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RISApplication of Cardo-type polyimide (PI) and polyphenylene oxide (PPO) hollow fiber membranes in two-stage membrane systems for CO2/CH4 separation
سال: 2008
خلاصه:
In this study, a two-stage membrane system for the separation of CH4/CO2 was designed
based on a series of laboratory-scale experiments obtained using two types of commercial
hollow fiber membranes including polyphenylene oxide (PPO...
highly selective and efficient transport of lead (II) cations in natular water using a liquid membrane system with dicyclohexano-18-crown-6 as carrier.
سال: 2011
خلاصه:
industrial cffluents contaninig highly toxic and non-biodegradable heavy metal cations are generated in hydrometallurgy electroplating and electrochemical industry.