Classification of quartz sand filters

Classification of quartz sand filtersThere are generally two types: one is conventional quartz sand filters, also known as shallow media filters. The other type is the emerging filter, called continuous sand filter, also known as flow sand filter. It differs from conventional sand filters in that it cleverly separates the filtration and sand washing processes at different locations, without the need for a clean water tank or a high-power backwash water pump, allowing for continuous and stable filtration operation.

Equipment function:

Quartz sand filter is a type of filter material that uses quartz sand as a filler. Beneficial for removing impurities from water. It also has the advantages of low filtration resistance, large specific surface area, strong acid and alkali resistance, and good pollution resistance. The advantage of quartz sand filter is that it achieves adaptive operation of the filter by optimizing the design of the filter material and filter. The filter material has strong adaptability to raw water concentration, operating conditions, pre-treatment processes, etc., that is, the filter bed automatically forms an upper sparse and lower dense state during filtration, which is conducive to ensuring effluent under various operating conditions

Water quality, the filter material is fully dispersed during backwashing, and the cleaning effect is good. Sand filters can effectively remove suspended solids in water and have a significant removal effect on pollutants such as colloids, iron, organic matter, pesticides, manganese, bacteria, viruses, etc. And it has the advantages of fast filtration speed, high filtration accuracy, and large interception capacity. Mainly used in various fields such as power, electronics, beverages, tap water, petroleum, chemical, metallurgical, textile, papermaking, food, swimming pools, municipal engineering, etc. for the deep treatment of process water, domestic water, recycled water, and wastewater.

Scope of application:

Classification of quartz sand filters

(1) Used for industrial water, domestic water, and municipal water supply systems that require effluent turbidity ≤ 5mg/L to meet drinking water quality standards;

(2) Removal of suspended solids and solid substances in industrial wastewater;

(3) Can be used as pre-treatment equipment in ion exchange softening and desalination systems, as well as coarse filtration equipment for industrial water supply with low water quality requirements;

(4) And used in swimming pool circulation treatment systems, cooling circulation water purification systems, etc.

Working Principle:

The operation of filters can be divided into two relatively independent yet simultaneous processes: raw water filtration and filter material cleaning and regeneration. The two are completed at different positions within the same filter, with the former relying on high differential or pump lift for power, while the latter is accomplished through compressed air.

Quartz sand filter is a filter that uses one or several filtering media, operates at room temperature, is resistant to acid and alkali, and oxidizes, with a pH range of 2-13. Well configured protection devices and monitoring instruments in the system,

And it has a backwash function, which quickly washes away dirt and other pollutants, consumes less water, and can be set to fully automatic function according to user requirements. Under a certain pressure, the original liquid is passed through the medium for coagulation, adsorption, and interception

Stay and remove impurities to achieve the purpose of filtration. The fillers inside are generally quartz sand, anthracite, granular porous ceramics, manganese sand, etc. Users can choose to use them according to their actual situation. Activated carbon filters are mainly used to adsorb free chlorine in water (with an adsorption capacity of 99%), and also have high removal rates for organic matter and color. It is a pretreatment equipment for the pure water production process of softening and desalination systems. The filter material is activated carbon. The main materials of the equipment are anti-corrosion carbon steel, fiberglass, stainless steel, etc.