Cleaning device for sewage treatment filtering system and cleaning method

Abstract

The invention provides a cleaning device for a sewage treatment filtering system. The cleaning device is applied to the technical field of sewage treatment. An air blower (3) of the cleaning device for the sewage treatment filtering system is communicated with one end of a connecting pipeline I (4), the other end of the connecting pipeline I (4) extends into a filtering system shell (1), the otherend of the connecting pipeline I (4) is communicated with an aeration pipe (5) positioned below an impurity filtering layer (2), the part, positioned below the multi-medium impurity filtering layer (2), of the filtering system shell (1) is communicated with a clear water storage tank (7) through a connecting pipe II (6), and a backwashing water pump (8) is arranged on the connecting pipeline II (6). According to the cleaning device for the sewage treatment filtering system, when the filtering system for sewage treatment is blocked and the filtering efficiency and the filtering quality are influenced, and the filtering system is subjected to combined backwashing, so that the backwashing efficiency is effectively improved, the backwashing cost is reduced, backwashing sewage flows back to asewage source, and the problem of secondary pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a cleaning device for a sewage treatment filter system, and also relates to a cleaning method for a sewage treatment filter system. Background technique [0002] In the process of sewage treatment, sewage treatment equipment needs to be used, and the filter layer in sewage treatment equipment is often composed of activated carbon, quartz sand and other materials to filter large particles of organic matter or flocs in sewage. However, if the filter layer uses colloids, flocs and other sediments for a long time, the pores of the filter layer will be blocked, or the filter medium will be hardened, and the filtration speed and water purification effect will decrease. The current water washing, mainly by water pump, can only wash part of the large-grained sediments, and has limited effect on colloidal flocs with strong adhesion, and uses tap water, which takes...

AI Technical Summary

Problems solved by technology

However, if the filter layer uses colloid, floc and other sediments for a long time, it will block the pores of the filter layer, or make the filter medium harden, and the filtration speed and water purification effect will decrease.

The current water washing, mainly by water pump, can only wash part of the large-grained sediments, and has limited effect on colloidal flocs with strong adhesion, and uses tap water, which takes a long time to wash and wastes water resources; while the general air washing process is easy to use The layers of other filter media such as quartz sand with different particle sizes are disrupted, and the effect of layered filtration becomes worse.

At the same time, when manually observing the water quality and cleaning it manually, there are not only large errors in water quality judgment, but also human safety hazards such as improper operation.

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