GB/T 29749-2013Guideline for water system integration and optimization of industrial enterprises (English PDF)

3.1 Water systems integration optimization

The entire water system as an organic whole, each in accordance with the process of water quantity and quality, systematic and integrated manner with a reasonable allocation

Water, new water and wastewater emissions from the use of water systems in meeting the given constraints at the same time to minimize the optimal approach.

3.2 Water unit water-usingunit

Need water or wastewater generated relatively independent of the production process, the device (equipment) or production workshop, and other departments.

3.3 Wastewater directly

One or more waste water generated was used directly in units other water units.

3.4 Wastewater recycling

One or more units with water to produce treated wastewater used for one or more of the water unit (cycle), or for other water unit.

4.1 systematic principle

Should systems engineering perspective, focusing on the water system as a whole, in full grasp of each unit of water, based on the state of the business in order to achieve

A whole new water and wastewater discharge water systems as the objective of water systems to optimize the design.

4.2 Scientific Principles

And it should be the source of new processes to reduce the amount of water and wastewater emissions, establish and improve water reuse system, giving priority to the direct use of waste water,

Second, consider the waste water recycling.