Membrane municipal tap water upgrading refers to the use of membrane technology for deep treatment of municipal tap water to improve water quality standards to meet higher water demand. The principle is to use the selective permeability of the membrane to remove the harmful substances in the tap water, while retaining the mineral elements that are beneficial to the human body.

Membrane municipal tap water upgrading is an efficient and environmentally friendly method of water quality enhancement, which can meet higher water demand, improve urban water supply security capacity and promote sustainable urban development.