Integrated lightweight filter-material water treatment filter tank

Abstract

An integrated lightweight filter-material water treatment filter tank is characterized by comprising at least a water treatment unit. The water treatment unit comprises a tank. The tank is composed of a clear water area, a filtering area and a water inlet area which are communicated with each other through water-flow from the top to the bottom. Adjacent two areas of the above three areas are isolated through a filter board respectively. The filter board is provided with several water channels used for water flowing. The water inlet area has a water inlet used for receiving sewage to be filtrated. The filtering area holds several lightweight elastic filter material particles which have lower density than water. Particle size of the lightweight elastic filter material particles is greater than width of the water channels. After water-flowing, each lightweight elastic filter material particle forms a filter layer, and there is a gap between the filter layer and the lower filter board. The top of the clear water area is an overflow surface of clear water. The filter tank has advantages of good filtering effect, low backwashing requirement, high reliability, low cost, low operation cost, less land occupation and convenience in operation management.

Description

technical field [0001] The invention relates to the field of environmental water treatment, in particular to an integrated water treatment filter using light filter material, which is used for treating sewage after physical and chemical treatment. Background technique [0002] Filters are an indispensable and important link in the field of water purification (such as waterworks), and generally use quartz sand filter media for water treatment filters. It can also be used in the treatment of industrial water, industrial wastewater and domestic sewage. [0003] Its structure and operating principle of this existing quartz sand filter tank are as follows: [0004] The filter uses quartz sand filter material as the filter medium. The particle size of the filter material is usually 0.5~1.2mm, the specific gravity is 2.5, and the thickness of the filter layer is ~700mm. A support layer composed of small to large coarse sand to prevent the loss of the quartz sand filter material. ...

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