Seawater desalination pretreatment method

[0037] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0038]In reverse osmosis membrane seawater desalination (abbreviation: membrane seawater desalination) projects, membrane filtration (ultrafiltration membrane filtration or microfiltration membrane filtration) is often used as the last pretreatment unit before the reverse osmosis membrane enters water. The effluent water quality of membrane filtration is excellent and stable, which can ensure the long-term stable operation of the subsequent reverse osmosis membrane system. Usually, pretreatment units such as "coagulation sedimentation", "coagulation air flotation", and "media filtration" are supplemented before membrane filtration into the water to form a complete pretr