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Вопрос		Ответ
Now I’d like to tell you about membrane process classification. начать обучение		*
The degree of selectivity of a membrane depends on the membrane pore size. начать обучение		*
Depending on the pore size, they can be classified as microfiltration (M F), ultrafiltration (U F), nanofiltration (N F) and reverse osmosis (R O) membranes. начать обучение		*
Membranes can also be of various thickness, with homogeneous or heterogeneous structure. начать обучение		*
Membranes can be neutral or charged, and particle transport can be active or passive. начать обучение		*
The latter can be facilitated by pressure, concentration, chemical or electrical gradients of the membrane process. начать обучение		*
Membranes can be generally classified into synthetic membranes and biological membranes. начать обучение		*

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