan is 5 to 10 years. Remarkable advances have been made improving the reverse osmosis desalination by integrating pretreatment and cleaning processes. Attending to the membrane active layer, substantial research efforts have been conducted in preparing new antifouling RO membranes to i) enhance antifouling properties, ii) obtain high recovery flux and iii) have low energy requirements. However, scarce research has been detected in literature regarding end-of-life membrane management. This review summarizes the most representative research activities conducted to prevent membrane fouling. In addition, it highlights alternative routes to discarded end-of-life-membranes in order to prevent the uncontrolled disposal of fouled membranes in landfills. In this way, this review aims at summarizing research efforts found in literature in order to approach a more circular economy society, covering the whole life cycle of RO membranes: from the new development of antifouling membranes to the membrane waste management. |
| Databáze: | OpenAIRE |
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