The utilization direction of unconventional water sources in China mainly includes ().

The utilization direction of unconventional water sources in China mainly includes landscape water, industrial water, urban non-drinking water, agricultural water, forestry water and groundwater recharge water.

As an organic integrated system, the combination of biology and environment aims to prevent and control water pollution, improve water quality, beautify the environment, promote the protection and sustainable utilization of water resources with environmental attributes, and promote the establishment of national water security, ecological security and ecological security system.

And in order to continuously meet the needs of improving people's material and cultural living standards and coordinate the natural ecological balance and development, it is called "environmental water". Among them, a part of water is used alternately with agricultural water, urban water and special water.

Enterprises in different places have different locations, and some are near the lake; Some are built by the river; Some idle spring; The others are on the beach. So they use different water sources. For example, most enterprises in some cities in the south use surface water such as rivers and lakes; Some enterprises in coastal cities use a lot of seawater.

However, some enterprises in the north use a lot of groundwater such as spring water and well water. In some cities, part of sewage is used for industrial water, so sewage can also be used as the source of industrial water. Therefore, any source that can provide water for industrial production is the source of industrial water.

Tap water supply and self-provided water supply are both ways of industrial water supply. Because most industrial enterprises are concentrated in cities, industrial water supply system and urban domestic water supply system have become the main water supply systems in cities. Most urban water supply systems use tap water, so tap water supply is the main water supply method for industrial water.

Sea water, salt water. In recent years, due to the lack of conventional water resources and the increase of water consumption, some coastal and water-deficient places gradually began to use unconventional water resources, which gradually replaced conventional water resources in industrial water use and played a role in production, such as Tianjin and Qingdao.

Sewage resources. In the case of frequent water crises, some inland cities gradually realize that drainage has potential. Sewage is also a kind of resource and an unconventional water resource, which is gradually used or expanded in various places, such as Beijing, Tianjin, Taiyuan and other cities. Reclaimed water and reclaimed water after urban sewage treatment are used in some industrial production departments.