Rural water


There are two main forms of rural water use: one is the daily use of water for residents; the other is used for irrigation of fields and raising livestock. Rural water safety refers to water needed for drinking, cooking, bathing and other daily demand that meet the normal physiological needs of the human body. The safety is mainly manifested in the fact that the water quality meets human health requirement, that is, it does not contain viruses, pathogenic bacteria, pathogenic protists and pollutants that are harmful to human health.

Conventional treatment methods include filtration and disinfection.

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Sand filtration

It mainly refers to the form in which the filter medium (ie, filter material) is filled in the pool and the fluid is filtered. Commonly used filter media are sand, quartz sand, stone, anthracite, activated carbon, fiberglass, cotton, silk cloth , asbestos board, sintered materials and synthetic polymer materials.

The pool filtering has a simple structure and a large processing capacity and can remove most of the suspended matter, colloids and microorganisms in the water. However, the pollution capacity is low and the service period is short.


Filter filtration

Core filters are available in single and multi-core configurations, also known as column or membrane filters. The fluid enters the filter core support hole from the outer surface of the filter core through the filter medium and impurities are trapped on the outer surface of the filter element.


Principle of bag filter system

The bag filter is a new type of filter system. The inside of the filter is supported by a metal inner mesh. The liquid flows in from the inlet and flows out through the filter bag. The impurities are intercepted in the filter bag that can be replaced for later use. SAM bag filter system is mainly based on three kinds of filtration principles: deep filtration, surface filtration and adsorption filtration that is characterized by accuracy, efficiency and stability.



Chemical disinfection. It is commonly used by liquid chlorine and chlorine dioxide.

The investment of liquid chlorine disinfection is small. It is easy to operate and manage, but produces chlorine disinfection by-products with organic matter in water, which has adverse effects on human health. Chlorine dioxide disinfection make use of strong oxidative for disinfection and sterilization. It has a good disinfection effect but the reagents are expensive. Inorganic disinfection by-products that are difficult to store and produce a certain toxic effect. Therefore, when using chlorine to disinfect drinking water, the residual chlorine concentration must be monitored in real time at the outlet.



The sterilization effect is good with little dosage, having fast effect and few disinfection by-products, but the ozone production equipment needs large investment and high running cost.


UV disinfection

The disinfection effect is good with high efficiency and without producing toxic or harmful by-products. However, the disinfection effect is relatively affected by the SS and turbidity in the water so there is no continuous disinfection effect and the application technology is still immature.

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