“Gray water” is relative to the case of water supply and water drainage.
Waste water reuse technology, refers to the community residents (dirty) water (bath, toilet, laundry, kitchen, toilet) concentration after processing, reach a certain standard for residential green water, car wash, roads, water, family sit implement flushing, etc., so as to achieve the purpose of saving water.
Classification according to the use
There are three kinds of water for use in different way
1. One is the handle to the drinking water standard and direct reuse to daily life, realize the water resource recycle directly, this approach is suitable for the region water resources are lack, but high investment, complex process;
2. The other is the handle to the drinking water standard, mainly used in direct contact with the body of water, such as toilet flushing, ground, car cleaning, greening labor, fire control, industrial ordinary water, etc., which is the normal water treatment.
3. The industry can use water reuse technology will achieve effluent standard industrial wastewater for reprocessing, usually with demineralized water equipment to the level of the mixed bed, can undertake industrial recycling, save the capital and the purpose of protecting the environment.