Laminated self-cleaning filtering device for sewage treatment and cleaning filtering method

Abstract

The invention discloses a laminated type self-cleaning filtering device for sewage treatment and a cleaning filtering method, the laminated type self-cleaning filtering device comprises an electric control valve, the electric control valve is arranged above a filter shell, and a laminated type filter element is arranged in the filter shell. The device has stable filtering efficiency and an accurate filtering effect; the structure integration degree is high and the occupied area is small; due to the unique control valve structure, full-automatic control over filtering and backwashing is achieved through one valve; due to the efficient self-cleaning performance, energy and water are saved during flushing; a backwashing water pump is not needed, and the investment is low; the corrosion resistance is good, and the service life is long; for the increasingly stringent sewage treatment discharge standard requirement, the device is used as a rear-end advanced treatment device for effluent of asecondary sewage treatment system, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of water treatment filtering equipment, in particular to a sewage treatment stack suitable for the separation of solid suspended particles in the advanced treatment of sewage treatment systems, circulating water treatment systems and reclaimed water reuse systems, so that they can be recycled. Disclosed are a sheet type self-cleaning filter device and a cleaning and filtering method. Background technique [0002] With the development of society, the country puts forward higher requirements for sewage treatment process and effluent standards. The discharge standards of sewage treatment plants and sewage treatment equipment are gradually increased to the first-level A standard, and even the surface level V or quasi-IV standard. It is required that the effluent SS≤5mg / L. The effluent of the traditional sewage treatment sedimentation and separation process can no longer meet the requirements of the discharge standard and ...

AI Technical Summary

Problems solved by technology

These filters are collectively referred to as mechanical filters, which mainly absorb particulate matter and metal ions in water through filtration and interception. This type of filter generally has large volume, complex structure, and many external pipelines; it is easy to block the filter material, take a long time to clean, and consume Defects such as large water volume greatly reduce the filtration efficiency of the filter

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