Question

Which of the following is untrue?

(a) Membrane separation follows the law of conservation of energy

(b) Membranes are used for separating components in food on a molecular basis

(c) Membrane separation cannot be used in ultrafiltration of blood proteins

(d) Reverse osmosis is an important application in membrane separation

This question was addressed to me in semester exam.

I need to ask this question from Basic Principles of Food Process Engineering topic in division Introduction & Unit Systems of Food Processing Unit Operations

Answer 1

The correct option is (c) Membrane separation cannot be used in ultrafiltration of blood proteins

The explanation is: Membrane separation follows the law of conservation of mass and energy. The membrane separation is used to separate gaseous and liquid streams. It is also used in ultrafiltration for concentrating solutions of large polymetric molecules like blood proteins and milk molecules.Reverse osmosis is a water treatment where sufficient pressure applied against the water to force it through a semi permeable membrane, the water molecules are separated from other constituents within the water.