New D-type filter technology 

New D-type filter technology

summary

The new D-type filter is an efficient fiber filter based on the traditional filter structure and DT adaptive fiber filter material.

The new D-type filter tank is composed of water distribution channel, V-shaped groove, surface consisting of scanning and milling holes, intercepting cover plate, DT adaptive fiber filter material, filter plate, long handle filter head, manhole, water distribution air hole, filter beam and backwash drainage channel.

The new D-type filter tank adopts DT adaptive fiber filter material, small resistance water distribution system, air-water backwashing, and constant or variable water level filtration. The new D-type filter tank has many advantages of the traditional filter tank. At the same time, the DT self type filter tank has many advantages of the traditional filter tank. At the same time, the DT adaptive high-efficiency filtering technology is used. Its performance is superior to the traditional filter tank in many aspects. It is a practical, new and efficient filter tank.

The new D-type filter is applied to municipal water supply project, industrial water supply project and reclaimed water reuse project.

characteristic

DT adaptive fiber filter material is adopted, which has all the advantages of traditional filter tank.

The special water distribution and air distribution system is used to completely avoid the common dead angle and penetration in the filtering process.

The filtering speed is fast, generally controlled at 15~25m/h.

High filtering accuracy: ≥ 5 μ The removal rate of suspended solids of m is more than 95%.

The sewage receiving capacity is large, generally 15-35kg/m3.

The backwashing water consumption rate is low (about 0.5~2%), and the operation cost is saved.

The floor area is small. When the water production capacity is the same, the floor area is less than 40% of the V-shaped filter.

The filtration cycle is long, generally 8~24h.

The effluent quality is good, generally less than 1 NTU.

The economic dosage is low, and the filtering precision is higher than that of the filter bed. When micro flocculation forms small particles, it can be effectively filtered, so the operation cost is saved.

The control can adopt manual control and automatic control, customized according to the actual needs of customers.

The unique interception technology can ensure that the filter material will not be lost during backwashing.

The surface sweeping function makes the backwashing process more perfect.

It has two structural forms, steel and concrete, which can be selected according to users and actual needs to save investment costs to the greatest extent.

It has strong impact resistance to the fluctuation of inlet water quality. Due to the characteristics of the filter bed structure and filter material, the filter can still ensure the outlet water quality when the pre-treatment equipment of the filter fails in a short period of time or the water quality fluctuates significantly in a short period of flood.

Schematic Diagram of Filter and Backwashing