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Quartz sand filter for shallow industrial water

JOHNSON SCREEN

Quartz sand filter for shallow industrial water

Introduction of quartz sand filter

The quartz sand filter is a pressure-type filter. It adopts stainless steel filter nozzles or spherical cap-type porous plates with quartz sand pads to distribute water hierarchically. It contains several kinds of refined quartz sand filter materials with small resistance and large flux.
The filler in the filter is used to retain and remove suspended particles and colloidal impurities in water.

Working principle of quartz sand filter

In the process of precipitation and clarification of water treatment, some large solid particles or easily settled impurities in water are removed. But to further purify water, a filtration method is needed to make water pass through the filter layer of quartz sand from top to bottom and from small to large different particles, and then the impurities such as fine particles, colloids, and organic substances in water are intercepted, Thus, the water can be further clarified and purified, and the turbidity of water will be reduced.
The backwash time of the quartz sand filter is determined according to the water head loss of equipment or the time of filter operation. Through the opening and closing of various valve bodies configured on quartz sand filter, the quartz sand filter material inside the equipment is backwashed, and the debris deposited on the medium is washed clean, and the equipment enters a new filtering cycle.

Bluslot provides backwash wedge wire screen filter customized service for quartz sand filter elements.

The function of quartz sand filter

A sand filter can effectively remove suspended solids in water, and has an obvious removal effect on the colloid, iron, organic matter, manganese, bacteria, virus, and other pollutants in water. It has the advantages of fast filtration speed, high filtration precision, and large capacity of sewage interception.
It is mainly used in power, electronics, beverage, tap water, petroleum, chemical, metallurgy, textile, paper, food, swimming pool, municipal engineering and other process water, domestic water, circulating water, and wastewater deep treatment fields.

Matters needing attention in the design of quartz sand filter tank

Quartz sand filter is a pressure filter, so the inlet pressure must reach 3-4kg, so as to ensure the outlet flow of the filter.
Filter material selection requirements: the sand diameter of the filter layer is 0.5-1.2mm, which ensures the filtering effect. The cushion layer has 1-2mm and 3-4mm, which mainly ensures the water trafficability, not only reduces the water resistance but also has a certain filtering effect.

Application scope of quartz sand filter

Quartz sand filter can be widely used in electronic power, petrochemical, metallurgical electroplating, paper and textile, pharmaceutical dialysis, food and beverage, drinking water, water for factories and enterprises, swimming pool, etc. It can meet the needs of liquid filtration in various industries.
Quartz sand filtration is one of the effective means to remove suspended solids in water. It is an important unit in advanced wastewater treatment, wastewater reuse, and water supply treatment.
Its function is to further remove the pollutants that have been flocculated in the water. It can achieve the purpose of water purification through the interception, sedimentation, and adsorption of filter materials.