Water treatment cushion layer pebble filter material

Pebble filter materialCommonly known as support layer filter or cushion layer filter, it is widely used in water treatment support layers such as waterworks, machine filters, and cation exchange. Used for chemical plants, sewage treatment plants, steel mills, water treatment plants and other projects. Good water purification effect and easy flushing, long service life, high cost-effectiveness, it is currently one of the main water purification materials used in double-layer and three-layer filters.

Pebble filter materialWhen in use, it is mostly placed under the filter layer and used in conjunction with anthracite filter and quartz sand filter. It mainly has the function of intercepting suspended solids in water. Pebble filter material is used as a support layer for the cushion layer in water treatment. Whether it is a filter tank or a filtration tank, goose stone filter material is filled underneath. And the main reason for using pebble filter media in filtering water is that pebble filter media contains up to98%Silicon dioxide, similar to quartz sand filter media, is mainly used to prevent the loss of filter media from the distribution water during filtration and to provide a certain degree of uniform water distribution during flushing. Simultaneously intercepting and removing sediment, suspended solids, colloidal particles, microorganisms, chlorine, and some heavy metal ions from water, achieving the goal of reducing water turbidity and purifying water quality.

When using pebble filter material as a water treatment filter material cushion layer, the smaller particle size is generally not less than 2mm, while the larger particle size is considered to not damage the water flow impulse under conventional backwash intensity, usually 32mm. Different particle sizes of cushion materials are usually arranged in layers, and it is not recommended to use homogeneous filter material. If the supporting layer causes mixing and sand leakage, the filter cannot work.

When using pebble filter material as a support layer, due to the small particle size and high specific gravity of the lower layer filter material, the support layer needs to be adapted to it, and a heavy support layer is used. If a low resistance water distribution system is used, the supporting layer can be omitted, or some coarse sand or fine gravel can be appropriately laid, depending on the specific situation of the water distribution system.

The commonly used specifications for pebble filter media produced by Dingdong Water Treatment Filter Media Factory in Gongyi City are 2-3cm, 3-5cm, 5-8cm, 8-16mm, and 16-32cm.