The Small Flat Membrane Filtration Experimental Machine is a small-scale organic membrane experimental equipment, which is mainly used for the concentration, separation, purification, clarification and other process of the solutions in the laboratory. Can be used in biology, pharmacy, food, chemical industry, environmental protection and other fields. It is used for process experiments, such as concentration, separation, purification, clarification, and sterilization of feed liquids. It can be customized according to experimental requirements. It can be replaced with microfiltration membranes, ultrafiltration membranes, nanofiltration membranes, reverse osmosis membranes, and seawater/brackish water desalination membranes.