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.

Municipal sewage is treated by biochemical, secondary sedimentation tanks and membrane method and then meets discharge standards, which can effectively reduce the pollution of the environment and substantially improve the environmental quality of the residents' life. High-quality membrane treatment programme can effectively reduce energy consumption while protecting the environment.

Municipal water reuse refers to the treatment of urban wastewater or domestic sewage to meet certain water quality standards for miscellaneous urban uses (e.g., toilet flushing, gardening, car washing, and fire fighting), agricultural irrigation, and industrial uses (e.g., cooling water, processing). This is an efficient and environmentally friendly way of utilising water resources, which can alleviate the problem of urban water shortage, improve the efficiency of water resources utilisation and promote sustainable urban development.

Industrial water supply purification is one of the important means to ensure the safe and stable operation of industrial production, and the membrane technology can remove the salts, organics, heavy metal ions and other harmful substances in the water, so that it can meet the use standard. It can promote the sustainable use of water resources and promote the sustainable development of the city.

Membrane desalination technology is a technology that passes seawater through a special membrane under high pressure to separate out the salts and impurities, etc., so as to obtain fresh water. Its technology has the advantages of low energy consumption and stable water quality.