Improving the energy efficiency of reverse osmosis plants

Abstract

There is a large water consumption at machine-building enterprises. Water purification after use is an important task. Requirements for environmental regulations are being tightened and it is important to comply with all regulations at enterprises. It is shown that membrane methods of separation of liquid systems are promising. The advantages and disadvantages of reverse osmosis are analyzed. The principle of operation of reverse osmosis units is described. The feasibility of using a jet pump installed on the concentrate line for the purpose of energy recovery has been assessed. The characteristics of the string pump were calculated, including the efficiency value.