Seawater contains a large amount of suspended solids, colloids, salts, hardness, dissolved gases, bacteria and algae, etc. These harmful substances should be removed before seawater desalination to reduce their adverse effects on the subsequent desalination system. Seawater desalination is the process of removing excess salt and minerals from seawater to obtain fresh water, and is the process of converting seawater into usable water resources for human drinking, irrigation and industrial needs.
Membrane filtration technology is becoming the technology of choice for safe drinking water. Suspended particles, microorganisms and some soluble salts must be removed as they can contaminate drinking water and have a negative impact on public health. Membrane Solutions provides a variety of filters to meet different requirements of water quality.
With the continuous expansion of the construction scale of large thermal power units, the parameters and capacity of the units are continuously improved, and the chemical water treatment of power plants is also undergoing profound changes. The impetus for this change mainly comes from the requirements of high-parameter and large-capacity units for water quality and the need for environmental protection.
Ultra-pure water (UPW) is usually considered to be water with resistivity greater than 18MΩ.cm or close to 18.3MΩ.cm at 25oC, in which the conductive medium is almost completely removed, and the non-dissociated colloidal substances, gases and organic matter are removed to a very low degree. Now the ultra-pure water preparation adopts pre-treatment, electrodialysis (EDI) ultraviolet sterilization, reverse osmosis (RO), ion exchange and a variety of membrane filtration technologies.