Inorganic ceramic membranes are much more expensive than organic membranes, primarily due to the following reasons.
High material costs: Ceramic membranes utilize high-performance ceramic materials such as alumina, zirconium oxide, and silicon carbide, while organic membranes use polymers (such as PVDF and PES), resulting in a large difference in raw material costs.
Complex manufacturing processes: Ceramic membranes require high-temperature sintering (above 1800°C), leading to high energy consumption; organic membranes can be mass-produced through simple phase separation or stretching processes.
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