Efficient supporting layer structure for advanced treatment of filter material

Abstract

The invention relates to an efficient supporting layer structure for advanced treatment of a filter material, and the efficient supporting layer structure structurally comprises three layers from bottom to top, namely a first large-particle-size filter material layer, a second medium-large-particle-size filter material layer and a third large-particle-size filter material layer in sequence. By redesigning and calculating the supporting layer structure of the filter material in the water treatment advanced treatment stage and optimizing a large number of tests, the backwashing strength can be improved by 3-5 times on the basis of ensuring uniform water distribution, gas distribution and no mixing of the filter material layer, so that the filter material layer can be protected to the greatest extent, the service life of the filter material is prolonged, the operation cost is reduced, and the flushing energy consumption is reduced. Practice proves that the filter material supporting layerdesigned by the invention are utilized in a water treatment filter tank and a water treatment filter tank in an advanced treatment stage, so that the service life of the filter material exceeds 5 years, and the filtering effect is still good.

Description

technical field [0001] The invention relates to the technical field of filter material supporting layer structures of water treatment filter pools and water treatment filter tanks, in particular to a high-efficiency supporting layer structure for advanced treatment of filter materials. Background technique [0002] With the development of the economy, the country's requirements for environmental protection have been increasing year by year, and urban water consumption has increased year by year. Old sewage treatment plants are facing upgrading and renovation, and reclaimed water reuse plants are facing new challenges in improving water quality. The existing advanced treatment water treatment filter and water treatment filter tank, in which the structure of the advanced treatment filter material layer is a single layer, although it can effectively remove specific pollutants, it is difficult to deal with complex water inflow conditions, and the filtration rate is slow , while ...

AI Technical Summary

Problems solved by technology

The existing advanced treatment water treatment filter and water treatment filter tank, in which the structure of the advanced treatment filter material layer is a single layer, although it can effectively remove specific pollutants, it is difficult to deal with complex water inflow conditions, and the filtration rate is slow , while the existing support layer is only suitable for single-layer filter materials, and in the case of using multiple multi-layer filter materials, the filtration rate and backwash intensity will decrease

Therefore, the supporting layer structure of the existing advanced treatment water treatment filter tank and water treatment filter tank cannot meet the requirements of various multi-layer filter material layer structures. After a long period of use, it needs to be replaced regularly, the service life of the filter material is short, and water resources are consumed. Large, high processing energy consumption, and not conducive to reducing operating costs

Images