Reclaimed water treatment and reuse is an effective win-win method for water conservation and pollution control. It is used in domestic sewage and some industrial sewage in residential areas, construction areas, hotels, nursing homes, comprehensive buildings, etc. After treatment, the reclaimed water can be used for flushing toilets, cars, road greening, watering green spaces and compensating boiler water. Reclaimed water mainly refers to non-potable water that reaches certain water quality standards after urban sewage or domestic sewage treatment and can be reused within a certain range. Its water quality is between that of upper water and sewage. Reclaimed water is the reuse of urban sewage. After processing, it is reused as a renewable resource. Due to the stable water volume of urban sewage and the economical investment in infrastructure, many countries have regarded reclaimed water reuse as the preferred solution to solve the water shortage problem. Therefore, carrying out reclaimed water reuse shows the dual effects of open source and pollution reduction. Address: South Courtyard, Guandimiao Road, Jiugong, Daxing District, Beijing, telephone, fax, mobile phone, contact person: Ms. He
Treatment method
The first is to treat it to drinking water standards and reuse it directly in daily life , that is, to realize the direct recycling of water resources. This treatment method is suitable for areas with extreme shortage of water resources, but the investment is high and the process is complex
One is to treat it to non-drinking water standards, which is mainly used for non-drinking water. Water that comes into direct contact with the human body, such as toilet flushing, floor and car cleaning, greening watering, fire fighting, general industrial water, etc. This is the usual reclaimed water treatment method.
According to the treatment method, the gray water treatment process is generally divided into three types
Physical treatment method
The characteristics of this process are that the device is compact, easy to operate, and is less affected by load changes.
Physical and chemical method
Suitable for situations where the quality of sewage changes greatly. Commonly used methods include sand filtration, activated carbon adsorption, flotation, coagulation and sedimentation, etc. Biological treatment method is suitable for sewage with high organic content. Generally, biological treatment methods such as activated sludge method, contact oxidation method, and biological turntable are used. It can be used alone or in combination with several biological treatment methods, such as contact oxidation + biological filter, biological filter + activated carbon adsorption turntable, ten sand filtration and other processes.
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Reclaimed water equipment