Do you know the membrane separation technology in water treatment equipment?

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27 Jul 2023

Membrane separation technology is widely used in the field of water treatment equipment

Membrane separation technology is widely used in the field of water treatment equipment

With the shortage of global water resources supply and the increasing problem of water pollution, membrane separation technology as an efficient and reliable water treatment technology has been widely used in the field of water treatment equipment.
This paper will introduce the principle of membrane separation technology, different types of membrane separation equipment and its application in water treatment.

First, membrane separation technology is a semi-permeable membrane based separation process that can achieve the removal of contaminants in water by selectively preventing the transport of solutes or solvents. Membrane separation equipment usually consists of membrane module, pressure device and other auxiliary equipment. The membrane module can select different types of membranes according to different separation processes, such as microfiltration membranes, ultrafiltration membranes, reverse osmosis membranes, etc.

Secondly, membrane separation technology has a wide range of applications in the field of water treatment equipment. Among them, the microfiltration membrane is used to remove suspended solids, colloidal particles and macromolecular organic matter in water. Ultrafiltration membrane can remove bacteria, viruses, colloidal particles and the large molecular weight of organic matter. Reverse osmosis membrane can remove dissolved inorganic salts, heavy metals, organic matter, etc., to achieve the preparation of high purity water.

In addition, membrane separation technology can also be applied to seawater desalination, wastewater treatment, drinking water purification and other fields.

The application of membrane separation technology in the field of water treatment equipment has many advantages. First, compared to traditional filtration and precipitation methods, membrane separation technology can achieve higher separation efficiency and better water quality. Secondly, the membrane separation equipment has a compact structure and takes up less space, which is suitable for water treatment systems of various sizes. In addition, the membrane separation technology also has the characteristics of simple operation, high degree of automation and strong controllability.

However, membrane separation technology also faces some challenges in the field of water treatment equipment. For example, the issue of membrane contamination is a key issue to be addressed because membrane surfaces are prone to being clogged and attached by contaminants. In addition, membrane separation equipment has high operating costs, including energy consumption, maintenance and membrane replacement.

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